From 5e27c2aa7c69c784afa4ece13dc861d4705b5ba7 Mon Sep 17 00:00:00 2001
From: ltx <1006158920@qq.com>
Date: Thu, 2 Jul 2026 10:05:51 +0800
Subject: [PATCH] =?UTF-8?q?add=EF=BC=9A=E6=B5=B7=E5=BA=B7sdk?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 Controllers/HikvisionController.cs            |    81 +
 Hikvision/CHCNetSDK.cs                        | 20433 ++++++++++++++++
 Models/AlarmRecord.cs                         |    63 +
 Models/CameraConfig.cs                        |    33 +
 Models/HikvisionCameraStatus.cs               |    36 +
 Options/HikvisionOptions.cs                   |    69 +
 Program.cs                                    |     3 +
 Services/HikvisionAlarmStore.cs               |    92 +
 Services/HikvisionIngestWorker.cs             |   382 +
 Services/IHikvisionAlarmStore.cs              |    51 +
 Services/IRealtimeNotifier.cs                 |    15 +
 Services/SignalRRealtimeNotifier.cs           |    15 +
 appsettings.json                              |    17 +
 ...ngCompetition_Api.csproj.nuget.dgspec.json |    10 +-
 obj/project.assets.json                       |     6 +-
 obj/project.nuget.cache                       |     4 +-
 16 files changed, 21300 insertions(+), 10 deletions(-)
 create mode 100644 Controllers/HikvisionController.cs
 create mode 100644 Hikvision/CHCNetSDK.cs
 create mode 100644 Models/AlarmRecord.cs
 create mode 100644 Models/CameraConfig.cs
 create mode 100644 Models/HikvisionCameraStatus.cs
 create mode 100644 Options/HikvisionOptions.cs
 create mode 100644 Services/HikvisionAlarmStore.cs
 create mode 100644 Services/HikvisionIngestWorker.cs
 create mode 100644 Services/IHikvisionAlarmStore.cs

diff --git a/Controllers/HikvisionController.cs b/Controllers/HikvisionController.cs
new file mode 100644
index 0000000..997394a
--- /dev/null
+++ b/Controllers/HikvisionController.cs
@@ -0,0 +1,81 @@
+using Microsoft.AspNetCore.Mvc;
+using YD_TrainingCompetition_Api.Models;
+using YD_TrainingCompetition_Api.Options;
+using YD_TrainingCompetition_Api.Services;
+
+namespace YD_TrainingCompetition_Api.Controllers;
+
+[ApiController]
+[Route("api/[controller]")]
+public class HikvisionController : ControllerBase
+{
+    private readonly IHikvisionAlarmStore _alarmStore;
+    private readonly ILogger<HikvisionController> _logger;
+
+    public HikvisionController(IHikvisionAlarmStore alarmStore, ILogger<HikvisionController> logger)
+    {
+        _alarmStore = alarmStore;
+        _logger = logger;
+    }
+
+    /// <summary>
+    /// 获取所有报警记录
+    /// </summary>
+    [HttpGet("alarms")]
+    public ActionResult<IReadOnlyCollection<AlarmRecord>> GetAlarms(
+        [FromQuery] string? deviceId = null)
+    {
+        if (!string.IsNullOrWhiteSpace(deviceId))
+        {
+            return Ok(_alarmStore.GetByDeviceId(deviceId));
+        }
+        return Ok(_alarmStore.GetAll());
+    }
+
+    /// <summary>
+    /// 获取最新报警
+    /// </summary>
+    [HttpGet("alarms/latest")]
+    public ActionResult<AlarmRecord?> GetLatestAlarm(
+        [FromQuery] string? deviceId = null)
+    {
+        if (!string.IsNullOrWhiteSpace(deviceId))
+        {
+            var record = _alarmStore.GetLatestByDevice(deviceId);
+            return record is null ? NotFound() : Ok(record);
+        }
+
+        var latest = _alarmStore.GetLatest();
+        return latest is null ? NotFound() : Ok(latest);
+    }
+
+    /// <summary>
+    /// 获取所有摄像头状态
+    /// </summary>
+    [HttpGet("cameras")]
+    public ActionResult<IReadOnlyCollection<HikvisionCameraStatus>> GetCameraStatuses()
+    {
+        return Ok(_alarmStore.GetAllCameraStatuses());
+    }
+
+    /// <summary>
+    /// 获取单个摄像头状态
+    /// </summary>
+    [HttpGet("cameras/{deviceId}")]
+    public ActionResult<HikvisionCameraStatus> GetCameraStatus(string deviceId)
+    {
+        var status = _alarmStore.GetCameraStatus(deviceId);
+        return status is null ? NotFound() : Ok(status);
+    }
+
+    /// <summary>
+    /// 清空报警记录
+    /// </summary>
+    [HttpDelete("alarms")]
+    public IActionResult ClearAlarms()
+    {
+        _alarmStore.ClearAlarms();
+        _logger.LogInformation("Alarms cleared via API");
+        return Ok(new { message = "All alarms cleared" });
+    }
+}
diff --git a/Hikvision/CHCNetSDK.cs b/Hikvision/CHCNetSDK.cs
new file mode 100644
index 0000000..3f9f4dc
--- /dev/null
+++ b/Hikvision/CHCNetSDK.cs
@@ -0,0 +1,20433 @@
+using System;
+using System.Runtime.InteropServices;
+namespace YD_TrainingCompetition_Api.Hikvision
+{
+	/// <summary>
+	/// CHCNetSDK ��ժҪ˵����
+	/// </summary>
+    public class CHCNetSDK
+    {
+        public CHCNetSDK()
+        {
+            //
+            // TODO: �ڴ˴����ӹ��캯���߼�
+            //
+        }
+        
+        //SDK����
+        public const int SDK_PLAYMPEG4 = 1;//���ſ�
+        public const int SDK_HCNETSDK = 2;//�����
+
+        public const int NAME_LEN = 32;//�û�������
+        public const int PASSWD_LEN = 16;//���볤��
+        public const int GUID_LEN = 16;      //GUID����
+        public const int DEV_TYPE_NAME_LEN = 24;      //�豸�������Ƴ���
+        public const int MAX_NAMELEN = 16;//DVR���ص�½��
+        public const int MAX_RIGHT = 32;//�豸֧�ֵ�Ȩ�ޣ�1-12��ʾ����Ȩ�ޣ�13-32��ʾԶ��Ȩ�ޣ�
+        public const int SERIALNO_LEN = 48;//���кų���
+        public const int MACADDR_LEN = 6;//mac��ַ����
+        public const int MAX_ETHERNET = 2;//�豸������̫����
+        public const int MAX_NETWORK_CARD = 4; //�豸�������������Ŀ
+        public const int PATHNAME_LEN = 128;//·������
+
+        public const int MAX_NUMBER_LEN = 32;	//������󳤶�
+        public const int MAX_NAME_LEN = 128; //�豸������󳤶�
+
+
+        public const int MAX_TIMESEGMENT = 4;//8000�豸���ʱ�����
+        public const int MAX_ICR_NUM = 8;   //ץ�Ļ������˹�ƬԤ�õ���
+
+        public const int MAX_SHELTERNUM = 4;//8000�豸����ڵ�������
+        public const int PHONENUMBER_LEN = 32;//pppoe���ź�����󳤶�
+
+        public const int MAX_DISKNUM = 16;//8000�豸���Ӳ����
+        public const int MAX_DISKNUM_V10 = 8;//1.2�汾֮ǰ�汾
+
+        public const int MAX_WINDOW_V30 = 32;//9000�豸������ʾ��󲥷Ŵ�����
+        public const int MAX_WINDOW = 16;//8000�豸���Ӳ����
+        public const int MAX_VGA_V30 = 4;//9000�豸���ɽ�VGA��
+        public const int MAX_VGA = 1;//8000�豸���ɽ�VGA��
+
+        public const int MAX_USERNUM_V30 = 32;//9000�豸����û���
+        public const int MAX_USERNUM = 16;//8000�豸����û���
+        public const int MAX_EXCEPTIONNUM_V30 = 32;//9000�豸����쳣������
+        public const int MAX_EXCEPTIONNUM = 16;//8000�豸����쳣������
+        public const int MAX_LINK = 6;//8000�豸��ͨ�������Ƶ��������
+        public const int MAX_ITC_EXCEPTIONOUT = 32;//ץ�Ļ���󱨾����
+
+        public const int MAX_DECPOOLNUM = 4;//��·������ÿ������ͨ������ѭ��������
+        public const int MAX_DECNUM = 4;//��·��������������ͨ������ʵ��ֻ��һ������������������
+        public const int MAX_TRANSPARENTNUM = 2;//��·���������������͸��ͨ����
+        public const int MAX_CYCLE_CHAN = 16; //��·�����������ѭͨ����
+        public const int MAX_CYCLE_CHAN_V30 = 64;//�����ѯͨ��������չ��
+        public const int MAX_DIRNAME_LENGTH = 80;//���Ŀ¼����
+
+        public const int MAX_STRINGNUM_V30 = 8;//9000�豸���OSD�ַ�������
+        public const int MAX_STRINGNUM = 4;//8000�豸���OSD�ַ�������
+        public const int MAX_STRINGNUM_EX = 8;//8000������չ
+        public const int MAX_AUXOUT_V30 = 16;//9000�豸����������
+        public const int MAX_AUXOUT = 4;//8000�豸����������
+        public const int MAX_HD_GROUP = 16;//9000�豸���Ӳ������
+        public const int MAX_NFS_DISK = 8; //8000�豸���NFSӲ����
+
+        public const int IW_ESSID_MAX_SIZE = 32;//WIFI��SSID�ų���
+        public const int IW_ENCODING_TOKEN_MAX = 32;//WIFI��������ֽ���
+        public const int WIFI_WEP_MAX_KEY_COUNT = 4;
+        public const int WIFI_WEP_MAX_KEY_LENGTH = 33;
+        public const int WIFI_WPA_PSK_MAX_KEY_LENGTH = 63;
+        public const int WIFI_WPA_PSK_MIN_KEY_LENGTH = 8;
+        public const int WIFI_MAX_AP_COUNT = 20;
+        public const int MAX_SERIAL_NUM = 64;//���֧�ֵ�͸��ͨ��·��
+        public const int MAX_DDNS_NUMS = 10;//9000�豸������ddns��
+        public const int MAX_EMAIL_ADDR_LEN = 48;//���email��ַ����
+        public const int MAX_EMAIL_PWD_LEN = 32;//���email���볤��
+
+        public const int MAXPROGRESS = 100;//�ط�ʱ�����ٷ���
+        public const int MAX_SERIALNUM = 2;//8000�豸֧�ֵĴ����� 1-232�� 2-485
+        public const int CARDNUM_LEN = 20;//���ų���
+        public const int CARDNUM_LEN_OUT = 32; //�ⲿ�ṹ�忨�ų���
+        public const int MAX_VIDEOOUT_V30 = 4;//9000�豸����Ƶ�����
+        public const int MAX_VIDEOOUT = 2;//8000�豸����Ƶ�����
+
+        public const int MAX_PRESET_V30 = 256;// 9000�豸֧�ֵ���̨Ԥ�õ���
+        public const int MAX_TRACK_V30 = 256;// 9000�豸֧�ֵĻ���ɨ����
+        public const int MAX_CRUISE_V30 = 256;// 9000�豸֧�ֵ���̨Ѳ����
+        public const int MAX_PRESET = 128;// 8000�豸֧�ֵ���̨Ԥ�õ��� 
+        public const int MAX_TRACK = 128;// 8000�豸֧�ֵĻ���ɨ����
+        public const int MAX_CRUISE = 128;// 8000�豸֧�ֵ���̨Ѳ���� 
+
+        public const int CRUISE_MAX_PRESET_NUMS = 32;// һ��Ѳ������Ѳ���� 
+
+        public const int MAX_SERIAL_PORT = 8;//9000�豸֧��232������
+        public const int MAX_PREVIEW_MODE = 8;// �豸֧�����Ԥ��ģʽ��Ŀ 1����,4����,9����,16����.... 
+        public const int MAX_MATRIXOUT = 16;// ���ģ������������ 
+        public const int LOG_INFO_LEN = 11840; // ��־������Ϣ 
+        public const int DESC_LEN = 16;// ��̨�����ַ������� 
+        public const int PTZ_PROTOCOL_NUM = 200;// 9000���֧�ֵ���̨Э���� 
+
+        public const int MAX_AUDIO = 1;//8000�����Խ�ͨ����
+        public const int MAX_AUDIO_V30 = 2;//9000�����Խ�ͨ����
+        public const int MAX_CHANNUM = 16;//8000�豸���ͨ����
+        public const int MAX_ALARMIN = 16;//8000�豸��󱨾�������
+        public const int MAX_ALARMOUT = 4;//8000�豸��󱨾������
+        //9000 IPC����
+        public const int MAX_ANALOG_CHANNUM = 32;//���32��ģ��ͨ��
+        public const int MAX_ANALOG_ALARMOUT = 32; //���32·ģ�ⱨ����� 
+        public const int MAX_ANALOG_ALARMIN = 32;//���32·ģ�ⱨ������
+
+        public const int MAX_IP_DEVICE = 32;//������������IP�豸��
+        public const int MAX_IP_DEVICE_V40 = 64;//������������IP�豸��
+        public const int MAX_IP_CHANNEL = 32;//������������IPͨ����
+        public const int MAX_IP_ALARMIN = 128;//�����������౨��������
+        public const int MAX_IP_ALARMOUT = 64;//�����������౨�������
+        public const int MAX_IP_ALARMIN_V40 = 4096;    //�����������౨��������
+        public const int MAX_IP_ALARMOUT_V40 = 4096;    //�����������౨�������
+
+        public const int MAX_RECORD_FILE_NUM = 20;      // ÿ��ɾ�����߿�¼������ļ���
+
+        //SDK_V31 ATM
+        public const int MAX_ATM_NUM = 1;
+        public const int MAX_ACTION_TYPE = 12;
+        public const int ATM_FRAMETYPE_NUM = 4;
+        public const int MAX_ATM_PROTOCOL_NUM = 1025;
+        public const int ATM_PROTOCOL_SORT = 4;
+        public const int ATM_DESC_LEN = 32;
+        // SDK_V31 ATM
+
+        /* ���֧�ֵ�ͨ���� ���ģ��������IP֧�� */
+        public const int MAX_CHANNUM_V30 = MAX_ANALOG_CHANNUM + MAX_IP_CHANNEL;//64
+        public const int MAX_ALARMOUT_V30 = MAX_ANALOG_ALARMOUT + MAX_IP_ALARMOUT;//96
+        public const int MAX_ALARMIN_V30 = MAX_ANALOG_ALARMIN + MAX_IP_ALARMIN;//160
+
+        public const int MAX_CHANNUM_V40 = 512;
+        public const int MAX_ALARMOUT_V40 = MAX_IP_ALARMOUT_V40 + MAX_ANALOG_ALARMOUT;//4128
+        public const int MAX_ALARMIN_V40 = MAX_IP_ALARMIN_V40 + MAX_ANALOG_ALARMOUT;//4128
+        public const int MAX_MULTI_AREA_NUM = 24;
+
+        public const int MAX_HUMAN_PICTURE_NUM = 10;   //�����Ƭ��
+        public const int MAX_HUMAN_BIRTHDATE_LEN = 10;
+
+        public const int MAX_LAYERNUMS = 32;
+
+        public const int MAX_ROIDETECT_NUM = 8;    //֧�ֵ�ROI������
+        public const int MAX_LANERECT_NUM   =     5;    //�����ʶ��������
+        public const int MAX_FORTIFY_NUM   =      10;   //��󲼷�����
+        public const int MAX_INTERVAL_NUM  =      4;    //���ʱ��������
+        public const int MAX_CHJC_NUM     =       3;    //�����ʡ�ݼ���ַ�����
+        public const int MAX_VL_NUM        =      5;    //���������Ȧ����
+        public const int MAX_DRIVECHAN_NUM =      16;   //��󳵵���
+        public const int MAX_COIL_NUM      =      3;    //�����Ȧ����
+        public const int MAX_SIGNALLIGHT_NUM =    6;   //����źŵƸ���
+        public const int LEN_32				=	32;
+        public const int LEN_31				=	31; 
+        public const int MAX_CABINET_COUNT  =     8;    //���֧�ֻ�������
+        public const int MAX_ID_LEN         =     48;
+        public const int MAX_PARKNO_LEN    =      16;
+        public const int MAX_ALARMREASON_LEN =    32;
+        public const int MAX_UPGRADE_INFO_LEN=    48; //��ȡ�����ļ�ƥ����Ϣ(ģ������)
+        public const int MAX_CUSTOMDIR_LEN  =     32; //�Զ���Ŀ¼����
+
+        public const int MAX_TRANSPARENT_CHAN_NUM  =    4;   //ÿ�������������������͸��ͨ����
+        public const int MAX_TRANSPARENT_ACCESS_NUM =   4;   //ÿ�������˿�������������������
+
+        //ITS
+        public const int MAX_PARKING_STATUS  =     8;    //��λ״̬ 0�����޳���1�����г���2����ѹ��(���ȼ����), 3���⳵λ 
+        public const int MAX_PARKING_NUM	   =      4;    //һ��ͨ�����4����λ (�����ҳ�λ ����0��3)
+
+        public const int MAX_ITS_SCENE_NUM    =    16;   //��󳡾�����
+        public const int MAX_SCENE_TIMESEG_NUM =   16;   //��󳡾�ʱ�������
+        public const int MAX_IVMS_IP_CHANNEL  =    128;  //���IPͨ����
+        public const int DEVICE_ID_LEN      =      48;   //�豸��ų���
+        public const int MONITORSITE_ID_LEN  =     48;   //��ʾ���ų���
+        public const int MAX_AUXAREA_NUM       =   16;   //�������������Ŀ
+        public const int MAX_SLAVE_CHANNEL_NUM =   16;   //����ͨ������
+
+        public const int MAX_SCH_TASKS_NUM = 10;
+
+        public const int MAX_SERVERID_LEN   =         64; //��������ID�ij���
+        public const int MAX_SERVERDOMAIN_LEN =       128; //������������󳤶�
+        public const int MAX_AUTHENTICATEID_LEN =     64; //��֤ID��󳤶�
+        public const int MAX_AUTHENTICATEPASSWD_LEN = 32; //��֤������󳤶�
+        public const int MAX_SERVERNAME_LEN =         64; //���������û��� 
+        public const int MAX_COMPRESSIONID_LEN =      64; //����ID����󳤶�
+        public const int MAX_SIPSERVER_ADDRESS_LEN =  128; //SIP��������ַ֧��������IP��ַ
+        //ѹ�߱���
+        public const int MAX_PlATE_NO_LEN =        32;   //���ƺ�����󳤶� 2013-09-27
+        public const int UPNP_PORT_NUM	=		12;	  //upnp�˿�ӳ��˿���Ŀ
+
+        
+        public const int MAX_LOCAL_ADDR_LEN	= 96;		//SOCKS��󱾵����θ���
+        public const int MAX_COUNTRY_NAME_LEN = 4;		//���Ҽ�д���Ƴ���
+
+        public const int THERMOMETRY_ALARMRULE_NUM = 40; //�ȳ��񱨾�������
+
+        public const int ACS_CARD_NO_LEN = 32; //�Ž����ų���    
+        public const int MAX_ID_NUM_LEN = 32;  //�������֤�ų���
+        public const int MAX_ID_NAME_LEN = 128;   //�����������
+        public const int MAX_ID_ADDR_LEN = 280;   //���סַ����
+        public const int MAX_ID_ISSUING_AUTHORITY_LEN = 128; //���ǩ�����س���
+
+        public const int MAX_CARD_RIGHT_PLAN_NUM        = 4;   //��Ȩ�����ƻ�����
+        public const int MAX_GROUP_NUM_128              = 128; //���Ⱥ����
+        public const int MAX_CARD_READER_NUM            = 64;  //����������
+        public const int MAX_SNEAK_PATH_NODE            = 8;   //��������������
+        public const int MAX_MULTI_DOOR_INTERLOCK_GROUP = 8;   //�����Ż�������
+        public const int MAX_INTER_LOCK_DOOR_NUM        = 8;   //һ�����Ż����������������
+        public const int MAX_CASE_SENSOR_NUM            = 8;  //���case sensor��������
+        public const int MAX_DOOR_NUM_256               = 256; //�������
+        public const int MAX_READER_ROUTE_NUM           = 16;  //���ˢ��ѭ��·�� 
+        public const int MAX_FINGER_PRINT_NUM           = 10;  //���ָ�Ƹ���
+        public const int MAX_CARD_READER_NUM_512        = 512; //����������
+        public const int NET_SDK_MULTI_CARD_GROUP_NUM_20 = 20;   //���������ؿ�����
+        public const int CARD_PASSWORD_LEN              = 8;   //�����볤��
+        public const int MAX_DOOR_CODE_LEN              = 8; //������볤��
+        public const int MAX_LOCK_CODE_LEN              = 8; //�����볤��
+
+        public const int MAX_NOTICE_NUMBER_LEN     = 32;   //��������󳤶�
+        public const int MAX_NOTICE_THEME_LEN      = 64;   //����������󳤶�
+        public const int MAX_NOTICE_DETAIL_LEN     = 1024; //����������󳤶�
+        public const int MAX_NOTICE_PIC_NUM        = 6;    //������Ϣ���ͼƬ����
+        public const int MAX_DEV_NUMBER_LEN        = 32;   //�豸�����󳤶�
+        public const int LOCK_NAME_LEN = 32;  //������
+
+        public const int GROUP_NAME_LEN          = 32;  //Ⱥ�����Ƴ���
+        public const int GROUP_COMBINATION_NUM   = 8;   //Ⱥ�������
+        public const int MULTI_CARD_GROUP_NUM = 4;   //���������ؿ�����
+
+        public const int NET_SDK_EMPLOYEE_NO_LEN = 32;  //���ų���
+        public const int NET_SDK_UUID_LEN        = 36;  //UUID����
+        public const int NET_SDK_EHOME_KEY_LEN = 32;  //EHome Key����
+
+        public const int NET_DEV_NAME_LEN       = 64;  //�豸���Ƴ���
+        public const int NET_DEV_TYPE_NAME_LEN  = 64; //�豸�������Ƴ���
+
+        public const int VCA_MAX_POLYGON_POINT_NUM = 10;//����������֧��10����Ķ����
+        public const int MAX_RULE_NUM = 8;//����������
+        public const int MAX_TARGET_NUM = 30;//���Ŀ�����
+        public const int MAX_CALIB_PT = 6;//���궨�����
+        public const int MIN_CALIB_PT = 4;//��С�궨�����
+        public const int MAX_TIMESEGMENT_2 = 2;//���ʱ�����
+        public const int MAX_LICENSE_LEN = 16;//���ƺ���󳤶�
+        public const int MAX_PLATE_NUM = 3;//���Ƹ���
+        public const int MAX_MASK_REGION_NUM = 4;//����ĸ���������
+        public const int MAX_SEGMENT_NUM = 6;//������궨�����������Ŀ
+        public const int MIN_SEGMENT_NUM = 3;//������궨��С��������Ŀ  
+        public const int MAX_CATEGORY_LEN = 8;       //���Ƹ�����Ϣ����ַ�
+        public const int SERIAL_NO_LEN = 16;      //������
+        public const int ILLEGAL_LEN = 32;      //Υ�����볤��
+
+        //�������ӷ�ʽ
+        public const int NORMALCONNECT = 1;
+        public const int MEDIACONNECT = 2;
+
+        //�豸�ͺ�(����)
+        public const int HCDVR = 1;
+        public const int MEDVR = 2;
+        public const int PCDVR = 3;
+        public const int HC_9000 = 4;
+        public const int HF_I = 5;
+        public const int PCNVR = 6;
+        public const int HC_76NVR = 8;
+
+        //NVR����
+        public const int DS8000HC_NVR = 0;
+        public const int DS9000HC_NVR = 1;
+        public const int DS8000ME_NVR = 2;
+
+        /*******************ȫ�ִ����� begin**********************/
+        public const int NET_DVR_NOERROR = 0;//û�д���
+        public const int NET_DVR_PASSWORD_ERROR = 1;//�û����������
+        public const int NET_DVR_NOENOUGHPRI = 2;//Ȩ�޲���
+        public const int NET_DVR_NOINIT = 3;//û�г�ʼ��
+        public const int NET_DVR_CHANNEL_ERROR = 4;//ͨ���Ŵ���
+        public const int NET_DVR_OVER_MAXLINK = 5;//���ӵ�DVR�Ŀͻ��˸����������
+        public const int NET_DVR_VERSIONNOMATCH = 6;//�汾��ƥ��
+        public const int NET_DVR_NETWORK_FAIL_CONNECT = 7;//���ӷ�����ʧ��
+        public const int NET_DVR_NETWORK_SEND_ERROR = 8;//�����������ʧ��
+        public const int NET_DVR_NETWORK_RECV_ERROR = 9;//�ӷ�������������ʧ��
+        public const int NET_DVR_NETWORK_RECV_TIMEOUT = 10;//�ӷ������������ݳ�ʱ
+        public const int NET_DVR_NETWORK_ERRORDATA = 11;//���͵���������
+        public const int NET_DVR_ORDER_ERROR = 12;//�������
+        public const int NET_DVR_OPERNOPERMIT = 13;//�޴�Ȩ��
+        public const int NET_DVR_COMMANDTIMEOUT = 14;//DVR����ִ�г�ʱ
+        public const int NET_DVR_ERRORSERIALPORT = 15;//���ںŴ���
+        public const int NET_DVR_ERRORALARMPORT = 16;//�����˿ڴ���
+        public const int NET_DVR_PARAMETER_ERROR = 17;//��������
+        public const int NET_DVR_CHAN_EXCEPTION = 18;//������ͨ�����ڴ���״̬
+        public const int NET_DVR_NODISK = 19;//û��Ӳ��
+        public const int NET_DVR_ERRORDISKNUM = 20;//Ӳ�̺Ŵ���
+        public const int NET_DVR_DISK_FULL = 21;//������Ӳ����
+        public const int NET_DVR_DISK_ERROR = 22;//������Ӳ�̳���
+        public const int NET_DVR_NOSUPPORT = 23;//��������֧��
+        public const int NET_DVR_BUSY = 24;//������æ
+        public const int NET_DVR_MODIFY_FAIL = 25;//�������޸IJ��ɹ�
+        public const int NET_DVR_PASSWORD_FORMAT_ERROR = 26;//���������ʽ����ȷ
+        public const int NET_DVR_DISK_FORMATING = 27;//Ӳ�����ڸ�ʽ����������������
+        public const int NET_DVR_DVRNORESOURCE = 28;//DVR��Դ����
+        public const int NET_DVR_DVROPRATEFAILED = 29;//DVR����ʧ��
+        public const int NET_DVR_OPENHOSTSOUND_FAIL = 30;//��PC����ʧ��
+        public const int NET_DVR_DVRVOICEOPENED = 31;//�����������Խ���ռ��
+        public const int NET_DVR_TIMEINPUTERROR = 32;//ʱ�����벻��ȷ
+        public const int NET_DVR_NOSPECFILE = 33;//�ط�ʱ������û��ָ�����ļ�
+        public const int NET_DVR_CREATEFILE_ERROR = 34;//�����ļ�����
+        public const int NET_DVR_FILEOPENFAIL = 35;//���ļ�����
+        public const int NET_DVR_OPERNOTFINISH = 36; //�ϴεIJ�����û�����
+        public const int NET_DVR_GETPLAYTIMEFAIL = 37;//��ȡ��ǰ���ŵ�ʱ�����
+        public const int NET_DVR_PLAYFAIL = 38;//���ų���
+        public const int NET_DVR_FILEFORMAT_ERROR = 39;//�ļ���ʽ����ȷ
+        public const int NET_DVR_DIR_ERROR = 40;//·������
+        public const int NET_DVR_ALLOC_RESOURCE_ERROR = 41;//��Դ�������
+        public const int NET_DVR_AUDIO_MODE_ERROR = 42;//����ģʽ����
+        public const int NET_DVR_NOENOUGH_BUF = 43;//������̫С
+        public const int NET_DVR_CREATESOCKET_ERROR = 44;//����SOCKET����
+        public const int NET_DVR_SETSOCKET_ERROR = 45;//����SOCKET����
+        public const int NET_DVR_MAX_NUM = 46;//�����ﵽ���
+        public const int NET_DVR_USERNOTEXIST = 47;//�û�������
+        public const int NET_DVR_WRITEFLASHERROR = 48;//дFLASH����
+        public const int NET_DVR_UPGRADEFAIL = 49;//DVR����ʧ��
+        public const int NET_DVR_CARDHAVEINIT = 50;//���뿨�Ѿ���ʼ����
+        public const int NET_DVR_PLAYERFAILED = 51;//���ò��ſ���ij������ʧ��
+        public const int NET_DVR_MAX_USERNUM = 52;//�豸���û����ﵽ���
+        public const int NET_DVR_GETLOCALIPANDMACFAIL = 53;//��ÿͻ��˵�IP��ַ��������ַʧ��
+        public const int NET_DVR_NOENCODEING = 54;//��ͨ��û�б���
+        public const int NET_DVR_IPMISMATCH = 55;//IP��ַ��ƥ��
+        public const int NET_DVR_MACMISMATCH = 56;//MAC��ַ��ƥ��
+        public const int NET_DVR_UPGRADELANGMISMATCH = 57;//�����ļ����Բ�ƥ��
+        public const int NET_DVR_MAX_PLAYERPORT = 58;//������·���ﵽ���
+        public const int NET_DVR_NOSPACEBACKUP = 59;//�����豸��û���㹻�ռ���б���
+        public const int NET_DVR_NODEVICEBACKUP = 60;//û���ҵ�ָ���ı����豸
+        public const int NET_DVR_PICTURE_BITS_ERROR = 61;//ͼ����λ����������24ɫ
+        public const int NET_DVR_PICTURE_DIMENSION_ERROR = 62;//ͼƬ��*�����ޣ� ��128*256
+        public const int NET_DVR_PICTURE_SIZ_ERROR = 63;//ͼƬ��С���ޣ���100K
+        public const int NET_DVR_LOADPLAYERSDKFAILED = 64;//���뵱ǰĿ¼��Player Sdk����
+        public const int NET_DVR_LOADPLAYERSDKPROC_ERROR = 65;//�Ҳ���Player Sdk��ij���������
+        public const int NET_DVR_LOADDSSDKFAILED = 66;//���뵱ǰĿ¼��DSsdk����
+        public const int NET_DVR_LOADDSSDKPROC_ERROR = 67;//�Ҳ���DsSdk��ij���������
+        public const int NET_DVR_DSSDK_ERROR = 68;//����Ӳ�����DsSdk��ij������ʧ��
+        public const int NET_DVR_VOICEMONOPOLIZE = 69;//��������ռ
+        public const int NET_DVR_JOINMULTICASTFAILED = 70;//����ಥ��ʧ��
+        public const int NET_DVR_CREATEDIR_ERROR = 71;//������־�ļ�Ŀ¼ʧ��
+        public const int NET_DVR_BINDSOCKET_ERROR = 72;//���׽���ʧ��
+        public const int NET_DVR_SOCKETCLOSE_ERROR = 73;//socket�����жϣ��˴���ͨ�������������жϻ�Ŀ�ĵز��ɴ�
+        public const int NET_DVR_USERID_ISUSING = 74;//ע��ʱ�û�ID���ڽ���ij����
+        public const int NET_DVR_SOCKETLISTEN_ERROR = 75;//����ʧ��
+        public const int NET_DVR_PROGRAM_EXCEPTION = 76;//�����쳣
+        public const int NET_DVR_WRITEFILE_FAILED = 77;//д�ļ�ʧ��
+        public const int NET_DVR_FORMAT_READONLY = 78;//��ֹ��ʽ��ֻ��Ӳ��
+        public const int NET_DVR_WITHSAMEUSERNAME = 79;//�û����ýṹ�д�����ͬ���û���
+        public const int NET_DVR_DEVICETYPE_ERROR = 80;//�������ʱ�豸�ͺŲ�ƥ��
+        public const int NET_DVR_LANGUAGE_ERROR = 81;//�������ʱ���Բ�ƥ��
+        public const int NET_DVR_PARAVERSION_ERROR = 82;//�������ʱ�����汾��ƥ��
+        public const int NET_DVR_IPCHAN_NOTALIVE = 83; //Ԥ��ʱ���IPͨ��������
+        public const int NET_DVR_RTSP_SDK_ERROR = 84;//���ظ���IPCͨѶ��StreamTransClient.dllʧ��
+        public const int NET_DVR_CONVERT_SDK_ERROR = 85;//����ת���ʧ��
+        public const int NET_DVR_IPC_COUNT_OVERFLOW = 86;//��������ip����ͨ����
+        public const int NET_DVR_USER_LOCKED = 153;
+
+        public const int NET_PLAYM4_NOERROR = 500;//no error
+        public const int NET_PLAYM4_PARA_OVER = 501;//input parameter is invalid
+        public const int NET_PLAYM4_ORDER_ERROR = 502;//The order of the function to be called is error
+        public const int NET_PLAYM4_TIMER_ERROR = 503;//Create multimedia clock failed
+        public const int NET_PLAYM4_DEC_VIDEO_ERROR = 504;//Decode video data failed
+        public const int NET_PLAYM4_DEC_AUDIO_ERROR = 505;//Decode audio data failed
+        public const int NET_PLAYM4_ALLOC_MEMORY_ERROR = 506;//Allocate memory failed
+        public const int NET_PLAYM4_OPEN_FILE_ERROR = 507;//Open the file failed
+        public const int NET_PLAYM4_CREATE_OBJ_ERROR = 508;//Create thread or event failed
+        public const int NET_PLAYM4_CREATE_DDRAW_ERROR = 509;//Create DirectDraw object failed
+        public const int NET_PLAYM4_CREATE_OFFSCREEN_ERROR = 510;//failed when creating off-screen surface
+        public const int NET_PLAYM4_BUF_OVER = 511;//buffer is overflow
+        public const int NET_PLAYM4_CREATE_SOUND_ERROR = 512;//failed when creating audio device
+        public const int NET_PLAYM4_SET_VOLUME_ERROR = 513;//Set volume failed
+        public const int NET_PLAYM4_SUPPORT_FILE_ONLY = 514;//The function only support play file
+        public const int NET_PLAYM4_SUPPORT_STREAM_ONLY = 515;//The function only support play stream
+        public const int NET_PLAYM4_SYS_NOT_SUPPORT = 516;//System not support
+        public const int NET_PLAYM4_FILEHEADER_UNKNOWN = 517;//No file header
+        public const int NET_PLAYM4_VERSION_INCORRECT = 518;//The version of decoder and encoder is not adapted
+        public const int NET_PALYM4_INIT_DECODER_ERROR = 519;//Initialize decoder failed
+        public const int NET_PLAYM4_CHECK_FILE_ERROR = 520;//The file data is unknown
+        public const int NET_PLAYM4_INIT_TIMER_ERROR = 521;//Initialize multimedia clock failed
+        public const int NET_PLAYM4_BLT_ERROR = 522;//Blt failed
+        public const int NET_PLAYM4_UPDATE_ERROR = 523;//Update failed
+        public const int NET_PLAYM4_OPEN_FILE_ERROR_MULTI = 524;//openfile error, streamtype is multi
+        public const int NET_PLAYM4_OPEN_FILE_ERROR_VIDEO = 525;//openfile error, streamtype is video
+        public const int NET_PLAYM4_JPEG_COMPRESS_ERROR = 526;//JPEG compress error
+        public const int NET_PLAYM4_EXTRACT_NOT_SUPPORT = 527;//Don't support the version of this file
+        public const int NET_PLAYM4_EXTRACT_DATA_ERROR = 528;//extract video data failed
+        /*******************ȫ�ִ����� end**********************/
+
+        /*************************************************
+        NET_DVR_IsSupport()����ֵ
+        1��9λ�ֱ��ʾ������Ϣ��λ����TRUE)��ʾ֧�֣�
+        **************************************************/
+        public const int NET_DVR_SUPPORT_DDRAW = 1;//֧��DIRECTDRAW�������֧�֣��򲥷������ܹ���
+        public const int NET_DVR_SUPPORT_BLT = 2;//�Կ�֧��BLT�����������֧�֣��򲥷������ܹ���
+        public const int NET_DVR_SUPPORT_BLTFOURCC = 4;//�Կ�BLT֧����ɫת���������֧�֣���������������������RGBת��
+        public const int NET_DVR_SUPPORT_BLTSHRINKX = 8;//�Կ�BLT֧��X����С�������֧�֣�ϵͳ������������ת��
+        public const int NET_DVR_SUPPORT_BLTSHRINKY = 16;//�Կ�BLT֧��Y����С�������֧�֣�ϵͳ������������ת��
+        public const int NET_DVR_SUPPORT_BLTSTRETCHX = 32;//�Կ�BLT֧��X��Ŵ������֧�֣�ϵͳ������������ת��
+        public const int NET_DVR_SUPPORT_BLTSTRETCHY = 64;//�Կ�BLT֧��Y��Ŵ������֧�֣�ϵͳ������������ת��
+        public const int NET_DVR_SUPPORT_SSE = 128;//CPU֧��SSEָ�Intel Pentium3����֧��SSEָ��
+        public const int NET_DVR_SUPPORT_MMX = 256;//CPU֧��MMXָ���Intel Pentium3����֧��SSEָ��
+
+        /**********************��̨�������� begin*************************/
+        public const int LIGHT_PWRON = 2;// ��ͨ�ƹ��Դ
+        public const int WIPER_PWRON = 3;// ��ͨ��ˢ���� 
+        public const int FAN_PWRON = 4;// ��ͨ���ȿ���
+        public const int HEATER_PWRON = 5;// ��ͨ����������
+        public const int AUX_PWRON1 = 6;// ��ͨ�����豸����
+        public const int AUX_PWRON2 = 7;// ��ͨ�����豸���� 
+        public const int SET_PRESET = 8;// ����Ԥ�õ� 
+        public const int CLE_PRESET = 9;// ���Ԥ�õ� 
+
+        public const int ZOOM_IN = 11;// �������ٶ�SS���(���ʱ��)
+        public const int ZOOM_OUT = 12;// �������ٶ�SS��С(���ʱ�С)
+        public const int FOCUS_NEAR = 13;// �������ٶ�SSǰ�� 
+        public const int FOCUS_FAR = 14;// �������ٶ�SS���
+        public const int IRIS_OPEN = 15;// ��Ȧ���ٶ�SS����
+        public const int IRIS_CLOSE = 16;// ��Ȧ���ٶ�SS��С 
+
+        public const int TILT_UP = 21;/* ��̨��SS���ٶ����� */
+        public const int TILT_DOWN = 22;/* ��̨��SS���ٶ��¸� */
+        public const int PAN_LEFT = 23;/* ��̨��SS���ٶ���ת */
+        public const int PAN_RIGHT = 24;/* ��̨��SS���ٶ���ת */
+        public const int UP_LEFT = 25;/* ��̨��SS���ٶ���������ת */
+        public const int UP_RIGHT = 26;/* ��̨��SS���ٶ���������ת */
+        public const int DOWN_LEFT = 27;/* ��̨��SS���ٶ��¸�����ת */
+        public const int DOWN_RIGHT = 28;/* ��̨��SS���ٶ��¸�����ת */
+        public const int PAN_AUTO = 29;/* ��̨��SS���ٶ������Զ�ɨ�� */
+
+        public const int FILL_PRE_SEQ = 30;/* ��Ԥ�õ����Ѳ������ */
+        public const int SET_SEQ_DWELL = 31;/* ����Ѳ����ͣ��ʱ�� */
+        public const int SET_SEQ_SPEED = 32;/* ����Ѳ���ٶ� */
+        public const int CLE_PRE_SEQ = 33;/* ��Ԥ�õ��Ѳ��������ɾ�� */
+        public const int STA_MEM_CRUISE = 34;/* ��ʼ��¼ */
+        public const int STO_MEM_CRUISE = 35;/* ֹͣ��¼ */
+        public const int RUN_CRUISE = 36;/* ��ʼ */
+        public const int RUN_SEQ = 37;/* ��ʼѲ�� */
+        public const int STOP_SEQ = 38;/* ֹͣѲ�� */
+        public const int GOTO_PRESET = 39;/* ����ת��Ԥ�õ� */
+        /**********************��̨�������� end*************************/
+
+        /*************************************************
+        �ط�ʱ���ſ�������궨�� 
+        NET_DVR_PlayBackControl
+        NET_DVR_PlayControlLocDisplay
+        NET_DVR_DecPlayBackCtrl�ĺ궨��
+        ����֧�ֲ鿴����˵���ʹ���
+        **************************************************/
+        public const int NET_DVR_PLAYSTART = 1;//��ʼ����
+        public const int NET_DVR_PLAYSTOP = 2;//ֹͣ����
+        public const int NET_DVR_PLAYPAUSE = 3;//��ͣ����
+        public const int NET_DVR_PLAYRESTART = 4;//�ָ�����
+        public const int NET_DVR_PLAYFAST = 5;//���
+        public const int NET_DVR_PLAYSLOW = 6;//����
+        public const int NET_DVR_PLAYNORMAL = 7;//�����ٶ�
+        public const int NET_DVR_PLAYFRAME = 8;//��֡��
+        public const int NET_DVR_PLAYSTARTAUDIO = 9;//������
+        public const int NET_DVR_PLAYSTOPAUDIO = 10;//�ر�����
+        public const int NET_DVR_PLAYAUDIOVOLUME = 11;//��������
+        public const int NET_DVR_PLAYSETPOS = 12;//�ı��ļ��طŵĽ���
+        public const int NET_DVR_PLAYGETPOS = 13;//��ȡ�ļ��طŵĽ���
+        public const int NET_DVR_PLAYGETTIME = 14;//��ȡ��ǰ�Ѿ����ŵ�ʱ��(���ļ��طŵ�ʱ����Ч)
+        public const int NET_DVR_PLAYGETFRAME = 15;//��ȡ��ǰ�Ѿ����ŵ�֡��(���ļ��طŵ�ʱ����Ч)
+        public const int NET_DVR_GETTOTALFRAMES = 16;//��ȡ��ǰ�����ļ��ܵ�֡��(���ļ��طŵ�ʱ����Ч)
+        public const int NET_DVR_GETTOTALTIME = 17;//��ȡ��ǰ�����ļ��ܵ�ʱ��(���ļ��طŵ�ʱ����Ч)
+        public const int NET_DVR_THROWBFRAME = 20;//��B֡
+        public const int NET_DVR_SETSPEED = 24;//���������ٶ�
+        public const int NET_DVR_KEEPALIVE = 25;//�������豸������(����ص�����������2�뷢��һ��)
+        public const int NET_DVR_PLAYSETTIME = 26;//������ʱ�䶨λ
+        public const int NET_DVR_PLAYGETTOTALLEN = 27;//��ȡ��ʱ��طŶ�Ӧʱ����ڵ������ļ����ܳ���
+        public const int NET_DVR_PLAY_FORWARD = 29;//�����л�Ϊ����
+        public const int NET_DVR_PLAY_REVERSE = 30;//�����л�Ϊ����
+        public const int NET_DVR_SET_TRANS_TYPE = 32;//����ת��װ����
+        public const int NET_DVR_PLAY_CONVERT = 33;//�����л�Ϊ����
+
+        //Զ�̰����������£�
+        /* key value send to CONFIG program */
+        public const int KEY_CODE_1 = 1;
+        public const int KEY_CODE_2 = 2;
+        public const int KEY_CODE_3 = 3;
+        public const int KEY_CODE_4 = 4;
+        public const int KEY_CODE_5 = 5;
+        public const int KEY_CODE_6 = 6;
+        public const int KEY_CODE_7 = 7;
+        public const int KEY_CODE_8 = 8;
+        public const int KEY_CODE_9 = 9;
+        public const int KEY_CODE_0 = 10;
+        public const int KEY_CODE_POWER = 11;
+        public const int KEY_CODE_MENU = 12;
+        public const int KEY_CODE_ENTER = 13;
+        public const int KEY_CODE_CANCEL = 14;
+        public const int KEY_CODE_UP = 15;
+        public const int KEY_CODE_DOWN = 16;
+        public const int KEY_CODE_LEFT = 17;
+        public const int KEY_CODE_RIGHT = 18;
+        public const int KEY_CODE_EDIT = 19;
+        public const int KEY_CODE_ADD = 20;
+        public const int KEY_CODE_MINUS = 21;
+        public const int KEY_CODE_PLAY = 22;
+        public const int KEY_CODE_REC = 23;
+        public const int KEY_CODE_PAN = 24;
+        public const int KEY_CODE_M = 25;
+        public const int KEY_CODE_A = 26;
+        public const int KEY_CODE_F1 = 27;
+        public const int KEY_CODE_F2 = 28;
+
+        /* for PTZ control */
+        public const int KEY_PTZ_UP_START = KEY_CODE_UP;
+        public const int KEY_PTZ_UP_STOP = 32;
+
+        public const int KEY_PTZ_DOWN_START = KEY_CODE_DOWN;
+        public const int KEY_PTZ_DOWN_STOP = 33;
+
+
+        public const int KEY_PTZ_LEFT_START = KEY_CODE_LEFT;
+        public const int KEY_PTZ_LEFT_STOP = 34;
+
+        public const int KEY_PTZ_RIGHT_START = KEY_CODE_RIGHT;
+        public const int KEY_PTZ_RIGHT_STOP = 35;
+
+        public const int KEY_PTZ_AP1_START = KEY_CODE_EDIT;/* ��Ȧ+ */
+        public const int KEY_PTZ_AP1_STOP = 36;
+
+        public const int KEY_PTZ_AP2_START = KEY_CODE_PAN;/* ��Ȧ- */
+        public const int KEY_PTZ_AP2_STOP = 37;
+
+        public const int KEY_PTZ_FOCUS1_START = KEY_CODE_A;/* �۽�+ */
+        public const int KEY_PTZ_FOCUS1_STOP = 38;
+
+        public const int KEY_PTZ_FOCUS2_START = KEY_CODE_M;/* �۽�- */
+        public const int KEY_PTZ_FOCUS2_STOP = 39;
+
+        public const int KEY_PTZ_B1_START = 40;/* �䱶+ */
+        public const int KEY_PTZ_B1_STOP = 41;
+
+        public const int KEY_PTZ_B2_START = 42;/* �䱶- */
+        public const int KEY_PTZ_B2_STOP = 43;
+
+        //9000����
+        public const int KEY_CODE_11 = 44;
+        public const int KEY_CODE_12 = 45;
+        public const int KEY_CODE_13 = 46;
+        public const int KEY_CODE_14 = 47;
+        public const int KEY_CODE_15 = 48;
+        public const int KEY_CODE_16 = 49;
+
+        /*************************������������ begin*******************************/
+        //����NET_DVR_SetDVRConfig��NET_DVR_GetDVRConfig,ע�����Ӧ�����ýṹ
+        public const int NET_DVR_GET_DEVICECFG = 100;//��ȡ�豸����
+        public const int NET_DVR_SET_DEVICECFG = 101;//�����豸����
+        public const int NET_DVR_GET_NETCFG = 102;//��ȡ�������
+        public const int NET_DVR_SET_NETCFG = 103;//�����������
+        public const int NET_DVR_GET_PICCFG = 104;//��ȡͼ�����
+        public const int NET_DVR_SET_PICCFG = 105;//����ͼ�����
+        public const int NET_DVR_GET_COMPRESSCFG = 106;//��ȡѹ������
+        public const int NET_DVR_SET_COMPRESSCFG = 107;//����ѹ������
+        public const int NET_DVR_GET_RECORDCFG = 108;//��ȡ¼��ʱ�����
+        public const int NET_DVR_SET_RECORDCFG = 109;//����¼��ʱ�����
+        public const int NET_DVR_GET_DECODERCFG = 110;//��ȡ����������
+        public const int NET_DVR_SET_DECODERCFG = 111;//���ý���������
+        public const int NET_DVR_GET_RS232CFG = 112;//��ȡ232���ڲ���
+        public const int NET_DVR_SET_RS232CFG = 113;//����232���ڲ���
+        public const int NET_DVR_GET_ALARMINCFG = 114;//��ȡ�����������
+        public const int NET_DVR_SET_ALARMINCFG = 115;//�����������
+        public const int NET_DVR_GET_ALARMOUTCFG = 116;//��ȡ�����������
+        public const int NET_DVR_SET_ALARMOUTCFG = 117;//�����������
+        public const int NET_DVR_GET_TIMECFG = 118;//��ȡDVRʱ��
+        public const int NET_DVR_SET_TIMECFG = 119;//����DVRʱ��
+        public const int NET_DVR_GET_PREVIEWCFG = 120;//��ȡԤ������
+        public const int NET_DVR_SET_PREVIEWCFG = 121;//����Ԥ������
+        public const int NET_DVR_GET_VIDEOOUTCFG = 122;//��ȡ��Ƶ�������
+        public const int NET_DVR_SET_VIDEOOUTCFG = 123;//������Ƶ�������
+        public const int NET_DVR_GET_USERCFG = 124;//��ȡ�û�����
+        public const int NET_DVR_SET_USERCFG = 125;//�����û�����
+        public const int NET_DVR_GET_EXCEPTIONCFG = 126;//��ȡ�쳣����
+        public const int NET_DVR_SET_EXCEPTIONCFG = 127;//�����쳣����
+        public const int NET_DVR_GET_ZONEANDDST = 128;//��ȡʱ������ʱ�Ʋ���
+        public const int NET_DVR_SET_ZONEANDDST = 129;//����ʱ������ʱ�Ʋ���
+        public const int NET_DVR_GET_SHOWSTRING = 130;//��ȡ�����ַ�����
+        public const int NET_DVR_SET_SHOWSTRING = 131;//���õ����ַ�����
+        public const int NET_DVR_GET_EVENTCOMPCFG = 132;//��ȡ�¼�����¼�����
+        public const int NET_DVR_SET_EVENTCOMPCFG = 133;//�����¼�����¼�����
+
+        public const int NET_DVR_GET_AUXOUTCFG = 140;//��ȡ�������������������(HS�豸�������2006-02-28)
+        public const int NET_DVR_SET_AUXOUTCFG = 141;//���ñ������������������(HS�豸�������2006-02-28)
+        public const int NET_DVR_GET_PREVIEWCFG_AUX = 142;//��ȡ-sϵ��˫���Ԥ������(-sϵ��˫���2006-04-13)
+        public const int NET_DVR_SET_PREVIEWCFG_AUX = 143;//����-sϵ��˫���Ԥ������(-sϵ��˫���2006-04-13)
+
+        public const int NET_DVR_GET_PICCFG_EX = 200;//��ȡͼ�����(SDK_V14��չ����)
+        public const int NET_DVR_SET_PICCFG_EX = 201;//����ͼ�����(SDK_V14��չ����)
+        public const int NET_DVR_GET_USERCFG_EX = 202;//��ȡ�û�����(SDK_V15��չ����)
+        public const int NET_DVR_SET_USERCFG_EX = 203;//�����û�����(SDK_V15��չ����)
+        public const int NET_DVR_GET_COMPRESSCFG_EX = 204;//��ȡѹ������(SDK_V15��չ����2006-05-15)
+        public const int NET_DVR_SET_COMPRESSCFG_EX = 205;//����ѹ������(SDK_V15��չ����2006-05-15)
+
+        public const int NET_DVR_GET_NETAPPCFG = 222;//��ȡ����Ӧ�ò��� NTP/DDNS/EMAIL
+        public const int NET_DVR_SET_NETAPPCFG = 223;//��������Ӧ�ò��� NTP/DDNS/EMAIL
+        public const int NET_DVR_GET_NTPCFG = 224;//��ȡ����Ӧ�ò��� NTP
+        public const int NET_DVR_SET_NTPCFG = 225;//��������Ӧ�ò��� NTP
+        public const int NET_DVR_GET_DDNSCFG = 226;//��ȡ����Ӧ�ò��� DDNS
+        public const int NET_DVR_SET_DDNSCFG = 227;//��������Ӧ�ò��� DDNS
+        //��ӦNET_DVR_EMAILPARA
+        public const int NET_DVR_GET_EMAILCFG = 228;//��ȡ����Ӧ�ò��� EMAIL
+        public const int NET_DVR_SET_EMAILCFG = 229;//��������Ӧ�ò��� EMAIL
+
+        public const int NET_DVR_GET_NFSCFG = 230;/* NFS disk config */
+        public const int NET_DVR_SET_NFSCFG = 231;/* NFS disk config */
+
+        public const int NET_DVR_GET_SHOWSTRING_EX = 238;//��ȡ�����ַ�������չ(֧��8���ַ�)
+        public const int NET_DVR_SET_SHOWSTRING_EX = 239;//���õ����ַ�������չ(֧��8���ַ�)
+        public const int NET_DVR_GET_NETCFG_OTHER = 244;//��ȡ�������
+        public const int NET_DVR_SET_NETCFG_OTHER = 245;//�����������
+
+        //��ӦNET_DVR_EMAILCFG�ṹ
+        public const int NET_DVR_GET_EMAILPARACFG = 250;//Get EMAIL parameters
+        public const int NET_DVR_SET_EMAILPARACFG = 251;//Setup EMAIL parameters
+
+        public const int NET_DVR_GET_DDNSCFG_EX = 274;//��ȡ��չDDNS����
+        public const int NET_DVR_SET_DDNSCFG_EX = 275;//������չDDNS����
+
+        public const int NET_DVR_SET_PTZPOS = 292;//��̨����PTZλ��
+        public const int NET_DVR_GET_PTZPOS = 293;//��̨��ȡPTZλ��
+        public const int NET_DVR_GET_PTZSCOPE = 294;//��̨��ȡPTZ��Χ
+
+        public const int NET_DVR_GET_AP_INFO_LIST = 305;//��ȡ����������Դ����
+        public const int NET_DVR_SET_WIFI_CFG = 306;//����IP�����豸���߲���
+        public const int NET_DVR_GET_WIFI_CFG = 307;//��ȡIP�����豸���߲���
+        public const int NET_DVR_SET_WIFI_WORKMODE = 308;//����IP�����豸���ڹ���ģʽ����
+        public const int NET_DVR_GET_WIFI_WORKMODE = 309;//��ȡIP�����豸���ڹ���ģʽ���� 
+        public const int NET_DVR_GET_WIFI_STATUS = 310;	//��ȡ�豸��ǰwifi����״̬
+
+        /***************************���ܷ����� begin *****************************/
+        //�����豸����
+        public const int DS6001_HF_B = 60;//�쳣��Ϊʶ��DS6001-HF/B
+        public const int DS6001_HF_P = 61;//����ʶ��DS6001-HF/P
+        public const int DS6002_HF_B = 62;//˫����DS6002-HF/B
+        public const int DS6101_HF_B = 63;//�쳣��Ϊʶ��DS6101-HF/B
+        public const int IDS52XX = 64;//���ܷ�����IVMS
+        public const int DS9000_IVS = 65;//9000ϵ������DVR
+        public const int DS8004_AHL_A = 66;//����ATM, DS8004AHL-S/A
+        public const int DS6101_HF_P = 67;//����ʶ��DS6101-HF/P
+
+        //������ȡ����
+        public const int VCA_DEV_ABILITY = 256;//�豸���ܷ�����������
+        public const int VCA_CHAN_ABILITY = 272;//�쳣��Ϊʶ������
+        public const int MATRIXDECODER_ABILITY = 512;//��·��������ʾ����������
+        //��ȡ/���ô�ӿڲ�����������
+        //����ʶ��NET_VCA_PLATE_CFG��
+        public const int NET_DVR_SET_PLATECFG = 150;//���ó���ʶ�����
+        public const int NET_DVR_GET_PLATECFG = 151;//��ȡ����ʶ�����
+        //��Ϊ��Ӧ��NET_VCA_RULECFG��
+        public const int NET_DVR_SET_RULECFG = 152;//�����쳣��Ϊʶ�����
+        public const int NET_DVR_GET_RULECFG = 153;//��ȡ�쳣��Ϊʶ�����
+
+        //˫������궨������NET_DVR_LF_CFG��
+        public const int NET_DVR_SET_LF_CFG = 160;//����˫����������ò���
+        public const int NET_DVR_GET_LF_CFG = 161;//��ȡ˫����������ò���
+
+        //���ܷ�����ȡ�����ýṹ
+        public const int NET_DVR_SET_IVMS_STREAMCFG = 162;//�������ܷ�����ȡ������
+        public const int NET_DVR_GET_IVMS_STREAMCFG = 163;//��ȡ���ܷ�����ȡ������
+
+        //���ܿ��Ʋ����ṹ
+        public const int NET_DVR_SET_VCA_CTRLCFG = 164;//�������ܿ��Ʋ���
+        public const int NET_DVR_GET_VCA_CTRLCFG = 165;//��ȡ���ܿ��Ʋ���
+
+        //��������NET_VCA_MASK_REGION_LIST
+        public const int NET_DVR_SET_VCA_MASK_REGION = 166;//���������������
+        public const int NET_DVR_GET_VCA_MASK_REGION = 167;//��ȡ�����������
+
+        //ATM�������� NET_VCA_ENTER_REGION
+        public const int NET_DVR_SET_VCA_ENTER_REGION = 168;//���ý����������
+        public const int NET_DVR_GET_VCA_ENTER_REGION = 169;//��ȡ�����������
+
+        //�궨������NET_VCA_LINE_SEGMENT_LIST
+        public const int NET_DVR_SET_VCA_LINE_SEGMENT = 170;//���ñ궨��
+        public const int NET_DVR_GET_VCA_LINE_SEGMENT = 171;//��ȡ�궨��
+
+        // ivms��������NET_IVMS_MASK_REGION_LIST
+        public const int NET_DVR_SET_IVMS_MASK_REGION = 172;//����IVMS�����������
+        public const int NET_DVR_GET_IVMS_MASK_REGION = 173;//��ȡIVMS�����������
+        // ivms����������NET_IVMS_ENTER_REGION
+        public const int NET_DVR_SET_IVMS_ENTER_REGION = 174;//����IVMS�����������
+        public const int NET_DVR_GET_IVMS_ENTER_REGION = 175;//��ȡIVMS�����������
+
+        public const int NET_DVR_SET_IVMS_BEHAVIORCFG = 176;//�������ܷ�������Ϊ�������
+        public const int NET_DVR_GET_IVMS_BEHAVIORCFG = 177;//��ȡ���ܷ�������Ϊ�������
+
+        // IVMS �طż���
+        public const int NET_DVR_IVMS_SET_SEARCHCFG = 178;//����IVMS�طż�������
+        public const int NET_DVR_IVMS_GET_SEARCHCFG = 179;//��ȡIVMS�طż�������     
+
+        /***************************DS9000��������(_V30) begin *****************************/
+        //����(NET_DVR_NETCFG_V30�ṹ)
+        public const int NET_DVR_GET_NETCFG_V30 = 1000;//��ȡ�������
+        public const int NET_DVR_SET_NETCFG_V30 = 1001;//�����������
+
+        //ͼ��(NET_DVR_PICCFG_V30�ṹ)
+        public const int NET_DVR_GET_PICCFG_V30 = 1002;//��ȡͼ�����
+        public const int NET_DVR_SET_PICCFG_V30 = 1003;//����ͼ�����
+
+        //ͼ��(NET_DVR_PICCFG_V40�ṹ)
+        public const int NET_DVR_GET_PICCFG_V40 = 6179;//��ȡͼ�����V40��չ
+        public const int NET_DVR_SET_PICCFG_V40 = 6180;//����ͼ�����V40��չ
+
+        //¼��ʱ��(NET_DVR_RECORD_V30�ṹ)
+        public const int NET_DVR_GET_RECORDCFG_V30 = 1004;//��ȡ¼�����
+        public const int NET_DVR_SET_RECORDCFG_V30 = 1005;//����¼�����
+        
+        public const int NET_DVR_GET_RECORDCFG_V40 = 1008; //��ȡ¼�����(��չ)
+        public const int NET_DVR_SET_RECORDCFG_V40 = 1009; //����¼�����(��չ)
+
+        //�û�(NET_DVR_USER_V30�ṹ)
+        public const int NET_DVR_GET_USERCFG_V30 = 1006;//��ȡ�û�����
+        public const int NET_DVR_SET_USERCFG_V30 = 1007;//�����û�����
+
+        //9000DDNS��������(NET_DVR_DDNSPARA_V30�ṹ)
+        public const int NET_DVR_GET_DDNSCFG_V30 = 1010;//��ȡDDNS(9000��չ)
+        public const int NET_DVR_SET_DDNSCFG_V30 = 1011;//����DDNS(9000��չ)
+
+        //EMAIL����(NET_DVR_EMAILCFG_V30�ṹ)
+        public const int NET_DVR_GET_EMAILCFG_V30 = 1012;//��ȡEMAIL���� 
+        public const int NET_DVR_SET_EMAILCFG_V30 = 1013;//����EMAIL���� 
+
+        //Ѳ������ (NET_DVR_CRUISE_PARA�ṹ)
+        public const int NET_DVR_GET_CRUISE = 1020;
+        public const int NET_DVR_SET_CRUISE = 1021;
+
+        //��������ṹ���� (NET_DVR_ALARMINCFG_V30�ṹ)
+        public const int NET_DVR_GET_ALARMINCFG_V30 = 1024;
+        public const int NET_DVR_SET_ALARMINCFG_V30 = 1025;
+
+        //��������ṹ���� (NET_DVR_ALARMOUTCFG_V30�ṹ)
+        public const int NET_DVR_GET_ALARMOUTCFG_V30 = 1026;
+        public const int NET_DVR_SET_ALARMOUTCFG_V30 = 1027;
+
+        //��Ƶ����ṹ���� (NET_DVR_VIDEOOUT_V30�ṹ)
+        public const int NET_DVR_GET_VIDEOOUTCFG_V30 = 1028;
+        public const int NET_DVR_SET_VIDEOOUTCFG_V30 = 1029;
+
+        //�����ַ��ṹ���� (NET_DVR_SHOWSTRING_V30�ṹ)
+        public const int NET_DVR_GET_SHOWSTRING_V30 = 1030;
+        public const int NET_DVR_SET_SHOWSTRING_V30 = 1031;
+
+        //�쳣�ṹ���� (NET_DVR_EXCEPTION_V30�ṹ)
+        public const int NET_DVR_GET_EXCEPTIONCFG_V30 = 1034;
+        public const int NET_DVR_SET_EXCEPTIONCFG_V30 = 1035;
+
+        //����232�ṹ���� (NET_DVR_RS232CFG_V30�ṹ)
+        public const int NET_DVR_GET_RS232CFG_V30 = 1036;
+        public const int NET_DVR_SET_RS232CFG_V30 = 1037;
+
+        //����Ӳ�̽���ṹ���� (NET_DVR_NET_DISKCFG�ṹ)
+        public const int NET_DVR_GET_NET_DISKCFG = 1038;//����Ӳ�̽����ȡ
+        public const int NET_DVR_SET_NET_DISKCFG = 1039;//����Ӳ�̽�������
+
+        //ѹ������ (NET_DVR_COMPRESSIONCFG_V30�ṹ)
+        public const int NET_DVR_GET_COMPRESSCFG_V30 = 1040;
+        public const int NET_DVR_SET_COMPRESSCFG_V30 = 1041;
+
+        //��ȡ485���������� (NET_DVR_DECODERCFG_V30�ṹ)
+        public const int NET_DVR_GET_DECODERCFG_V30 = 1042;//��ȡ����������
+        public const int NET_DVR_SET_DECODERCFG_V30 = 1043;//���ý���������
+
+        //��ȡԤ������ (NET_DVR_PREVIEWCFG_V30�ṹ)
+        public const int NET_DVR_GET_PREVIEWCFG_V30 = 1044;//��ȡԤ������
+        public const int NET_DVR_SET_PREVIEWCFG_V30 = 1045;//����Ԥ������
+
+        //����Ԥ������ (NET_DVR_PREVIEWCFG_AUX_V30�ṹ)
+        public const int NET_DVR_GET_PREVIEWCFG_AUX_V30 = 1046;//��ȡ����Ԥ������
+        public const int NET_DVR_SET_PREVIEWCFG_AUX_V30 = 1047;//���ø���Ԥ������
+
+        //IP�������ò��� ��NET_DVR_IPPARACFG�ṹ��
+        public const int NET_DVR_GET_IPPARACFG = 1048; //��ȡIP����������Ϣ 
+        public const int NET_DVR_SET_IPPARACFG = 1049;//����IP����������Ϣ
+
+        //IP�������ò��� ��NET_DVR_IPPARACFG_V40�ṹ��
+        public const int NET_DVR_GET_IPPARACFG_V40 = 1062; //��ȡIP����������Ϣ 
+        public const int NET_DVR_SET_IPPARACFG_V40 = 1063;//����IP����������Ϣ
+
+        //IP��������������ò��� ��NET_DVR_IPALARMINCFG�ṹ��
+        public const int NET_DVR_GET_IPALARMINCFG = 1050; //��ȡIP�����������������Ϣ 
+        public const int NET_DVR_SET_IPALARMINCFG = 1051; //����IP�����������������Ϣ
+
+        //IP��������������ò��� ��NET_DVR_IPALARMOUTCFG�ṹ��
+        public const int NET_DVR_GET_IPALARMOUTCFG = 1052;//��ȡIP�����������������Ϣ 
+        public const int NET_DVR_SET_IPALARMOUTCFG = 1053;//����IP�����������������Ϣ
+
+        //Ӳ�̹����IJ�����ȡ (NET_DVR_HDCFG�ṹ)
+        public const int NET_DVR_GET_HDCFG = 1054;//��ȡӲ�̹������ò���
+        public const int NET_DVR_SET_HDCFG = 1055;//����Ӳ�̹������ò���
+
+        //��������IJ�����ȡ (NET_DVR_HDGROUP_CFG�ṹ)
+        public const int NET_DVR_GET_HDGROUP_CFG = 1056;//��ȡ����������ò���
+        public const int NET_DVR_SET_HDGROUP_CFG = 1057;//���������������
+
+        //�豸������������(NET_DVR_COMPRESSION_AUDIO�ṹ)
+        public const int NET_DVR_GET_COMPRESSCFG_AUD = 1058;//��ȡ�豸�����Խ��������
+        public const int NET_DVR_SET_COMPRESSCFG_AUD = 1059;//�����豸�����Խ��������
+
+        //IP�������ò��� ��NET_DVR_IPPARACFG_V31�ṹ��
+        public const int NET_DVR_GET_IPPARACFG_V31 = 1060;//��ȡIP����������Ϣ 
+        public const int NET_DVR_SET_IPPARACFG_V31 = 1061; //����IP����������Ϣ
+
+        //�豸�������� ��NET_DVR_DEVICECFG_V40�ṹ��
+        public const int NET_DVR_GET_DEVICECFG_V40 = 1100;//��ȡ�豸����
+        public const int NET_DVR_SET_DEVICECFG_V40 = 1101;//�����豸����
+
+        //����������(NET_DVR_NETCFG_MULTI�ṹ)
+        public const int NET_DVR_GET_NETCFG_MULTI = 1161;
+        public const int NET_DVR_SET_NETCFG_MULTI = 1162;
+
+        //BONDING����(NET_DVR_NETWORK_BONDING�ṹ)
+        public const int NET_DVR_GET_NETWORK_BONDING = 1254;
+        public const int NET_DVR_SET_NETWORK_BONDING = 1255;
+
+
+        //�����ȶԿ�����
+        public const int NET_DVR_GET_FACELIB_TRIGGER = 3962;   //��ȡ�����ȶԿ����������
+        public const int NET_DVR_SET_FACELIB_TRIGGER = 3963;   //���������ȶԿ����������
+        public const int NET_DVR_GET_FACELIB_SCHEDULE = 3977; //��ȡ�����ȶԿ�IJ���ʱ������
+        public const int NET_DVR_SET_FACELIB_SCHEDULE = 3978; //���������ȶԿ�IJ���ʱ������
+
+        //NATӳ�����ò��� ��NET_DVR_NAT_CFG�ṹ��
+        public const int NET_DVR_GET_NAT_CFG = 6111;    //��ȡNATӳ�����
+        public const int NET_DVR_SET_NAT_CFG = 6112;    //����NATӳ�����  
+
+        //����ǽ
+        public const int NET_DVR_SET_WINCFG = 1202;//���ڲ�������
+        public const int NET_DVR_MATRIX_BIGSCREENCFG_GET = 1140; //��ȡ����ƴ�Ӳ���
+        public const int NET_DVR_MATRIX_BIGSCREENCFG_SET = 1141; //���ô���ƴ�Ӳ���
+
+        public const int NET_DVR_MATRIX_WALL_GET = 9002;  //��ȡ����ǽ����Ļ����
+        public const int NET_DVR_MATRIX_WALL_SET = 9001;  //���õ���ǽ����Ļ����
+
+        public const int NET_DVR_WALLWIN_GET = 9003;  //��ȡ����ǽ���ڲ���
+        public const int NET_DVR_WALLWIN_SET = 9004;  //���õ���ǽ���ڲ���
+
+        public const int NET_DVR_WALLWINPARAM_SET = 9005;  //��ȡ����ǽ������ز���
+        public const int NET_DVR_WALLWINPARAM_GET = 9006;  //���õ���ǽ������ز���
+
+        public const int NET_DVR_SWITCH_WIN_TOP = 9017;  //�����ö�
+        public const int NET_DVR_SWITCH_WIN_BOTTOM = 9018;  //�����õ�
+
+        public const int NET_DVR_GET_VIDEOWALLDISPLAYPOSITION = 1734;//��ȡ��ʾ���λ�ò���
+        public const int NET_DVR_SET_VIDEOWALLDISPLAYPOSITION = 1733;//������ʾ���λ�ò���
+
+        public const int NET_DVR_GET_VIDEOWALLDISPLAYNO = 1732;  //��ȡ�豸��ʾ�����
+
+        public const int NET_DVR_GET_VIDEOWALLWINDOWPOSITION = 1735; //��ȡ����ǽ���ڲ���
+        public const int NET_DVR_SET_VIDEOWALLWINDOWPOSITION = 1736; //���õ���ǽ���ڲ���
+
+        public const int NET_DVR_GET_CHAN_RELATION = 9209;     //��ȡ����ͨ��������Դ����
+        public const int NET_DVR_SET_CHAN_RELATION = 9210;     //���ñ���ͨ��������Դ����
+        public const int NET_DVR_GET_ALL_CHAN_RELATION = 9211; //��ȡ���б���ͨ��������Դ����
+
+        public const int NET_DVR_GET_VW_SCENE_PARAM = 1746; //��ȡ����ǽ����ģʽ����
+        public const int NET_DVR_SET_VW_SCENE_PARAM = 1747; //���õ���ǽ����ģʽ����
+
+        public const int NET_DVR_GET_OUTPUT_PIC_WIN_CFG = 9202;    //��ȡ�����ͼƬ���ڲ���
+        public const int NET_DVR_SET_OUTPUT_PIC_WIN_CFG = 9203;    //���������ͼƬ���ڲ���
+
+        public const int NET_DVR_GET_OUTPUT_OSD_CFG = 9206;    //��ȡ�����OSD����
+        public const int NET_DVR_SET_OUTPUT_OSD_CFG = 9207;    //���������OSD����
+
+        public const int NET_DVR_SCENE_CONTROL = 1744; //��������
+
+
+        public const int NET_DVR_GET_CARD = 2560;
+        public const int NET_DVR_SET_CARD = 2561;
+        public const int NET_DVR_DEL_CARD = 2562;
+        public const int NET_DVR_GET_FINGERPRINT = 2563;
+        public const int NET_DVR_SET_FINGERPRINT = 2564;
+        public const int NET_DVR_DEL_FINGERPRINT = 2565;
+        public const int NET_DVR_GET_FACE = 2566;
+        public const int NET_DVR_SET_FACE = 2567;
+
+        public const int NET_DVR_DEL_FACE_PARAM_CFG = 2509;      //delete face param configure
+        public const int NET_DVR_CAPTURE_FACE_INFO = 2510;       //capture face information
+
+        //Ԥ�õ����ƻ�ȡ������
+        public const int NET_DVR_GET_PRESET_NAME = 3383;
+        public const int NET_DVR_SET_PRESET_NAME = 3382;
+
+        public const int NET_VCA_GET_RULECFG_V41 = 5011; //��ȡ�쳣��Ϊʶ�����
+        public const int NET_VCA_SET_RULECFG_V41 = 5012; //�����쳣��Ϊʶ�����
+
+        public const int NET_DVR_GET_TRAVERSE_PLANE_DETECTION = 3360; //��ȡԽ���������
+        public const int NET_DVR_SET_TRAVERSE_PLANE_DETECTION = 3361; //����Խ���������
+
+        public const int NET_DVR_GET_THERMOMETRY_ALARMRULE = 3627; //��ȡԤ�õ���±�����������
+        public const int NET_DVR_SET_THERMOMETRY_ALARMRULE = 3628; //����Ԥ�õ���±�����������     
+        public const int NET_DVR_GET_THERMOMETRY_TRIGGER = 3632; //��ȡ������������
+        public const int NET_DVR_SET_THERMOMETRY_TRIGGER = 3633; //������������
+
+        public const int NET_DVR_SET_MANUALTHERM_BASICPARAM = 6716;  //�����ֶ����»�������
+        public const int NET_DVR_GET_MANUALTHERM_BASICPARAM = 6717;  //��ȡ�ֶ����»�������
+
+        public const int NET_DVR_SET_MANUALTHERM = 6708; //�����ֶ�������������
+
+        public const int NET_DVR_GET_MULTI_STREAM_COMPRESSIONCFG = 3216; //Զ�̻�ȡ������ѹ������
+        public const int NET_DVR_SET_MULTI_STREAM_COMPRESSIONCFG = 3217; //Զ�����ö�����ѹ������ 
+
+        public const int NET_DVR_VIDEO_CALL_SIGNAL_PROCESS = 16032;  //���ӻ��Խ������
+
+        public const int NET_DVR_ARM_ALARMHOST_SUBSYSTEM = 2036;//���������Ͷ���ϵͳ����
+        
+        public const int NET_DVR_GET_MULTI_CARD_CFG_V50 = 2515;    //��ȡ���ؿ�����V50
+        public const int NET_DVR_SET_MULTI_CARD_CFG_V50  = 2516;    //���ö��ؿ�����V50
+
+        public const int NET_DVR_BARRIERGATE_CTRL = 3128; //��բ����
+
+        public const int NET_DVR_INQUEST_GET_CDW_STATUS = 6350;  //��ȡ��Ѷ����¼״̬-������
+
+        public const int NET_DVR_GET_REALTIME_THERMOMETRY = 3629;    //ʵʱ�¶ȼ��
+
+        public const int NET_DVR_GET_ACS_EVENT = 2514;//�豸�¼���ȡ
+
+        public const int NET_SDK_GET_NEXT_STATUS_SUCCESS = 1000;
+        public const int NET_SDK_GET_NEXT_STATUS_NEED_WAIT = 1001;
+        public const int NET_SDK_GET_NEXT_STATUS_FINISH = 1002;
+        public const int NET_SDK_GET_NEXT_STATUS_FAILED = 1003;
+        /*************************������������ end*******************************/
+
+
+        /************************DVR��־ begin***************************/
+        /* ���� */
+        //������
+        public const int MAJOR_ALARM = 1;
+        //������
+        public const int MINOR_ALARM_IN = 1;/* �������� */
+        public const int MINOR_ALARM_OUT = 2;/* ������� */
+        public const int MINOR_MOTDET_START = 3; /* �ƶ���ⱨ����ʼ */
+        public const int MINOR_MOTDET_STOP = 4; /* �ƶ���ⱨ������ */
+        public const int MINOR_HIDE_ALARM_START = 5;/* �ڵ�������ʼ */
+        public const int MINOR_HIDE_ALARM_STOP = 6;/* �ڵ��������� */
+        public const int MINOR_VCA_ALARM_START = 7;/*���ܱ�����ʼ*/
+        public const int MINOR_VCA_ALARM_STOP = 8;/*���ܱ���ֹͣ*/
+
+        /* �쳣 */
+        //������
+        public const int MAJOR_EXCEPTION = 2;
+        //������
+        public const int MINOR_VI_LOST = 33;/* ��Ƶ�źŶ�ʧ */
+        public const int MINOR_ILLEGAL_ACCESS = 34;/* �Ƿ����� */
+        public const int MINOR_HD_FULL = 35;/* Ӳ���� */
+        public const int MINOR_HD_ERROR = 36;/* Ӳ�̴��� */
+        public const int MINOR_DCD_LOST = 37;/* MODEM ����(������ʹ��) */
+        public const int MINOR_IP_CONFLICT = 38;/* IP��ַ��ͻ */
+        public const int MINOR_NET_BROKEN = 39;/* ����Ͽ�*/
+        public const int MINOR_REC_ERROR = 40;/* ¼����� */
+        public const int MINOR_IPC_NO_LINK = 41;/* IPC�����쳣 */
+        public const int MINOR_VI_EXCEPTION = 42;/* ��Ƶ�����쳣(ֻ���ģ��ͨ��) */
+        public const int MINOR_IPC_IP_CONFLICT = 43;/*ipc ip ��ַ ��ͻ*/
+
+        //��Ƶ�ۺ�ƽ̨
+        public const int MINOR_FANABNORMAL = 49;/* ��Ƶ�ۺ�ƽ̨������״̬�쳣 */
+        public const int MINOR_FANRESUME = 50;/* ��Ƶ�ۺ�ƽ̨������״̬�ָ����� */
+        public const int MINOR_SUBSYSTEM_ABNORMALREBOOT = 51;/* ��Ƶ�ۺ�ƽ̨��6467�쳣���� */
+        public const int MINOR_MATRIX_STARTBUZZER = 52;/* ��Ƶ�ۺ�ƽ̨��dm6467�쳣������������ */
+
+        /* ���� */
+        //������
+        public const int MAJOR_OPERATION = 3;
+        //������
+        public const int MINOR_START_DVR = 65;/* ���� */
+        public const int MINOR_STOP_DVR = 66;/* �ػ� */
+        public const int MINOR_STOP_ABNORMAL = 67;/* �쳣�ػ� */
+        public const int MINOR_REBOOT_DVR = 68;/*���������豸*/
+
+        public const int MINOR_LOCAL_LOGIN = 80;/* ���ص�½ */
+        public const int MINOR_LOCAL_LOGOUT = 81;/* ����ע����½ */
+        public const int MINOR_LOCAL_CFG_PARM = 82;/* �������� */
+        public const int MINOR_LOCAL_PLAYBYFILE = 83;/* ���ذ��ļ��طŻ����� */
+        public const int MINOR_LOCAL_PLAYBYTIME = 84;/* ���ذ�ʱ��طŻ�����*/
+        public const int MINOR_LOCAL_START_REC = 85;/* ���ؿ�ʼ¼�� */
+        public const int MINOR_LOCAL_STOP_REC = 86;/* ����ֹͣ¼�� */
+        public const int MINOR_LOCAL_PTZCTRL = 87;/* ������̨���� */
+        public const int MINOR_LOCAL_PREVIEW = 88;/* ����Ԥ�� (������ʹ��)*/
+        public const int MINOR_LOCAL_MODIFY_TIME = 89;/* �����޸�ʱ��(������ʹ��) */
+        public const int MINOR_LOCAL_UPGRADE = 90;/* �������� */
+        public const int MINOR_LOCAL_RECFILE_OUTPUT = 91;/* ���ر���¼���ļ� */
+        public const int MINOR_LOCAL_FORMAT_HDD = 92;/* ���س�ʼ��Ӳ�� */
+        public const int MINOR_LOCAL_CFGFILE_OUTPUT = 93;/* �������������ļ� */
+        public const int MINOR_LOCAL_CFGFILE_INPUT = 94;/* ���뱾�������ļ� */
+        public const int MINOR_LOCAL_COPYFILE = 95;/* ���ر����ļ� */
+        public const int MINOR_LOCAL_LOCKFILE = 96;/* ��������¼���ļ� */
+        public const int MINOR_LOCAL_UNLOCKFILE = 97;/* ���ؽ���¼���ļ� */
+        public const int MINOR_LOCAL_DVR_ALARM = 98;/* �����ֶ�����ʹ�������*/
+        public const int MINOR_IPC_ADD = 99;/* ��������IPC */
+        public const int MINOR_IPC_DEL = 100;/* ����ɾ��IPC */
+        public const int MINOR_IPC_SET = 101;/* ��������IPC */
+        public const int MINOR_LOCAL_START_BACKUP = 102;/* ���ؿ�ʼ���� */
+        public const int MINOR_LOCAL_STOP_BACKUP = 103;/* ����ֹͣ����*/
+        public const int MINOR_LOCAL_COPYFILE_START_TIME = 104;/* ���ر��ݿ�ʼʱ��*/
+        public const int MINOR_LOCAL_COPYFILE_END_TIME = 105;/* ���ر��ݽ���ʱ��*/
+        public const int MINOR_LOCAL_ADD_NAS = 106;/*������������Ӳ��*/
+        public const int MINOR_LOCAL_DEL_NAS = 107;/* ����ɾ��nas��*/
+        public const int MINOR_LOCAL_SET_NAS = 108;/* ��������nas��*/
+
+        public const int MINOR_REMOTE_LOGIN = 112;/* Զ�̵�¼ */
+        public const int MINOR_REMOTE_LOGOUT = 113;/* Զ��ע����½ */
+        public const int MINOR_REMOTE_START_REC = 114;/* Զ�̿�ʼ¼�� */
+        public const int MINOR_REMOTE_STOP_REC = 115;/* Զ��ֹͣ¼�� */
+        public const int MINOR_START_TRANS_CHAN = 116;/* ��ʼ͸������ */
+        public const int MINOR_STOP_TRANS_CHAN = 117;/* ֹͣ͸������ */
+        public const int MINOR_REMOTE_GET_PARM = 118;/* Զ�̻�ȡ���� */
+        public const int MINOR_REMOTE_CFG_PARM = 119;/* Զ�����ò��� */
+        public const int MINOR_REMOTE_GET_STATUS = 120;/* Զ�̻�ȡ״̬ */
+        public const int MINOR_REMOTE_ARM = 121;/* Զ�̲��� */
+        public const int MINOR_REMOTE_DISARM = 122;/* Զ�̳��� */
+        public const int MINOR_REMOTE_REBOOT = 123;/* Զ������ */
+        public const int MINOR_START_VT = 124;/* ��ʼ�����Խ� */
+        public const int MINOR_STOP_VT = 125;/* ֹͣ�����Խ� */
+        public const int MINOR_REMOTE_UPGRADE = 126;/* Զ������ */
+        public const int MINOR_REMOTE_PLAYBYFILE = 127;/* Զ�̰��ļ��ط� */
+        public const int MINOR_REMOTE_PLAYBYTIME = 128;/* Զ�̰�ʱ��ط� */
+        public const int MINOR_REMOTE_PTZCTRL = 129;/* Զ����̨���� */
+        public const int MINOR_REMOTE_FORMAT_HDD = 130;/* Զ�̸�ʽ��Ӳ�� */
+        public const int MINOR_REMOTE_STOP = 131;/* Զ�̹ػ� */
+        public const int MINOR_REMOTE_LOCKFILE = 132;/* Զ�������ļ� */
+        public const int MINOR_REMOTE_UNLOCKFILE = 133;/* Զ�̽����ļ� */
+        public const int MINOR_REMOTE_CFGFILE_OUTPUT = 134;/* Զ�̵��������ļ� */
+        public const int MINOR_REMOTE_CFGFILE_INTPUT = 135;/* Զ�̵��������ļ� */
+        public const int MINOR_REMOTE_RECFILE_OUTPUT = 136;/* Զ�̵���¼���ļ� */
+        public const int MINOR_REMOTE_DVR_ALARM = 137;/* Զ���ֶ�����ʹ�������*/
+        public const int MINOR_REMOTE_IPC_ADD = 138;/* Զ������IPC */
+        public const int MINOR_REMOTE_IPC_DEL = 139;/* Զ��ɾ��IPC */
+        public const int MINOR_REMOTE_IPC_SET = 140;/* Զ������IPC */
+        public const int MINOR_REBOOT_VCA_LIB = 141;/*�������ܿ�*/
+        public const int MINOR_REMOTE_ADD_NAS = 142;/* Զ������nas��*/
+        public const int MINOR_REMOTE_DEL_NAS = 143;/* Զ��ɾ��nas��*/
+        public const int MINOR_REMOTE_SET_NAS = 144;/* Զ������nas��*/
+
+        //2009-12-16 ������Ƶ�ۺ�ƽ̨��־����
+        public const int MINOR_SUBSYSTEMREBOOT = 160;/*��Ƶ�ۺ�ƽ̨��dm6467 ��������*/
+        public const int MINOR_MATRIX_STARTTRANSFERVIDEO = 161;	/*��Ƶ�ۺ�ƽ̨�������л���ʼ����ͼ��*/
+        public const int MINOR_MATRIX_STOPTRANSFERVIDEO = 162;	/*��Ƶ�ۺ�ƽ̨�������л�ֹͣ����ͼ��*/
+        public const int MINOR_REMOTE_SET_ALLSUBSYSTEM = 163;	/*��Ƶ�ۺ�ƽ̨����������6467��ϵͳ��Ϣ*/
+        public const int MINOR_REMOTE_GET_ALLSUBSYSTEM = 164;	/*��Ƶ�ۺ�ƽ̨����ȡ����6467��ϵͳ��Ϣ*/
+        public const int MINOR_REMOTE_SET_PLANARRAY = 165;	/*��Ƶ�ۺ�ƽ̨�����üƻ���ѯ��*/
+        public const int MINOR_REMOTE_GET_PLANARRAY = 166;	/*��Ƶ�ۺ�ƽ̨����ȡ�ƻ���ѯ��*/
+        public const int MINOR_MATRIX_STARTTRANSFERAUDIO = 167;	/*��Ƶ�ۺ�ƽ̨�������л���ʼ������Ƶ*/
+        public const int MINOR_MATRIX_STOPRANSFERAUDIO = 168;	/*��Ƶ�ۺ�ƽ̨�������л�ֹͣ������Ƶ*/
+        public const int MINOR_LOGON_CODESPITTER = 169;	/*��Ƶ�ۺ�ƽ̨����½�����*/
+        public const int MINOR_LOGOFF_CODESPITTER = 170;	/*��Ƶ�ۺ�ƽ̨���˳������*/
+
+        //2010-12-16 ��������־
+        public const int MINOR_REMOTE_BYPASS             = 0xd0;    /* Զ����·*/
+        public const int MINOR_REMOTE_UNBYPASS           = 0xd1;    /* Զ����·�ָ�*/
+        public const int MINOR_REMOTE_SET_ALARMIN_CFG    = 0xd2;    /* Զ�����ñ����������*/
+        public const int MINOR_REMOTE_GET_ALARMIN_CFG    = 0xd3;    /* Զ�̻�ȡ�����������*/
+        public const int MINOR_REMOTE_SET_ALARMOUT_CFG   = 0xd4;    /* Զ�����ñ����������*/
+        public const int MINOR_REMOTE_GET_ALARMOUT_CFG   = 0xd5;    /* Զ�̻�ȡ�����������*/
+        public const int MINOR_REMOTE_ALARMOUT_OPEN_MAN  = 0xd6;    /* Զ���ֶ������������*/
+        public const int MINOR_REMOTE_ALARMOUT_CLOSE_MAN = 0xd7;    /* Զ���ֶ��رձ������*/
+        public const int MINOR_REMOTE_ALARM_ENABLE_CFG   = 0xd8;    /* Զ�����ñ���������RS485����ʹ��״̬*/
+        public const int MINOR_DBDATA_OUTPUT             = 0xd9;    /* �������ݿ��¼ */
+        public const int MINOR_DBDATA_INPUT              = 0xda;    /* �������ݿ��¼ */
+        public const int MINOR_MU_SWITCH                 = 0xdb;    /* �����л� */
+        public const int MINOR_MU_PTZ                    = 0xdc;    /* ����PTZ���� */
+        public const int MINOR_DELETE_LOGO               = 0xdd;    /* ɾ��logo */
+        public const int MINOR_REMOTE_INQUEST_DEL_FILE   = 0xde;       /*Զ��ɾ���ļ�*/
+
+        /*��־������Ϣ*/
+        //������
+        public const int MAJOR_INFORMATION = 4;/*������Ϣ*/
+        //������
+        public const int MINOR_HDD_INFO = 161;/*Ӳ����Ϣ*/
+        public const int MINOR_SMART_INFO = 162;/*SMART��Ϣ*/
+        public const int MINOR_REC_START = 163;/*��ʼ¼��*/
+        public const int MINOR_REC_STOP = 164;/*ֹͣ¼��*/
+        public const int MINOR_REC_OVERDUE = 165;/*����¼��ɾ��*/
+        public const int MINOR_LINK_START = 166;//����ǰ���豸
+        public const int MINOR_LINK_STOP = 167;//�Ͽ�ǰ���豸��
+        public const int MINOR_NET_DISK_INFO = 168;//����Ӳ����Ϣ
+
+        //����־��������ΪMAJOR_OPERATION=03��������ΪMINOR_LOCAL_CFG_PARM=0x52����MINOR_REMOTE_GET_PARM=0x76����MINOR_REMOTE_CFG_PARM=0x77ʱ��dwParaType:����������Ч���京�����£�
+        public const int PARA_VIDEOOUT = 1;
+        public const int PARA_IMAGE = 2;
+        public const int PARA_ENCODE = 4;
+        public const int PARA_NETWORK = 8;
+        public const int PARA_ALARM = 16;
+        public const int PARA_EXCEPTION = 32;
+        public const int PARA_DECODER = 64;/*������*/
+        public const int PARA_RS232 = 128;
+        public const int PARA_PREVIEW = 256;
+        public const int PARA_SECURITY = 512;
+        public const int PARA_DATETIME = 1024;
+        public const int PARA_FRAMETYPE = 2048;/*֡��ʽ*/
+        //vca
+        public const int PARA_VCA_RULE = 4096;//������
+        /************************DVR��־ End***************************/
+
+
+        /*******************�����ļ�����־��������ֵ*************************/
+        public const int NET_DVR_FILE_SUCCESS = 1000;//����ļ���Ϣ
+        public const int NET_DVR_FILE_NOFIND = 1001;//û���ļ�
+        public const int NET_DVR_ISFINDING = 1002;//���ڲ����ļ�
+        public const int NET_DVR_NOMOREFILE = 1003;//�����ļ�ʱû�и�����ļ�
+        public const int NET_DVR_FILE_EXCEPTION = 1004;//�����ļ�ʱ�쳣
+
+        /*********************�ص��������� begin************************/
+        public const int COMM_ALARM = 0x1100;//8000������Ϣ�����ϴ�����ӦNET_DVR_ALARMINFO
+        public const int COMM_ALARM_RULE = 0x1102;//�쳣��Ϊʶ�𱨾���Ϣ����ӦNET_VCA_RULE_ALARM
+        public const int COMM_ALARM_PDC = 0x1103;//������ͳ�Ʊ����ϴ�����ӦNET_DVR_PDC_ALRAM_INFO
+        public const int COMM_ALARM_ALARMHOST = 0x1105;//���籨�����������ϴ�����ӦNET_DVR_ALARMHOST_ALARMINFO
+        public const int COMM_ALARM_FACE = 0x1106;//�������ʶ�𱨾���Ϣ����ӦNET_DVR_FACEDETECT_ALARM
+        public const int COMM_RULE_INFO_UPLOAD = 0x1107;  // �¼�������Ϣ�ϴ�
+        public const int COMM_ALARM_AID = 0x1110;  //��ͨ�¼�������Ϣ
+        public const int COMM_ALARM_TPS = 0x1111;  //��ͨ����ͳ�Ʊ�����Ϣ
+        public const int COMM_UPLOAD_FACESNAP_RESULT = 0x1112;  //����ʶ�����ϴ�
+        public const int COMM_ALARM_FACE_DETECTION = 0x4010; //������ⱨ����Ϣ
+        public const int COMM_ALARM_TFS = 0x1113;  //��ͨȡ֤������Ϣ
+        public const int COMM_ALARM_TPS_V41 = 0x1114;  //��ͨ����ͳ�Ʊ�����Ϣ��չ
+        public const int COMM_ALARM_AID_V41 = 0x1115;  //��ͨ�¼�������Ϣ��չ
+        public const int COMM_ALARM_VQD_EX = 0x1116;	 //��Ƶ������ϱ���
+        public const int COMM_SENSOR_VALUE_UPLOAD = 0x1120;  //ģ��������ʵʱ�ϴ�
+        public const int COMM_SENSOR_ALARM = 0x1121;  //ģ���������ϴ�
+        public const int COMM_SWITCH_ALARM = 0x1122;	 //����������
+        public const int COMM_ALARMHOST_EXCEPTION = 0x1123; //�����������ϱ���
+        public const int COMM_ALARMHOST_OPERATEEVENT_ALARM = 0x1124;  //�����¼������ϴ�
+        public const int COMM_ALARMHOST_SAFETYCABINSTATE = 0x1125;	 //������״̬
+        public const int COMM_ALARMHOST_ALARMOUTSTATUS = 0x1126;	 //���������/����״̬
+        public const int COMM_ALARMHOST_CID_ALARM = 0x1127;	 //CID���汨���ϴ�
+        public const int COMM_ALARMHOST_EXTERNAL_DEVICE_ALARM = 0x1128;	 //������������豸�����ϴ�
+        public const int COMM_ALARMHOST_DATA_UPLOAD = 0x1129;	 //���������ϴ�
+        public const int COMM_UPLOAD_VIDEO_INTERCOM_EVENT = 0x1132;  //���ӶԽ��¼���¼�ϴ�
+        public const int COMM_ALARM_AUDIOEXCEPTION = 0x1150;	 //����������Ϣ
+        public const int COMM_ALARM_DEFOCUS = 0x1151;	 //�齹������Ϣ
+        public const int COMM_ALARM_BUTTON_DOWN_EXCEPTION = 0x1152;	 //��ť���±�����Ϣ
+        public const int COMM_ALARM_ALARMGPS = 0x1202; //GPS������Ϣ�ϴ�
+        public const int COMM_TRADEINFO = 0x1500;  //ATMDVR�����ϴ�������Ϣ
+        public const int COMM_UPLOAD_PLATE_RESULT = 0x2800;	 //�ϴ�������Ϣ
+        public const int COMM_ITC_STATUS_DETECT_RESULT = 0x2810;  //ʵʱ״̬������ϴ�(���ܸ���IPC)
+        public const int COMM_IPC_AUXALARM_RESULT = 0x2820;  //PIR���������߱��������ȱ����ϴ�
+        public const int COMM_UPLOAD_PICTUREINFO = 0x2900;	 //�ϴ�ͼƬ��Ϣ
+        public const int COMM_SNAP_MATCH_ALARM = 0x2902;  //��ֹ�����ȶԽ���ϴ�
+        public const int COMM_ITS_PLATE_RESULT = 0x3050;  //�ն�ͼƬ�ϴ�
+        public const int COMM_ITS_TRAFFIC_COLLECT = 0x3051;  //�ն�ͳ�������ϴ�
+        public const int COMM_ITS_GATE_VEHICLE = 0x3052;  //����ڳ���ץ�������ϴ�
+        public const int COMM_ITS_GATE_FACE = 0x3053; //���������ץ�������ϴ�
+        public const int COMM_ITS_GATE_COSTITEM = 0x3054;  //����ڹ����շ���ϸ 2013-11-19
+        public const int COMM_ITS_GATE_HANDOVER = 0x3055; //����ڽ��Ӱ����� 2013-11-19
+        public const int COMM_ITS_PARK_VEHICLE = 0x3056;  //ͣ���������ϴ�
+        public const int COMM_ITS_BLOCKLIST_ALARM = 0x3057;  //��ֹ���������ϴ�
+        public const int COMM_ALARM_TPS_REAL_TIME = 0x3081;  //TPSʵʱ���������ϴ�
+        public const int COMM_ALARM_TPS_STATISTICS = 0x3082;  //TPSͳ�ƹ��������ϴ�
+        public const int COMM_ALARM_V30 = 0x4000;	 //9000������Ϣ�����ϴ�
+        public const int COMM_IPCCFG = 0x4001;	 //9000�豸IPC�������øı䱨����Ϣ�����ϴ�
+        public const int COMM_IPCCFG_V31 = 0x4002;	 //9000�豸IPC�������øı䱨����Ϣ�����ϴ���չ 9000_1.1
+        public const int COMM_IPCCFG_V40 = 0x4003; // IVMS 2000 ��������� NVR IPC�������øı�ʱ������Ϣ�ϴ�
+        public const int COMM_ALARM_DEVICE = 0x4004;  //�豸�������ݣ�����ͨ��ֵ����256����չ
+        public const int COMM_ALARM_CVR = 0x4005;  //CVR 2.0.X�ⲿ��������
+        public const int COMM_ALARM_HOT_SPARE = 0x4006;  //�ȱ��쳣������N+1ģʽ�쳣������
+        public const int COMM_ALARM_V40 = 0x4007;	//�ƶ���⣬��Ƶ��ʧ���ڵ���IO�ź����ȱ�����Ϣ�����ϴ�����������Ϊ�ɱ䳤
+        public const int COMM_UPLOAD_HEATMAP_RESULT = 0x4008; //�ȶ�ͼ�����ϴ�
+
+        public const int COMM_ITS_ROAD_EXCEPTION = 0x4500;	 //·���豸�쳣����
+        public const int COMM_ITS_EXTERNAL_CONTROL_ALARM = 0x4520;  //��ر���
+        public const int COMM_FIREDETECTION_ALARM = 0x4991;  //����ⱨ��
+        public const int COMM_SCREEN_ALARM = 0x5000;  //������������������
+        public const int COMM_DVCS_STATE_ALARM = 0x5001;  //�ֲ�ʽ���������������ϴ�
+        public const int COMM_ALARM_VQD = 0x6000;  //VQD���������ϴ� 
+        public const int COMM_PUSH_UPDATE_RECORD_INFO = 0x6001;  //��ģʽ¼����Ϣ�ϴ�
+        public const int COMM_DIAGNOSIS_UPLOAD = 0x5100;  //��Ϸ�����VQD�����ϴ�
+        public const int COMM_ALARM_ACS = 0x5002;  //�Ž���������
+        public const int COMM_ID_INFO_ALARM = 0x5200;  //����֤��Ϣ�ϴ�
+        public const int COMM_PASSNUM_INFO_ALARM = 0x5201;  //ͨ�������ϱ�
+        public const int COMM_ISAPI_ALARM = 0x6009;
+        public const int COMM_GISINFO_UPLOAD = 0x4012; //GIS��Ϣ
+        public const int COMM_ALARM_SHIPSDETECTION = 0x4521; //��ֻ��ⱨ����Ϣ
+        public const int COMM_HFPD_ALARM = 0x6121; //��Ƶͼ������ʶ���ⱨ��(Json���ݽṹ)
+
+        public const int COMM_THERMOMETRY_ALARM = 0x5212; //�¶ȱ�����Ϣ
+
+        public const int COMM_UPLOAD_AIOP_VIDEO         =  0x4021; //�豸֧��AI����ƽ̨���룬�ϴ���Ƶ�������
+        public const int COMM_UPLOAD_AIOP_PICTURE       =  0x4022; //�豸֧��AI����ƽ̨���룬�ϴ�ͼƬ�������
+        public const int COMM_UPLOAD_AIOP_POLLING_SNAP = 0x4023; //�豸֧��AI����ƽ̨���룬�ϴ���ѲץͼͼƬ������� ��Ӧ�Ľṹ��(NET_AIOP_POLLING_SNAP_HEAD)
+        public const int COMM_UPLOAD_AIOP_POLLING_VIDEO = 0x4024; //�豸֧��AI����ƽ̨���룬�ϴ���Ѳ��Ƶ������� ��Ӧ�Ľṹ��(NET_AIOP_POLLING_VIDEO_HEAD)
+
+		
+
+		public const int NET_DVR_JSON_CONFIG = 2550;
+        public const int NET_DVR_FACE_DATA_RECORD = 2551;
+        public const int NET_DVR_FACE_DATA_SEARCH = 2552;
+        public const int NET_DVR_FACE_DATA_MODIFY = 2553;
+		
+		public const int NET_DVR_REMOTECONTROL_GATEWAY      =      16009;  //Զ�̿���
+		
+		
+		[DllImportAttribute(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_SendWithRecvRemoteConfig(int lHandle, IntPtr lpInBuff, uint dwInBuffSize, IntPtr lpOutBuff, uint dwOutBuffSize, ref uint dwOutDataLen);
+
+        [DllImportAttribute(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_SendWithRecvRemoteConfig(int lHandle, ref CHCNetSDK.NET_DVR_FACE_RECORD lpInBuff, int dwInBuffSize, ref CHCNetSDK.NET_DVR_FACE_STATUS lpOutBuff, int dwOutBuffSize, IntPtr dwOutDataLen);
+
+        [DllImport(@"..\..\..\HCNetSDK\HCNetSDK.dll")]
+        public static extern int NET_DVR_SendWithRecvRemoteConfig(int lHandle, ref CHCNetSDK.NET_DVR_FINGERPRINT_RECORD lpInBuff, int dwInBuffSize, ref CHCNetSDK.NET_DVR_FINGERPRINT_STATUS lpOutBuff, int dwOutBuffSize, IntPtr dwOutDataLen);
+
+        // �û�����SendwithRecv�ӿ�ʱ���ӿڷ��ص�״̬
+        public enum NET_SDK_SENDWITHRECV_STATUS
+        {
+            NET_SDK_CONFIG_STATUS_SUCCESS = 1000,    // �ɹ���ȡ�����ݣ��ͻ��˴����걾�����ݺ���Ҫ�ٴε���NET_DVR_SendWithRecvRemoteConfig��ȡ��һ������
+            NET_SDK_CONFIG_STATUS_NEEDWAIT,          // ���õȴ����ͻ��˿�����NET_DVR_SendWithRecvRemoteConfig
+            NET_SDK_CONFIG_STATUS_FINISH,            // ����ȫ��ȡ�꣬��ʱ�ͻ��˿ɵ���NET_DVR_StopRemoteConfig����
+            NET_SDK_CONFIG_STATUS_FAILED,            // ����ʧ�ܣ��ͻ��˿�����NET_DVR_SendWithRecvRemoteConfig
+            NET_SDK_CONFIG_STATUS_EXCEPTION,         // �����쳣����ʱ�ͻ��˿ɵ���NET_DVR_StopRemoteConfig����
+        }
+		
+		[DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_STDXMLConfig(int lUserID, IntPtr lpInputParam, IntPtr lpOutputParam);
+		
+		[DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_ControlGateway(int lUserID, int lGatewayIndex, uint dwStaic);
+		
+		[DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetDVRMessageCallBack_V50(int iIndex, MSGCallBack fMessageCallBack, IntPtr pUser);
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_JSON_DATA_CFG
+        {
+            public uint dwSize;                    //size of NET_DVR_JSON_DATA_CFG
+            public IntPtr lpJsonData;                //Json data
+            public uint dwJsonDataSize;            //Json data size
+            public IntPtr lpPicData;                //picture data
+            public uint dwPicDataSize;            //picture data size
+            public uint dwInfraredFacePicSize;            //infrared picture data size
+            public IntPtr lpInfraredFacePicBuffer;                //infrared picture data
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 248)]
+            public byte[] byRes;  //reserve
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CAPTURE_FACE_COND
+        {
+            public int dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public void init()
+            {
+                byRes = new byte[128];
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CAPTURE_FACE_CFG
+        {
+            public int dwSize;
+            public int dwFaceTemplate1Size;//����ģ��1���ݴ�С������0ʱ������������ģ��1����
+            public IntPtr pFaceTemplate1Buffer;//����ģ��1���ݻ��棨������2.5k��
+            public int dwFaceTemplate2Size;//����ģ��2���ݴ�С������0ʱ������������ģ��2����
+            public IntPtr pFaceTemplate2Buffer; //����ģ��2���ݻ��棨������2.5K��
+            public int dwFacePicSize;//����ͼƬ���ݴ�С������0ʱ������������ͼƬ����;
+            public IntPtr pFacePicBuffer;//����ͼƬ���ݻ���;
+            public byte byFaceQuality1;//������������Χ1-100
+            public byte byFaceQuality2;//������������Χ1-100
+            public byte byCaptureProgress;    //�ɼ����ȣ�Ŀǰֻ�����ֽ���ֵ��0-δ�ɼ���������100-�ɼ���������ֻ���ڽ���Ϊ100ʱ���Ž���������Ϣ��
+            public byte byRes1;
+            public int dwInfraredFacePicSize;   //��������ͼƬ���ݴ�С������0ʱ������������ͼƬ����
+            public IntPtr pInfraredFacePicBuffer;      //��������ͼƬ���ݻ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 116, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public void init()
+            {
+                byRes = new byte[116];
+            }
+        }
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_GetNextRemoteConfig(int lHandle, ref CHCNetSDK.NET_DVR_CAPTURE_FACE_CFG lpOutBuff, int dwOutBuffSize);
+
+        public const int ERROR_MSG_LEN = 32;
+        public const int MAX_FINGER_PRINT_LEN = 768;
+        public const int NET_DVR_CAPTURE_FINGERPRINT_INFO = 2504;
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FINGERPRINT_STATUS
+        {
+            public int dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = CHCNetSDK.ACS_CARD_NO_LEN)]
+            public byte[] byCardNo;
+            public byte byCardReaderRecvStatus;//ָ�ƶ�����״̬�����ֽڱ�ʾ��0-ʧ�ܣ�1-�ɹ���2-��ָ��ģ�鲻���ߣ�3-���Ի�ָ�������4-�ڴ�������5-�Ѵ��ڸ�ָ�ƣ�6-�Ѵ��ڸ�ָ��ID��7-�Ƿ�ָ��ID��8-��ָ��ģ����������
+            public byte byFingerPrintID;//��ָ��ţ���Чֵ��ΧΪ1-10
+            public byte byFingerType;//ָ������  0-��ָͨ�ƣ�1-в��ָ��
+            public byte byRecvStatus;//��������״̬��0-�ɹ���1-��ָ��Ŵ���2-ָ�����ʹ���3-���Ŵ��󣨿��Ź�񲻷����豸Ҫ�󣩣�4-ָ��δ�������Ż򿨺ţ����Ż򿨺��ֶ�Ϊ�գ���5-���Ų����ڣ�6-ָ�����ݳ���Ϊ0��7-��������Ŵ���8-���Ŵ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = CHCNetSDK.ERROR_MSG_LEN)]
+            public byte[] byErrorMsg;//�·�������Ϣ����byCardReaderRecvStatusΪ5ʱ����ʾ�Ѵ���ָ�ƶ�Ӧ�Ŀ���
+            public int dwCardReaderNo;//��byCardReaderRecvStatusΪ5ʱ����ʾ�Ѵ���ָ�ƶ�Ӧ��ָ�ƶ�������ţ��������·����󷵻ء�0ʱ��ʾ�޴�����Ϣ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20)]
+            public byte[] byRes;
+            public void init()
+            {
+                byCardNo = new byte[CHCNetSDK.ACS_CARD_NO_LEN];
+                byErrorMsg = new byte[CHCNetSDK.ERROR_MSG_LEN];
+
+                byRes = new byte[20];
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FINGERPRINT_RECORD
+        {
+            public int dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = CHCNetSDK.ACS_CARD_NO_LEN)]
+            public byte[] byCardNo; //ָ�ƹ����Ŀ���
+            public int dwFingerPrintLen; //ָ�����ݳ���
+            public int dwEnableReaderNo;//��Ҫ�·�ָ�ƵĶ��������
+            public byte byFingerPrintID;//��ָ��ţ���Чֵ��ΧΪ1-10
+            public byte byFingerType;//ָ������  0-��ָͨ�ƣ�1-в��ָ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 30)]
+            public byte[] byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = CHCNetSDK.MAX_FINGER_PRINT_LEN)]
+            public byte[] byFingerData;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 96)]
+            public byte[] byRes;
+            public void init()
+            {
+                byCardNo = new byte[CHCNetSDK.ACS_CARD_NO_LEN];
+                byRes1 = new byte[30];
+                byFingerData = new byte[CHCNetSDK.MAX_FINGER_PRINT_LEN];
+                byRes = new byte[96];
+            }
+        }
+
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FINGER_PRINT_INFO_CTRL_V50_ByCardNo
+        {
+            public int dwSize;
+            public byte byMode;  //ɾ����ʽ��0-�����ţ���ԱID����ʽɾ����1-��������ɾ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3)]
+            public byte[] byRes1;
+            public CHCNetSDK.NET_DVR_FINGER_PRINT_BYCARD_V50 struProcessMode;//������ʽ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64)]
+            public byte[] byRes;
+            public void init()
+            {
+                byRes1 = new byte[3];
+                byRes = new byte[64];
+                struProcessMode.init();
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FINGER_PRINT_BYCARD_V50
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = CHCNetSDK.ACS_CARD_NO_LEN)]
+            public byte[] byCardNo;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = CHCNetSDK.MAX_CARD_READER_NUM_512)]
+            public byte[] byEnableCardReader;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = CHCNetSDK.MAX_FINGER_PRINT_NUM)]
+            public byte[] byFingerPrintID;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2)]
+            public byte[] byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = CHCNetSDK.NET_SDK_EMPLOYEE_NO_LEN)]
+            public byte[] byEmployeeNo;
+            public void init()
+            {
+                byCardNo = new byte[CHCNetSDK.ACS_CARD_NO_LEN];
+                byEnableCardReader = new byte[CHCNetSDK.MAX_CARD_READER_NUM_512];
+                byFingerPrintID = new byte[CHCNetSDK.MAX_FINGER_PRINT_NUM];
+                byRes1 = new byte[2];
+                byEmployeeNo = new byte[CHCNetSDK.NET_SDK_EMPLOYEE_NO_LEN];
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FINGER_PRINT_INFO_STATUS_V50
+        {
+            public int dwSize;
+            public int dwCardReaderNo;
+            public byte byStatus;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 63)]
+            public byte[] byRes;
+            public void init()
+            {
+                byRes = new byte[63];
+            }
+        }
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_GetNextRemoteConfig(int lHandle, ref CHCNetSDK.NET_DVR_FINGER_PRINT_INFO_STATUS_V50 lpOutBuff, int dwOutBuffSize);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_GetNextRemoteConfig(int lHandle, ref CHCNetSDK.NET_DVR_ACS_EVENT_CFG lpOutBuff, int dwOutBuffSize);
+
+        [DllImport(@"..\..\..\HCNetSDK\HCNetSDK.dll")]
+        public static extern int NET_DVR_GetNextRemoteConfig(int lHandle, ref CHCNetSDK.NET_DVR_FINGERPRINT_RECORD lpOutBuff, int dwOutBuffSize);
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CAPTURE_FINGERPRINT_COND
+        {
+            public int dwSize;
+            public byte byFingerPrintPicType;    //ͼƬ���ͣ�0-������
+            public byte byFingerNo;              //��ָ��ţ���Χ1-10
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 126)]
+            public byte[] byRes;
+
+            public void init()
+            {
+                byRes = new byte[126];
+            }
+        }
+
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CAPTURE_FINGERPRINT_CFG
+        {
+            public int dwSize;
+            public int dwFingerPrintDataSize;    //ָ�����ݴ�С
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = CHCNetSDK.MAX_FINGER_PRINT_LEN)]
+            public byte[] byFingerData;        //ָ����������
+            public int dwFingerPrintPicSize;    //ָ��ͼƬ��С������0ʱ��������ָ��ͼƬ����
+            public IntPtr pFingerPrintPicBuffer;       //ָ��ͼƬ����
+            public byte byFingerNo;              //��ָ��ţ���Χ1-10
+            public byte byFingerPrintQuality;    //ָ����������Χ1-100
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 62)]
+            public byte[] byRes;
+
+            public void init()
+            {
+                byFingerData = new byte[CHCNetSDK.MAX_FINGER_PRINT_LEN];
+                byRes = new byte[62];
+            }
+        }
+
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_GetNextRemoteConfig(int lHandle, ref CHCNetSDK.NET_DVR_CAPTURE_FINGERPRINT_CFG lpOutBuff, int dwOutBuffSize);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_GetNextRemoteConfig(int lHandle, ref CHCNetSDK.NET_DVR_FACE_RECORD lpOutBuff, int dwOutBuffSize);
+
+		//Network Configure Structure(V50)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_NETCFG_V50
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ETHERNET, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_ETHERNET_V30[] struEtherNet;        //Network Port
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_IPADDR[] struRes1;                            /*reserve*/
+            public NET_DVR_IPADDR struAlarmHostIpAddr;                    /* IP address of remote management host */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;                                        /* reserve */
+            public ushort wAlarmHostIpPort;                                /* Port of remote management Host */
+            public byte byUseDhcp;                                      /* Whether to enable the DHCP 0xff- invalid 0- enabled 1- not enabled */
+            public byte byIPv6Mode;                                        //IPv6 allocation, 0- routing announcement, 1- manually, 2- enable DHCP allocation 
+            public NET_DVR_IPADDR struDnsServer1IpAddr;                    /* IP address of the domain name server 1  */
+            public NET_DVR_IPADDR struDnsServer2IpAddr;                    /* IP address of the domain name server 2  */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DOMAIN_NAME, ArraySubType = UnmanagedType.I1)]
+            public byte[] byIpResolver;                    /* IP parse server domain name or IP address */
+            public ushort wIpResolverPort;                                /* Parsing IP server port number */
+            public ushort wHttpPortNo;                                    /* HTTP port number  */
+            public NET_DVR_IPADDR struMulticastIpAddr;                    /* Multicast group address */
+            public NET_DVR_IPADDR struGatewayIpAddr;                        /* Gateway address  */
+            public NET_DVR_PPPOECFG struPPPoE;
+            public byte byEnablePrivateMulticastDiscovery;                //Private multicast search, 0- default, 1- enabled, 2 - disabled 
+            public byte byEnableOnvifMulticastDiscovery;                //Onvif multicast search, 0- default, 1- enabled, 2 - disabled 
+            public ushort wAlarmHost2IpPort;                                /* Alarm host 2 port */
+            public NET_DVR_IPADDR struAlarmHost2IpAddr;                    /* Alarm host 2 IP addresses */
+            public byte byEnableDNS; //DNS Enabled, 0-close,1-open 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 599, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public void Init()
+            {
+                struEtherNet = new NET_DVR_ETHERNET_V30[MAX_ETHERNET];
+                struRes1 = new NET_DVR_IPADDR[2];
+                struAlarmHostIpAddr = new NET_DVR_IPADDR();
+                struAlarmHost2IpAddr = new NET_DVR_IPADDR();
+                struDnsServer1IpAddr = new NET_DVR_IPADDR();
+                struDnsServer2IpAddr = new NET_DVR_IPADDR();
+                byIpResolver = new byte[MAX_DOMAIN_NAME];
+                struMulticastIpAddr = new NET_DVR_IPADDR();
+                struGatewayIpAddr = new NET_DVR_IPADDR();
+                struPPPoE = new NET_DVR_PPPOECFG();
+                byRes = new byte[599];
+            }
+        }
+		
+		public const int MAX_CENTERNUM = 4;
+		
+		[StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ALARMHOST_NETCFG
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CENTERNUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_ALARMHOST_NETPARAM[] struNetCenter;      
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[]    byRes1;
+        }
+		
+		
+		[StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ALARMHOST_ABILITY
+        {
+            public  uint      dwSize;                      // �ṹ���С
+            public  ushort    wTotalAlarmInNum;         // �������������(����),��������
+            public  ushort    wLocalAlarmInNum;         // ���ر��������
+            public  ushort    wExpandAlarmInNum;        // ����չ�ı��������
+            public  ushort    wTotalAlarmOutNum;        // ������������� ���豸֧�ֵ�������
+            public  ushort    wLocalAlarmOutNum;        // ���ر�������ڸ���
+            public  ushort    wExpandAlarmOutNum;       // ����չ�ı��������
+            public  ushort    wTotalRs485Num;           // ������������� ���豸֧�ֵ�������
+            public  ushort    wLocalRs485Num;           // ����485����
+            public  ushort    wExpandRs485Num;          // ����չ��485����
+            public  ushort    wFullDuplexRs485Num;    // ȫ˫����485����
+            public  ushort    wTotalSensorNum;          // ģ���������� (�豸֧�ֵ�����)
+            public  ushort    wLocalSensorNum;        // ����ģ��������
+            public  ushort    wExpandSensorNum;         // ����չ��ģ��������
+            public  ushort    wAudioOutNum;                //�����������
+            public  ushort    wGatewayNum;            //�Ž�����
+            public  ushort    wElectroLockNum;            //��������
+            public  ushort    wSirenNum;                 // ����������Ŀ
+            public  ushort    wSubSystemNum;            // �ɻ�����ϵͳ��Ŀ
+            public  ushort    wNetUserNum;            // �����û���
+            public  ushort    wKeyboardNum;           // ������
+            public  ushort    wOperatorUserNum;           // �����û���
+            public byte    bySupportDetector;//�Ƿ�֧�ֳ���������̽������1-֧�֣�0-��֧��
+            public byte    bySupportSensitivity;//�Ƿ�֧�ַ��������ȣ�1-֧�֣�0-��֧��
+            public byte    bySupportArrayBypass;//�Ƿ�֧������·��1-֧�֣�0-��֧��
+            public byte    bySupportAlarmInDelay;//�Ƿ�֧�ַ����ӳ�,1-֧�֣�0-��֧��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[]    bySupportAlarmInType;//֧�ֵķ�������,����0:��ʱ����,1-24Сʱ����,2-��ʱ���� ,3-�ڲ�������4-Կ�׷��� 5-�𾯷��� 6-�ܽ���� 7-24Сʱ�������� 8-24Сʱ����������9-24Сʱ�𶯷���,10-�Ž��������ŷ�����11-�Ž��������ŷ���15-��
+            public byte    byTelNum;        //֧�ֵ绰����
+            public byte    byCenterGroupNum;    //���������
+            public byte    byGPRSNum;        //GPRS�����������4��
+            public byte    byNetNum;        //���������������4��
+            public byte    byAudioNum;        //��Ƶ����
+            public byte    by3GNum;        //3Gģ�����
+            public byte    byAnalogVideoChanNum;        //ģ����Ƶͨ������
+            public byte    byDigitalVideoChanNum;        //������Ƶͨ������
+            public byte    bySubSystemArmType;        //��ϵͳ�������ͣ�0-��ʾ��֧�֣�1-��ʾ֧�֡�bit0-��ͨ������ע������С����ֻ֧����ͨ���������������м�����ֶε�ʱ������С�����Ѿ���������������С�����и��ֶ�Ϊ0��������0��ʾ֧�֣�1��ʾ��֧�֡�����ӿ���SDK�ڲ��������ݣ���bit1-��ʱ������bit2-���ز�����    
+            public byte    byPublicSubSystemNum;    //������ϵͳ����
+            
+            public uint    dwSupport1;    //��λ��ʾ�������0��ʾ֧�֣�0��ʾ��֧��
+            public uint    dwSubSystemEvent;        //��ϵͳ�¼�����λ��ʾ��0��ʾ��֧�֣���0��ʾ֧��,bit0-������ʱ��bit1-�˳���ʱ��bit2-������bit3-������bit4-������bit5-������������
+            public uint    dwOverallEvent;            //ȫ���¼�����λ��ʾ��0��ʾ��֧�֣���0��ʾ֧�֣�bit0-��������磬bit1-��ص�ѹ�ͣ�bit2-�绰�ߵ��ߣ�bit3-���������쳣��bit4-���������쳣��bit5-Ӳ�̹���,bit6-3G/4G�ź��쳣, bit7-��ģ�����ӣ���������������,bit8-WIFIͨ�Ź��ϣ�bit9-RF�źŸ��Ź���
+            public uint    dwFaultType;            //�豸֧�ֵĹ������ͣ�bit0-������ϵ磬bit1-����Ƿѹ��bit2-�������𿪣�bit3-�绰�ߵ��ߣ�bit4-�����̵��ߣ�bit5-������ϣ�bit6-�����쳣��bit7-��չ�����쳣��bit8-Ӳ���쳣    
+            
+            public byte    byPublicSubsystemAssociateSubsystemNum;    //������ϵͳ�ɹ�������ϵͳ����
+            public byte    byOverallKeyboard;    //ȫ�ּ��̸���
+            public ushort    wSafetyCabinSupport; //�����տ�������������λ��ʾ�������0��ʾ֧�֣�0��ʾ��֧��    
+           
+            public byte   by485SlotNum;        //485������
+            public byte   bySubSystemAttributeAbility;  // ֵ��Ϊ1����ֹ1����ϵͳ�ر�ʹ��
+            
+            public ushort    wKeyboardAddrNum;      // ���̵�ַ��
+            public byte      byAlarmLampNum;         //������Ŀ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 117, ArraySubType = UnmanagedType.I1)]
+            public byte[]    byRes;            //  �����ֽ�
+            public void Init()
+            {
+                bySupportAlarmInType = new byte[16];
+                byRes = new byte[117];
+            }
+        }
+		
+		public const int ALARMHOST_ABILITY = 0x500;
+		
+		[StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ALARMHOST_NETCFG_V50
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CENTERNUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_ALARMHOST_NETPARAM_V50[]   struNetCenter;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128, ArraySubType = UnmanagedType.I1)]
+            public byte[]        byRes1;
+            public void Init()
+            {
+                struNetCenter = new NET_DVR_ALARMHOST_NETPARAM_V50[MAX_CENTERNUM];
+                byRes1 = new byte[128];
+            }
+        }
+
+		[StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ALARMHOST_NETPARAM_V50
+        {
+            public uint     dwSize;
+            public NET_DVR_IPADDR  struIP;
+            public ushort    wPort;
+            public byte      byAddressType;    //0 - ������, 1 - ipv4/ipv6��ַ��2 - ����
+            public byte      byEnable; //ʹ�ܣ�0-�����ã�1-����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DOMAIN_NAME, ArraySubType = UnmanagedType.I1)]
+            public byte[]    byDomainName; //������GPRS�������á������������ʱ���ֶξ���Ч
+            public byte      byReportProtocol;        //1-private 2-NAL2300, 3-Ehome
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = ACCOUNTNUM_LEN_32, ArraySubType = UnmanagedType.I1)]
+            public byte[]   byDevID; //Э��ΪNAL2300ʱ��Ч
+            public byte     byProtocolVersion;            //EHomeЭ��汾��0-������,1�Cv2.0��2�Cv4.0��3-v5.0
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[]    byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NET_SDK_EHOME_KEY_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[]    byEHomeKey;            //EHome Key������EHome 5.0�汾��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 28, ArraySubType = UnmanagedType.I1)]
+            public byte[]    byRes2; //GPRS�������������ڹ̶��ķ������Ͻ��еģ����Բ���Ҫ����������������ϢԤ��һЩ�ֶ�
+            public void Init()
+            {
+                struIP = new NET_DVR_IPADDR();
+                byDomainName = new byte[MAX_DOMAIN_NAME];
+                byDevID   = new byte[ACCOUNTNUM_LEN_32];
+                byRes1 = new byte[3];
+                byEHomeKey = new byte[NET_SDK_EHOME_KEY_LEN];
+                byRes2 = new byte[28];
+            }
+         }
+		
+		public const int NET_DVR_SET_ALARMHOST_NETCFG_V50 = 2225;    //Set Net info V50
+        public const int NET_DVR_GET_ALARMHOST_NETCFG_V50 = 2224;    //Get Net infoV50
+		
+		public const int MAX_AUDIO_V40 = 8;
+		
+		[StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SIMPLE_DAYTIME
+        {
+            public byte byHour; //hour
+            public byte byMinute; //minute
+            public byte bySecond; //second
+            public byte byRes;
+        }
+		
+		
+		public const int NET_DVR_GET_NETCFG_V50 = 1015;    //Get network parameter configuration (V50) 
+        public const int NET_DVR_SET_NETCFG_V50 = 1016;    //Set network parameter configuration (V50) 
+
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_INDEX
+        {
+            public uint iIndex;
+            public void Init()
+            {
+                iIndex = 1;
+            }
+        }
+
+        public struct NET_DVR_INBUFF
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.U4)]
+            public uint[] StatusList;
+            public void Init()
+            {
+                StatusList = new uint[16];
+            }
+        }
+
+
+		[StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ALARMHOST_REPORT_CENTER_CFG_V40
+        {
+             public uint  dwSize;
+             public byte  byValid;
+             public byte  byDataType;            //1-All alarm data 2-not alarm data 3-all data,4-zone report,5-not zone report
+             [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+             public byte[]  byRes;
+             [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.Struct)]
+             public byte[]  byChanAlarmMode;//alarm channels, 1-T1,2-T2, 3-N1, 4-N2,5-G1, 6-G2 ,7-N3, 8-N4
+             [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.Struct)]
+             public byte[]  byDealFailCenter; //send to these centers while send fail 0-not choose,1-choose
+             [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 512, ArraySubType = UnmanagedType.Struct)]
+             public byte[]   byZoneReport;    //zone report type,0-not upload,1-upload 
+             [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.Struct)]
+             public byte[]  byNonZoneReport; //not zone report, 0-not upload,1-upload byNonZoneReport[0]-soft zone report byNonZoneReport[1]-system status report byNonZoneReport[2]-cancel report byNonZoneReport[3]-test report byNonZoneReport[4]-arm report byNonZoneReport[5]-disarm report byNonZoneReport[6]-duress report byNonZoneReport[7]-alarm recovery report byNonZoneReport[8]-bypass report byNonZoneReport[9]-bypass restore report,byNonZoneReport[10]-detector connect status report(online/offline),byNonZoneReport[11]-detector power status report(normal/low);bit12-video alarm report
+             [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.Struct)]
+             public byte[]  byAlarmNetCard;    //network card center,0-primary card_1,1-primary card_2,2-extend card_1,3-extend card_2
+             [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 252, ArraySubType = UnmanagedType.Struct)]
+             public byte[]  byRes2;
+             public void Init()
+             { 
+                 byRes  = new byte[2];
+                 byChanAlarmMode = new byte[4];
+                 byDealFailCenter = new byte[16];
+                 byZoneReport = new byte[512];
+                 byNonZoneReport = new byte[32];
+                 byAlarmNetCard = new byte[4];
+                 byRes2 = new byte[252];
+             }
+        }
+		
+		public const int DOOR_NAME_LEN = 32;//door name len 
+        public const int STRESS_PASSWORD_LEN = 8;//stress password len
+        public const int SUPER_PASSWORD_LEN = 8;//super password len
+        public const int UNLOCK_PASSWORD_LEN = 8;
+        public const int MAX_DOOR_NUM = 32;
+        public const int MAX_GROUP_NUM = 32;
+        public const int LOCAL_CONTROLLER_NAME_LEN = 32;
+		
+		[StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DOOR_CFG
+        {
+            public uint dwSize;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = DOOR_NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDoorName;//door name
+            public byte byMagneticType;//magnetic type, 0-always close 1-always open
+            public byte byOpenButtonType;//open button type,  0-always close 1-always open
+            public byte byOpenDuration;//open duration time, 1-255s(ladder control relay action time)
+            public byte byDisabledOpenDuration;//disable open duration , 1-255s  
+            public byte byMagneticAlarmTimeout;//magnetic alarm time out , 0-255s,0 means not to alarm
+            public byte byEnableDoorLock;//whether to enable door lock, 0-disable, 1-enable
+            public byte byEnableLeaderCard;//whether to enable leader card , 0-disable, 1-enable
+            public byte byLeaderCardMode;//First card mode, 0 - first card function is not enabled, and 1 - the first card normally open mode, 2 - the first card authorization mode (using this field, the byEnableLeaderCard is invalid ) 
+            public uint dwLeaderCardOpenDuration;//leader card open duration 1-1440min
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = STRESS_PASSWORD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byStressPassword;//stress ppassword
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = SUPER_PASSWORD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] bySuperPassword; //super password
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = UNLOCK_PASSWORD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byUnlockPassword;
+            public byte byUseLocalController; //Read-only, whether the connection on the local controller, 0 - no, 1 - yes
+            public byte byRes1;
+            public ushort wLocalControllerID; //Read-only, on-site controller serial number, 1-64, 0 on behalf of unregistered 
+            public ushort wLocalControllerDoorNumber; //Read-only, on-site controller door number, 1-4, 0 represents the unregistered 
+            public ushort wLocalControllerStatus; //Read-only, on-site controller online status: 0 - offline, 1 - online, 2 - loop of RS485 serial port 1 on 1, 3 - loop of RS485 serial port 2 on 2, 4 - loop of RS485 serial port 1, 5 - loop of RS485 serial port 2, 6 - loop 3 of RS485 serial port 1, 7 - the loop on the RS485 serial port on the 3 4 2, 8 - loop on the RS485 serial port 1, 9 - loop 4 of RS485 serial port 2 (read-only) 
+            public byte byLockInputCheck; //Whether to enable the door input detection (1 public byte, 0 is not enabled, 1 is enabled, is not enabled by default) 
+            public byte byLockInputType; //Door lock input type 
+            public byte byDoorTerminalMode; //Gate terminal working mode 
+            public byte byOpenButton; //Whether to enable the open button 
+            public byte byLadderControlDelayTime; //ladder control delay time,1-255min
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 43, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+
+            public void Init()
+            { 
+                byDoorName = new byte[DOOR_NAME_LEN];
+                byStressPassword = new byte[STRESS_PASSWORD_LEN];
+                bySuperPassword = new byte[SUPER_PASSWORD_LEN];
+                byUnlockPassword = new byte[UNLOCK_PASSWORD_LEN];
+                byRes2 = new byte[43];
+            }
+        }
+		
+		public const int NET_DVR_GET_DOOR_CFG = 2108; //get door parameter
+        public const int NET_DVR_SET_DOOR_CFG = 2109; //set door parameter
+		
+		
+		public const int NET_DVR_SET_ALARMHOST_REPORT_CENTER_V40 = 2065;   // set data report mode v30
+
+		
+		
+		
+		
+		
+		
+		
+		
+		
+		
+
+        /*************�����쳣����(��Ϣ��ʽ, �ص���ʽ(����))****************/
+        public const int EXCEPTION_EXCHANGE = 32768;//�û�����ʱ�쳣
+        public const int EXCEPTION_AUDIOEXCHANGE = 32769;//�����Խ��쳣
+        public const int EXCEPTION_ALARM = 32770;//�����쳣
+        public const int EXCEPTION_PREVIEW = 32771;//����Ԥ���쳣
+        public const int EXCEPTION_SERIAL = 32772;//͸��ͨ���쳣
+        public const int EXCEPTION_RECONNECT = 32773;//Ԥ��ʱ����
+        public const int EXCEPTION_ALARMRECONNECT = 32774;//����ʱ����
+        public const int EXCEPTION_SERIALRECONNECT = 32775;//͸��ͨ������
+        public const int EXCEPTION_PLAYBACK = 32784;//�ط��쳣
+        public const int EXCEPTION_DISKFMT = 32785;//Ӳ�̸�ʽ��
+
+        /********************Ԥ���ص�����*********************/
+        public const int NET_DVR_SYSHEAD = 1;//ϵͳͷ����
+        public const int NET_DVR_STREAMDATA = 2;//��Ƶ�����ݣ�����������������Ƶ�ֿ�����Ƶ�����ݣ�
+        public const int NET_DVR_AUDIOSTREAMDATA = 3;//��Ƶ������
+        public const int NET_DVR_STD_VIDEODATA = 4;//��׼��Ƶ������
+        public const int NET_DVR_STD_AUDIODATA = 5;//��׼��Ƶ������
+
+        //�ص�Ԥ���е�״̬����Ϣ
+        public const int NET_DVR_REALPLAYEXCEPTION = 111;//Ԥ���쳣
+        public const int NET_DVR_REALPLAYNETCLOSE = 112;//Ԥ��ʱ���ӶϿ�
+        public const int NET_DVR_REALPLAY5SNODATA = 113;//Ԥ��5sû���յ�����
+        public const int NET_DVR_REALPLAYRECONNECT = 114;//Ԥ������
+
+        /********************�طŻص�����*********************/
+        public const int NET_DVR_PLAYBACKOVER = 101;//�ط����ݲ������
+        public const int NET_DVR_PLAYBACKEXCEPTION = 102;//�ط��쳣
+        public const int NET_DVR_PLAYBACKNETCLOSE = 103;//�ط�ʱ�����ӶϿ�
+        public const int NET_DVR_PLAYBACK5SNODATA = 104;//�ط�5sû���յ�����
+
+        /*********************�ص��������� end************************/
+        //�豸�ͺ�(DVR����)
+        /* �豸���� */
+        public const int DVR = 1;/*����δ�����dvr���ͷ���NETRET_DVR*/
+        public const int ATMDVR = 2;/*atm dvr*/
+        public const int DVS = 3;/*DVS*/
+        public const int DEC = 4;/* 6001D */
+        public const int ENC_DEC = 5;/* 6001F */
+        public const int DVR_HC = 6;/*8000HC*/
+        public const int DVR_HT = 7;/*8000HT*/
+        public const int DVR_HF = 8;/*8000HF*/
+        public const int DVR_HS = 9;/* 8000HS DVR(no audio) */
+        public const int DVR_HTS = 10; /* 8016HTS DVR(no audio) */
+        public const int DVR_HB = 11; /* HB DVR(SATA HD) */
+        public const int DVR_HCS = 12; /* 8000HCS DVR */
+        public const int DVS_A = 13; /* ��ATAӲ�̵�DVS */
+        public const int DVR_HC_S = 14; /* 8000HC-S */
+        public const int DVR_HT_S = 15;/* 8000HT-S */
+        public const int DVR_HF_S = 16;/* 8000HF-S */
+        public const int DVR_HS_S = 17; /* 8000HS-S */
+        public const int ATMDVR_S = 18;/* ATM-S */
+        public const int LOWCOST_DVR = 19;/*7000Hϵ��*/
+        public const int DEC_MAT = 20; /*��·������*/
+        public const int DVR_MOBILE = 21;/* mobile DVR */
+        public const int DVR_HD_S = 22;   /* 8000HD-S */
+        public const int DVR_HD_SL = 23;/* 8000HD-SL */
+        public const int DVR_HC_SL = 24;/* 8000HC-SL */
+        public const int DVR_HS_ST = 25;/* 8000HS_ST */
+        public const int DVS_HW = 26; /* 6000HW */
+        public const int DS630X_D = 27; /* ��·������ */
+        public const int IPCAM = 30;/*IP �����*/
+        public const int MEGA_IPCAM = 31;/*X52MFϵ��,752MF,852MF*/
+        public const int IPCAM_X62MF = 32;/*X62MFϵ�пɽ���9000�豸,762MF,862MF*/
+        public const int IPDOME = 40; /*IP �������*/
+        public const int IPDOME_MEGA200 = 41;/*IP 200��������*/
+        public const int IPDOME_MEGA130 = 42;/*IP 130��������*/
+        public const int IPMOD = 50;/*IP ģ��*/
+        public const int DS71XX_H = 71;/* DS71XXH_S */
+        public const int DS72XX_H_S = 72;/* DS72XXH_S */
+        public const int DS73XX_H_S = 73;/* DS73XXH_S */
+        public const int DS76XX_H_S = 76;/* DS76XX_H_S */
+        public const int DS81XX_HS_S = 81;/* DS81XX_HS_S */
+        public const int DS81XX_HL_S = 82;/* DS81XX_HL_S */
+        public const int DS81XX_HC_S = 83;/* DS81XX_HC_S */
+        public const int DS81XX_HD_S = 84;/* DS81XX_HD_S */
+        public const int DS81XX_HE_S = 85;/* DS81XX_HE_S */
+        public const int DS81XX_HF_S = 86;/* DS81XX_HF_S */
+        public const int DS81XX_AH_S = 87;/* DS81XX_AH_S */
+        public const int DS81XX_AHF_S = 88;/* DS81XX_AHF_S */
+        public const int DS90XX_HF_S = 90;  /*DS90XX_HF_S*/
+        public const int DS91XX_HF_S = 91;  /*DS91XX_HF_S*/
+        public const int DS91XX_HD_S = 92; /*91XXHD-S(MD)*/
+        /**********************�豸���� end***********************/
+
+        /**********************���������� begin***********************/
+        public const int DEVICE_SOFTHARDWARE_ABILITY = 0x001;
+        public const int DEVICE_NETWORK_ABILITY = 0x002;
+        public const int DEVICE_ENCODE_ALL_ABILITY_V20 = 0x008;
+        public const int IPC_FRONT_PARAMETER_V20 = 0x009;
+        public const int DEVICE_RAID_ABILITY = 0x007;
+        public const int DEVICE_ALARM_ABILITY = 0x00a;
+        public const int DEVICE_DYNCHAN_ABILITY = 0x00b;
+        public const int DEVICE_USER_ABILITY = 0x00c;
+        public const int DEVICE_NETAPP_ABILITY = 0x00d;
+        public const int DEVICE_VIDEOPIC_ABILITY = 0x00e;
+        public const int DEVICE_JPEG_CAP_ABILITY = 0x00f;
+        public const int DEVICE_SERIAL_ABILITY = 0x010;
+        public const int DEVICE_ABILITY_INFO = 0x011;
+        /**********************���������� end***********************/
+
+        /*************************************************
+        �Ž��¼�����
+        **************************************************/
+        #region acs event upload
+
+        /* Alarm */
+        // Main Type
+        //public const int MAJOR_ALARM = 0x1;
+        // Hypo- Type
+        public const int MINOR_ALARMIN_SHORT_CIRCUIT = 0x400; // region short circuit 
+        public const int MINOR_ALARMIN_BROKEN_CIRCUIT = 0x401; // region broken circuit
+        public const int MINOR_ALARMIN_EXCEPTION = 0x402; // region exception 
+        public const int MINOR_ALARMIN_RESUME = 0x403; // region resume 
+        public const int MINOR_HOST_DESMANTLE_ALARM = 0x404; // host desmantle alarm
+        public const int MINOR_HOST_DESMANTLE_RESUME = 0x405; //  host desmantle resume
+        public const int MINOR_CARD_READER_DESMANTLE_ALARM = 0x406; // card reader desmantle alarm 
+        public const int MINOR_CARD_READER_DESMANTLE_RESUME = 0x407; // card reader desmantle resume
+        public const int MINOR_CASE_SENSOR_ALARM = 0x408; // case sensor alarm 
+        public const int MINOR_CASE_SENSOR_RESUME = 0x409; // case sensor resume 
+        public const int MINOR_STRESS_ALARM = 0x40a; // stress alarm 
+        public const int MINOR_OFFLINE_ECENT_NEARLY_FULL = 0x40b; // offline ecent nearly full 
+        public const int MINOR_CARD_MAX_AUTHENTICATE_FAIL = 0x40c; // card max authenticate fall 
+        public const int MINOR_SD_CARD_FULL = 0x40d; // SD card is full
+        public const int MINOR_LINKAGE_CAPTURE_PIC = 0x40e; // lingage capture picture
+        public const int MINOR_SECURITY_MODULE_DESMANTLE_ALARM = 0x40f;  //Door control security module desmantle alarm
+        public const int MINOR_SECURITY_MODULE_DESMANTLE_RESUME = 0x410;  //Door control security module desmantle resume
+        public const int MINOR_POS_START_ALARM = 0x411; // POS Start
+        public const int MINOR_POS_END_ALARM = 0x412; // POS end
+        public const int MINOR_FACE_IMAGE_QUALITY_LOW = 0x413; // face image quality low
+        public const int MINOR_FINGE_RPRINT_QUALITY_LOW = 0x414; // finger print quality low
+        public const int MINOR_FIRE_IMPORT_SHORT_CIRCUIT = 0x415; // Fire import short circuit
+        public const int MINOR_FIRE_IMPORT_BROKEN_CIRCUIT = 0x416; // Fire import broken circuit
+        public const int MINOR_FIRE_IMPORT_RESUME = 0x417; // Fire import resume
+        public const int MINOR_FIRE_BUTTON_TRIGGER = 0x418; // fire button trigger
+        public const int MINOR_FIRE_BUTTON_RESUME = 0x419; // fire button resume
+        public const int MINOR_MAINTENANCE_BUTTON_TRIGGER = 0x41a; // maintenance button trigger
+        public const int MINOR_MAINTENANCE_BUTTON_RESUME = 0x41b; // maintenance button resume
+        public const int MINOR_EMERGENCY_BUTTON_TRIGGER = 0x41c; // emergency button trigger
+        public const int MINOR_EMERGENCY_BUTTON_RESUME = 0x41d; // emergency button resume
+        public const int MINOR_DISTRACT_CONTROLLER_ALARM = 0x41e; // distract controller alarm
+        public const int MINOR_DISTRACT_CONTROLLER_RESUME = 0x41f; // distract controller resume
+        public const int MINOR_CHANNEL_CONTROLLER_DESMANTLE_ALARM = 0x422; //channel controller desmantle alarm
+        public const int MINOR_CHANNEL_CONTROLLER_DESMANTLE_RESUME = 0x423; //channel controller desmantle resume
+        public const int MINOR_CHANNEL_CONTROLLER_FIRE_IMPORT_ALARM = 0x424; //channel controller fire import alarm
+        public const int MINOR_CHANNEL_CONTROLLER_FIRE_IMPORT_RESUME = 0x425;  //channel controller fire import resume
+        public const int MINOR_PRINTER_OUT_OF_PAPER = 0x440;  //printer no paper
+        public const int MINOR_LEGAL_EVENT_NEARLY_FULL = 0x442;  //Legal event nearly full
+
+        /* Exception*/
+        // Main Type
+        //public const int MAJOR_EXCEPTION = 0x2;
+        // Hypo- Type
+
+        //public const int MINOR_NET_BROKEN = 0x27; // Network disconnected 
+        public const int MINOR_RS485_DEVICE_ABNORMAL = 0x3a; // RS485 connect status exception
+        public const int MINOR_RS485_DEVICE_REVERT = 0x3b; // RS485 connect status exception recovery
+
+        public const int MINOR_DEV_POWER_ON = 0x400; // device power on
+        public const int MINOR_DEV_POWER_OFF = 0x401; // device power off
+        public const int MINOR_WATCH_DOG_RESET = 0x402; // watch dog reset 
+        public const int MINOR_LOW_BATTERY = 0x403; // low battery 
+        public const int MINOR_BATTERY_RESUME = 0x404; // battery resume
+        public const int MINOR_AC_OFF = 0x405; // AC off
+        public const int MINOR_AC_RESUME = 0x406; // AC resume 
+        public const int MINOR_NET_RESUME = 0x407; // Net resume
+        public const int MINOR_FLASH_ABNORMAL = 0x408; // FLASH abnormal 
+        public const int MINOR_CARD_READER_OFFLINE = 0x409; // card reader offline 
+        public const int MINOR_CARD_READER_RESUME = 0x40a; // card reader resume 
+        public const int MINOR_INDICATOR_LIGHT_OFF = 0x40b; // Indicator Light Off
+        public const int MINOR_INDICATOR_LIGHT_RESUME = 0x40c; // Indicator Light Resume
+        public const int MINOR_CHANNEL_CONTROLLER_OFF = 0x40d; // channel controller off
+        public const int MINOR_CHANNEL_CONTROLLER_RESUME = 0x40e; // channel controller resume
+        public const int MINOR_SECURITY_MODULE_OFF = 0x40f; // Door control security module off
+        public const int MINOR_SECURITY_MODULE_RESUME = 0x410; // Door control security module resume
+        public const int MINOR_BATTERY_ELECTRIC_LOW = 0x411; // battery electric low
+        public const int MINOR_BATTERY_ELECTRIC_RESUME = 0x412; // battery electric resume
+        public const int MINOR_LOCAL_CONTROL_NET_BROKEN = 0x413; // Local control net broken
+        public const int MINOR_LOCAL_CONTROL_NET_RSUME = 0x414; // Local control net resume
+        public const int MINOR_MASTER_RS485_LOOPNODE_BROKEN = 0x415; // Master RS485 loop node broken
+        public const int MINOR_MASTER_RS485_LOOPNODE_RESUME = 0x416; // Master RS485 loop node resume
+        public const int MINOR_LOCAL_CONTROL_OFFLINE = 0x417; // Local control offline
+        public const int MINOR_LOCAL_CONTROL_RESUME = 0x418; // Local control resume
+        public const int MINOR_LOCAL_DOWNSIDE_RS485_LOOPNODE_BROKEN = 0x419; // Local downside RS485 loop node broken
+        public const int MINOR_LOCAL_DOWNSIDE_RS485_LOOPNODE_RESUME = 0x41a; // Local downside RS485 loop node resume
+        public const int MINOR_DISTRACT_CONTROLLER_ONLINE = 0x41b; // distract controller online
+        public const int MINOR_DISTRACT_CONTROLLER_OFFLINE = 0x41c; // distract controller offline
+        public const int MINOR_ID_CARD_READER_NOT_CONNECT = 0x41d; // Id card reader not connected(intelligent dedicated)
+        public const int MINOR_ID_CARD_READER_RESUME = 0x41e; //Id card reader connection restored(intelligent dedicated)
+        public const int MINOR_FINGER_PRINT_MODULE_NOT_CONNECT = 0x41f; // fingerprint module is not connected(intelligent dedicated)
+        public const int MINOR_FINGER_PRINT_MODULE_RESUME = 0x420; // The fingerprint module connection restored(intelligent dedicated)
+        public const int MINOR_CAMERA_NOT_CONNECT = 0x421; // Camera not connected
+        public const int MINOR_CAMERA_RESUME = 0x422; // Camera connection restored
+        public const int MINOR_COM_NOT_CONNECT = 0x423; // COM not connected
+        public const int MINOR_COM_RESUME = 0x424;// COM connection restored
+        public const int MINOR_DEVICE_NOT_AUTHORIZE = 0x425; // device are not authorized
+        public const int MINOR_PEOPLE_AND_ID_CARD_DEVICE_ONLINE = 0x426; // people and ID card device online
+        public const int MINOR_PEOPLE_AND_ID_CARD_DEVICE_OFFLINE = 0x427;// people and ID card device offline
+        public const int MINOR_LOCAL_LOGIN_LOCK = 0x428; // local login lock
+        public const int MINOR_LOCAL_LOGIN_UNLOCK = 0x429; //local login unlock
+        public const int MINOR_SUBMARINEBACK_COMM_BREAK = 0x42a;  //submarineback communicate break
+        public const int MINOR_SUBMARINEBACK_COMM_RESUME = 0x42b;  //submarineback communicate resume
+        public const int MINOR_MOTOR_SENSOR_EXCEPTION = 0x42c;  //motor sensor exception
+        public const int MINOR_CAN_BUS_EXCEPTION = 0x42d;  //can bus exception
+        public const int MINOR_CAN_BUS_RESUME = 0x42e;  //can bus resume
+        public const int MINOR_GATE_TEMPERATURE_OVERRUN = 0x42f; //gate temperature over run
+        public const int MINOR_IR_EMITTER_EXCEPTION = 0x430; //IR emitter exception
+        public const int MINOR_IR_EMITTER_RESUME = 0x431;  //IR emitter resume
+        public const int MINOR_LAMP_BOARD_COMM_EXCEPTION = 0x432;  //lamp board communicate exception
+        public const int MINOR_LAMP_BOARD_COMM_RESUME = 0x433;  //lamp board communicate resume
+        public const int MINOR_IR_ADAPTOR_COMM_EXCEPTION = 0x434; //IR adaptor communicate exception
+        public const int MINOR_IR_ADAPTOR_COMM_RESUME = 0x435;  //IR adaptor communicate resume
+        public const int MINOR_PRINTER_ONLINE = 0x436; //printer online
+        public const int MINOR_PRINTER_OFFLINE = 0x437; //printer offline
+        public const int MINOR_4G_MOUDLE_ONLINE = 0x438; //4G module online
+        public const int MINOR_4G_MOUDLE_OFFLINE = 0x439; //4G module offline
+
+
+        /* Operation  */
+        // Main Type
+        //public const int MAJOR_OPERATION = 0x3;
+
+        // Hypo- Type
+        //public const int MINOR_LOCAL_UPGRADE = 0x5a; // Upgrade  (local)
+        //public const int MINOR_REMOTE_LOGIN = 0x70; // Login  (remote)
+        //public const int MINOR_REMOTE_LOGOUT = 0x71; // Logout   (remote)
+        //public const int MINOR_REMOTE_ARM = 0x79; // On guard   (remote)
+        //public const int MINOR_REMOTE_DISARM = 0x7a; // Disarm   (remote)
+        //public const int MINOR_REMOTE_REBOOT = 0x7b; // Reboot   (remote)
+        //public const int MINOR_REMOTE_UPGRADE = 0x7e; // upgrade  (remote)
+        //public const int MINOR_REMOTE_CFGFILE_OUTPUT = 0x86; // Export Configuration   (remote) 
+        //public const int MINOR_REMOTE_CFGFILE_INTPUT = 0x87; // Import Configuration  (remote) 
+        //public const int MINOR_REMOTE_ALARMOUT_OPEN_MAN = 0xd6; // remote mamual open alarmout 
+        //public const int MINOR_REMOTE_ALARMOUT_CLOSE_MAN = 0xd7; // remote mamual close alarmout 
+
+        public const int MINOR_REMOTE_OPEN_DOOR = 0x400; // remote open door 
+        public const int MINOR_REMOTE_CLOSE_DOOR = 0x401; // remote close door (controlled) 
+        public const int MINOR_REMOTE_ALWAYS_OPEN = 0x402; // remote always open door (free) 
+        public const int MINOR_REMOTE_ALWAYS_CLOSE = 0x403; // remote always close door (forbiden)
+        public const int MINOR_REMOTE_CHECK_TIME = 0x404; // remote check time 
+        public const int MINOR_NTP_CHECK_TIME = 0x405; // ntp check time 
+        public const int MINOR_REMOTE_CLEAR_CARD = 0x406; // remote clear card 
+        public const int MINOR_REMOTE_RESTORE_CFG = 0x407; // remote restore configure 
+        public const int MINOR_ALARMIN_ARM = 0x408; // alarm in arm 
+        public const int MINOR_ALARMIN_DISARM = 0x409; // alarm in disarm 
+        public const int MINOR_LOCAL_RESTORE_CFG = 0x40a; // local configure restore 
+        public const int MINOR_REMOTE_CAPTURE_PIC = 0x40b; // remote capture picture 
+        public const int MINOR_MOD_NET_REPORT_CFG = 0x40c; // modify net report cfg 
+        public const int MINOR_MOD_GPRS_REPORT_PARAM = 0x40d; // modify GPRS report param 
+        public const int MINOR_MOD_REPORT_GROUP_PARAM = 0x40e; // modify report group param 
+        public const int MINOR_UNLOCK_PASSWORD_OPEN_DOOR = 0x40f; // unlock password open door 
+        public const int MINOR_AUTO_RENUMBER = 0x410; // auto renumber 
+        public const int MINOR_AUTO_COMPLEMENT_NUMBER = 0x411; // auto complement number 
+        public const int MINOR_NORMAL_CFGFILE_INPUT = 0x412; // normal cfg file input 
+        public const int MINOR_NORMAL_CFGFILE_OUTTPUT = 0x413; // normal cfg file output 
+        public const int MINOR_CARD_RIGHT_INPUT = 0x414; // card right input 
+        public const int MINOR_CARD_RIGHT_OUTTPUT = 0x415; // card right output 
+        public const int MINOR_LOCAL_USB_UPGRADE = 0x416; // local USB upgrade 
+        public const int MINOR_REMOTE_VISITOR_CALL_LADDER = 0x417; // visitor call ladder 
+        public const int MINOR_REMOTE_HOUSEHOLD_CALL_LADDER = 0x418; // household call ladder 
+        public const int MINOR_REMOTE_ACTUAL_GUARD = 0x419;  //remote actual guard
+        public const int MINOR_REMOTE_ACTUAL_UNGUARD = 0x41a;  //remote actual unguard
+        public const int MINOR_REMOTE_CONTROL_NOT_CODE_OPER_FAILED = 0x41b; //remote control not code operate failed
+        public const int MINOR_REMOTE_CONTROL_CLOSE_DOOR = 0x41c; //remote control close door
+        public const int MINOR_REMOTE_CONTROL_OPEN_DOOR = 0x41d; //remote control open door
+        public const int MINOR_REMOTE_CONTROL_ALWAYS_OPEN_DOOR = 0x41e; //remote control always open door
+
+        /* Additional Log Info*/
+        // Main Type
+        public const int MAJOR_EVENT = 0x5;/*event*/
+        // Hypo- Type
+        public const int MINOR_LEGAL_CARD_PASS = 0x01; // legal card pass
+        public const int MINOR_CARD_AND_PSW_PASS = 0x02; // swipe and password pass
+        public const int MINOR_CARD_AND_PSW_FAIL = 0x03; // swipe and password fail
+        public const int MINOR_CARD_AND_PSW_TIMEOUT = 0x04; // swipe and password timeout
+        public const int MINOR_CARD_AND_PSW_OVER_TIME = 0x05; // swipe and password over time
+        public const int MINOR_CARD_NO_RIGHT = 0x06; // card no right 
+        public const int MINOR_CARD_INVALID_PERIOD = 0x07; // invalid period 
+        public const int MINOR_CARD_OUT_OF_DATE = 0x08; // card out of date
+        public const int MINOR_INVALID_CARD = 0x09; // invalid card 
+        public const int MINOR_ANTI_SNEAK_FAIL = 0x0a; // anti sneak fail 
+        public const int MINOR_INTERLOCK_DOOR_NOT_CLOSE = 0x0b; // interlock door doesn't close
+        public const int MINOR_NOT_BELONG_MULTI_GROUP = 0x0c; // card no belong multi group 
+        public const int MINOR_INVALID_MULTI_VERIFY_PERIOD = 0x0d; // invalid multi verify period 
+        public const int MINOR_MULTI_VERIFY_SUPER_RIGHT_FAIL = 0x0e; // have no super right in multi verify mode 
+        public const int MINOR_MULTI_VERIFY_REMOTE_RIGHT_FAIL = 0x0f; // have no remote right in multi verify mode 
+        public const int MINOR_MULTI_VERIFY_SUCCESS = 0x10; // success in multi verify mode 
+        public const int MINOR_LEADER_CARD_OPEN_BEGIN = 0x11; // leader card begin to open
+        public const int MINOR_LEADER_CARD_OPEN_END = 0x12; // leader card end to open 
+        public const int MINOR_ALWAYS_OPEN_BEGIN = 0x13; // always open begin
+        public const int MINOR_ALWAYS_OPEN_END = 0x14; // always open end
+        public const int MINOR_LOCK_OPEN = 0x15; // lock open
+        public const int MINOR_LOCK_CLOSE = 0x16; // lock close
+        public const int MINOR_DOOR_BUTTON_PRESS = 0x17; // press door open button 
+        public const int MINOR_DOOR_BUTTON_RELEASE = 0x18; // release door open button 
+        public const int MINOR_DOOR_OPEN_NORMAL = 0x19; // door open normal 
+        public const int MINOR_DOOR_CLOSE_NORMAL = 0x1a; // door close normal 
+        public const int MINOR_DOOR_OPEN_ABNORMAL = 0x1b; // open door abnormal 
+        public const int MINOR_DOOR_OPEN_TIMEOUT = 0x1c; // open door timeout 
+        public const int MINOR_ALARMOUT_ON = 0x1d; // alarm out turn on 
+        public const int MINOR_ALARMOUT_OFF = 0x1e; // alarm out turn off 
+        public const int MINOR_ALWAYS_CLOSE_BEGIN = 0x1f; // always close begin 
+        public const int MINOR_ALWAYS_CLOSE_END = 0x20; // always close end 
+        public const int MINOR_MULTI_VERIFY_NEED_REMOTE_OPEN = 0x21; // need remote open in multi verify mode 
+        public const int MINOR_MULTI_VERIFY_SUPERPASSWD_VERIFY_SUCCESS = 0x22; // superpasswd verify success in multi verify mode 
+        public const int MINOR_MULTI_VERIFY_REPEAT_VERIFY = 0x23; // repeat verify in multi verify mode 
+        public const int MINOR_MULTI_VERIFY_TIMEOUT = 0x24; // timeout in multi verify mode 
+        public const int MINOR_DOORBELL_RINGING = 0x25; // doorbell ringing 
+        public const int MINOR_FINGERPRINT_COMPARE_PASS = 0x26; // fingerprint compare pass 
+        public const int MINOR_FINGERPRINT_COMPARE_FAIL = 0x27; // fingerprint compare fail 
+        public const int MINOR_CARD_FINGERPRINT_VERIFY_PASS = 0x28; // card and fingerprint verify pass 
+        public const int MINOR_CARD_FINGERPRINT_VERIFY_FAIL = 0x29; // card and fingerprint verify fail 
+        public const int MINOR_CARD_FINGERPRINT_VERIFY_TIMEOUT = 0x2a; // card and fingerprint verify timeout 
+        public const int MINOR_CARD_FINGERPRINT_PASSWD_VERIFY_PASS = 0x2b; // card and fingerprint and passwd verify pass 
+        public const int MINOR_CARD_FINGERPRINT_PASSWD_VERIFY_FAIL = 0x2c; // card and fingerprint and passwd verify fail 
+        public const int MINOR_CARD_FINGERPRINT_PASSWD_VERIFY_TIMEOUT = 0x2d; // card and fingerprint and passwd verify timeout 
+        public const int MINOR_FINGERPRINT_PASSWD_VERIFY_PASS = 0x2e; // fingerprint and passwd verify pass 
+        public const int MINOR_FINGERPRINT_PASSWD_VERIFY_FAIL = 0x2f; // fingerprint and passwd verify fail 
+        public const int MINOR_FINGERPRINT_PASSWD_VERIFY_TIMEOUT = 0x30; // fingerprint and passwd verify timeout 
+        public const int MINOR_FINGERPRINT_INEXISTENCE = 0x31; // fingerprint inexistence 
+        public const int MINOR_CARD_PLATFORM_VERIFY = 0x32; // card platform verify 
+        public const int MINOR_CALL_CENTER = 0x33; // call center 
+        public const int MINOR_FIRE_RELAY_TURN_ON_DOOR_ALWAYS_OPEN = 0x34; // fire relay turn on door always open 
+        public const int MINOR_FIRE_RELAY_RECOVER_DOOR_RECOVER_NORMAL = 0x35; // fire relay recover door recover normal 
+        public const int MINOR_FACE_AND_FP_VERIFY_PASS = 0x36; // face and finger print verify pass 
+        public const int MINOR_FACE_AND_FP_VERIFY_FAIL = 0x37; // face and finger print verify fail 
+        public const int MINOR_FACE_AND_FP_VERIFY_TIMEOUT = 0x38; // face and finger print verify timeout 
+        public const int MINOR_FACE_AND_PW_VERIFY_PASS = 0x39; // face and password verify pass 
+        public const int MINOR_FACE_AND_PW_VERIFY_FAIL = 0x3a; // face and password verify fail 
+        public const int MINOR_FACE_AND_PW_VERIFY_TIMEOUT = 0x3b; // face and password verify timeout 
+        public const int MINOR_FACE_AND_CARD_VERIFY_PASS = 0x3c; // face and card verify pass 
+        public const int MINOR_FACE_AND_CARD_VERIFY_FAIL = 0x3d; // face and card verify fail 
+        public const int MINOR_FACE_AND_CARD_VERIFY_TIMEOUT = 0x3e; // face and card verify timeout 
+        public const int MINOR_FACE_AND_PW_AND_FP_VERIFY_PASS = 0x3f; // face and password and finger print verify pass 
+        public const int MINOR_FACE_AND_PW_AND_FP_VERIFY_FAIL = 0x40; // face and password and finger print verify fail 
+        public const int MINOR_FACE_AND_PW_AND_FP_VERIFY_TIMEOUT = 0x41; // face and password and finger print verify timeout 
+        public const int MINOR_FACE_CARD_AND_FP_VERIFY_PASS = 0x42; // face and card and finger print verify pass 
+        public const int MINOR_FACE_CARD_AND_FP_VERIFY_FAIL = 0x43; // face and card and finger print verify fail 
+        public const int MINOR_FACE_CARD_AND_FP_VERIFY_TIMEOUT = 0x44; // face and card and finger print verify timeout 
+        public const int MINOR_EMPLOYEENO_AND_FP_VERIFY_PASS = 0x45; // employee and finger print verify pass 
+        public const int MINOR_EMPLOYEENO_AND_FP_VERIFY_FAIL = 0x46; // employee and finger print verify fail 
+        public const int MINOR_EMPLOYEENO_AND_FP_VERIFY_TIMEOUT = 0x47; // employee and finger print verify timeout 
+        public const int MINOR_EMPLOYEENO_AND_FP_AND_PW_VERIFY_PASS = 0x48; // employee and finger print and password verify pass 
+        public const int MINOR_EMPLOYEENO_AND_FP_AND_PW_VERIFY_FAIL = 0x49; // employee and finger print and password verify fail 
+        public const int MINOR_EMPLOYEENO_AND_FP_AND_PW_VERIFY_TIMEOUT = 0x4a; // employee and finger print and password verify timeout
+        public const int MINOR_FACE_VERIFY_PASS = 0x4b; // face verify pass 
+        public const int MINOR_FACE_VERIFY_FAIL = 0x4c; // face verify fail 
+        public const int MINOR_EMPLOYEENO_AND_FACE_VERIFY_PASS = 0x4d; // employee no and face verify pass 
+        public const int MINOR_EMPLOYEENO_AND_FACE_VERIFY_FAIL = 0x4e; // employee no and face verify fail 
+        public const int MINOR_EMPLOYEENO_AND_FACE_VERIFY_TIMEOUT = 0x4f; // employee no and face verify time out 
+        public const int MINOR_FACE_RECOGNIZE_FAIL = 0x50; // face recognize fail 
+        public const int MINOR_FIRSTCARD_AUTHORIZE_BEGIN = 0x51; // first card authorize begin 
+        public const int MINOR_FIRSTCARD_AUTHORIZE_END = 0x52; // first card authorize end 
+        public const int MINOR_DOORLOCK_INPUT_SHORT_CIRCUIT = 0x53; // door lock input short circuit 
+        public const int MINOR_DOORLOCK_INPUT_BROKEN_CIRCUIT = 0x54; // door lock input broken circuit 
+        public const int MINOR_DOORLOCK_INPUT_EXCEPTION = 0x55; // door lock input exception 
+        public const int MINOR_DOORCONTACT_INPUT_SHORT_CIRCUIT = 0x56; // door contact input short circuit 
+        public const int MINOR_DOORCONTACT_INPUT_BROKEN_CIRCUIT = 0x57; // door contact input broken circuit 
+        public const int MINOR_DOORCONTACT_INPUT_EXCEPTION = 0x58; // door contact input exception 
+        public const int MINOR_OPENBUTTON_INPUT_SHORT_CIRCUIT = 0x59; // open button input short circuit 
+        public const int MINOR_OPENBUTTON_INPUT_BROKEN_CIRCUIT = 0x5a; // open button input broken circuit 
+        public const int MINOR_OPENBUTTON_INPUT_EXCEPTION = 0x5b; // open button input exception 
+        public const int MINOR_DOORLOCK_OPEN_EXCEPTION = 0x5c; // door lock open exception 
+        public const int MINOR_DOORLOCK_OPEN_TIMEOUT = 0x5d; // door lock open timeout 
+        public const int MINOR_FIRSTCARD_OPEN_WITHOUT_AUTHORIZE = 0x5e; // first card open without authorize 
+        public const int MINOR_CALL_LADDER_RELAY_BREAK = 0x5f; // call ladder relay break 
+        public const int MINOR_CALL_LADDER_RELAY_CLOSE = 0x60; // call ladder relay close 
+        public const int MINOR_AUTO_KEY_RELAY_BREAK = 0x61; // auto key relay break 
+        public const int MINOR_AUTO_KEY_RELAY_CLOSE = 0x62; // auto key relay close 
+        public const int MINOR_KEY_CONTROL_RELAY_BREAK = 0x63; // key control relay break 
+        public const int MINOR_KEY_CONTROL_RELAY_CLOSE = 0x64; // key control relay close 
+        public const int MINOR_EMPLOYEENO_AND_PW_PASS = 0x65; // minor employee no and password pass 
+        public const int MINOR_EMPLOYEENO_AND_PW_FAIL = 0x66; // minor employee no and password fail 
+        public const int MINOR_EMPLOYEENO_AND_PW_TIMEOUT = 0x67; // minor employee no and password timeout 
+        public const int MINOR_HUMAN_DETECT_FAIL = 0x68; // human detect fail 
+        public const int MINOR_PEOPLE_AND_ID_CARD_COMPARE_PASS = 0x69; // the comparison with people and id card success 
+        public const int MINOR_PEOPLE_AND_ID_CARD_COMPARE_FAIL = 0x70; // the comparison with people and id card failed 
+        public const int MINOR_CERTIFICATE_BLOCKLIST = 0x71; // block list 
+        public const int MINOR_LEGAL_MESSAGE = 0x72; // legal message 
+        public const int MINOR_ILLEGAL_MESSAGE = 0x73; // illegal messag 
+        public const int MINOR_MAC_DETECT = 0x74; // mac detect 
+        public const int MINOR_DOOR_OPEN_OR_DORMANT_FAIL = 0x75; //door open or dormant fail
+        public const int MINOR_AUTH_PLAN_DORMANT_FAIL = 0x76;  //auth plan dormant fail
+        public const int MINOR_CARD_ENCRYPT_VERIFY_FAIL = 0x77; //card encrypt verify fail
+        public const int MINOR_SUBMARINEBACK_REPLY_FAIL = 0x78;  //submarineback reply fail
+        public const int MINOR_DOOR_OPEN_OR_DORMANT_OPEN_FAIL = 0x82;  //door open or dormant open fail
+        public const int MINOR_DOOR_OPEN_OR_DORMANT_LINKAGE_OPEN_FAIL = 0x84; //door open or dormant linkage open fail
+        public const int MINOR_TRAILING = 0x85;  //trailing
+        public const int MINOR_HEART_BEAT = 0x83;  //heart beat event
+        public const int MINOR_REVERSE_ACCESS = 0x86; //reverse access
+        public const int MINOR_FORCE_ACCESS = 0x87; //force access
+        public const int MINOR_CLIMBING_OVER_GATE = 0x88; //climbing over gate
+        public const int MINOR_PASSING_TIMEOUT = 0x89;  //passing timeout
+        public const int MINOR_INTRUSION_ALARM = 0x8a;  //intrusion alarm
+        public const int MINOR_FREE_GATE_PASS_NOT_AUTH = 0x8b; //free gate pass not auth
+        public const int MINOR_DROP_ARM_BLOCK = 0x8c; //drop arm block
+        public const int MINOR_DROP_ARM_BLOCK_RESUME = 0x8d;  //drop arm block resume
+        public const int MINOR_LOCAL_FACE_MODELING_FAIL = 0x8e;  //device upgrade with module failed
+        public const int MINOR_STAY_EVENT = 0x8f;  //stay event
+        public const int MINOR_PASSWORD_MISMATCH = 0x97;  //password mismatch
+        public const int MINOR_EMPLOYEE_NO_NOT_EXIST = 0x98;  //employee no not exist
+        public const int MINOR_COMBINED_VERIFY_PASS = 0x99;  //combined verify pass
+        public const int MINOR_COMBINED_VERIFY_TIMEOUT = 0x9a;  //combined verify timeout
+        public const int MINOR_VERIFY_MODE_MISMATCH = 0x9b;  //verify mode mismatch
+        #endregion
+
+        /*************************************************
+        �������ýṹ������(����_V30Ϊ9000����)
+        **************************************************/
+        //Уʱ�ṹ����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_TIME
+        {
+            public int dwYear;
+            public int dwMonth;
+            public int dwDay;
+            public int dwHour;
+            public int dwMinute;
+            public int dwSecond;
+        }
+
+        //ʱ�����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_TIME_V30
+        {
+            public ushort wYear;
+            public byte byMonth;
+            public byte byDay;
+            public byte byHour;
+            public byte byMinute;
+            public byte bySecond;
+            public byte byRes;
+            public ushort wMilliSec;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_TIME_EX
+        {
+            public ushort wYear;
+            public byte byMonth;
+            public byte byDay;
+            public byte byHour;
+            public byte byMinute;
+            public byte bySecond;
+            public byte byRes;
+        }
+
+        //ʱ���(�ӽṹ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SCHEDTIME
+        {
+            public byte byStartHour;//��ʼʱ��
+            public byte byStartMin;//��ʼʱ��
+            public byte byStopHour;//����ʱ��
+            public byte byStopMin;//����ʱ��
+        }
+
+        /*�豸�������쳣������ʽ*/
+        public const int NOACTION = 0x0;/*����Ӧ*/
+        public const int WARNONMONITOR = 0x1;/*��ʾ���Ͼ���*/
+        public const int WARNONAUDIOOUT = 0x2;/*��������*/
+        public const int UPTOCENTER = 0x4;/*�ϴ�����*/
+        public const int TRIGGERALARMOUT = 0x8;/*�����������*/
+        public const int TRIGGERCATPIC = 0x10;/*����ץͼ���ϴ�E-mail*/
+        public const int SEND_PIC_FTP = 0x200;  /*ץͼ���ϴ�ftp*/        
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_STRUCTHEAD
+        {
+            public ushort wLength;  //�ṹ����
+            public byte byVersion;	/*�ߵ�4λ�ֱ�����ߵͰ汾���������ݰ汾�ͳ��Ƚ�����չ����ͬ�İ汾�ij��Ƚ�������*/
+            public byte byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_HANDLEEXCEPTION_V41
+        {
+            public uint dwHandleType;/*������ʽ,������ʽ��"��"���*/
+            /*0x00: ����Ӧ*/
+            /*0x01: ��ʾ���Ͼ���*/
+            /*0x02: ��������*/
+            /*0x04: �ϴ�����*/
+            /*0x08: �����������*/
+            /*0x10: ����JPRGץͼ���ϴ�Email*/
+            /*0x20: �������ⱨ��������*/
+            /*0x40: �������ӵ�ͼ(Ŀǰֻ��PCNVR֧��)*/
+            /*0x200: ץͼ���ϴ�FTP*/ 
+            public uint dwMaxRelAlarmOutChanNum; //�����ı������ͨ������ֻ�������֧����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ALARMOUT_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwRelAlarmOut; //��������ͨ��      
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;           //����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_HANDLEEXCEPTION_V40
+        {
+            public uint dwHandleType;/*������ʽ,������ʽ��"��"���*/
+            /*0x00: ����Ӧ*/
+            /*0x01: ��ʾ���Ͼ���*/
+            /*0x02: ��������*/
+            /*0x04: �ϴ�����*/
+            /*0x08: �����������*/
+            /*0x10: ����JPRGץͼ���ϴ�Email*/
+            /*0x20: �������ⱨ��������*/
+            /*0x40: �������ӵ�ͼ(Ŀǰֻ��PCNVR֧��)*/
+            /*0x200: ץͼ���ϴ�FTP*/ 
+            public uint dwMaxRelAlarmOutChanNum; //�����ı������ͨ������ֻ�������֧����
+            public uint dwRelAlarmOutChanNum; //�����ı������ͨ���� ʵ��֧����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwRelAlarmOut; //��������ͨ��      
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;           //����
+        }
+
+        //�������쳣�����ṹ(�ӽṹ)(�ദʹ��)(9000��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_HANDLEEXCEPTION_V30
+        {
+            public uint dwHandleType;/*������ʽ,������ʽ��"��"���*/
+            /*0x00: ����Ӧ*/
+            /*0x01: ��ʾ���Ͼ���*/
+            /*0x02: ��������*/
+            /*0x04: �ϴ�����*/
+            /*0x08: �����������*/
+            /*0x10: ����JPRGץͼ���ϴ�Email*/
+            /*0x20: �������ⱨ��������*/
+            /*0x40: �������ӵ�ͼ(Ŀǰֻ��PCNVR֧��)*/
+            /*0x200: ץͼ���ϴ�FTP*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ALARMOUT_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRelAlarmOut;//�������������ͨ��,�������������,Ϊ1��ʾ���������
+        }
+
+        //�������쳣�����ṹ(�ӽṹ)(�ദʹ��)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_HANDLEEXCEPTION
+        {
+            public uint dwHandleType;/*������ʽ,������ʽ��"��"���*/
+            /*0x00: ����Ӧ*/
+            /*0x01: ��ʾ���Ͼ���*/
+            /*0x02: ��������*/
+            /*0x04: �ϴ�����*/
+            /*0x08: �����������*/
+            /*0x10: Jpegץͼ���ϴ�EMail*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ALARMOUT, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRelAlarmOut;//�������������ͨ��,�������������,Ϊ1��ʾ���������
+        }
+
+        //DVR�豸����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DEVICECFG
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sDVRName;//DVR����
+            public uint dwDVRID;//DVR ID,����ң���� //V1.4(0-99), V1.5(0-255)
+            public uint dwRecycleRecord;//�Ƿ�ѭ��¼��,0:����; 1:��
+            //���²��ɸ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = SERIALNO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sSerialNumber;//���к�
+            public uint dwSoftwareVersion;//�����汾��,��16λ�����汾,��16λ�Ǵΰ汾
+            public uint dwSoftwareBuildDate;//������������,0xYYYYMMDD
+            public uint dwDSPSoftwareVersion;//DSP�����汾,��16λ�����汾,��16λ�Ǵΰ汾
+            public uint dwDSPSoftwareBuildDate;// DSP������������,0xYYYYMMDD
+            public uint dwPanelVersion;// ǰ���汾,��16λ�����汾,��16λ�Ǵΰ汾
+            public uint dwHardwareVersion;// Ӳ���汾,��16λ�����汾,��16λ�Ǵΰ汾
+            public byte byAlarmInPortNum;//DVR�����������
+            public byte byAlarmOutPortNum;//DVR�����������
+            public byte byRS232Num;//DVR 232���ڸ���
+            public byte byRS485Num;//DVR 485���ڸ���
+            public byte byNetworkPortNum;//����ڸ���
+            public byte byDiskCtrlNum;//DVR Ӳ�̿���������
+            public byte byDiskNum;//DVR Ӳ�̸���
+            public byte byDVRType;//DVR����, 1:DVR 2:ATM DVR 3:DVS ......
+            public byte byChanNum;//DVR ͨ������
+            public byte byStartChan;//��ʼͨ����,����DVS-1,DVR - 1
+            public byte byDecordChans;//DVR ����·��
+            public byte byVGANum;//VGA�ڵĸ���
+            public byte byUSBNum;//USB�ڵĸ���
+            public byte byAuxoutNum;//���ڵĸ���
+            public byte byAudioNum;//�����ڵĸ���
+            public byte byIPChanNum;//�������ͨ����
+        }
+
+        /*IP��ַ*/
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_IPADDR
+        {
+
+            /// char[16]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] sIpV4;
+
+            /// BYTE[128]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128, ArraySubType = UnmanagedType.I1)]
+            public byte[] byIPv6;
+
+            public void Init()
+            {
+				sIpV4 = new byte[16];
+                byIPv6 = new byte[128];
+            }
+        }
+
+        /*�������ݽṹ(�ӽṹ)(9000��չ)*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ETHERNET_V30
+        {
+            public NET_DVR_IPADDR struDVRIP;//DVR IP��ַ
+            public NET_DVR_IPADDR struDVRIPMask;//DVR IP��ַ����
+            public uint dwNetInterface;//����ӿڣ�1-10MBase-T��2-10MBase-Tȫ˫����3-100MBase-TX��4-100Mȫ˫����5-10M/100M/1000M����Ӧ��6-1000Mȫ˫��
+            public ushort wDVRPort;//�˿ں�
+            public ushort wMTU;//����MTU���ã�Ĭ��1500��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MACADDR_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byMACAddr;// ������ַ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+		[StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ALARMHOST_NETPARAM
+        {
+            public uint dwSize;
+            public NET_DVR_IPADDR struIP;
+            public ushort wPort;
+            public byte byAddressType;    //0 - ������, 1 - ipv4/ipv6��ַ��2 - ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 1, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DOMAIN_NAME, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDomainName;
+            public byte byReportProtocol;        //1-private 2-NAL2300, 3-Ehome
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = ACCOUNTNUM_LEN_32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDevID; //Э��ΪNAL2300ʱ��Ч
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 7, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2; //GPRS�������������ڹ̶��ķ������Ͻ��еģ����Բ���Ҫ����������������ϢԤ��һЩ�ֶ�
+        }
+		
+		
+		
+        /*�������ݽṹ(�ӽṹ)*/
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_ETHERNET
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sDVRIP;//DVR IP��ַ
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sDVRIPMask;//DVR IP��ַ����
+            public uint dwNetInterface;//����ӿ� 1-10MBase-T 2-10MBase-Tȫ˫�� 3-100MBase-TX 4-100Mȫ˫�� 5-10M/100M����Ӧ
+            public ushort wDVRPort;//�˿ں�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MACADDR_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byMACAddr;//��������������ַ
+        }
+
+        //pppoe�ṹ
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_PPPOECFG
+        {
+            public uint dwPPPOE;//0-������,1-����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPPPoEUser;//PPPoE�û���
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = PASSWD_LEN)]
+            public string sPPPoEPassword;// PPPoE����
+            public NET_DVR_IPADDR struPPPoEIP;//PPPoE IP��ַ
+        }
+
+        //�������ýṹ(9000��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_NETCFG_V30
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ETHERNET, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_ETHERNET_V30[] struEtherNet;//��̫����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_IPADDR[] struRes1;/*����*/
+            public NET_DVR_IPADDR struAlarmHostIpAddr;/* ��������IP��ַ */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+            public ushort wAlarmHostIpPort;
+            public byte byUseDhcp;
+            public byte byRes3;
+            public NET_DVR_IPADDR struDnsServer1IpAddr;/* ����������1��IP��ַ */
+            public NET_DVR_IPADDR struDnsServer2IpAddr;/* ����������2��IP��ַ */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DOMAIN_NAME, ArraySubType = UnmanagedType.I1)]
+            public byte[] byIpResolver;
+            public ushort wIpResolverPort;
+            public ushort wHttpPortNo;
+            public NET_DVR_IPADDR struMulticastIpAddr;/* �ಥ���ַ */
+            public NET_DVR_IPADDR struGatewayIpAddr;/* ���ص�ַ */
+            public NET_DVR_PPPOECFG struPPPoE;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //��������������Ϣ�ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ETHERNET_MULTI
+        {
+            public NET_DVR_IPADDR struDVRIP;
+            public NET_DVR_IPADDR struDVRIPMask;
+            public uint dwNetInterface;
+            public byte byCardType;  //�������ͣ�0-��ͨ������1-����������2-��������
+            public byte byRes1;
+            public ushort wMTU;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MACADDR_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byMACAddr;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+            public byte byUseDhcp;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes3;
+            public NET_DVR_IPADDR struGatewayIpAddr;
+            public NET_DVR_IPADDR struDnsServer1IpAddr;
+            public NET_DVR_IPADDR struDnsServer2IpAddr;
+        }
+
+        //�������������ýṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_NETCFG_MULTI
+        {
+            public uint dwSize;
+            public byte byDefaultRoute;
+            public byte byNetworkCardNum;
+            public byte byWorkMode;   //0-��ͨ������ģʽ��1-����������ģʽ
+            public byte byRes;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_NETWORK_CARD, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_ETHERNET_MULTI[] struEtherNet;//��̫����
+            public NET_DVR_IPADDR struManageHost1IpAddr;
+            public NET_DVR_IPADDR struManageHost2IpAddr;
+            public NET_DVR_IPADDR struAlarmHostIpAddr;
+            public ushort wManageHost1Port;
+            public ushort wManageHost2Port;
+            public ushort wAlarmHostIpPort;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DOMAIN_NAME, ArraySubType = UnmanagedType.I1)]
+            public byte[] byIpResolver;
+            public ushort wIpResolverPort;
+            public ushort wDvrPort;
+            public ushort wHttpPortNo;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 6, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+            public NET_DVR_IPADDR struMulticastIpAddr;/* �ಥ���ַ */
+            public NET_DVR_PPPOECFG struPPPoE;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 24, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes3;
+        }
+
+        //�������ýṹ
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_NETCFG
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ETHERNET, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_ETHERNET[] struEtherNet;/* ��̫���� */
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sManageHostIP;//Զ�̹���������ַ
+            public ushort wManageHostPort;//Զ�̹��������˿ں�
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sIPServerIP;//IPServer��������ַ
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sMultiCastIP;//�ಥ���ַ
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sGatewayIP;//���ص�ַ
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sNFSIP;//NFS����IP��ַ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PATHNAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sNFSDirectory;//NFSĿ¼
+            public uint dwPPPOE;//0-������,1-����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPPPoEUser;//PPPoE�û���
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = PASSWD_LEN)]
+            public string sPPPoEPassword;// PPPoE����
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sPPPoEIP;//PPPoE IP��ַ(ֻ��)
+            public ushort wHttpPort;//HTTP�˿ں�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_SIP_CFG
+        {
+            public uint dwSize;
+            public byte byEnableAutoLogin;    //ʹ���Զ�ע�ᣬ0-��ʹ�ܣ�1-ʹ��
+            public byte byLoginStatus;  //ע��״̬��0-δע�ᣬ1-��ע�ᣬ�˲���ֻ�ܻ�ȡ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_DVR_IPADDR stuServerIP;  //SIP������IP
+            public ushort wServerPort;    //SIP�������˿�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byUserName;  //ע���û���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byPassWord; //ע������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_NUMBER_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byLocalNo;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDispalyName; //�豸��ʾ����
+            public ushort wLocalPort;     //���ض˿�
+            public byte byLoginCycle;   //ע�����ڣ�1-99����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 129, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //IP���ӶԽ��ֻ�����
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_IP_VIEW_DEVCFG
+        {
+            public uint dwSize;
+            public byte byDefaultRing; //Ĭ����������Χ1-6
+            public byte byRingVolume;  //������������Χ0-9
+            public byte byInputVolume; //��������ֵ����Χ0-6
+            public byte byOutputVolume; //�������ֵ����Χ0-9	
+            public ushort wRtpPort;  //Rtp�˿�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public uint dwPreviewDelayTime; //Ԥ����ʱ���ã�0-30��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+        
+        //Ip���ӶԽ���Ƶ��ز�������
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_IP_VIEW_AUDIO_CFG
+        {
+            public uint dwSize;	
+            public byte byAudioEncPri1; //��Ƶ�������ȼ�1��0-OggVorbis��1-G711_U��2-G711_A�� 5-MPEG2,6-G726��7-AAC
+            public byte byAudioEncPri2; //��Ƶ�������ȼ�2����sip��������֧����Ƶ����1ʱ��ʹ����Ƶ����2��0-OggVorbis��1-G711_U��2-G711_A�� 5-MPEG2,6-G726��7-AAC
+            public ushort wAudioPacketLen1; //��Ƶ����1���ݰ�����
+            public ushort wAudioPacketLen2; //��Ƶ����2���ݰ�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+        
+        //IP�ֻ����жԽ��������ýṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_IP_VIEW_CALL_CFG
+        {
+            public uint dwSize ;
+            public byte byEnableAutoResponse; //ʹ���Զ�Ӧ��,0-��ʹ�ܣ�1-ʹ��
+            public byte byAudoResponseTime; //�Զ�Ӧ��ʱ�䣬0-30��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public byte byEnableAlarmNumber1; //������������1��0-��������1-����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_NUMBER_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAlarmNumber1; //�����1
+            public byte byEnableAlarmNumber2; //������������2��0-��������1-����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes3;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_NUMBER_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAlarmNumber2; //���к���2�����к���1ʧ�᳢ܻ�Ժ��к���2
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 72, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes4;
+        }
+        
+        //ͨ��ͼ��ṹ
+        //�ƶ����(�ӽṹ)(���鷽ʽ��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_RECORDCHAN
+        {    
+            public uint dwMaxRecordChanNum;   //�豸֧�ֵ�������¼��ͨ����-ֻ��
+            public uint dwCurRecordChanNum;   //��ǰʵ�������õĹ���¼��ͨ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.U4)]
+            public uint dwRelRecordChan;	 /* ʵ�ʴ���¼��ͨ������ֵ��ʾ,���ý��������У����±�0 - MAX_CHANNUM_V30-1��Ч������м�����0xffffffff,�������Ч*/  
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;          //����
+        }             
+
+        //ͨ��ͼ��ṹ
+        //�ƶ����(�ӽṹ)(9000��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MOTION_V30
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 96*64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byMotionScope;/*�������,0-96λ,��ʾ64��,����96*64��С���,Ϊ1��ʾ���ƶ��������,0-��ʾ����*/
+            public byte byMotionSensitive;/*�ƶ����������, 0 - 5,Խ��Խ����,oxff�ر�*/
+            public byte byEnableHandleMotion;/* �Ƿ����ƶ���� 0���� 1����*/
+            public byte byEnableDisplay;/* �����ƶ���������ʾ��0- ��1- �� */
+            public byte reservedData;
+            public NET_DVR_HANDLEEXCEPTION_V30 struMotionHandleType;/* ������ʽ */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[] struAlarmTime;/*����ʱ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRelRecordChan;/* ����������¼��ͨ��*/
+        }
+
+        //�ƶ����(�ӽṹ)
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_MOTION
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 396, ArraySubType = UnmanagedType.I1)]
+            public byte[] byMotionScope;/*�������,����22*18��С���,Ϊ1��ʾ�ĺ�����ƶ��������,0-��ʾ����*/
+            public byte byMotionSensitive;/*�ƶ����������, 0 - 5,Խ��Խ����,0xff�ر�*/
+            public byte byEnableHandleMotion;/* �Ƿ����ƶ���� */
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 2)]
+            public string reservedData;
+            public NET_DVR_HANDLEEXCEPTION strMotionHandleType;/* ������ʽ */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[] struAlarmTime;//����ʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRelRecordChan;//����������¼��ͨ��,Ϊ1��ʾ������ͨ��
+        }
+
+        //�ڵ�����(�ӽṹ)(9000��չ)  �����С704*576
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_HIDEALARM_V30
+        {
+            public uint dwEnableHideAlarm;/* �Ƿ������ڵ����� ,0-��,1-�������� 2-�������� 3-��������*/
+            public ushort wHideAlarmAreaTopLeftX;/* �ڵ������x���� */
+            public ushort wHideAlarmAreaTopLeftY;/* �ڵ������y���� */
+            public ushort wHideAlarmAreaWidth;/* �ڵ�����Ŀ� */
+            public ushort wHideAlarmAreaHeight;/*�ڵ�����ĸ�*/
+            public NET_DVR_HANDLEEXCEPTION_V30 strHideAlarmHandleType;	/* ������ʽ */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[] struAlarmTime;//����ʱ��
+        }
+
+        //�ڵ�����(�ӽṹ)  �����С704*576
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_HIDEALARM
+        {
+            public uint dwEnableHideAlarm;/* �Ƿ������ڵ����� ,0-��,1-�������� 2-�������� 3-��������*/
+            public ushort wHideAlarmAreaTopLeftX;/* �ڵ������x���� */
+            public ushort wHideAlarmAreaTopLeftY;/* �ڵ������y���� */
+            public ushort wHideAlarmAreaWidth;/* �ڵ�����Ŀ� */
+            public ushort wHideAlarmAreaHeight;/*�ڵ�����ĸ�*/
+            public NET_DVR_HANDLEEXCEPTION strHideAlarmHandleType;/* ������ʽ */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[] struAlarmTime;//����ʱ��
+        }
+
+        //�źŶ�ʧ����(�ӽṹ)(9000��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VILOST_V30
+        {
+            public byte byEnableHandleVILost;/* �Ƿ����źŶ�ʧ���� */
+            public NET_DVR_HANDLEEXCEPTION_V30 strVILostHandleType;/* ������ʽ */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 56, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[] struAlarmTime;//����ʱ��
+        }
+
+        //�źŶ�ʧ����(�ӽṹ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VILOST
+        {
+            public byte byEnableHandleVILost;/* �Ƿ����źŶ�ʧ���� */
+            public NET_DVR_HANDLEEXCEPTION strVILostHandleType;/* ������ʽ */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[] struAlarmTime;//����ʱ��
+        }
+
+        //�ڵ�����(�ӽṹ)
+        [System.Runtime.InteropServices.StructLayoutAttribute(System.Runtime.InteropServices.LayoutKind.Sequential)]
+        public struct NET_DVR_SHELTER
+        {
+            public ushort wHideAreaTopLeftX;/* �ڵ������x���� */
+            public ushort wHideAreaTopLeftY;/* �ڵ������y���� */
+            public ushort wHideAreaWidth;/* �ڵ�����Ŀ� */
+            public ushort wHideAreaHeight;/*�ڵ�����ĸ�*/
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_COLOR
+        {
+            public byte byBrightness;/*����,0-255*/
+            public byte byContrast;/*�Աȶ�,0-255*/
+            public byte bySaturation;/*���Ͷ�,0-255*/
+            public byte byHue;/*ɫ��,0-255*/
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_RGB_COLOR
+        {
+            public byte byRed;	 //RGB��ɫ�������еĺ�ɫ
+            public byte byGreen; //RGB��ɫ�������е���ɫ
+            public byte byBlue;	//RGB��ɫ�������е���ɫ
+            public byte byRes;	//����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_DAYTIME
+        {
+            public byte byHour;//0~24
+            public byte byMinute;//0~60
+            public byte bySecond;//0~60
+            public byte byRes;
+            public ushort wMilliSecond; //0~1000
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_SCHEDULE_DAYTIME
+        {
+            public NET_DVR_DAYTIME struStartTime; //��ʼʱ��
+            public NET_DVR_DAYTIME struStopTime; //����ʱ��
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_DNMODE
+        {
+            public byte byObjectSize;//ռ�Ȳ���(0~100)
+            public byte byMotionSensitive; /*�ƶ����������, 0 - 5,Խ��Խ����,0xff�ر�*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 6, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_MOTION_MULTI_AREAPARAM
+        {
+            public byte byAreaNo;//������(IPC- 1~8)
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public NET_VCA_RECT struRect;//���������������Ϣ(����) size = 16;
+	        public NET_DVR_DNMODE  struDayNightDisable;//�ر�ģʽ
+            public NET_DVR_DNMODE  struDayModeParam;//����ģʽ
+            public NET_DVR_DNMODE  struNightModeParam;//ҹ��ģʽ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_MOTION_MULTI_AREA
+        {
+            public byte byDayNightCtrl;//��ҹ���� 0~�ر�,1~�Զ��л�,2~��ʱ�л�(Ĭ�Ϲر�)
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public NET_DVR_SCHEDULE_DAYTIME struScheduleTime;//�л�ʱ��  16
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_MULTI_AREA_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_MOTION_MULTI_AREAPARAM[] struMotionMultiAreaParam;//���֧��24������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 60, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_MOTION_SINGLE_AREA
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64*96, ArraySubType = UnmanagedType.I1)]
+            public byte[]byMotionScope;		/*�������,0-96λ,��ʾ64��,����96*64��С���,Ŀǰ��Ч����22*18,Ϊ1��ʾ���ƶ��������,0-��ʾ����*/
+            public byte byMotionSensitive;			/*�ƶ����������, 0 - 5,Խ��Խ����,0xff�ر�*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_MOTION_MODE_PARAM
+        {
+            public NET_DVR_MOTION_SINGLE_AREA  struMotionSingleArea; //��ͨģʽ�µĵ�������
+            public NET_DVR_MOTION_MULTI_AREA struMotionMultiArea; //ר��ģʽ�µĶ���������	
+        }
+
+        //�ƶ����
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_MOTION_V40
+        {	
+            public NET_DVR_MOTION_MODE_PARAM struMotionMode; //(5.1.0����)
+            public byte byEnableHandleMotion;		/* �Ƿ����ƶ���� 0���� 1����*/ 
+            public byte byEnableDisplay;	/*�����ƶ���������ʾ��0-��1-��*/
+            public byte byConfigurationMode; //0~��ͨ,1~ר��(5.1.0����)
+            public byte byRes1; //�����ֽ�
+            /* �쳣������ʽ */
+            public uint dwHandleType;        //�쳣����,�쳣������ʽ��"��"���  
+            /*0x00: ����Ӧ*/
+            /*0x01: ��ʾ���Ͼ���*/
+            /*0x02: ��������*/
+            /*0x04: �ϴ�����*/
+            /*0x08: �����������*/
+            /*0x10: ����JPRGץͼ���ϴ�Email*/
+            /*0x20: �������ⱨ��������*/
+            /*0x40: �������ӵ�ͼ(Ŀǰֻ��PCNVR֧��)*/
+            /*0x200: ץͼ���ϴ�FTP*/ 
+            public uint dwMaxRelAlarmOutChanNum ; //�����ı������ͨ������ֻ�������֧������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ALARMOUT_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwRelAlarmOut; //ʵ�ʴ����ı�������ţ���ֵ��ʾ,���ý��������У����±�0 - dwRelAlarmOut -1��Ч������м�����0xffffffff,�������Ч
+	        [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS*MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[] struAlarmTime; /*����ʱ��*/
+            /*������¼��ͨ��*/
+            public uint dwMaxRecordChanNum;   //�豸֧�ֵ�������¼��ͨ����-ֻ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwRelRecordChan;	 /* ʵ�ʴ���¼��ͨ������ֵ��ʾ,���ý��������У����±�0 - dwRelRecordChan -1��Ч������м�����0xffffffff,�������Ч*/  
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; //�����ֽ�
+        }
+
+        //�ڵ�����
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_HIDEALARM_V40
+        {
+            public uint dwEnableHideAlarm;  /* �Ƿ������ڵ�������0-��1-�������ȣ�2-�������ȣ�3-��������*/
+            public ushort wHideAlarmAreaTopLeftX;			/* �ڵ������x���� */
+            public ushort wHideAlarmAreaTopLeftY;			/* �ڵ������y���� */
+            public ushort wHideAlarmAreaWidth;				/* �ڵ�����Ŀ� */
+            public ushort wHideAlarmAreaHeight;				/*�ڵ�����ĸ�*/ 
+            /* �źŶ�ʧ����������� */	
+            public uint dwHandleType;        //�쳣����,�쳣������ʽ��"��"���  
+            /*0x00: ����Ӧ*/
+            /*0x01: ��ʾ���Ͼ���*/
+            /*0x02: ��������*/
+            /*0x04: �ϴ�����*/
+            /*0x08: �����������*/
+            /*0x10: ����JPRGץͼ���ϴ�Email*/
+            /*0x20: �������ⱨ��������*/
+            /*0x40: �������ӵ�ͼ(Ŀǰֻ��PCNVR֧��)*/
+            /*0x200: ץͼ���ϴ�FTP*/ 
+            public uint dwMaxRelAlarmOutChanNum ; //�����ı������ͨ������ֻ�������֧������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ALARMOUT_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwRelAlarmOut; /*������������ţ���ֵ��ʾ,���ý��������У����±�0 - dwRelAlarmOut -1��Ч������м�����0xffffffff,�������Ч*/  	
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS*MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[] struAlarmTime; /*����ʱ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; //����
+        } 
+
+        //�źŶ�ʧ����
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_VILOST_V40
+        {
+            public uint dwEnableVILostAlarm;				/* �Ƿ������źŶ�ʧ���� ,0-��,1-��*/	 
+            /* �źŶ�ʧ����������� */	
+            public uint dwHandleType;        //�쳣����,�쳣������ʽ��"��"���     
+            /*0x00: ����Ӧ*/    
+            /*0x01: ��ʾ���Ͼ���*/    
+            /*0x02: ��������*/    
+            /*0x04: �ϴ�����*/    
+            /*0x08: �����������*/    
+            /*0x10: ����JPRGץͼ���ϴ�Email*/    
+            /*0x20: �������ⱨ��������*/    
+            /*0x40: �������ӵ�ͼ(Ŀǰֻ��PCNVR֧��)*/    
+            /*0x200: ץͼ���ϴ�FTP*/ 
+            public uint dwMaxRelAlarmOutChanNum ; //�����ı������ͨ������ֻ�������֧������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ALARMOUT_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwRelAlarmOut; /*������������ţ���ֵ��ʾ,���ý��������У����±�0 - dwRelAlarmOut -1��Ч������м�����0xffffffff,�������Ч*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS*MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[] struAlarmTime; /*����ʱ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; //����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_VICOLOR
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_COLOR[]	  struColor;/*ͼ�����(��һ����Ч��������������)*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[]  struHandleTime;/*����ʱ���(����)*/
+        }
+
+        //ͨ��ͼ��ṹ(V40��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_PICCFG_V40
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sChanName; 
+            public uint dwVideoFormat;	/* ֻ�� ��Ƶ��ʽ 1-NTSC 2-PAL  */
+            public NET_DVR_VICOLOR struViColor;//	ͼ�������ʱ�������
+	        //��ʾͨ����
+            public uint dwShowChanName; // Ԥ����ͼ�����Ƿ���ʾͨ������,0-����ʾ,1-��ʾ
+            public ushort wShowNameTopLeftX;				/* ͨ��������ʾλ�õ�x���� */
+            public ushort wShowNameTopLeftY;				/* ͨ��������ʾλ�õ�y���� */
+	        //��˽�ڵ�
+            public uint dwEnableHide;		/* �Ƿ������ڵ� ,0-��,1-��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_SHELTERNUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SHELTER[] struShelter;
+            //OSD
+            public uint dwShowOsd;// Ԥ����ͼ�����Ƿ���ʾOSD,0-����ʾ,1-��ʾ
+            public ushort wOSDTopLeftX;				/* OSD��x���� */
+            public ushort wOSDTopLeftY;				/* OSD��y���� */
+            public byte byOSDType;					/* OSD����(��Ҫ�������ո�ʽ) */
+            /* 0: XXXX-XX-XX ������ */
+            /* 1: XX-XX-XXXX ������ */
+            /* 2: XXXX��XX��XX�� */
+            /* 3: XX��XX��XXXX�� */
+            /* 4: XX-XX-XXXX ������*/
+            /* 5: XX��XX��XXXX�� */
+            /*6: xx/xx/xxxx(��/��/��) */
+            /*7: xxxx/xx/xx(��/��/��) */
+            /*8: xx/xx/xxxx(��/��/��)*/
+            public byte byDispWeek;				/* �Ƿ���ʾ���� */
+            public byte byOSDAttrib;				/* OSD����:͸������˸ */
+            /* 0: ����ʾOSD */
+            /* 1: ͸������˸ */
+            /* 2: ͸��������˸ */
+            /* 3: ��͸������˸ */
+            /* 4: ��͸��������˸ */	
+            public byte byHourOSDType;				/* OSDСʱ��:0-24Сʱ��,1-12Сʱ�� */
+            public byte byFontSize;      //16*16(��)/8*16(Ӣ)��1-32*32(��)/16*32(Ӣ)��2-64*64(��)/32*64(Ӣ) FOR 91ϵ��HD-SDI����DVR
+            public byte byOSDColorType;	 //0-Ĭ�ϣ��ڰף���1-�Զ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_DVR_VILOST_V40 struVILost;  //��Ƶ�źŶ�ʧ������֧���飩
+            public NET_DVR_VILOST_V40 struAULost;  /*��Ƶ�źŶ�ʧ������֧���飩*/
+            public NET_DVR_MOTION_V40 struMotion;  //�ƶ���ⱨ����֧���飩
+            public NET_DVR_HIDEALARM_V40 struHideAlarm;  //�ڵ�������֧���飩
+            public NET_DVR_RGB_COLOR struOsdColor;//OSD��ɫ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 124, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //ͨ��ͼ��ṹ(9000��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_PICCFG_V30
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sChanName;
+            public uint dwVideoFormat;/* ֻ�� ��Ƶ��ʽ 1-NTSC 2-PAL*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byReservedData;/*����*/
+            //��ʾͨ����
+            public uint dwShowChanName;// Ԥ����ͼ�����Ƿ���ʾͨ������,0-����ʾ,1-��ʾ �����С704*576
+            public ushort wShowNameTopLeftX;/* ͨ��������ʾλ�õ�x���� */
+            public ushort wShowNameTopLeftY;/* ͨ��������ʾλ�õ�y���� */
+            //��Ƶ�źŶ�ʧ����
+            public NET_DVR_VILOST_V30 struVILost;
+            public NET_DVR_VILOST_V30 struRes;/*����*/
+            //�ƶ����
+            public NET_DVR_MOTION_V30 struMotion;
+            //�ڵ�����
+            public NET_DVR_HIDEALARM_V30 struHideAlarm;
+            //�ڵ�  �����С704*576
+            public uint dwEnableHide;/* �Ƿ������ڵ� ,0-��,1-��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_SHELTERNUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SHELTER[] struShelter;
+            //OSD
+            public uint dwShowOsd;// Ԥ����ͼ�����Ƿ���ʾOSD,0-����ʾ,1-��ʾ �����С704*576
+            public ushort wOSDTopLeftX;/* OSD��x���� */
+            public ushort wOSDTopLeftY;/* OSD��y���� */
+            public byte byOSDType;/* OSD����(��Ҫ�������ո�ʽ) */
+            /* 0: XXXX-XX-XX ������ */
+            /* 1: XX-XX-XXXX ������ */
+            /* 2: XXXX��XX��XX�� */
+            /* 3: XX��XX��XXXX�� */
+            /* 4: XX-XX-XXXX ������*/
+            /* 5: XX��XX��XXXX�� */
+            public byte byDispWeek;/* �Ƿ���ʾ���� */
+            public byte byOSDAttrib;/* OSD����:͸������˸ */
+            /* 0: ����ʾOSD */
+            /* 1: ͸��,��˸ */
+            /* 2: ͸��,����˸ */
+            /* 3: ��˸,��͸�� */
+            /* 4: ��͸��,����˸ */
+            public byte byHourOSDType;/* OSDСʱ��:0-24Сʱ��,1-12Сʱ�� */
+            public byte byFontSize;//�����С��16*16(��)/8*16(Ӣ)��1-32*32(��)/16*32(Ӣ)��2-64*64(��)/32*64(Ӣ)  3-48*48(��)/24*48(Ӣ) 0xff-����Ӧ(adaptive)
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 63, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //ͨ��ͼ��ṹSDK_V14��չ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PICCFG_EX
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sChanName;
+            public uint dwVideoFormat;/* ֻ�� ��Ƶ��ʽ 1-NTSC 2-PAL*/
+            public byte byBrightness;/*����,0-255*/
+            public byte byContrast;/*�Աȶ�,0-255*/
+            public byte bySaturation;/*���Ͷ�,0-255 */
+            public byte byHue;/*ɫ��,0-255*/
+            //��ʾͨ����
+            public uint dwShowChanName;// Ԥ����ͼ�����Ƿ���ʾͨ������,0-����ʾ,1-��ʾ �����С704*576
+            public ushort wShowNameTopLeftX;/* ͨ��������ʾλ�õ�x���� */
+            public ushort wShowNameTopLeftY;/* ͨ��������ʾλ�õ�y���� */
+            //�źŶ�ʧ����
+            public NET_DVR_VILOST struVILost;
+            //�ƶ����
+            public NET_DVR_MOTION struMotion;
+            //�ڵ�����
+            public NET_DVR_HIDEALARM struHideAlarm;
+            //�ڵ�  �����С704*576
+            public uint dwEnableHide;/* �Ƿ������ڵ� ,0-��,1-��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_SHELTERNUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SHELTER[] struShelter;
+            //OSD
+            public uint dwShowOsd;// Ԥ����ͼ�����Ƿ���ʾOSD,0-����ʾ,1-��ʾ �����С704*576
+            public ushort wOSDTopLeftX;/* OSD��x���� */
+            public ushort wOSDTopLeftY;/* OSD��y���� */
+            public byte byOSDType;/* OSD����(��Ҫ�������ո�ʽ) */
+            /* 0: XXXX-XX-XX ������ */
+            /* 1: XX-XX-XXXX ������ */
+            /* 2: XXXX��XX��XX�� */
+            /* 3: XX��XX��XXXX�� */
+            /* 4: XX-XX-XXXX ������*/
+            /* 5: XX��XX��XXXX�� */
+            public byte byDispWeek;/* �Ƿ���ʾ���� */
+            public byte byOSDAttrib;/* OSD����:͸������˸ */
+            /* 0: ����ʾOSD */
+            /* 1: ͸��,��˸ */
+            /* 2: ͸��,����˸ */
+            /* 3: ��˸,��͸�� */
+            /* 4: ��͸��,����˸ */
+            public byte byHourOsdType;/* OSDСʱ��:0-24Сʱ��,1-12Сʱ�� */
+        }
+
+        //ͨ��ͼ��ṹ(SDK_V13��֮ǰ�汾)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PICCFG
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sChanName;
+            public uint dwVideoFormat;/* ֻ�� ��Ƶ��ʽ 1-NTSC 2-PAL*/
+            public byte byBrightness;/*����,0-255*/
+            public byte byContrast;/*�Աȶ�,0-255*/
+            public byte bySaturation;/*���Ͷ�,0-255 */
+            public byte byHue;/*ɫ��,0-255*/
+            //��ʾͨ����
+            public uint dwShowChanName;// Ԥ����ͼ�����Ƿ���ʾͨ������,0-����ʾ,1-��ʾ �����С704*576
+            public ushort wShowNameTopLeftX;/* ͨ��������ʾλ�õ�x���� */
+            public ushort wShowNameTopLeftY;/* ͨ��������ʾλ�õ�y���� */
+            //�źŶ�ʧ����
+            public NET_DVR_VILOST struVILost;
+            //�ƶ����
+            public NET_DVR_MOTION struMotion;
+            //�ڵ�����
+            public NET_DVR_HIDEALARM struHideAlarm;
+            //�ڵ�  �����С704*576
+            public uint dwEnableHide;/* �Ƿ������ڵ� ,0-��,1-��*/
+            public ushort wHideAreaTopLeftX;/* �ڵ������x���� */
+            public ushort wHideAreaTopLeftY;/* �ڵ������y���� */
+            public ushort wHideAreaWidth;/* �ڵ�����Ŀ� */
+            public ushort wHideAreaHeight;/*�ڵ�����ĸ�*/
+            //OSD
+            public uint dwShowOsd;// Ԥ����ͼ�����Ƿ���ʾOSD,0-����ʾ,1-��ʾ �����С704*576
+            public ushort wOSDTopLeftX;/* OSD��x���� */
+            public ushort wOSDTopLeftY;/* OSD��y���� */
+            public byte byOSDType;/* OSD����(��Ҫ�������ո�ʽ) */
+            /* 0: XXXX-XX-XX ������ */
+            /* 1: XX-XX-XXXX ������ */
+            /* 2: XXXX��XX��XX�� */
+            /* 3: XX��XX��XXXX�� */
+            /* 4: XX-XX-XXXX ������*/
+            /* 5: XX��XX��XXXX�� */
+            public byte byDispWeek;/* �Ƿ���ʾ���� */
+            public byte byOSDAttrib;/* OSD����:͸������˸ */
+            /* 0: ����ʾOSD */
+            /* 1: ͸��,��˸ */
+            /* 2: ͸��,����˸ */
+            /* 3: ��˸,��͸�� */
+            /* 4: ��͸��,����˸ */
+            public byte reservedData2;
+        }
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MULTI_STREAM_COMPRESSIONCFG_COND
+        {
+            public uint dwSize;
+            public NET_DVR_STREAM_INFO struStreamInfo;
+            public uint dwStreamType; //�������ͣ�0-��������1-��������2-�¼����ͣ�3-����3���������Զ�������������ͨ��GET /ISAPI/Streaming/channels/<ID>/customStream��ȡ��ǰͨ���Ѿ����ӵ������Զ�������ID���Զ�������Ϊ6~10��������ֵ����6~10��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MULTI_STREAM_COMPRESSIONCFG
+        {
+            public uint dwSize;
+            public uint dwStreamType;        //�������ͣ�0-��������1-��������2-�¼����ͣ�3-����3������
+            public NET_DVR_COMPRESSION_INFO_V30 struStreamPara;        //����ѹ������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 80, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //����ѹ������(�ӽṹ)(9000��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_COMPRESSION_INFO_V30
+        {
+            public byte byStreamType;//�������� 0-��Ƶ��, 1-������, ��ʾ�¼�ѹ������ʱ���λ��ʾ�Ƿ�����ѹ������
+            public byte byResolution;//�ֱ���0-DCIF 1-CIF, 2-QCIF, 3-4CIF, 4-2CIF 5��������16-VGA��640*480�� 17-UXGA��1600*1200�� 18-SVGA ��800*600��19-HD720p��1280*720��20-XVGA  21-HD900p
+            public byte byBitrateType;//�������� 0:������, 1:������
+            public byte byPicQuality;//ͼ������ 0-��� 1-�κ� 2-�Ϻ� 3-һ�� 4-�ϲ� 5-��
+            public uint dwVideoBitrate;//��Ƶ���� 0-���� 1-16K 2-32K 3-48k 4-64K 5-80K 6-96K 7-128K 8-160k 9-192K 10-224K 11-256K 12-320K
+            // 13-384K 14-448K 15-512K 16-640K 17-768K 18-896K 19-1024K 20-1280K 21-1536K 22-1792K 23-2048K
+            //���λ(31λ)�ó�1��ʾ���Զ�������, 0-30λ��ʾ����ֵ��
+            public uint dwVideoFrameRate;//֡�� 0-ȫ��; 1-1/16; 2-1/8; 3-1/4; 4-1/2; 5-1; 6-2; 7-4; 8-6; 9-8; 10-10; 11-12; 12-16; 13-20; V2.0�汾���¼�14-15; 15-18; 16-22;
+            public ushort wIntervalFrameI;//I֡���
+            //2006-08-11 ���ӵ�P֡�����ýӿڣ����Ը���ʵʱ����ʱ����
+            public byte byIntervalBPFrame;//0-BBP֡; 1-BP֡; 2-��P֡
+            public byte byres1; //����
+            public byte byVideoEncType;//��Ƶ�������� 0 hik264;1��׼h264; 2��׼mpeg4;
+            public byte byAudioEncType; //��Ƶ�������� 0��OggVorbis
+            public byte byVideoEncComplexity; //��Ƶ���븴�Ӷȣ�0-�ͣ�1-�У�2��,0xfe:�Զ�����Դһ��
+            public byte byEnableSvc; //0 - ������SVC���ܣ�1- ����SVC����
+            public byte byFormatType; //��װ���ͣ�1-������2-RTP��װ��3-PS��װ��4-TS��װ��5-˽�У�6-FLV��7-ASF��8-3GP,9-RTP+PS�����꣺GB28181����0xff-��Ч
+            public byte byAudioBitRate; //��Ƶ����0-Ĭ�ϣ�1-8Kbps, 2- 16Kbps, 3-32Kbps��4-64Kbps��5-128Kbps��6-192Kbps��(IPC5.1.0Ĭ��4-64Kbps)
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 6, ArraySubType = UnmanagedType.I1)]
+            public byte[] byres;//���ﱣ����Ƶ��ѹ������
+        }
+
+        //ͨ��ѹ������(9000��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_COMPRESSIONCFG_V30
+        {
+            public uint dwSize;
+            public NET_DVR_COMPRESSION_INFO_V30 struNormHighRecordPara;//¼�� ��Ӧ8000����ͨ
+            public NET_DVR_COMPRESSION_INFO_V30 struRes;//���� char reserveData[28];
+            public NET_DVR_COMPRESSION_INFO_V30 struEventRecordPara;//�¼�����ѹ������
+            public NET_DVR_COMPRESSION_INFO_V30 struNetPara;//����(������)
+        }
+
+        //����ѹ������(�ӽṹ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_COMPRESSION_INFO
+        {
+            public byte byStreamType;//��������0-��Ƶ��,1-������,��ʾѹ������ʱ���λ��ʾ�Ƿ�����ѹ������
+            public byte byResolution;//�ֱ���0-DCIF 1-CIF, 2-QCIF, 3-4CIF, 4-2CIF, 5-2QCIF(352X144)(����ר��)
+            public byte byBitrateType;//��������0:�����ʣ�1:������
+            public byte byPicQuality;//ͼ������ 0-��� 1-�κ� 2-�Ϻ� 3-һ�� 4-�ϲ� 5-��
+            public uint dwVideoBitrate; //��Ƶ���� 0-���� 1-16K(����) 2-32K 3-48k 4-64K 5-80K 6-96K 7-128K 8-160k 9-192K 10-224K 11-256K 12-320K
+            // 13-384K 14-448K 15-512K 16-640K 17-768K 18-896K 19-1024K 20-1280K 21-1536K 22-1792K 23-2048K
+            //���λ(31λ)�ó�1��ʾ���Զ�������, 0-30λ��ʾ����ֵ(MIN-32K MAX-8192K)��
+            public uint dwVideoFrameRate;//֡�� 0-ȫ��; 1-1/16; 2-1/8; 3-1/4; 4-1/2; 5-1; 6-2; 7-4; 8-6; 9-8; 10-10; 11-12; 12-16; 13-20;
+        }
+
+        //ͨ��ѹ������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_COMPRESSIONCFG
+        {
+            public uint dwSize;
+            public NET_DVR_COMPRESSION_INFO struRecordPara;//¼��/�¼�����¼��
+            public NET_DVR_COMPRESSION_INFO struNetPara;//����/����
+        }
+
+        //����ѹ������(�ӽṹ)(��չ) ����I֡���
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_COMPRESSION_INFO_EX
+        {
+            public byte byStreamType;//��������0-��Ƶ��, 1-������
+            public byte byResolution;//�ֱ���0-DCIF 1-CIF, 2-QCIF, 3-4CIF, 4-2CIF, 5-2QCIF(352X144)(����ר��)
+            public byte byBitrateType;//��������0:�����ʣ�1:������
+            public byte byPicQuality;//ͼ������ 0-��� 1-�κ� 2-�Ϻ� 3-һ�� 4-�ϲ� 5-��
+            public uint dwVideoBitrate;//��Ƶ���� 0-���� 1-16K(����) 2-32K 3-48k 4-64K 5-80K 6-96K 7-128K 8-160k 9-192K 10-224K 11-256K 12-320K
+            // 13-384K 14-448K 15-512K 16-640K 17-768K 18-896K 19-1024K 20-1280K 21-1536K 22-1792K 23-2048K
+            //���λ(31λ)�ó�1��ʾ���Զ�������, 0-30λ��ʾ����ֵ(MIN-32K MAX-8192K)��
+            public uint dwVideoFrameRate;//֡�� 0-ȫ��; 1-1/16; 2-1/8; 3-1/4; 4-1/2; 5-1; 6-2; 7-4; 8-6; 9-8; 10-10; 11-12; 12-16; 13-20, //V2.0����14-15, 15-18, 16-22;
+            public ushort wIntervalFrameI;//I֡���
+            //2006-08-11 ���ӵ�P֡�����ýӿڣ����Ը���ʵʱ����ʱ����
+            public byte byIntervalBPFrame;//0-BBP֡; 1-BP֡; 2-��P֡
+            public byte byRes;
+        }
+
+        //ͨ��ѹ������(��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_COMPRESSIONCFG_EX
+        {
+            public uint dwSize;
+            public NET_DVR_COMPRESSION_INFO_EX struRecordPara;//¼��
+            public NET_DVR_COMPRESSION_INFO_EX struNetPara;//����
+        }
+
+        //ʱ���¼���������(�ӽṹ)
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_RECORDSCHED
+        {
+            public NET_DVR_SCHEDTIME struRecordTime;
+            public byte byRecordType;//0:��ʱ¼��1:�ƶ���⣬2:����¼��3:����|������4:����&����, 5:�����, 6: ����¼��
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 3)]
+            public string reservedData;
+        }
+
+        //ȫ��¼���������(�ӽṹ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_RECORDDAY
+        {
+            public ushort wAllDayRecord;/* �Ƿ�ȫ��¼�� 0-�� 1-��*/
+            public byte byRecordType;/* ¼������ 0:��ʱ¼��1:�ƶ���⣬2:����¼��3:����|������4:����&���� 5:�����, 6: ����¼��*/
+            public byte reservedData;
+        }
+        
+        //ʱ���¼���������(�ӽṹ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_RECORDSCHED_V40
+        {
+            public NET_DVR_SCHEDTIME  struRecordTime;
+            /*¼�����ͣ�0:��ʱ¼��1:�ƶ���⣬2:����¼��3:����|������4:����&���� 5:�����, 
+            6-���ܱ���¼��10-PIR������11-���߱�����12-���ȱ�����13-ȫ���¼�,14-���ܽ�ͨ�¼�, 
+            15-Խ�����,16-��������,17-�����쳣,18-����������,
+            19-�������(Խ�����|��������|�������|�����쳣|����������),20���������,21-POS¼��,
+            22-�����������, 23-�뿪�������,24-�ǻ����,25-��Ա�ۼ����,26-�����˶����,27-ͣ�����,
+            28-��Ʒ�������,29-��Ʒ��ȡ���,30-����⣬31-���ƻ����,32-��ܶ�Ź�¼�(˾��),33-�����¼�(˾��), 34-��λ�¼�(˾��)
+            35-��ֻ���, 36-����Ԥ����37-���±�����38-�²����39-���߲��±���,40-����������41-��������,42-ҵ����ѯ,43-�������,44-�����ʸ�,45-Ŀ������������ʱ��46-����ץ�ģ�47-�Ƿ���̯,48-Ŀ��ץ��,
+            49-�����˶���50��ΣĿ���λ���-��ڼ�⣬51-������52�����仯 */
+            public byte byRecordType; 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 31, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+         //ȫ��¼���������(�ӽṹ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_RECORDDAY_V40
+        {
+            public byte byAllDayRecord; /* �Ƿ�ȫ��¼�� 0-�� 1-��*/
+                         /*¼�����ͣ�0:��ʱ¼��1:�ƶ���⣬2:����¼��3:����|������4:����&���� 5:�����, 
+                         6-���ܱ���¼��10-PIR������11-���߱�����12-���ȱ�����13-ȫ���¼�,14-���ܽ�ͨ�¼�, 
+                         15-Խ�����,16-��������,17-�����쳣,18-����������,
+                         19-�������(Խ�����|��������|�������|�����쳣|����������),20���������,21-POS¼��,
+                         22-�����������, 23-�뿪�������,24-�ǻ����,25-��Ա�ۼ����,26-�����˶����,27-ͣ�����,
+                         28-��Ʒ�������,29-��Ʒ��ȡ���,30-����⣬31-���ƻ����,32-��ܶ�Ź�¼�(˾��),33-�����¼�(˾��), 34-��λ�¼�(˾��)
+                         35-��ֻ���, 36-����Ԥ����37-���±�����38-�²����39-���߲��±���,40-����������41-��������,42-ҵ����ѯ,43-�������,44-�����ʸ�,45-Ŀ������������ʱ,46-����ץ��,47-�Ƿ���̯,48-Ŀ��ץ��,
+                         49-�����˶���50��ΣĿ���λ���-��ڼ�⣬51-������52�����仯*/
+            public byte byRecordType; 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 62, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_RECORD_V40
+        {
+            public uint dwSize;
+            public uint dwRecord;                          /*�Ƿ�¼�� 0-�� 1-��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_RECORDDAY_V40[] struRecAllDay;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_RECORDSCHED_V40[] struRecordSched;
+            public uint dwRecordTime;                    /* ¼����ʱ���� 0-5�룬 1-10�룬 2-30�룬 3-1���ӣ� 4-2���ӣ� 5-5���ӣ� 6-10����*/
+            public uint dwPreRecordTime;                /* Ԥ¼ʱ�� 0-��Ԥ¼ 1-5�� 2-10�� 3-15�� 4-20�� 5-25�� 6-30�� 7-0xffffffff(������Ԥ¼) */
+            public uint dwRecorderDuration;                /* ¼�񱣴���ʱ�� */
+            public byte byRedundancyRec;    /*�Ƿ�����¼��,��Ҫ����˫���ݣ�0/1*/
+            public byte byAudioRec;        /*¼��ʱ����������ʱ�Ƿ��¼��Ƶ���ݣ������д˷���*/
+            public byte byStreamType;  // 0-��������1-��������2-��������ͬʱ 3-������
+            public byte byPassbackRecord;  // 0:���ش�¼�� 1���ش�¼��
+            public ushort wLockDuration;  // ¼������ʱ������λСʱ 0��ʾ��������0xffff��ʾ����������¼��ε�ʱ�����������ij���ʱ����¼�񣬽���������
+            public byte byRecordBackup;  // 0:¼�񲻴浵 1��¼��浵
+            public byte bySVCLevel;    //SVC��֡���ͣ�0-���飬1-�����֮һ 2-���ķ�֮��
+            public byte byRecordManage;   //¼����ȣ�0-���ã� 1-������; ����ʱ���ж�ʱ¼�񣻲�����ʱ�����ж�ʱ¼�񣬵���¼��ƻ�����ʹ�ã������ƶ���⣬�ش������ڰ�����¼��ƻ�����
+            public byte byExtraSaveAudio;//��Ƶ�����洢
+            /*��������¼���ܺ��㷨�����Զ���������¼���㷨���书��Ϊ��¼������Ŀ����֣��ή�����ʡ�֡�ʣ���Ŀ�����ʱ�ָֻ�ȫ���ʼ�֡�ʣ��Ӷ��ﵽ������Դ���ĵ�Ŀ��*/
+            public byte byIntelligentRecord;//�Ƿ�������¼���� 0-�� 1-��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 125, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //ͨ��¼���������(9000��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_RECORD_V30
+        {
+            public uint dwSize;
+            public uint dwRecord;/*�Ƿ�¼�� 0-�� 1-��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_RECORDDAY[] struRecAllDay;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_RECORDSCHED[] struRecordSched;
+            public uint dwRecordTime;/* ¼����ʱ���� 0-5�룬 1-20�룬 2-30�룬 3-1���ӣ� 4-2���ӣ� 5-5���ӣ� 6-10����*/
+            public uint dwPreRecordTime;/* Ԥ¼ʱ�� 0-��Ԥ¼ 1-5�� 2-10�� 3-15�� 4-20�� 5-25�� 6-30�� 7-0xffffffff(������Ԥ¼) */
+            public uint dwRecorderDuration;/* ¼�񱣴���ʱ�� */
+            public byte byRedundancyRec;/*�Ƿ�����¼��,��Ҫ����˫���ݣ�0/1*/
+            public byte byAudioRec;/*¼��ʱ����������ʱ�Ƿ��¼��Ƶ���ݣ������д˷���*/
+            public byte byStreamType;  // 0:������ 1��������
+            public byte byPassbackRecord;  // 0:���ش�¼�� 1���ش�¼��
+            public ushort wLockDuration;  // ¼������ʱ������λСʱ 0��ʾ��������0xffff��ʾ����������¼��ε�ʱ�����������ij���ʱ����¼�񣬽���������
+            public byte byRecordBackup;  // 0:¼�񲻴浵 1��¼��浵
+            public byte bySVCLevel;	//SVC��֡���ͣ�0-���飬1-�����֮һ 2-���ķ�֮��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byReserve;
+        }
+
+        //ͨ��¼���������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_RECORD
+        {
+            public uint dwSize;
+            public uint dwRecord;/*�Ƿ�¼�� 0-�� 1-��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_RECORDDAY[] struRecAllDay;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_RECORDSCHED[] struRecordSched;
+            public uint dwRecordTime;/* ¼��ʱ�䳤�� */
+            public uint dwPreRecordTime;/* Ԥ¼ʱ�� 0-��Ԥ¼ 1-5�� 2-10�� 3-15�� 4-20�� 5-25�� 6-30�� 7-0xffffffff(������Ԥ¼) */
+        }
+
+        //��̨Э����ṹ����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PTZ_PROTOCOL
+        {
+            public uint dwType;/*����������ֵ����1��ʼ��������*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = DESC_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDescribe;/*������������������8000�е�һ��*/
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PTZCFG
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PTZ_PROTOCOL_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_PTZ_PROTOCOL[] struPtz;/*���200��PTZ��*/
+            public uint dwPtzNum;/*��Ч��ptzЭ����Ŀ����0��ʼ(������ʱ��1)*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+        /***************************��̨����(end)******************************/
+
+        //ͨ��������(��̨)��������(9000��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DECODERCFG_V30
+        {
+            public uint dwSize;
+            public uint dwBaudRate;//������(bps)��0��50��1��75��2��110��3��150��4��300��5��600��6��1200��7��2400��8��4800��9��9600��10��19200�� 11��38400��12��57600��13��76800��14��115.2k;
+            public byte byDataBit;// �����м�λ 0��5λ��1��6λ��2��7λ��3��8λ;
+            public byte byStopBit;// ֹͣλ 0��1λ��1��2λ
+            public byte byParity;// У�� 0����У�飬1����У�飬2��żУ��;
+            public byte byFlowcontrol;// 0���ޣ�1��������,2-Ӳ����
+            public ushort wDecoderType;//����������, ��0��ʼ����ӦptzЭ���б�
+            public ushort wDecoderAddress;/*��������ַ:0 - 255*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_PRESET_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] bySetPreset;/* Ԥ�õ��Ƿ�����,0-û������,1-����*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CRUISE_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] bySetCruise;/* Ѳ���Ƿ�����: 0-û������,1-���� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_TRACK_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] bySetTrack;/* �Ƿ�����,0-û������,1-����*/
+        }
+
+        //ͨ��������(��̨)��������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DECODERCFG
+        {
+            public uint dwSize;
+            public uint dwBaudRate; //������(bps)��0��50��1��75��2��110��3��150��4��300��5��600��6��1200��7��2400��8��4800��9��9600��10��19200�� 11��38400��12��57600��13��76800��14��115.2k;
+            public byte byDataBit; // �����м�λ 0��5λ��1��6λ��2��7λ��3��8λ;
+            public byte byStopBit;// ֹͣλ 0��1λ��1��2λ;
+            public byte byParity; // У�� 0����У�飬1����У�飬2��żУ��;
+            public byte byFlowcontrol;// 0���ޣ�1��������,2-Ӳ����
+            public ushort wDecoderType;//����������, 0��YouLi��1��LiLin-1016��2��LiLin-820��3��Pelco-p��4��DM DynaColor��5��HD600��6��JC-4116��7��Pelco-d WX��8��Pelco-d PICO
+            public ushort wDecoderAddress;/*��������ַ:0 - 255*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_PRESET, ArraySubType = UnmanagedType.I1)]
+            public byte[] bySetPreset;/* Ԥ�õ��Ƿ�����,0-û������,1-����*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CRUISE, ArraySubType = UnmanagedType.I1)]
+            public byte[] bySetCruise;/* Ѳ���Ƿ�����: 0-û������,1-���� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_TRACK, ArraySubType = UnmanagedType.I1)]
+            public byte[] bySetTrack;/* �Ƿ�����,0-û������,1-����*/
+        }
+
+        //ppp��������(�ӽṹ)
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_PPPCFG_V30
+        {
+            public NET_DVR_IPADDR struRemoteIP;//Զ��IP��ַ
+            public NET_DVR_IPADDR struLocalIP;//����IP��ַ
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sLocalIPMask;//����IP��ַ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUsername;/* �û��� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassword;/* ���� */
+            public byte byPPPMode;//PPPģʽ, 0��������1������
+            public byte byRedial;//�Ƿ�ز� ��0-��,1-��
+            public byte byRedialMode;//�ز�ģʽ,0-�ɲ�����ָ��,1-Ԥ�ûز�����
+            public byte byDataEncrypt;//���ݼ���,0-��,1-��
+            public uint dwMTU;//MTU
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = PHONENUMBER_LEN)]
+            public string sTelephoneNumber;//�绰����
+        }
+
+        //ppp��������(�ӽṹ)
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_PPPCFG
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sRemoteIP;//Զ��IP��ַ
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sLocalIP;//����IP��ַ
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sLocalIPMask;//����IP��ַ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUsername;/* �û��� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassword;/* ���� */
+            public byte byPPPMode;//PPPģʽ, 0��������1������
+            public byte byRedial;//�Ƿ�ز� ��0-��,1-��
+            public byte byRedialMode;//�ز�ģʽ,0-�ɲ�����ָ��,1-Ԥ�ûز�����
+            public byte byDataEncrypt;//���ݼ���,0-��,1-��
+            public uint dwMTU;//MTU
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = PHONENUMBER_LEN)]
+            public string sTelephoneNumber;//�绰����
+        }
+
+        //RS232���ڲ�������(9000��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SINGLE_RS232
+        {
+            public uint dwBaudRate;/*������(bps)��0��50��1��75��2��110��3��150��4��300��5��600��6��1200��7��2400��8��4800��9��9600��10��19200�� 11��38400��12��57600��13��76800��14��115.2k;*/
+            public byte byDataBit;/* �����м�λ 0��5λ��1��6λ��2��7λ��3��8λ */
+            public byte byStopBit;/* ֹͣλ 0��1λ��1��2λ */
+            public byte byParity;/* У�� 0����У�飬1����У�飬2��żУ�� */
+            public byte byFlowcontrol;/* 0���ޣ�1��������,2-Ӳ���� */
+            public uint dwWorkMode; /* ����ģʽ��0��232��������PPP���ţ�1��232�������ڲ������ƣ�2��͸��ͨ�� */
+        }
+
+        //RS232���ڲ�������(9000��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_RS232CFG_V30
+        {
+            public uint dwSize;
+            public NET_DVR_SINGLE_RS232 struRs232;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 84, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public NET_DVR_PPPCFG_V30 struPPPConfig;
+        }
+
+        //RS232���ڲ�������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_RS232CFG
+        {
+            public uint dwSize;
+            public uint dwBaudRate;//������(bps)��0��50��1��75��2��110��3��150��4��300��5��600��6��1200��7��2400��8��4800��9��9600��10��19200�� 11��38400��12��57600��13��76800��14��115.2k;
+            public byte byDataBit;// �����м�λ 0��5λ��1��6λ��2��7λ��3��8λ;
+            public byte byStopBit;// ֹͣλ 0��1λ��1��2λ;
+            public byte byParity;// У�� 0����У�飬1����У�飬2��żУ��;
+            public byte byFlowcontrol;// 0���ޣ�1��������,2-Ӳ����
+            public uint dwWorkMode;// ����ģʽ��0��խ������(232��������PPP����)��1������̨(232�������ڲ�������)��2��͸��ͨ��
+            public NET_DVR_PPPCFG struPPPConfig;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PRESETCHAN_INFO
+        {
+            public uint dwEnablePresetChan;	/*����Ԥ�õ��ͨ��*/
+            public uint dwPresetPointNo;		/*����Ԥ�õ�ͨ����Ӧ��Ԥ�õ����, 0xfffffff��ʾ������Ԥ�õ㡣*/
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CRUISECHAN_INFO
+        {
+            public uint dwEnableCruiseChan;	/*����Ѳ����ͨ��*/
+            public uint dwCruiseNo;		/*Ѳ��ͨ����Ӧ��Ѳ�����, 0xfffffff��ʾ��Ч*/
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PTZTRACKCHAN_INFO
+        {
+            public uint dwEnablePtzTrackChan;	/*���û���ɨ���ͨ��*/
+            public uint dwPtzTrackNo;		/*����ɨ��ͨ����Ӧ�ı��, 0xfffffff��ʾ��Ч*/
+        }
+
+        //���������������(256·NVR��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ALARMINCFG_V40
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sAlarmInName;	/* ���� */
+            public byte byAlarmType;	            //����������,0������,1������
+            public byte byAlarmInHandle;	        /* �Ƿ��� 0-������ 1-����*/
+            public byte byChannel;                 // �������봥������ʶ��ͨ��
+            public byte byRes1;                    //����			
+            public uint dwHandleType;        //�쳣����,�쳣������ʽ��"��"���   
+            /*0x00: ����Ӧ*/
+            /*0x01: ��ʾ���Ͼ���*/
+            /*0x02: ��������*/
+            /*0x04: �ϴ�����*/
+            /*0x08: �����������*/
+            /*0x10: ����JPRGץͼ���ϴ�Email*/
+            /*0x20: �������ⱨ��������*/
+            /*0x40: �������ӵ�ͼ(Ŀǰֻ��PCNVR֧��)*/
+            /*0x200: ץͼ���ϴ�FTP*/ 
+            public uint dwMaxRelAlarmOutChanNum ; //�����ı������ͨ������ֻ�������֧������
+            public uint dwRelAlarmOutChanNum; //�����ı������ͨ���� ʵ��֧����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ALARMOUT_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwRelAlarmOut; //��������ͨ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[] struAlarmTime;//����ʱ��
+            /*������¼��ͨ��*/
+            public uint dwMaxRecordChanNum;   //�豸֧�ֵ�������¼��ͨ����-ֻ��
+            public uint dwCurRecordChanNum;    //��ǰʵ�������õĹ���¼��ͨ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwRelRecordChan;	 /* ʵ�ʴ���¼��ͨ������ֵ��ʾ,���ý��������У����±�0 - dwCurRecordChanNum -1��Ч������м�����0xffffffff,�������Ч*/ 
+            public uint dwMaxEnablePtzCtrlNun; //�������õ���̨��������(ֻ��)
+            public uint dwEnablePresetChanNum;  //��ǰ������Ԥ�õ����Ŀ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_PRESETCHAN_INFO[] struPresetChanInfo; //���õ�Ԥ�õ���Ϣ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 516, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;					/*����*/
+            public uint dwEnableCruiseChanNum;  //��ǰ������Ѳ����ͨ����Ŀ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_CRUISECHAN_INFO[] struCruiseChanInfo; //����Ѳ������ͨ������Ϣ
+            public uint dwEnablePtzTrackChanNum;  //��ǰ������Ѳ����ͨ����Ŀ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_PTZTRACKCHAN_INFO[] struPtzTrackInfo; //���û���ɨ���ͨ����Ϣ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 256, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //���������������(9000��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ALARMINCFG_V30
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sAlarmInName;/* ���� */
+            public byte byAlarmType; //����������,0������,1������
+            public byte byAlarmInHandle; /* �Ƿ��� 0-������ 1-����*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_DVR_HANDLEEXCEPTION_V30 struAlarmHandleType;/* ������ʽ */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[] struAlarmTime;//����ʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRelRecordChan;//����������¼��ͨ��,Ϊ1��ʾ������ͨ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byEnablePreset;/* �Ƿ����Ԥ�õ� 0-��,1-��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byPresetNo;/* ���õ���̨Ԥ�õ����,һ������������Ե��ö��ͨ������̨Ԥ�õ�, 0xff��ʾ������Ԥ�õ㡣*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 192, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;/*����*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byEnableCruise;/* �Ƿ����Ѳ�� 0-��,1-��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byCruiseNo;/* Ѳ�� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byEnablePtzTrack;/* �Ƿ���� 0-��,1-��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byPTZTrack;/* ���õ���̨����� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes3;
+        }
+
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct STRUCT_IO_ALARM
+        {
+            public uint	dwAlarmInputNo;		//���������ı�������ͨ���ţ�һ��ֻ��һ��
+            public uint	dwTrigerAlarmOutNum;	/*�����ı���������������ں������䳤���ݲ��������д����ı������ͨ���ţ����ֽڱ�ʾһ��*/
+            public uint	dwTrigerRecordChanNum;	/*������¼��ͨ�����������ں������䳤���ݲ��������д�����¼��ͨ���ţ����ֽڱ�ʾһ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 116, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct STRUCT_ALARM_CHANNEL
+        {
+            public uint	dwAlarmChanNum;	/*��������ͨ�����ݸ��������ں������䳤���ݲ��������з����ı���ͨ���ţ����ֽڱ�ʾһ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 124, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct STRUCT_ALARM_HD
+        {
+            public uint	dwAlarmHardDiskNum;	/*����������Ӳ�����ݳ��ȣ����ں������䳤���ݲ��������з���������Ӳ�̺ţ��Ľڱ�ʾһ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 124, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayout(LayoutKind.Explicit)]
+        public struct UNION_ALARMINFO_FIXED
+        {
+            [FieldOffset(0)]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128, ArraySubType = UnmanagedType.I1)]
+            public byte[] byUnionLen;         
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ALRAM_FIXED_HEADER
+        {
+            public uint dwAlarmType;              /*0-�ź�������,1-Ӳ����,2-�źŶ�ʧ��3���ƶ���⣬4��Ӳ��δ��ʽ��,5-дӲ�̳���,6-�ڵ�������7-��ʽ��ƥ��, 8-�Ƿ����ʣ�9-��Ƶ�ź��쳣��10-¼���쳣��11-���ܳ����仯��12-�����쳣��13-ǰ��/¼��ֱ��ʲ�ƥ��*/
+            public NET_DVR_TIME_EX struAlarmTime;	//����������ʱ��
+            public UNION_ALARMINFO_FIXED uStruAlarm;
+        }
+
+       [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ALARMINFO_V40
+       {
+            public NET_DVR_ALRAM_FIXED_HEADER struAlarmFixedHeader;	//�����̶�����
+            public IntPtr pAlarmData;	//�����ɱ䲿������
+       }
+
+        //���������������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ALARMINCFG
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sAlarmInName;/* ���� */
+            public byte byAlarmType;//����������,0������,1������
+            public byte byAlarmInHandle;/* �Ƿ��� 0-������ 1-����*/
+            public byte byChannel;     // �������봥������ʶ��ͨ��
+            public byte byRes;                     
+            public NET_DVR_HANDLEEXCEPTION struAlarmHandleType;/* ������ʽ */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[] struAlarmTime;//����ʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRelRecordChan;//����������¼��ͨ��,Ϊ1��ʾ������ͨ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM, ArraySubType = UnmanagedType.I1)]
+            public byte[] byEnablePreset;/* �Ƿ����Ԥ�õ� 0-��,1-��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM, ArraySubType = UnmanagedType.I1)]
+            public byte[] byPresetNo;/* ���õ���̨Ԥ�õ����,һ������������Ե��ö��ͨ������̨Ԥ�õ�, 0xff��ʾ������Ԥ�õ㡣*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM, ArraySubType = UnmanagedType.I1)]
+            public byte[] byEnableCruise;/* �Ƿ����Ѳ�� 0-��,1-��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM, ArraySubType = UnmanagedType.I1)]
+            public byte[] byCruiseNo;/* Ѳ�� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM, ArraySubType = UnmanagedType.I1)]
+            public byte[] byEnablePtzTrack;/* �Ƿ���� 0-��,1-��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM, ArraySubType = UnmanagedType.I1)]
+            public byte[] byPTZTrack;/* ���õ���̨����� */
+        }
+
+        //ģ�ⱨ�������������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ANALOG_ALARMINCFG
+        {
+            public uint dwSize;
+            public byte	byEnableAlarmHandle; //������������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAlarmInName; //ģ�ⱨ����������
+            public ushort wAlarmInUpper; //ģ�������ѹ���ޣ�ʵ��ֵ��10����Χ0~360
+            public ushort wAlarmInLower; //ģ�������ѹ���ޣ�ʵ��ֵ��10����Χ0~360 
+            public NET_DVR_HANDLEEXCEPTION_V30 struAlarmHandleType;	/* ������ʽ */ 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[] struAlarmTime;//����ʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRelRecordChan; //��������¼��ͨ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 100, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        //�ϴ�������Ϣ(9000��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ALARMINFO_V30
+        {
+            public uint dwAlarmType;/*0-�ź�������,1-Ӳ����,2-�źŶ�ʧ,3���ƶ����,4��Ӳ��δ��ʽ��,5-��дӲ�̳���,6-�ڵ�����,7-��ʽ��ƥ��, 8-�Ƿ�����, 0xa-GPS��λ��Ϣ(���ض���)*/
+            public uint dwAlarmInputNumber;/*��������˿�*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ALARMOUT_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAlarmOutputNumber;/*����������˿ڣ�Ϊ1��ʾ��Ӧ���*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAlarmRelateChannel;/*������¼��ͨ����Ϊ1��ʾ��Ӧ¼��, dwAlarmRelateChannel[0]��Ӧ��1��ͨ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byChannel;/*dwAlarmTypeΪ2��3,6ʱ����ʾ�ĸ�ͨ����dwChannel[0]��Ӧ��1��ͨ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DISKNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDiskNumber;/*dwAlarmTypeΪ1,4,5ʱ,��ʾ�ĸ�Ӳ��, dwDiskNumber[0]��Ӧ��1��Ӳ��*/
+            public void Init()
+            {
+                dwAlarmType = 0;
+                dwAlarmInputNumber = 0;
+                byAlarmRelateChannel = new byte[MAX_CHANNUM_V30];
+                byChannel = new byte[MAX_CHANNUM_V30];
+                byAlarmOutputNumber = new byte[MAX_ALARMOUT_V30];
+                byDiskNumber = new byte[MAX_DISKNUM_V30];
+                for (int i = 0; i < MAX_CHANNUM_V30; i++)
+                {
+                    byAlarmRelateChannel[i] = Convert.ToByte(0);
+                    byChannel[i] = Convert.ToByte(0);
+                }
+                for (int i = 0; i < MAX_ALARMOUT_V30; i++)
+                {
+                    byAlarmOutputNumber[i] = Convert.ToByte(0);
+                }
+                for (int i = 0; i < MAX_DISKNUM_V30; i++)
+                {
+                    byDiskNumber[i] = Convert.ToByte(0);
+                }
+            }
+            public void Reset()
+            {
+                dwAlarmType = 0;
+                dwAlarmInputNumber = 0;
+
+                for (int i = 0; i < MAX_CHANNUM_V30; i++)
+                {
+                    byAlarmRelateChannel[i] = Convert.ToByte(0);
+                    byChannel[i] = Convert.ToByte(0);
+                }
+                for (int i = 0; i < MAX_ALARMOUT_V30; i++)
+                {
+                    byAlarmOutputNumber[i] = Convert.ToByte(0);
+                }
+                for (int i = 0; i < MAX_DISKNUM_V30; i++)
+                {
+                    byDiskNumber[i] = Convert.ToByte(0);
+                }
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ALARM_HOT_SPARE
+        {
+            public uint dwSize;   //�ṹ��
+            public uint dwExceptionCase;   //����ԭ��   0-�����쳣
+            public NET_DVR_IPADDR  struDeviceIP;    //�����쳣���豸IP��ַ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 256, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;         //����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ALARMINFO
+        {
+            public int dwAlarmType;/*0-�ź�������,1-Ӳ����,2-�źŶ�ʧ,3���ƶ����,4��Ӳ��δ��ʽ��,5-��дӲ�̳���,6-�ڵ�����,7-��ʽ��ƥ��, 8-�Ƿ�����, 9-����״̬, 0xa-GPS��λ��Ϣ(���ض���)*/
+            public int dwAlarmInputNumber;/*��������˿�, ����������Ϊ9ʱ�ñ�����ʾ����״̬0��ʾ������ -1��ʾ����*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ALARMOUT, ArraySubType = UnmanagedType.U4)]
+            public int[] dwAlarmOutputNumber;/*����������˿ڣ���һλΪ1��ʾ��Ӧ��һ�����*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM, ArraySubType = UnmanagedType.U4)]
+            public int[] dwAlarmRelateChannel;/*������¼��ͨ������һλΪ1��ʾ��Ӧ��һ·¼��, dwAlarmRelateChannel[0]��Ӧ��1��ͨ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM, ArraySubType = UnmanagedType.U4)]
+            public int[] dwChannel;/*dwAlarmTypeΪ2��3,6ʱ����ʾ�ĸ�ͨ����dwChannel[0]λ��Ӧ��1��ͨ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DISKNUM, ArraySubType = UnmanagedType.U4)]
+            public int[] dwDiskNumber;/*dwAlarmTypeΪ1,4,5ʱ,��ʾ�ĸ�Ӳ��, dwDiskNumber[0]λ��Ӧ��1��Ӳ��*/
+            public void Init()
+            {
+                dwAlarmType = 0;
+                dwAlarmInputNumber = 0;
+                dwAlarmOutputNumber = new int[MAX_ALARMOUT];
+                dwAlarmRelateChannel = new int[MAX_CHANNUM];
+                dwChannel = new int[MAX_CHANNUM];
+                dwDiskNumber = new int[MAX_DISKNUM];
+                for (int i = 0; i < MAX_ALARMOUT; i++)
+                {
+                    dwAlarmOutputNumber[i] = 0;
+                }
+                for (int i = 0; i < MAX_CHANNUM; i++)
+                {
+                    dwAlarmRelateChannel[i] = 0;
+                    dwChannel[i] = 0;
+                }
+                for (int i = 0; i < MAX_DISKNUM; i++)
+                {
+                    dwDiskNumber[i] = 0;
+                }
+            }
+            public void Reset()
+            {
+                dwAlarmType = 0;
+                dwAlarmInputNumber = 0;
+
+                for (int i = 0; i < MAX_ALARMOUT; i++)
+                {
+                    dwAlarmOutputNumber[i] = 0;
+                }
+                for (int i = 0; i < MAX_CHANNUM; i++)
+                {
+                    dwAlarmRelateChannel[i] = 0;
+                    dwChannel[i] = 0;
+                }
+                for (int i = 0; i < MAX_DISKNUM; i++)
+                {
+                    dwDiskNumber[i] = 0;
+                }
+            }
+        }
+
+
+        //////////////////////////////////////////////////////////////////////////////////////
+        //IPC�����������
+        /* IP�豸�ṹ */
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IPDEVINFO
+        {
+            public uint dwEnable;/* ��IP�豸�Ƿ����� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUserName;/* �û��� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassword; /* ���� */
+            public NET_DVR_IPADDR struIP;/* IP��ַ */
+            public ushort wDVRPort;/* �˿ں� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 34, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;/* ���� */
+
+            public void Init()
+            {
+                sUserName = new byte[NAME_LEN];
+                sPassword = new byte[PASSWD_LEN];
+                byRes = new byte[34];
+            }
+        }
+
+        //ipc�����豸��Ϣ��չ��֧��ip�豸����������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IPDEVINFO_V31
+        {
+            public byte byEnable;//��IP�豸�Ƿ���Ч
+            public byte byProType;
+            public byte byEnableQuickAdd;
+            public byte byRes1;//�����ֶΣ���0
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUserName;//�û���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassword;//����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DOMAIN_NAME, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDomain;//�豸����
+            public NET_DVR_IPADDR struIP;//IP��ַ
+            public ushort wDVRPort;// �˿ں�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 34, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;//�����ֶΣ���0
+
+            public void Init()
+            {
+                sUserName = new byte[NAME_LEN];
+                sPassword = new byte[PASSWD_LEN];
+                byDomain = new byte[MAX_DOMAIN_NAME];
+                byRes2 = new byte[34];
+            }
+        }
+
+        /* IPͨ��ƥ����� */
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IPCHANINFO
+        {
+            public byte byEnable;/* ��ͨ���Ƿ����� */
+            public byte byIPID;/* IP�豸ID ȡֵ1- MAX_IP_DEVICE */
+            public byte byChannel;/* ͨ���� */
+            public byte byIPIDHigh; // IP�豸ID�ĸ�8λ
+            public byte byTransProtocol;//����Э������0-TCP/auto(�������豸����)��1-UDP 2-�ಥ 3-��TCP 4-auto
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 31, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;//����,��0
+            public void Init()
+            {
+                byRes = new byte[31];
+            }
+        }
+
+        /* IP�������ýṹ */
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IPPARACFG
+        {
+            public uint dwSize;/* �ṹ��С */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_IP_DEVICE, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_IPDEVINFO[] struIPDevInfo;/* IP�豸 */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ANALOG_CHANNUM, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAnalogChanEnable; /* ģ��ͨ���Ƿ����ã��ӵ͵��߱�ʾ1-32ͨ����0��ʾ��Ч 1��Ч */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_IP_CHANNEL, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_IPCHANINFO[] struIPChanInfo;/* IPͨ�� */
+
+            public void Init()
+            {
+                int i = 0;
+                struIPDevInfo = new NET_DVR_IPDEVINFO[MAX_IP_DEVICE];
+
+                for (i = 0; i < MAX_IP_DEVICE; i++)
+                {
+                    struIPDevInfo[i].Init();
+                }
+                byAnalogChanEnable = new byte[MAX_ANALOG_CHANNUM];
+                struIPChanInfo = new NET_DVR_IPCHANINFO[MAX_IP_CHANNEL];
+                for (i = 0; i < MAX_IP_CHANNEL; i++)
+                {
+                    struIPChanInfo[i].Init();
+                }
+            }
+        }
+
+        /* ��չIP�������ýṹ */
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IPPARACFG_V31
+        {
+            public uint dwSize;/* �ṹ��С */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_IP_DEVICE, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_IPDEVINFO_V31[] struIPDevInfo; /* IP�豸 */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ANALOG_CHANNUM, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAnalogChanEnable; /* ģ��ͨ���Ƿ����ã��ӵ͵��߱�ʾ1-32ͨ����0��ʾ��Ч 1��Ч */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_IP_CHANNEL, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_IPCHANINFO[] struIPChanInfo;/* IPͨ�� */
+
+            public void Init()
+            {
+                int i = 0;
+                struIPDevInfo = new NET_DVR_IPDEVINFO_V31[MAX_IP_DEVICE];
+
+                for (i = 0; i < MAX_IP_DEVICE; i++)
+                {
+                    struIPDevInfo[i].Init();
+                }
+                byAnalogChanEnable = new byte[MAX_ANALOG_CHANNUM];
+                struIPChanInfo = new NET_DVR_IPCHANINFO[MAX_IP_CHANNEL];
+                for (i = 0; i < MAX_IP_CHANNEL; i++)
+                {
+                    struIPChanInfo[i].Init();
+                }
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IPSERVER_STREAM
+        {
+            public byte  byEnable;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[]  byRes;
+            public NET_DVR_IPADDR struIPServer;
+            public ushort  wPort;
+            public ushort  wDvrNameLen;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[]  byDVRName;
+            public ushort  wDVRSerialLen;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.U2)]
+            public ushort[]  byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = SERIALNO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[]  byDVRSerialNumber;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[]  byUserName;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[]  byPassWord;
+            public byte  byChannel;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 11, ArraySubType = UnmanagedType.I1)]
+            public byte[]  byRes2;
+            public void Init()
+            {
+                byRes = new byte[3];
+                byDVRName = new byte[NAME_LEN];
+                byRes1 = new ushort[2];
+                byDVRSerialNumber = new byte[SERIALNO_LEN];
+                byUserName = new byte[NAME_LEN];
+                byPassWord = new byte[PASSWD_LEN];
+                byRes2 = new byte[11];
+            }
+        }
+
+        /*��ý���������������*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_STREAM_MEDIA_SERVER_CFG
+        {
+            public byte byValid;/*�Ƿ�������ý�������ȡ��,0��ʾ��Ч����0��ʾ��Ч*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_DVR_IPADDR struDevIP;
+            public ushort wDevPort;/*��ý��������˿�*/
+            public byte byTransmitType;/*���������� 0-TCP��1-UDP*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 69, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+        //�豸ͨ����Ϣ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DEV_CHAN_INFO
+        {
+            public NET_DVR_IPADDR struIP;		    //DVR IP��ַ
+            public ushort wDVRPort;			 	//�˿ں�
+            public byte byChannel;				//ͨ����
+            public byte byTransProtocol;		//����������0-TCP��1-UDP
+            public byte byTransMode;			//��������ģʽ 0�������� 1��������
+            public byte byFactoryType;			/*ǰ���豸��������,ͨ���ӿڻ�ȡ*/
+            public byte byDeviceType; //�豸����(��Ƶ�ۺ�ƽ̨���ܰ�ʹ��)��1-����������ʱ������Ƶ�ۺ�ƽ̨��������byVcaSupportChanMode�ֶ���������ʹ�ý���ͨ��������ʾͨ������2-������
+            public byte byDispChan;//��ʾͨ����,��������ʹ��
+            public byte bySubDispChan;//��ʾͨ����ͨ���ţ���������ʱʹ��
+            public byte byResolution;	//; 1-CIF 2-4CIF 3-720P 4-1080P 5-500w����������ʹ�ã���������������ݸò������������Դ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DOMAIN_NAME, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDomain;	//�豸����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUserName;	//����������½�ʺ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassword;	//������������
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PU_STREAM_CFG
+        {
+            public uint dwSize;
+            public NET_DVR_STREAM_MEDIA_SERVER_CFG struStreamMediaSvrCfg;
+            public NET_DVR_DEV_CHAN_INFO struDevChanInfo;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DDNS_STREAM_CFG
+        {
+            public byte byEnable;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_DVR_IPADDR struStreamServer;
+            public ushort wStreamServerPort;
+            public byte byStreamServerTransmitType;
+            public byte byRes2;
+            public NET_DVR_IPADDR struIPServer;
+            public ushort wIPServerPort;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes3;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sDVRName;
+            public ushort wDVRNameLen;
+            public ushort wDVRSerialLen;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = SERIALNO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sDVRSerialNumber;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUserName;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassWord;
+            public ushort wDVRPort;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes4;
+            public byte byChannel;
+            public byte byTransProtocol;
+            public byte byTransMode;
+            public byte byFactoryType;
+            public void Init()
+            {
+                byRes1 = new byte[3];
+                byRes3 = new byte[2];
+                sDVRName = new byte[NAME_LEN];
+                sDVRSerialNumber = new byte[SERIALNO_LEN];
+                sUserName = new byte[NAME_LEN];
+                sPassWord = new byte[PASSWD_LEN];
+                byRes4 = new byte[2];
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PU_STREAM_URL
+        {
+            public byte byEnable;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 240, ArraySubType = UnmanagedType.I1)]
+            public byte[] strURL;
+            public byte byTransPortocol;
+            public ushort wIPID;
+            public byte byChannel;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 7, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public void Init()
+            {
+                strURL = new byte[240];
+                byRes = new byte[7];
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_HKDDNS_STREAM
+        {
+            public byte byEnable;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDDNSDomain;
+            public ushort wPort;
+            public ushort wAliasLen;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAlias;
+            public ushort wDVRSerialLen;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = SERIALNO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDVRSerialNumber;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byUserName;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byPassWord;
+            public byte byChannel;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 11, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+            public void Init()
+            {
+                byRes = new byte[3];
+                byDDNSDomain = new byte[64];
+                byAlias = new byte[NAME_LEN];
+                byRes1 = new byte[2];
+                byDVRSerialNumber = new byte[SERIALNO_LEN];
+                byUserName = new byte[NAME_LEN];
+                byPassWord = new byte[PASSWD_LEN];
+                byRes2 = new byte[11];
+            }
+        }
+
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IPCHANINFO_V40
+        {
+            public byte byEnable;				/* ��ͨ���Ƿ����� */
+            public byte byRes1;
+            public ushort wIPID;                  //IP�豸ID
+            public uint dwChannel;				//ͨ����
+            public byte byTransProtocol;		//����������0-TCP��1-UDP
+            public byte byTransMode;			//��������ģʽ 0�������� 1��������
+            public byte byFactoryType;			/*ǰ���豸��������,ͨ���ӿڻ�ȡ*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 241, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayout(LayoutKind.Explicit)]
+        public struct NET_DVR_GET_STREAM_UNION
+        {
+            [FieldOffset(0)]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 492, ArraySubType = UnmanagedType.I1)]
+            public byte[] byUnion;
+            public void Init()
+            {
+                byUnion = new byte[492];
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_STREAM_MODE
+        {
+            public byte byGetStreamType;/*ȡ����ʽ��0- ֱ�Ӵ��豸ȡ����1- ����ý��ȡ����2- ͨ��IPServer���IP��ַ��ȡ����
+                                          * 3- ͨ��IPServer�ҵ��豸����ͨ����ý��ȡ�豸������ 4- ͨ����ý����URLȥȡ����
+                                          * 5- ͨ��hiDDNS���������豸Ȼ����豸ȡ�� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[]  byRes;
+            public NET_DVR_GET_STREAM_UNION uGetStream;
+            public void Init()
+            {
+                byGetStreamType = 0;
+                byRes = new byte[3];
+                //uGetStream.Init();
+            }
+        }
+
+        /* V40��չIP�������ýṹ */
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IPPARACFG_V40
+        {
+            public uint dwSize;/* �ṹ��С */
+            public uint dwGroupNum;
+            public uint dwAChanNum;
+            public uint dwDChanNum;
+            public uint dwStartDChan;
+
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAnalogChanEnable; /* ģ��ͨ���Ƿ����ã��ӵ͵��߱�ʾ1-32ͨ����0��ʾ��Ч 1��Ч */
+
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_IP_DEVICE_V40, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_IPDEVINFO_V31[] struIPDevInfo; /* IP�豸 */
+
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_STREAM_MODE[] struStreamMode;/* IPͨ�� */
+
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2; /* ģ��ͨ���Ƿ����ã��ӵ͵��߱�ʾ1-32ͨ����0��ʾ��Ч 1��Ч */
+        }
+
+        //ΪCVR��չ�ı�������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ALARMINFO_DEV
+        {
+            public uint dwAlarmType;  //0-������(ͨ��)�ź���������1-˽�о����𻵣�2- NVR�����˳���
+	        //3-������״̬�쳣��4-ϵͳʱ���쳣��5-¼���ʣ���������ͣ�
+	        //6-������(ͨ��)�ƶ���ⱨ����7-������(ͨ��)�ڵ�������
+            public NET_DVR_TIME   struTime;     //����ʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;    //����
+            public uint dwNumber;     //��Ŀ
+            public IntPtr pNO;  //dwNumber��WORD; ÿ��WORD��ʾһ��ͨ���ţ����ߴ��̺�, ��ЧʱΪ0
+        }
+
+        /* ����������� */
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IPALARMOUTINFO
+        {
+            public byte byIPID;/* IP�豸IDȡֵ1- MAX_IP_DEVICE */
+            public byte byAlarmOut;/* ��������� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 18, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;/* ���� */
+
+            public void Init()
+            {
+                byRes = new byte[18];
+            }
+        }
+
+        /* IP����������ýṹ */
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IPALARMOUTCFG
+        {
+            public uint dwSize; /* �ṹ��С */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_IP_ALARMOUT, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_IPALARMOUTINFO[] struIPAlarmOutInfo;/* IP������� */
+
+            public void Init()
+            {
+                struIPAlarmOutInfo = new NET_DVR_IPALARMOUTINFO[MAX_IP_ALARMOUT];
+                for (int i = 0; i < MAX_IP_ALARMOUT; i++)
+                {
+                    struIPAlarmOutInfo[i].Init();
+                }
+            }
+        }
+        /* IP����������� */
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IPALARMOUTINFO_V40
+        {
+            public uint dwIPID;					/* IP�豸ID */
+            public uint dwAlarmOut;				/* IP�豸ID��Ӧ�ı�������� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;				/* ���� */
+        }
+
+        /*IP�������*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IPALARMOUTCFG_V40
+        {
+            public uint dwSize;  //�ṹ�峤��
+            public uint dwCurIPAlarmOutNum;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_IP_ALARMOUT_V40, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_IPALARMOUTINFO_V40[] struIPAlarmOutInfo;/*IP�������*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 256, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        /* ����������� */
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IPALARMININFO
+        {
+            public byte byIPID;/* IP�豸IDȡֵ1- MAX_IP_DEVICE */
+            public byte byAlarmIn;/* ��������� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 18, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;/* ���� */
+        }
+
+        /* IP�����������ýṹ */
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IPALARMINCFG
+        {
+            public uint dwSize;/* �ṹ��С */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_IP_ALARMIN, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_IPALARMININFO[] struIPAlarmInInfo;/* IP�������� */
+        }
+        /* IP����������� */
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IPALARMININFO_V40
+        {
+            public uint dwIPID;					/* IP�豸ID */
+            public uint dwAlarmIn;				/* IP�豸ID��Ӧ�ı�������� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;				/* ���� */
+        }
+         /*IP����������Դ*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IPALARMINCFG_V40
+        {
+            public uint dwSize;  //�ṹ�峤��
+            public uint dwCurIPAlarmInNum;  //��ǰ�����������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_IP_ALARMIN_V40, ArraySubType = UnmanagedType.I1)]
+            public NET_DVR_IPALARMININFO_V40[] struIPAlarmInInfo;/* IP��������*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 256, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //ipc alarm info
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IPALARMINFO
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_IP_DEVICE, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_IPDEVINFO[] struIPDevInfo; /* IP�豸 */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ANALOG_CHANNUM, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAnalogChanEnable; /* ģ��ͨ���Ƿ����ã�0-δ���� 1-���� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_IP_CHANNEL, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_IPCHANINFO[] struIPChanInfo;/* IPͨ�� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_IP_ALARMIN, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_IPALARMININFO[] struIPAlarmInInfo;/* IP�������� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_IP_ALARMOUT, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_IPALARMOUTINFO[] struIPAlarmOutInfo;/* IP������� */
+        }
+
+        //ipc���øı䱨����Ϣ��չ 9000_1.1
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IPALARMINFO_V31
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_IP_DEVICE, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_IPDEVINFO_V31[] struIPDevInfo; /* IP�豸 */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ANALOG_CHANNUM, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAnalogChanEnable;/* ģ��ͨ���Ƿ����ã�0-δ���� 1-���� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_IP_CHANNEL, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_IPCHANINFO[] struIPChanInfo;/* IPͨ�� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_IP_ALARMIN, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_IPALARMININFO[] struIPAlarmInInfo; /* IP�������� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_IP_ALARMOUT, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_IPALARMOUTINFO[] struIPAlarmOutInfo;/* IP������� */
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IPALARMINFO_V40
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_IP_DEVICE_V40, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_IPDEVINFO_V31[] struIPDevInfo;           // IP�豸
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAnalogChanEnable;           /* ģ��ͨ���Ƿ����ã�0-δ���� 1-���� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_IPCHANINFO[] struIPChanInfo;	        /* IPͨ�� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_IP_ALARMIN, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_IPALARMININFO[] struIPAlarmInInfo;    /* IP�������� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_IP_ALARMOUT, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_IPALARMOUTINFO[] struIPAlarmOutInfo; /* IP������� */   
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;                          // �����ֽ�
+        }
+
+        public enum HD_STAT
+        {
+            HD_STAT_OK = 0,/* ���� */
+            HD_STAT_UNFORMATTED = 1,/* δ��ʽ�� */
+            HD_STAT_ERROR = 2,/* ���� */
+            HD_STAT_SMART_FAILED = 3,/* SMART״̬ */
+            HD_STAT_MISMATCH = 4,/* ��ƥ�� */
+            HD_STAT_IDLE = 5, /* ����*/
+            NET_HD_STAT_OFFLINE = 6,/*�����̴���δ����״̬ */
+            HD_RIADVD_EXPAND = 7,    /* ������̿����� */
+            HD_STAT_REPARING = 10,   /* Ӳ�������޸�(9000 2.0) */
+            HD_STAT_FORMATING = 11,   /* Ӳ�����ڸ�ʽ��(9000 2.0) */ 
+        }
+
+        //����Ӳ����Ϣ����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SINGLE_HD
+        {
+            public uint dwHDNo;/*Ӳ�̺�, ȡֵ0~MAX_DISKNUM_V30-1*/
+            public uint dwCapacity;/*Ӳ������(��������)*/
+            public uint dwFreeSpace;/*Ӳ��ʣ��ռ�(��������)*/
+            public uint dwHdStatus;/*Ӳ��״̬(��������) HD_STAT*/
+            public byte byHDAttr;/*0-Ĭ��, 1-����; 2-ֻ��*/
+            public byte byHDType;/*0-����Ӳ��,1-ESATAӲ��,2-NASӲ��*/
+            public byte byDiskDriver;   // ֵ ������ASCII�ַ� 
+            public byte byRes1;
+            public uint dwHdGroup; /*�����ĸ����� 1-MAX_HD_GROUP*/
+            public byte byRecycling;   // �Ƿ�ѭ������ 0����ѭ�����ã�1��ѭ������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+            public uint dwStorageType;    //��λ��ʾ 0-��֧�� ��0-֧��
+							// dwStorageType & 0x1 ��ʾ�Ƿ�����ͨ¼��ר�ô洢��     
+							// dwStorageType & 0x2  ��ʾ�Ƿ��dz�֡¼��ר�ô洢��
+							// dwStorageType & 0x4 ��ʾ�Ƿ���ͼƬ¼��ר�ô洢��
+
+            public uint dwPictureCapacity; //Ӳ��ͼƬ����(��������)����λ:MB
+            public uint dwFreePictureSpace; //ʣ��ͼƬ�ռ�(��������)����λ:MB
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 104, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes3;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_HDCFG
+        {
+            public uint dwSize;
+            public uint dwHDCount;/*Ӳ����(��������)*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DISKNUM_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SINGLE_HD[] struHDInfo;//Ӳ����ز�������Ҫ����������Ч��
+        }
+
+        //����������Ϣ������չ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SINGLE_HDGROUP_V40
+        {
+            public uint dwHDGroupNo;       /*�����(��������) 1-MAX_HD_GROUP*/    
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwRelRecordChan;  //������¼��ͨ������ֵ��ʾ������0xffffffffʱ������Ϊ��Ч    
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;				/* ���� */
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_HDGROUP_CFG_V40
+        {
+            public uint dwSize;                //�ṹ���С
+            public uint dwMaxHDGroupNum; 		  //�豸֧�ֵ����������-ֻ��
+            public uint dwCurHDGroupNum;       /*��ǰ���õ�������*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_HD_GROUP, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SINGLE_HDGROUP_V40[] struHDGroupAttr; //Ӳ����ز�������Ҫ����������Ч��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; //����
+        }
+
+        //����������Ϣ����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SINGLE_HDGROUP
+        {
+            public uint dwHDGroupNo;/*�����(��������) 1-MAX_HD_GROUP*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byHDGroupChans;/*�����Ӧ��¼��ͨ��, 0-��ʾ��ͨ����¼�󵽸����飬1-��ʾ¼�󵽸�����*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_HDGROUP_CFG
+        {
+            public uint dwSize;
+            public uint dwHDGroupCount;/*��������(��������)*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_HD_GROUP, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SINGLE_HDGROUP[] struHDGroupAttr;//Ӳ����ز�������Ҫ����������Ч
+        }
+
+        //�������Ų����Ľṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SCALECFG
+        {
+            public uint dwSize;
+            public uint dwMajorScale;/* ����ʾ 0-�����ţ�1-����*/
+            public uint dwMinorScale;/* ����ʾ 0-�����ţ�1-����*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwRes;
+        }
+
+        //DVR�������(9000��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ALARMOUTCFG_V30
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sAlarmOutName;/* ���� */
+            public uint dwAlarmOutDelay;/* �������ʱ��(-1Ϊ���ޣ��ֶ��ر�) */
+            //0-5��,1-10��,2-30��,3-1����,4-2����,5-5����,6-10����,7-�ֶ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[] struAlarmOutTime;/* �����������ʱ��� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //DVR�������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ALARMOUTCFG
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sAlarmOutName;/* ���� */
+            public uint dwAlarmOutDelay;/* �������ʱ��(-1Ϊ���ޣ��ֶ��ر�) */
+            //0-5��,1-10��,2-30��,3-1����,4-2����,5-5����,6-10����,7-�ֶ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[] struAlarmOutTime;/* �����������ʱ��� */
+        }
+
+        //DVR����Ԥ������(9000��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PREVIEWCFG_V30
+        {
+            public uint dwSize;
+            public byte byPreviewNumber;//Ԥ����Ŀ,0-1����,1-4����,2-9����,3-16����,0xff:�����
+            public byte byEnableAudio;//�Ƿ�����Ԥ��,0-��Ԥ��,1-Ԥ��
+            public ushort wSwitchTime;//�л�ʱ��,0-���л�,1-5s,2-10s,3-20s,4-30s,5-60s,6-120s,7-300s
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_PREVIEW_MODE * MAX_WINDOW_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] bySwitchSeq;//�л�˳��,���lSwitchSeq[i]Ϊ 0xff��ʾ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 24, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //DVR����Ԥ������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PREVIEWCFG
+        {
+            public uint dwSize;
+            public byte byPreviewNumber;//Ԥ����Ŀ,0-1����,1-4����,2-9����,3-16����,0xff:�����
+            public byte byEnableAudio;//�Ƿ�����Ԥ��,0-��Ԥ��,1-Ԥ��
+            public ushort wSwitchTime;//�л�ʱ��,0-���л�,1-5s,2-10s,3-20s,4-30s,5-60s,6-120s,7-300s
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_WINDOW, ArraySubType = UnmanagedType.I1)]
+            public byte[] bySwitchSeq;//�л�˳��,���lSwitchSeq[i]Ϊ 0xff��ʾ����
+        }
+
+        //DVR��Ƶ���
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VGAPARA
+        {
+            public ushort wResolution;/* �ֱ��� */
+            public ushort wFreq;/* ˢ��Ƶ�� */
+            public uint dwBrightness;/* ���� */
+        }
+
+        //MATRIX��������ṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MATRIXPARA_V30
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ANALOG_CHANNUM, ArraySubType = UnmanagedType.U2)]
+            public ushort[] wOrder;/* Ԥ��˳��, 0xff��ʾ��Ӧ�Ĵ��ڲ�Ԥ�� */
+            public ushort wSwitchTime;// Ԥ���л�ʱ�� 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 14, ArraySubType = UnmanagedType.I1)]
+            public byte[] res;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MATRIXPARA
+        {
+            public ushort wDisplayLogo;/* ��ʾ��Ƶͨ���� */
+            public ushort wDisplayOsd;/* ��ʾʱ�� */
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VOOUT
+        {
+            public byte byVideoFormat;/* �����ʽ,0-PAL,1-NTSC */
+            public byte byMenuAlphaValue;/* �˵��뱳��ͼ��Աȶ� */
+            public ushort wScreenSaveTime;/* ��Ļ����ʱ�� 0-�Ӳ�,1-1����,2-2����,3-5����,4-10����,5-20����,6-30���� */
+            public ushort wVOffset;/* ��Ƶ���ƫ�� */
+            public ushort wBrightness;/* ��Ƶ������� */
+            public byte byStartMode;/* ��������Ƶ���ģʽ(0:�˵�,1:Ԥ��)*/
+            public byte byEnableScaler;/* �Ƿ��������� (0-������, 1-����)*/
+        }
+
+        //DVR��Ƶ���(9000��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VIDEOOUT_V30
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_VIDEOOUT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_VOOUT[] struVOOut;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_VGA_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_VGAPARA[] struVGAPara;/* VGA���� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_MATRIXOUT, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_MATRIXPARA_V30[] struMatrixPara;/* MATRIX���� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //DVR��Ƶ���
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VIDEOOUT
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_VIDEOOUT, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_VOOUT[] struVOOut;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_VGA, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_VGAPARA[] struVGAPara;	/* VGA���� */
+            public NET_DVR_MATRIXPARA struMatrixPara;/* MATRIX���� */
+        }
+
+        //���û�����(�ӽṹ)(��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_USER_INFO_V40
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUserName;			/* �û���ֻ����16�ֽ� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassword;			/* ���� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_RIGHT, ArraySubType = UnmanagedType.I1)]
+            public byte[] byLocalRight;	/* ����Ȩ�� */
+            /*����0: ���ؿ�����̨*/
+            /*����1: �����ֶ�¼��*/
+            /*����2: ���ػط�*/
+            /*����3: ��������*/
+            /*����4: ���ز鿴״̬����־*/
+            /*����5: ���ظ߼�����(��������ʽ�����������ػ�)*/
+            /*����6: ���ز鿴���� */
+            /*����7: ���ع���ģ���IP camera */
+            /*����8: ���ر��� */
+            /*����9: ���عػ�/���� */    
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_RIGHT, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRemoteRight;/* Զ��Ȩ�� */	
+            /*����0: Զ�̿�����̨*/
+            /*����1: Զ���ֶ�¼��*/
+            /*����2: Զ�̻ط� */
+            /*����3: Զ�����ò���*/
+            /*����4: Զ�̲鿴״̬����־*/
+            /*����5: Զ�̸߼�����(��������ʽ�����������ػ�)*/
+            /*����6: Զ�̷��������Խ�*/
+            /*����7: Զ��Ԥ��*/
+            /*����8: Զ�����󱨾��ϴ����������*/
+            /*����9: Զ�̿��ƣ��������*/
+            /*����10: Զ�̿��ƴ���*/
+            /*����11: Զ�̲鿴���� */
+            /*����12: Զ�̹���ģ���IP camera */
+            /*����13: Զ�̹ػ�/���� */	
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwNetPreviewRight;			/* Զ�̿���Ԥ����ͨ������ǰ����˳�����У�����0xffffffff������Ϊ��Ч*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwLocalRecordRight;			/* ���ؿ���¼���ͨ������ǰ����˳�����У�����0xffffffff������Ϊ��Ч*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwNetRecordRight;			/* Զ�̿���¼���ͨ������ǰ����˳�����У�����0xffffffff������Ϊ��Ч*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwLocalPlaybackRight;			/* ���ؿ��Իطŵ�ͨ������ǰ����˳�����У�����0xffffffff������Ϊ��Ч*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwNetPlaybackRight;			/* Զ�̿��Իطŵ�ͨ������ǰ����˳�����У�����0xffffffff������Ϊ��Ч*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwLocalPTZRight;				/* ���ؿ���PTZ��ͨ������ǰ����˳�����У�����0xffffffff������Ϊ��Ч*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwNetPTZRight;				/* Զ�̿���PTZ��ͨ������ǰ����˳�����У�����0xffffffff������Ϊ��Ч*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwLocalBackupRight;			/* ���ر���Ȩ��ͨ������ǰ����˳�����У�����0xffffffff������Ϊ��Ч*/
+            public NET_DVR_IPADDR	struUserIP;				/* �û�IP��ַ(Ϊ0ʱ��ʾ�����κε�ַ) */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MACADDR_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byMACAddr;	/* ������ַ */
+            public byte byPriority;				/* ���ȼ���0xff-�ޣ�0--�ͣ�1--�У�2--�� */
+                                    /* �ޡ�����ʾ��֧�����ȼ�������
+                                    �͡���Ĭ��Ȩ��:�������غ�Զ�̻ط�,���غ�Զ�̲鿴��־��״̬,���غ�Զ�̹ػ�/����
+                                    �С����������غ�Զ�̿�����̨,���غ�Զ���ֶ�¼��,���غ�Զ�̻ط�,�����Խ���Զ��Ԥ�������ر���,����/Զ�̹ػ�/����
+                                    �ߡ�������Ա */
+            public byte byAlarmOnRight;         // ��������ڲ���Ȩ�� 1-��Ȩ�ޣ�0-��Ȩ��
+            public byte byAlarmOffRight;         // ��������ڳ���Ȩ�� 1-��Ȩ�ޣ�0-��Ȩ��
+            public byte byBypassRight;           // �����������·Ȩ�� 1-��Ȩ�ޣ�0-��Ȩ�� 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 118, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;	
+        }
+
+        //���û�����(�ӽṹ)(9000��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_USER_INFO_V30
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUserName;/* �û��� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassword;/* ���� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_RIGHT, ArraySubType = UnmanagedType.I1)]
+            public byte[] byLocalRight;/* ����Ȩ�� */
+            /*����0: ���ؿ�����̨*/
+            /*����1: �����ֶ�¼��*/
+            /*����2: ���ػط�*/
+            /*����3: ��������*/
+            /*����4: ���ز鿴״̬����־*/
+            /*����5: ���ظ߼�����(��������ʽ�����������ػ�)*/
+            /*����6: ���ز鿴���� */
+            /*����7: ���ع���ģ���IP camera */
+            /*����8: ���ر��� */
+            /*����9: ���عػ�/���� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_RIGHT, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRemoteRight;/* Զ��Ȩ�� */
+            /*����0: Զ�̿�����̨*/
+            /*����1: Զ���ֶ�¼��*/
+            /*����2: Զ�̻ط� */
+            /*����3: Զ�����ò���*/
+            /*����4: Զ�̲鿴״̬����־*/
+            /*����5: Զ�̸߼�����(��������ʽ�����������ػ�)*/
+            /*����6: Զ�̷��������Խ�*/
+            /*����7: Զ��Ԥ��*/
+            /*����8: Զ�����󱨾��ϴ����������*/
+            /*����9: Զ�̿��ƣ��������*/
+            /*����10: Զ�̿��ƴ���*/
+            /*����11: Զ�̲鿴���� */
+            /*����12: Զ�̹���ģ���IP camera */
+            /*����13: Զ�̹ػ�/���� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byNetPreviewRight;/* Զ�̿���Ԥ����ͨ�� 0-��Ȩ�ޣ�1-��Ȩ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byLocalPlaybackRight;/* ���ؿ��Իطŵ�ͨ�� 0-��Ȩ�ޣ�1-��Ȩ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byNetPlaybackRight;/* Զ�̿��Իطŵ�ͨ�� 0-��Ȩ�ޣ�1-��Ȩ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byLocalRecordRight;/* ���ؿ���¼���ͨ�� 0-��Ȩ�ޣ�1-��Ȩ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byNetRecordRight;/* Զ�̿���¼���ͨ�� 0-��Ȩ�ޣ�1-��Ȩ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byLocalPTZRight;/* ���ؿ���PTZ��ͨ�� 0-��Ȩ�ޣ�1-��Ȩ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byNetPTZRight;/* Զ�̿���PTZ��ͨ�� 0-��Ȩ�ޣ�1-��Ȩ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byLocalBackupRight;/* ���ر���Ȩ��ͨ�� 0-��Ȩ�ޣ�1-��Ȩ��*/
+            public NET_DVR_IPADDR struUserIP;/* �û�IP��ַ(Ϊ0ʱ��ʾ�����κε�ַ) */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MACADDR_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byMACAddr;/* ������ַ */
+            public byte byPriority;/* ���ȼ���0xff-�ޣ�0--�ͣ�1--�У�2--�� */
+            /*
+            �ޡ�����ʾ��֧�����ȼ�������
+            �͡���Ĭ��Ȩ��:�������غ�Զ�̻ط�,���غ�Զ�̲鿴��־��״̬,���غ�Զ�̹ػ�/����
+            �С����������غ�Զ�̿�����̨,���غ�Զ���ֶ�¼��,���غ�Զ�̻ط�,�����Խ���Զ��Ԥ��
+                  ���ر���,����/Զ�̹ػ�/����
+            �ߡ�������Ա
+            */
+            public byte byAlarmOnRight;         // ��������ڲ���Ȩ��
+            public byte byAlarmOffRight;        // ��������ڳ���Ȩ��
+            public byte byBypassRight;          // �����������·Ȩ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 14, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //���û�����(SDK_V15��չ)(�ӽṹ)
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_USER_INFO_EX
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUserName;/* �û��� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassword;/* ���� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_RIGHT, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwLocalRight;/* Ȩ�� */
+            /*����0: ���ؿ�����̨*/
+            /*����1: �����ֶ�¼��*/
+            /*����2: ���ػط�*/
+            /*����3: ��������*/
+            /*����4: ���ز鿴״̬����־*/
+            /*����5: ���ظ߼�����(��������ʽ�����������ػ�)*/
+            public uint dwLocalPlaybackRight;/* ���ؿ��Իطŵ�ͨ�� bit0 -- channel 1*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_RIGHT, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwRemoteRight;/* Ȩ�� */
+            /*����0: Զ�̿�����̨*/
+            /*����1: Զ���ֶ�¼��*/
+            /*����2: Զ�̻ط� */
+            /*����3: Զ�����ò���*/
+            /*����4: Զ�̲鿴״̬����־*/
+            /*����5: Զ�̸߼�����(��������ʽ�����������ػ�)*/
+            /*����6: Զ�̷��������Խ�*/
+            /*����7: Զ��Ԥ��*/
+            /*����8: Զ�����󱨾��ϴ����������*/
+            /*����9: Զ�̿��ƣ��������*/
+            /*����10: Զ�̿��ƴ���*/
+            public uint dwNetPreviewRight;/* Զ�̿���Ԥ����ͨ�� bit0 -- channel 1*/
+            public uint dwNetPlaybackRight;/* Զ�̿��Իطŵ�ͨ�� bit0 -- channel 1*/
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sUserIP;/* �û�IP��ַ(Ϊ0ʱ��ʾ�����κε�ַ) */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MACADDR_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byMACAddr;/* ������ַ */
+        }
+
+        //���û�����(�ӽṹ)
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_USER_INFO
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUserName;/* �û��� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassword;/* ���� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_RIGHT, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwLocalRight;/* Ȩ�� */
+            /*����0: ���ؿ�����̨*/
+            /*����1: �����ֶ�¼��*/
+            /*����2: ���ػط�*/
+            /*����3: ��������*/
+            /*����4: ���ز鿴״̬����־*/
+            /*����5: ���ظ߼�����(��������ʽ�����������ػ�)*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_RIGHT, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwRemoteRight;/* Ȩ�� */
+            /*����0: Զ�̿�����̨*/
+            /*����1: Զ���ֶ�¼��*/
+            /*����2: Զ�̻ط� */
+            /*����3: Զ�����ò���*/
+            /*����4: Զ�̲鿴״̬����־*/
+            /*����5: Զ�̸߼�����(��������ʽ�����������ػ�)*/
+            /*����6: Զ�̷��������Խ�*/
+            /*����7: Զ��Ԥ��*/
+            /*����8: Զ�����󱨾��ϴ����������*/
+            /*����9: Զ�̿��ƣ��������*/
+            /*����10: Զ�̿��ƴ���*/
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sUserIP;/* �û�IP��ַ(Ϊ0ʱ��ʾ�����κε�ַ) */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MACADDR_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byMACAddr;/* ������ַ */
+        }
+        
+        //���û�����(�ӽṹ)(��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_USER_INFO_V51
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUserName;            /* �û���ֻ����16�ֽ� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassword;            /* ���� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_RIGHT, ArraySubType = UnmanagedType.I1)]
+            public byte[] byLocalRight;    /* ����Ȩ�� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_RIGHT, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRemoteRight;/* Զ��Ȩ�� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwNetPreviewRight;            /* Զ�̿���Ԥ����ͨ������ǰ����˳�����У�����0xffffffff������Ϊ��Ч*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwLocalRecordRight;            /* ���ؿ���¼���ͨ������ǰ����˳�����У�����0xffffffff������Ϊ��Ч*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwNetRecordRight;            /* Զ�̿���¼���ͨ������ǰ����˳�����У�����0xffffffff������Ϊ��Ч*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwLocalPlaybackRight;            /* ���ؿ��Իطŵ�ͨ������ǰ����˳�����У�����0xffffffff������Ϊ��Ч*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwNetPlaybackRight;            /* Զ�̿��Իطŵ�ͨ������ǰ����˳�����У�����0xffffffff������Ϊ��Ч*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwLocalPTZRight;                /* ���ؿ���PTZ��ͨ������ǰ����˳�����У�����0xffffffff������Ϊ��Ч*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwNetPTZRight;                /* Զ�̿���PTZ��ͨ������ǰ����˳�����У�����0xffffffff������Ϊ��Ч*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwLocalBackupRight;            /* ���ر���Ȩ��ͨ������ǰ����˳�����У�����0xffffffff������Ϊ��Ч*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwLocalPreviewRight;		/* ����Ԥ��Ȩ��ͨ������ǰ����˳�����У�����0xffffffff������Ϊ��Ч*/
+            public NET_DVR_IPADDR struUserIP;                /* �û�IP��ַ(Ϊ0ʱ��ʾ�����κε�ַ) */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MACADDR_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byMACAddr;    /* ������ַ */
+            public byte byPriority;                /* ���ȼ���0xff-�ޣ�0--�ͣ�1--�У�2--�� */
+            public byte byAlarmOnRight;         // ��������ڲ���Ȩ�� 1-��Ȩ�ޣ�0-��Ȩ��
+            public byte byAlarmOffRight;         // ��������ڳ���Ȩ�� 1-��Ȩ�ޣ�0-��Ȩ��
+            public byte byBypassRight;           // �����������·Ȩ�� 1-��Ȩ�ޣ�0-��Ȩ�� 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;               //���ֽڶ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_RIGHT, ArraySubType = UnmanagedType.I1)]
+            public byte[] byPublishRight;  //��Ϣ����ר��Ȩ��
+            public uint dwPasswordValidity;   //������Ч��,������Ա�û������޸�,��λ���죬��0��ʾ������Ч
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byKeypadPassword;    //��������
+            public byte byUserOperateType;    //�û��������ͣ�1-�����û���2-�����û���3-�����û�+�����û�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 1007, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+       }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_USER_V51
+        {
+            public uint dwSize;  //�ṹ���С
+            public uint dwMaxUserNum; //�豸֧�ֵ�����û���-ֻ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_USERNUM_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_USER_INFO_V51[] struUser;  /* �û����� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sloginPassword;          /* ��½����ȷ�� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 240, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; //����
+        }
+
+        //DVR�û�����(��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_USER_V40
+        {
+            public uint dwSize;  //�ṹ���С
+            public uint dwMaxUserNum; //�豸֧�ֵ�����û���-ֻ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_USERNUM_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_USER_INFO_V40[] struUser;  /* �û����� */
+        }
+
+        //DVR�û�����(9000��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_USER_V30
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_USERNUM_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_USER_INFO_V30[] struUser;
+        }
+
+        //DVR�û�����(SDK_V15��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_USER_EX
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_USERNUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_USER_INFO_EX[] struUser;
+        }
+
+        //DVR�û�����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_USER
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_USERNUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_USER_INFO[] struUser;
+        }
+
+        //�쳣����������չ�ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_EXCEPTION_V40
+        {
+            public uint dwSize ;             //�ṹ���С
+            public uint dwMaxGroupNum ;    //�豸֧�ֵ��������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_EXCEPTIONNUM_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_HANDLEEXCEPTION_V41[] struExceptionHandle;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;          //����
+        } 
+
+        //DVR�쳣����(9000��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_EXCEPTION_V30
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_EXCEPTIONNUM_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_HANDLEEXCEPTION_V30[] struExceptionHandleType;
+            /*����0-����,1- Ӳ�̳���,2-���߶�,3-��������IP ��ַ��ͻ, 4-�Ƿ�����, 5-����/�����Ƶ��ʽ��ƥ��, 6-��Ƶ�ź��쳣, 7-¼���쳣*/
+        }
+
+        //DVR�쳣����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_EXCEPTION
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_EXCEPTIONNUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_HANDLEEXCEPTION[] struExceptionHandleType;
+            /*����0-����,1- Ӳ�̳���,2-���߶�,3-��������IP ��ַ��ͻ,4-�Ƿ�����, 5-����/�����Ƶ��ʽ��ƥ��, 6-��Ƶ�ź��쳣*/
+        }
+
+        //ͨ��״̬(9000��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CHANNELSTATE_V30
+        {
+            public byte byRecordStatic;//ͨ���Ƿ���¼��,0-��¼��,1-¼��
+            public byte bySignalStatic;//���ӵ��ź�״̬,0-����,1-�źŶ�ʧ
+            public byte byHardwareStatic;//ͨ��Ӳ��״̬,0-����,1-�쳣,����DSP����
+            public byte byRes1;//����
+            public uint dwBitRate;//ʵ������
+            public uint dwLinkNum;//�ͻ������ӵĸ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_LINK, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_IPADDR[] struClientIP;//�ͻ��˵�IP��ַ
+            public uint dwIPLinkNum;//�����ͨ��ΪIP���룬��ô��ʾIP���뵱ǰ��������
+            public byte byExceedMaxLink;		// �Ƿ񳬳��˵�·6·������ 0 - δ����, 1-����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 7, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public uint dwChannelNo;    //��ǰ��ͨ���ţ�0xffffffff��ʾ��Ч
+
+            public void Init()
+            {
+                struClientIP = new NET_DVR_IPADDR[MAX_LINK];
+
+                for (int i = 0; i < MAX_LINK; i++)
+                {
+                    struClientIP[i].Init();
+                }
+                byRes = new byte[12];
+            }
+        }
+
+        //ͨ��״̬
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CHANNELSTATE
+        {
+            public byte byRecordStatic;//ͨ���Ƿ���¼��,0-��¼��,1-¼��
+            public byte bySignalStatic;//���ӵ��ź�״̬,0-����,1-�źŶ�ʧ
+            public byte byHardwareStatic;//ͨ��Ӳ��״̬,0-����,1-�쳣,����DSP����
+            public byte reservedData;//����
+            public uint dwBitRate;//ʵ������
+            public uint dwLinkNum;//�ͻ������ӵĸ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_LINK, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwClientIP;//�ͻ��˵�IP��ַ
+        }
+
+        //Ӳ��״̬
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DISKSTATE
+        {
+            public uint dwVolume;//Ӳ�̵�����
+            public uint dwFreeSpace;//Ӳ�̵�ʣ��ռ�
+            public uint dwHardDiskStatic;//Ӳ�̵�״̬,0-�,1-����,2-������
+        }
+
+        //�豸����״̬��չ�ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_WORKSTATE_V40
+        { 
+            public uint dwSize ;            //�ṹ���С
+            public uint dwDeviceStatic; 	 //�豸��״̬,0-����,1-CPUռ����̫��,����85%,2-Ӳ������,���紮������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DISKNUM_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_DISKSTATE[]  struHardDiskStatic;   //Ӳ��״̬,һ�����ֻ�ܻ�ȡ33��Ӳ����Ϣ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_CHANNELSTATE_V30[] struChanStatic;//ͨ����״̬����ǰ����˳������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ALARMIN_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwHasAlarmInStatic; //�б����ı�������ڣ���ֵ��ʾ�����±�ֵ˳�����У�ֵΪ0xffffffffʱ��ǰ������ֵ��Ч
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ALARMOUT_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwHasAlarmOutStatic; //�б�������ı�������ڣ���ֵ��ʾ�����±�ֵ˳�����У�ֵΪ0xffffffffʱ��ǰ������ֵ��Ч
+            public uint dwLocalDisplay;			//������ʾ״̬,0-����,1-������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_AUDIO_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAudioInChanStatus;		//��λ��ʾ����ͨ����״̬ 0-δʹ�ã�1-ʹ���У���0λ��ʾ��1������ͨ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 126, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; 				//����
+        }
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_GETWORKSTATE_COND
+        {
+            public uint dwSize ;  //�ṹ�峤��
+            public byte byFindHardByCond; /*0-����ȫ������(��һ�����ֻ�ܲ���33��)����ʱdwFindHardStatusNum��Ч*/
+            public byte byFindChanByCond ;  /*0-����ȫ��ͨ������ʱdwFindChanNum��Ч*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;//����	
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DISKNUM_V30, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwFindHardStatus ; /*Ҫ���ҵ�Ӳ�̺ţ���ֵ��ʾ����ֵ����˳�����У� ����0xffffffff����Ϊ������Ч */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwFindChanNo; /*Ҫ���ҵ�ͨ���ţ���ֵ��ʾ����ֵ����˳�����У� ����0xffffffff����Ϊ������Ч */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; //����
+        }
+
+        //DVR����״̬(9000��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_WORKSTATE_V30
+        {
+            public uint dwDeviceStatic;//�豸��״̬,0-����,1-CPUռ����̫��,����85%,2-Ӳ������,���紮������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DISKNUM_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_DISKSTATE[] struHardDiskStatic;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_CHANNELSTATE_V30[] struChanStatic;//ͨ����״̬
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ALARMIN_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAlarmInStatic;//�����˿ڵ�״̬,0-û�б���,1-�б���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ALARMOUT_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAlarmOutStatic;//��������˿ڵ�״̬,0-û�����,1-�б������
+            public uint dwLocalDisplay;//������ʾ״̬,0-����,1-������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_AUDIO_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAudioChanStatus;//��ʾ����ͨ����״̬ 0-δʹ�ã�1-ʹ����, 0xff��Ч
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 10, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+
+            public void Init()
+            {
+                struHardDiskStatic = new NET_DVR_DISKSTATE[MAX_DISKNUM_V30];
+                struChanStatic = new NET_DVR_CHANNELSTATE_V30[MAX_CHANNUM_V30];
+                for (int i = 0; i < MAX_CHANNUM_V30; i++)
+                {
+                    struChanStatic[i].Init();
+                }
+                byAlarmInStatic = new byte[MAX_ALARMOUT_V30];
+                byAlarmOutStatic = new byte[MAX_ALARMOUT_V30];
+                byAudioChanStatus = new byte[MAX_AUDIO_V30];
+                byRes = new byte[10];
+            }
+        }
+
+        //DVR����״̬
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_WORKSTATE
+        {
+            public uint dwDeviceStatic;//�豸��״̬,0-����,1-CPUռ����̫��,����85%,2-Ӳ������,���紮������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DISKNUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_DISKSTATE[] struHardDiskStatic;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_CHANNELSTATE[] struChanStatic;//ͨ����״̬
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ALARMIN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAlarmInStatic;//�����˿ڵ�״̬,0-û�б���,1-�б���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ALARMOUT, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAlarmOutStatic;//��������˿ڵ�״̬,0-û�����,1-�б������
+            public uint dwLocalDisplay;//������ʾ״̬,0-����,1-������
+
+            public void Init()
+            {
+                struHardDiskStatic = new NET_DVR_DISKSTATE[MAX_DISKNUM];
+                struChanStatic = new NET_DVR_CHANNELSTATE[MAX_CHANNUM];
+                byAlarmInStatic = new byte[MAX_ALARMIN];
+                byAlarmOutStatic = new byte[MAX_ALARMOUT];
+            }
+        }        
+
+        //��־��Ϣ(9000��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_LOG_V30
+        {
+            public NET_DVR_TIME strLogTime;
+            public uint dwMajorType;//������ 1-����; 2-�쳣; 3-����; 0xff-ȫ��
+            public uint dwMinorType;//������ 0-ȫ��;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_NAMELEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPanelUser;//���������û���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_NAMELEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sNetUser;//����������û���
+            public NET_DVR_IPADDR struRemoteHostAddr;//Զ��������ַ
+            public uint dwParaType;//��������
+            public uint dwChannel;//ͨ����
+            public uint dwDiskNumber;//Ӳ�̺�
+            public uint dwAlarmInPort;//��������˿�
+            public uint dwAlarmOutPort;//��������˿�
+            public uint dwInfoLen;
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = LOG_INFO_LEN)]
+            public string sInfo;
+        }
+
+        //��־��Ϣ
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_LOG
+        {
+            public NET_DVR_TIME strLogTime;
+            public uint dwMajorType;//������ 1-����; 2-�쳣; 3-����; 0xff-ȫ��
+            public uint dwMinorType;//������ 0-ȫ��;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_NAMELEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPanelUser;//���������û���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_NAMELEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sNetUser;//����������û���
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sRemoteHostAddr;//Զ��������ַ
+            public uint dwParaType;//��������
+            public uint dwChannel;//ͨ����
+            public uint dwDiskNumber;//Ӳ�̺�
+            public uint dwAlarmInPort;//��������˿�
+            public uint dwAlarmOutPort;//��������˿�
+        }
+
+        /************************������������������־���� begin************************************************/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ALARMHOST_SEARCH_LOG_PARAM
+        {
+            public ushort wMajorType;		// ������
+            public ushort wMinorType;		// ������ 
+            public NET_DVR_TIME    struStartTime;	// ��ʼʱ�� 
+            public NET_DVR_TIME    struEndTime;	// ����ʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;		// �����ֽ�
+        }
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ALARMHOST_LOG_RET
+        {
+            public NET_DVR_TIME	struLogTime;                //  ��־ʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUserName;     // �����û�
+            public NET_DVR_IPADDR	struIPAddr;                 // ����IP��ַ
+            public ushort wMajorType;                 // ������ 
+            public ushort wMinorType;                 // ������
+            public ushort wParam;	                    // ��������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 10, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public uint dwInfoLen;	                // ������Ϣ����
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = LOG_INFO_LEN)]
+            public string sInfo;       // ������Ϣ
+        }
+        /*************************������������������־���� end***********************************************/
+
+        //�������״̬(9000��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ALARMOUTSTATUS_V30
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ALARMOUT_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] Output;
+
+            public void Init()
+            {
+                Output = new byte[MAX_ALARMOUT_V30];
+            }
+        }
+
+        //�������״̬
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ALARMOUTSTATUS
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] Output;
+        }        
+
+        //ATMר��
+        /****************************ATM(begin)***************************/
+        public const int NCR = 0;
+        public const int DIEBOLD = 1;
+        public const int WINCOR_NIXDORF = 2;
+        public const int SIEMENS = 3;
+        public const int OLIVETTI = 4;
+        public const int FUJITSU = 5;
+        public const int HITACHI = 6;
+        public const int SMI = 7;
+        public const int IBM = 8;
+        public const int BULL = 9;
+        public const int YiHua = 10;
+        public const int LiDe = 11;
+        public const int GDYT = 12;
+        public const int Mini_Banl = 13;
+        public const int GuangLi = 14;
+        public const int DongXin = 15;
+        public const int ChenTong = 16;
+        public const int NanTian = 17;
+        public const int XiaoXing = 18;
+        public const int GZYY = 19;
+        public const int QHTLT = 20;
+        public const int DRS918 = 21;
+        public const int KALATEL = 22;
+        public const int NCR_2 = 23;
+        public const int NXS = 24;
+
+        //������Ϣ
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_TRADEINFO
+        {
+            public ushort m_Year;
+            public ushort m_Month;
+            public ushort m_Day;
+            public ushort m_Hour;
+            public ushort m_Minute;
+            public ushort m_Second;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 24, ArraySubType = UnmanagedType.I1)]
+            public byte[] DeviceName;//�豸����
+            public uint dwChannelNumer;//ͨ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] CardNumber;//����
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 12)]
+            public string cTradeType;//��������
+            public uint dwCash;//���׽��
+        }
+
+        /*֡��ʽ*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FRAMETYPECODE
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 12, ArraySubType = UnmanagedType.I1)]
+            public byte[] code;/* ���� */
+        }
+        
+        //ATM����
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_FRAMEFORMAT
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sATMIP;/* ATM IP��ַ */
+            public uint dwATMType;/* ATM���� */
+            public uint dwInputMode;/* ���뷽ʽ	0-�������� 1-������� 2-����ֱ������ 3-����ATM��������*/
+            public uint dwFrameSignBeginPos;/* ���ı�־λ����ʼλ��*/
+            public uint dwFrameSignLength;/* ���ı�־λ�ij��� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 12, ArraySubType = UnmanagedType.I1)]
+            public byte[] byFrameSignContent;/* ���ı�־λ������ */
+            public uint dwCardLengthInfoBeginPos;/* ���ų�����Ϣ����ʼλ�� */
+            public uint dwCardLengthInfoLength;/* ���ų�����Ϣ�ij��� */
+            public uint dwCardNumberInfoBeginPos;/* ������Ϣ����ʼλ�� */
+            public uint dwCardNumberInfoLength;/* ������Ϣ�ij��� */
+            public uint dwBusinessTypeBeginPos;/* �������͵���ʼλ�� */
+            public uint dwBusinessTypeLength;/* �������͵ij��� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 10, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_FRAMETYPECODE[] frameTypeCode;/* ���� */
+        }
+
+        //SDK_V31 ATM
+        /*��������*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FILTER
+        {
+            public byte byEnable;/*0,������;1,����*/
+            public byte byMode;/*0,ASCII;1,HEX*/
+            public byte byFrameBeginPos;// ���ı�־λ����ʼλ��     
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 1, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byFilterText;/*�����ַ���*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 12, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        /*��ʼ��ʶ����*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IDENTIFICAT
+        {
+            public byte byStartMode;/*0,ASCII;1,HEX*/
+            public byte byEndMode;/*0,ASCII;1,HEX*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public NET_DVR_FRAMETYPECODE struStartCode;/*��ʼ�ַ�*/
+            public NET_DVR_FRAMETYPECODE struEndCode;/*�����ַ�*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 12, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+        }
+
+        /*������Ϣλ��*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PACKAGE_LOCATION
+        {
+            public byte byOffsetMode;/*0,token;1,fix*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public uint dwOffsetPos;/*modeΪ1��ʱ��ʹ��*/
+            public NET_DVR_FRAMETYPECODE struTokenCode;/*��־λ*/
+            public byte byMultiplierValue;/*��־λ���ٴγ���*/
+            public byte byEternOffset;/*���ӵ�ƫ����*/
+            public byte byCodeMode;/*0,ASCII;1,HEX*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 9, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        /*������Ϣ����*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PACKAGE_LENGTH
+        {
+            public byte byLengthMode;/*�������ͣ�0,variable;1,fix;2,get from package(���ÿ��ų���ʹ��)*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public uint dwFixLength;/*modeΪ1��ʱ��ʹ��*/
+            public uint dwMaxLength;
+            public uint dwMinLength;
+            public byte byEndMode;/*�ս��0,ASCII;1,HEX*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+            public NET_DVR_FRAMETYPECODE struEndCode;/*�ս��*/
+            public uint dwLengthPos;/*lengthModeΪ2��ʱ��ʹ�ã����ų����ڱ����е�λ��*/
+            public uint dwLengthLen;/*lengthModeΪ2��ʱ��ʹ�ã����ų��ȵij���*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes3;
+        }
+
+        /*OSD ���ӵ�λ��*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_OSD_POSITION
+        {
+            public byte byPositionMode;/*���ӷ�񣬹�2�֣�0������ʾ��1��Custom*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public uint dwPos_x;/*x���꣬positionmodeΪCustomʱʹ��*/
+            public uint dwPos_y;/*y���꣬positionmodeΪCustomʱʹ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        /*������ʾ��ʽ*/
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_DATE_FORMAT
+        {
+            public byte byItem1;/*Month,0.mm;1.mmm;2.mmmm*/
+            public byte byItem2;/*Day,0.dd;*/
+            public byte byItem3;/*Year,0.yy;1.yyyy*/
+            public byte byDateForm;/*0~5��3��item���������*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 4)]
+            public string chSeprator;/*�ָ���*/
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 4)]
+            public string chDisplaySeprator;/*��ʾ�ָ���*/
+            public byte byDisplayForm;/*0~5��3��item���������*///lili mode by lili
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 27, ArraySubType = UnmanagedType.I1)]
+            public byte[] res;
+        }
+
+        /*ʱ����ʾ��ʽ*/
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVRT_TIME_FORMAT
+        {
+            public byte byTimeForm;/*1. HH MM SS;0. HH MM*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 23, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public byte byHourMode;/*0,12;1,24*/ //lili mode
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 4)]
+            public string chSeprator;/*���ķָ�������ʱû��*/
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 4)]
+            public string chDisplaySeprator;/*��ʾ�ָ���*/
+            public byte byDisplayForm;/*0~5��3��item���������*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes3;
+            public byte byDisplayHourMode;/*0,12;1,24*/ //lili mode
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 19, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes4;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_OVERLAY_CHANNEL
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byChannel;/*���ӵ�ͨ��*/
+            public uint dwDelayTime;/*������ʱʱ��*/
+            public byte byEnableDelayTime;/*�Ƿ����õ�����ʱ�������˿�����ʱ����*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 11, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ATM_PACKAGE_ACTION
+        {
+            public NET_DVR_PACKAGE_LOCATION struPackageLocation;
+            public NET_DVR_OSD_POSITION struOsdPosition;
+            public NET_DVR_FRAMETYPECODE struActionCode;/*�������͵ȶ�Ӧ����*/
+            public NET_DVR_FRAMETYPECODE struPreCode;/*�����ַ�ǰ���ַ�*/
+            public byte byActionCodeMode;/*�������͵ȶ�Ӧ����0,ASCII;1,HEX*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 7, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ATM_PACKAGE_DATE
+        {
+            public NET_DVR_PACKAGE_LOCATION struPackageLocation;
+            public NET_DVR_DATE_FORMAT struDateForm;
+            public NET_DVR_OSD_POSITION struOsdPosition;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] res;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ATM_PACKAGE_TIME
+        {
+            public NET_DVR_PACKAGE_LOCATION location;
+            public NET_DVRT_TIME_FORMAT struTimeForm;
+            public NET_DVR_OSD_POSITION struOsdPosition;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ATM_PACKAGE_OTHERS
+        {
+            public NET_DVR_PACKAGE_LOCATION struPackageLocation;
+            public NET_DVR_PACKAGE_LENGTH struPackageLength;
+            public NET_DVR_OSD_POSITION struOsdPosition;
+            public NET_DVR_FRAMETYPECODE struPreCode;/*�����ַ�ǰ���ַ�*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] res;
+        }
+
+        //�û��Զ���Э��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ATM_USER_DEFINE_PROTOCOL
+        {
+            public NET_DVR_IDENTIFICAT        struIdentification;  //���ı�־
+            public NET_DVR_FILTER             struFilter; //���ݰ���������
+            public NET_DVR_ATM_PACKAGE_OTHERS struCardNoPara; //���ӿ�������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ACTION_TYPE, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_ATM_PACKAGE_ACTION[] struTradeActionPara; //���ӽ�����Ϊ���� 0-9 ���ζ�ӦInCard OutCard OverLay SetTime GetStatus Query WithDraw Deposit ChanPass Transfer
+            public NET_DVR_ATM_PACKAGE_OTHERS struAmountPara; //���ӽ��׽������
+            public NET_DVR_ATM_PACKAGE_OTHERS struSerialNoPara; //���ӽ����������
+            public NET_DVR_OVERLAY_CHANNEL    struOverlayChan; //����ͨ������
+            public NET_DVR_ATM_PACKAGE_DATE   struRes1; //�������ڣ�����
+            public NET_DVR_ATM_PACKAGE_TIME   struRes2; //����ʱ�䣬����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 124, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes3;        //����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ATM_FRAMEFORMAT_V30
+        {		
+            public uint dwSize;                 //�ṹ��С
+            public byte byEnable;				/*�Ƿ�����0,������;1,����*/
+            public byte byInputMode;			/**���뷽ʽ:0-���������1����Э�顢2-���ڼ�����3-����Э��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 34, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;              //�����ֽ� 
+            public NET_DVR_IPADDR struAtmIp;				/*ATM ��IP �������ʱʹ�� */
+            public ushort wAtmPort;				/* ����Э�鷽ʽʱ��ʹ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;              // �����ֽ�
+            public uint dwAtmType;				/*ATMЭ�����ͣ���NET_DVR_ATM_PROTOCOL�ṹ�л�ȡ���������Ϊ�Զ���ʱʹ���û��Զ���Э��*/
+            public NET_DVR_ATM_USER_DEFINE_PROTOCOL  struAtmUserDefineProtocol; //�û��Զ���Э�飬��ATM����Ϊ�Զ�ʱ��Ҫʹ�øö���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes3;
+        }
+
+        //Э����Ϣ���ݽṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ATM_PROTO_TYPE
+        {
+            public uint dwAtmType; //ATMЭ�����ͣ�ͬʱ��Ϊ������� ATM �����е�dwAtmType �Զ���ʱΪ1025
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = ATM_DESC_LEN)]
+            public string chDesc; //ATM�������
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_ATM_PROTO_LIST
+        {
+            public uint dwAtmProtoNum;/*Э���б��ĸ���*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ATM_PROTOCOL_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_ATM_PROTO_TYPE[] struAtmProtoType;/*Э���б���Ϣ*/
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ATM_PROTOCOL
+        {
+            public uint dwSize;
+            public NET_DVR_ATM_PROTO_LIST struNetListenList;     // �������������
+            public NET_DVR_ATM_PROTO_LIST struSerialListenList; //���ڼ���Э������
+            public NET_DVR_ATM_PROTO_LIST struNetProtoList;     //����������
+            public NET_DVR_ATM_PROTO_LIST struSerialProtoList;   //����������
+            public NET_DVR_ATM_PROTO_TYPE struCustomProto;      //�Զ���Э��            
+        }
+
+        /*****************************DS-6001D/F(begin)***************************/
+        //DS-6001D Decoder
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DECODERINFO
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byEncoderIP;//�����豸���ӵķ�����IP
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byEncoderUser;//�����豸���ӵķ��������û���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byEncoderPasswd;//�����豸���ӵķ�����������
+            public byte bySendMode;//�����豸���ӷ�����������ģʽ
+            public byte byEncoderChannel;//�����豸���ӵķ�������ͨ����
+            public ushort wEncoderPort;//�����豸���ӵķ������Ķ˿ں�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] reservedData;//����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DECODERSTATE
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byEncoderIP;//�����豸���ӵķ�����IP
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byEncoderUser;//�����豸���ӵķ��������û���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byEncoderPasswd;//�����豸���ӵķ�����������
+            public byte byEncoderChannel;//�����豸���ӵķ�������ͨ����
+            public byte bySendMode;//�����豸���ӵķ�����������ģʽ
+            public ushort wEncoderPort;//�����豸���ӵķ������Ķ˿ں�
+            public uint dwConnectState;//�����豸���ӷ�������״̬
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] reservedData;//����
+        }
+
+        /*�����豸�����붨��*/
+        public const int NET_DEC_STARTDEC = 1;
+        public const int NET_DEC_STOPDEC = 2;
+        public const int NET_DEC_STOPCYCLE = 3;
+        public const int NET_DEC_CONTINUECYCLE = 4;
+
+        /*���ӵ�ͨ������*/
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_DECCHANINFO
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sDVRIP;/* DVR IP��ַ */
+            public ushort wDVRPort;/* �˿ں� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUserName;/* �û��� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassword;/* ���� */
+            public byte byChannel;/* ͨ���� */
+            public byte byLinkMode;/* ����ģʽ */
+            public byte byLinkType;/* �������� 0�������� 1�������� */
+        }
+
+        /*ÿ������ͨ��������*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DECINFO
+        {
+            public byte byPoolChans;/*ÿ·����ͨ���ϵ�ѭ��ͨ������, ���4ͨ�� 0��ʾû�н���*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DECPOOLNUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_DECCHANINFO[] struchanConInfo;
+            public byte byEnablePoll;/*�Ƿ���Ѳ 0-�� 1-��*/
+            public byte byPoolTime;/*��Ѳʱ�� 0-���� 1-10�� 2-15�� 3-20�� 4-30�� 5-45�� 6-1���� 7-2���� 8-5���� */
+        }
+
+        /*�����豸��������*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DECCFG
+        {
+            public uint dwSize;
+            public uint dwDecChanNum;/*����ͨ��������*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DECNUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_DECINFO[] struDecInfo;
+        }
+
+        //2005-08-01
+        /* �����豸͸��ͨ������ */
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_PORTINFO
+        {
+            public uint dwEnableTransPort;/* �Ƿ�����͸��ͨ�� 0�������� 1������*/
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sDecoderIP;/* DVR IP��ַ */
+            public ushort wDecoderPort;/* �˿ں� */
+            public ushort wDVRTransPort;/* ����ǰ��DVR�Ǵ�485/232�����1��ʾ232����,2��ʾ485���� */
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 4)]
+            public string cReserve;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PORTCFG
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_TRANSPARENTNUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_PORTINFO[] struTransPortInfo;/* ����0��ʾ232 ����1��ʾ485 */
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]               
+        public struct bytime
+        {
+            public uint dwChannel;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUserName;/*������Ƶ�û���*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassword;/* ���� */
+            public NET_DVR_TIME struStartTime;/* ��ʱ��طŵĿ�ʼʱ�� */
+            public NET_DVR_TIME struStopTime;/* ��ʱ��طŵĽ���ʱ�� */
+        }
+
+        /* ���������ļ��ط� */
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_PLAYREMOTEFILE
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sDecoderIP;/* DVR IP��ַ */
+            public ushort wDecoderPort;/* �˿ں� */
+            public ushort wLoadMode;/* �ط�����ģʽ 1�������� 2����ʱ�� */
+
+            [StructLayoutAttribute(LayoutKind.Explicit)]
+            public struct mode_size
+            {
+                [FieldOffsetAttribute(0)]
+                [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 100, ArraySubType = UnmanagedType.I1)]
+                public byte[] byRes;
+
+                /*[FieldOffsetAttribute(0)]
+                [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 100, ArraySubType = UnmanagedType.I1)]             
+                public byte[] byFile;/* �طŵ��ļ��� */
+                /*[FieldOffsetAttribute(0)]
+                public bytime bytime;
+                * */
+            }
+        }
+
+
+
+        /*��ǰ�豸��������״̬*/
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_DECCHANSTATUS
+        {
+            public uint dwWorkType;/*������ʽ��1����Ѳ��2����̬���ӽ��롢3���ļ��ط����� 4����ʱ��ط�����*/
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sDVRIP;/*���ӵ��豸ip*/
+            public ushort wDVRPort;/*���Ӷ˿ں�*/
+            public byte byChannel;/* ͨ���� */
+            public byte byLinkMode;/* ����ģʽ */
+            public uint dwLinkType;/*�������� 0�������� 1��������*/
+
+            [StructLayoutAttribute(LayoutKind.Explicit)]
+            public struct objectInfo
+            {
+                [StructLayoutAttribute(LayoutKind.Sequential)]
+                public struct userInfo
+                {
+                    [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+                    public byte[] sUserName;/*������Ƶ�û���*/
+                    [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+                    public byte[] sPassword;/* ���� */
+                    [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 52)]
+                    public string cReserve;
+                }
+
+                [StructLayoutAttribute(LayoutKind.Sequential)]
+                public struct fileInfo
+                {
+                    [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 100, ArraySubType = UnmanagedType.I1)]
+                    public byte[] fileName;
+                }
+                [StructLayoutAttribute(LayoutKind.Sequential)]
+                public struct timeInfo
+                {
+                    public uint dwChannel;
+                    [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+                    public byte[] sUserName;/*������Ƶ�û���*/
+                    [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+                    public byte[] sPassword;/* ���� */
+                    public NET_DVR_TIME struStartTime;/* ��ʱ��طŵĿ�ʼʱ�� */
+                    public NET_DVR_TIME struStopTime;/* ��ʱ��طŵĽ���ʱ�� */
+                }
+            }
+        }
+
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DECSTATUS
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DECNUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_DECCHANSTATUS[] struTransPortInfo;
+        }
+        /*****************************DS-6001D/F(end)***************************/
+
+        //���ַ�����(�ӽṹ)
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_SHOWSTRINGINFO
+        {
+            public ushort wShowString;// Ԥ����ͼ�����Ƿ���ʾ�ַ�,0-����ʾ,1-��ʾ �����С704*576,�����ַ��Ĵ�СΪ32*32
+            public ushort wStringSize;/* �����ַ��ij��ȣ����ܴ���44���ַ� */
+            public ushort wShowStringTopLeftX;/* �ַ���ʾλ�õ�x���� */
+            public ushort wShowStringTopLeftY;/* �ַ�������ʾλ�õ�y���� */
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 44)]
+            public string sString;/* Ҫ��ʾ���ַ����� */
+        }
+
+        //�����ַ�(9000��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SHOWSTRING_V30
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_STRINGNUM_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SHOWSTRINGINFO[] struStringInfo;/* Ҫ��ʾ���ַ����� */
+        }
+
+        //�����ַ���չ(8���ַ�)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SHOWSTRING_EX
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_STRINGNUM_EX, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SHOWSTRINGINFO[] struStringInfo;/* Ҫ��ʾ���ַ����� */
+        }
+
+        //�����ַ�
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SHOWSTRING
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_STRINGNUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SHOWSTRINGINFO[] struStringInfo;/* Ҫ��ʾ���ַ����� */
+        }
+
+        /****************************DS9000�����ṹ(begin)******************************/
+        /*EMAIL�����ṹ*/
+        //��ԭ�ṹ���в���
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct struReceiver
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sName;/* �ռ������� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_EMAIL_ADDR_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sAddress;/* �ռ��˵�ַ */
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_EMAILCFG_V30
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sAccount;/* �˺�*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_EMAIL_PWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassword;/*���� */
+
+            [StructLayoutAttribute(LayoutKind.Sequential)]
+            public struct struSender
+            {
+                [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+                public byte[] sName;/* ���������� */
+                [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_EMAIL_ADDR_LEN, ArraySubType = UnmanagedType.I1)]
+                public byte[] sAddress;/* �����˵�ַ */
+            }
+
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_EMAIL_ADDR_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sSmtpServer;/* smtp������ */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_EMAIL_ADDR_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPop3Server;/* pop3������ */
+
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.Struct)]
+            public struReceiver[] struStringInfo;/* ����������3���ռ��� */
+
+            public byte byAttachment;/* �Ƿ������ */
+            public byte bySmtpServerVerify;/* ���ͷ�����Ҫ��������֤ */
+            public byte byMailInterval;/* mail interval */
+            public byte byEnableSSL;//ssl�Ƿ�����9000_1.1
+            public ushort wSmtpPort;//gmail��465����ͨ��Ϊ25  
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 74, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;//����
+        }
+
+        /*DVRʵ��Ѳ�����ݽṹ*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CRUISE_PARA
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = CRUISE_MAX_PRESET_NUMS, ArraySubType = UnmanagedType.I1)]
+            public byte[] byPresetNo;/* Ԥ�õ�� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = CRUISE_MAX_PRESET_NUMS, ArraySubType = UnmanagedType.I1)]
+            public byte[] byCruiseSpeed;/* Ѳ���ٶ� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = CRUISE_MAX_PRESET_NUMS, ArraySubType = UnmanagedType.U2)]
+            public ushort[] wDwellTime;/* ͣ��ʱ�� */
+            public byte byEnableThisCruise;/* �Ƿ����� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 15, ArraySubType = UnmanagedType.I1)]
+            public byte[] res;
+        }
+        /****************************DS9000�����ṹ(end)******************************/     
+        //ʱ���
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_TIMEPOINT
+        {
+            public uint dwMonth;//�� 0-11��ʾ1-12����
+            public uint dwWeekNo;//�ڼ��� 0����1�� 1����2�� 2����3�� 3����4�� 4�����һ��
+            public uint dwWeekDate;//���ڼ� 0�������� 1������һ 2�����ڶ� 3�������� 4�������� 5�������� 6��������
+            public uint dwHour;//Сʱ	��ʼʱ��0��23 ����ʱ��1��23
+            public uint dwMin;//��	0��59
+        }
+
+        //����ʱ����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ZONEANDDST
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;//����
+            public uint dwEnableDST;//�Ƿ�������ʱ�� 0�������� 1������
+            public byte byDSTBias;//����ʱƫ��ֵ��30min, 60min, 90min, 120min, �Է��Ӽƣ�����ԭʼ��ֵ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+            public NET_DVR_TIMEPOINT struBeginPoint;//��ʱ�ƿ�ʼʱ��
+            public NET_DVR_TIMEPOINT struEndPoint;//��ʱ��ֹͣʱ��
+        }
+
+        //ͼƬ����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_JPEGPARA
+        {
+            /*ע�⣺��ͼ��ѹ���ֱ���ΪVGAʱ��֧��0=CIF, 1=QCIF, 2=D1ץͼ��
+	        ���ֱ���Ϊ3=UXGA(1600x1200), 4=SVGA(800x600), 5=HD720p(1280x720),6=VGA,7=XVGA, 8=HD900p
+	        ��֧�ֵ�ǰ�ֱ��ʵ�ץͼ*/
+            public ushort wPicSize;/* 0=CIF, 1=QCIF, 2=D1 3=UXGA(1600x1200), 4=SVGA(800x600), 5=HD720p(1280x720),6=VGA*/
+            public ushort wPicQuality;/* ͼƬ����ϵ�� 0-��� 1-�Ϻ� 2-һ�� */
+        }
+
+        /* aux video out parameter */
+        //���������������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_AUXOUTCFG
+        {
+            public uint dwSize;
+            public uint dwAlarmOutChan;/* ѡ�񱨾������󱨾�ͨ���л�ʱ�䣺1��������ͨ��: 0:�����/1:��1/2:��2/3:��3/4:��4 */
+            public uint dwAlarmChanSwitchTime;/* :1�� - 10:10�� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_AUXOUT, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwAuxSwitchTime;/* ��������л�ʱ��: 0-���л�,1-5s,2-10s,3-20s,4-30s,5-60s,6-120s,7-300s */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_AUXOUT * MAX_WINDOW, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAuxOrder;/* �������Ԥ��˳��, 0xff��ʾ��Ӧ�Ĵ��ڲ�Ԥ�� */
+        }
+
+        //ntp
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_NTPPARA
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] sNTPServer;/* Domain Name or IP addr of NTP server */
+            public ushort wInterval;/* adjust time interval(hours) */
+            public byte byEnableNTP;/* enable NPT client 0-no��1-yes*/
+            public byte cTimeDifferenceH;/* ����ʱ�׼ʱ��� Сʱƫ��-12 ... +13 */
+            public byte cTimeDifferenceM;/* ����ʱ�׼ʱ��� ����ƫ��0, 30, 45*/
+            public byte res1;
+            public ushort wNtpPort; /* ntp server port 9000���� �豸Ĭ��Ϊ123*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] res2;
+        }
+
+        //ddns
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DDNSPARA
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUsername;/* DDNS�˺��û���/���� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassword;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] sDomainName; /* ���� */
+            public byte byEnableDDNS;/*�Ƿ�Ӧ�� 0-��1-��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 15, ArraySubType = UnmanagedType.I1)]
+            public byte[] res;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DDNSPARA_EX
+        {
+            public byte byHostIndex;/* 0-Hikvision DNS 1��Dyndns 2��PeanutHull(������)*/
+            public byte byEnableDDNS;/*�Ƿ�Ӧ��DDNS 0-��1-��*/
+            public ushort wDDNSPort;/* DDNS�˿ں� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUsername;/* DDNS�û���*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassword;/* DDNS���� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DOMAIN_NAME, ArraySubType = UnmanagedType.I1)]
+            public byte[] sDomainName;/* �豸�䱸��������ַ */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DOMAIN_NAME, ArraySubType = UnmanagedType.I1)]
+            public byte[] sServerName;/* DDNS ��Ӧ�ķ�������ַ��������IP��ַ������ */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //9000��չ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct struDDNS
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUsername;/* DDNS�˺��û���*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassword;/* ���� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DOMAIN_NAME, ArraySubType = UnmanagedType.I1)]
+            public byte[] sDomainName;/* �豸�䱸��������ַ */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DOMAIN_NAME, ArraySubType = UnmanagedType.I1)]
+            public byte[] sServerName;/* DDNSЭ���Ӧ�ķ�������ַ��������IP��ַ������ */
+            public ushort wDDNSPort;/* �˿ں� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 10, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DDNSPARA_V30
+        {
+            public byte byEnableDDNS;
+            public byte byHostIndex;/* 0-Hikvision DNS(����) 1��Dyndns 2��PeanutHull(������)*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DDNS_NUMS, ArraySubType = UnmanagedType.Struct)]
+            public struDDNS[] struDDNS;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        //email
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_EMAILPARA
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUsername;/* �ʼ��˺�/���� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassword;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] sSmtpServer;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPop3Server;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] sMailAddr;/* email */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] sEventMailAddr1;/* �ϴ�����/�쳣�ȵ�email */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] sEventMailAddr2;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] res;
+        }
+
+        //�����������
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_NETAPPCFG
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sDNSIp; /* DNS��������ַ */
+            public NET_DVR_NTPPARA struNtpClientParam;/* NTP���� */
+            public NET_DVR_DDNSPARA struDDNSClientParam;/* DDNS���� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 464, ArraySubType = UnmanagedType.I1)]
+            public byte[] res;/* ���� */
+        }
+
+        //nfs�ṹ����
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_SINGLE_NFS
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sNfsHostIPAddr;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PATHNAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sNfsDirectory;
+
+            public void Init()
+            {
+                this.sNfsDirectory = new byte[PATHNAME_LEN];
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_NFSCFG
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_NFS_DISK, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SINGLE_NFS[] struNfsDiskParam;
+
+            public void Init()
+            {
+                this.struNfsDiskParam = new NET_DVR_SINGLE_NFS[MAX_NFS_DISK];
+
+                for (int i = 0; i < MAX_NFS_DISK; i++)
+                {
+                    struNfsDiskParam[i].Init();
+                }
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ISCSI_CFG
+        {   
+            public uint dwSize;                   // �ṹ��С
+            public ushort wVrmPort;                  // VRM �����˿�
+            public byte byEnable;                  // �Ƿ����� ISCSI�洢
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 69, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;                 // �����ֽ�
+            public NET_DVR_IPADDR struVrmAddr;          // VRM ip��ַ 16λ
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 64)]
+            public string chNvtIndexCode;        //nvt index Code 
+        }
+
+        //Ѳ��������(HIK IP����ר��)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CRUISE_POINT
+        {
+            public byte PresetNum;//Ԥ�õ�
+            public byte Dwell;//ͣ��ʱ��
+            public byte Speed;//�ٶ�
+            public byte Reserve;//����
+
+            public void Init()
+            {
+                PresetNum = 0;
+                Dwell = 0;
+                Speed = 0;
+                Reserve = 0;
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CRUISE_RET
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_CRUISE_POINT[] struCruisePoint;//���֧��32��Ѳ����
+
+            public void Init()
+            {
+                struCruisePoint = new NET_DVR_CRUISE_POINT[32];
+                for (int i = 0; i < 32; i++)
+                {
+                    struCruisePoint[i].Init();
+                }
+            }
+        }
+
+        /************************************��·������(begin)***************************************/
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_NETCFG_OTHER
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sFirstDNSIP;
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sSecondDNSIP;
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 32)]
+            public string sRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_MATRIX_DECINFO
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sDVRIP;/* DVR IP��ַ */
+            public ushort wDVRPort;/* �˿ں� */
+            public byte byChannel;/* ͨ���� */
+            public byte byTransProtocol;/* ���������� 0-TCP, 1-UDP */
+            public byte byTransMode;/* ��������ģʽ 0�������� 1��������*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUserName;/* ����������½�ʺ� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassword;/* ������������ */
+        }
+
+        //����/ֹͣ��̬����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MATRIX_DYNAMIC_DEC
+        {
+            public uint dwSize;
+            public NET_DVR_MATRIX_DECINFO struDecChanInfo;/* ��̬����ͨ����Ϣ */
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_MATRIX_DEC_CHAN_STATUS
+        {
+            public uint dwSize;
+            public uint dwIsLinked;/* ����ͨ��״̬ 0������ 1���������� 2�������� 3-���ڽ��� */
+            public uint dwStreamCpRate;/* Stream copy rate, X kbits/second */
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 64)]
+            public string cRes;/* ���� */
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_MATRIX_DEC_CHAN_INFO
+        {
+            public uint dwSize;
+            public NET_DVR_MATRIX_DECINFO struDecChanInfo;/* ����ͨ����Ϣ */
+            public uint dwDecState;/* 0-��̬���� 1��ѭ������ 2����ʱ��ط� 3�����ļ��ط� */
+            public NET_DVR_TIME StartTime;/* ��ʱ��طſ�ʼʱ�� */
+            public NET_DVR_TIME StopTime;/* ��ʱ��ط�ֹͣʱ�� */
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 128)]
+            public string sFileName;/* ���ļ��ط��ļ��� */
+        }
+
+        //���ӵ�ͨ������ 2007-11-05
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MATRIX_DECCHANINFO
+        {
+            public uint dwEnable;/* �Ƿ����� 0���� 1������*/
+            public NET_DVR_MATRIX_DECINFO struDecChanInfo;/* ��ѭ����ͨ����Ϣ */
+        }
+
+        //2007-11-05 ����ÿ������ͨ��������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MATRIX_LOOP_DECINFO
+        {
+            public uint dwSize;
+            public uint dwPoolTime;/*��Ѳʱ�� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CYCLE_CHAN, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_MATRIX_DECCHANINFO[] struchanConInfo;
+        }
+
+        //2007-12-22
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct TTY_CONFIG
+        {
+            public byte baudrate;/* ������ */
+            public byte databits;/* ����λ */
+            public byte stopbits;/* ֹͣλ */
+            public byte parity;/* ��żУ��λ */
+            public byte flowcontrol;/* ���� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] res;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_MATRIX_TRAN_CHAN_INFO
+        {
+            public byte byTranChanEnable;/* ��ǰ͸��ͨ���Ƿ�� 0���ر� 1���� */
+            /*
+             *	��·������������1��485���ڣ�1��232���ڶ�������Ϊ͸��ͨ��,�豸�ŷ������£�
+             *	0 RS485
+             *	1 RS232 Console
+             */
+            public byte byLocalSerialDevice;/* Local serial device */
+            /*
+	         *	Զ�̴��������������,һ��RS232��һ��RS485
+	         *	1��ʾ232����
+	         *	2��ʾ485����
+	         */
+            public byte byRemoteSerialDevice;/* Remote output serial device */
+            public byte res1;/* ���� */
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sRemoteDevIP;/* Remote Device IP */
+            public ushort wRemoteDevPort;/* Remote Net Communication Port */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] res2;/* ���� */
+            public TTY_CONFIG RemoteSerialDevCfg;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MATRIX_TRAN_CHAN_CONFIG
+        {
+            public uint dwSize;
+            public byte by232IsDualChan;/* ������·232͸��ͨ����ȫ˫���� ȡֵ1��MAX_SERIAL_NUM */
+            public byte by485IsDualChan;/* ������·485͸��ͨ����ȫ˫���� ȡֵ1��MAX_SERIAL_NUM */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] res;/* ���� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_SERIAL_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_MATRIX_TRAN_CHAN_INFO[] struTranInfo;/*ͬʱ֧�ֽ���MAX_SERIAL_NUM��͸��ͨ��*/
+        }
+
+        //2007-12-24 Merry Christmas Eve...
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_MATRIX_DEC_REMOTE_PLAY
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sDVRIP;/* DVR IP��ַ */
+            public ushort wDVRPort;/* �˿ں� */
+            public byte byChannel;/* ͨ���� */
+            public byte byReserve;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUserName;/* �û��� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassword;/* ���� */
+            public uint dwPlayMode;/* 0�����ļ� 1����ʱ��*/
+            public NET_DVR_TIME StartTime;
+            public NET_DVR_TIME StopTime;
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 128)]
+            public string sFileName;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MATRIX_DEC_REMOTE_PLAY_CONTROL
+        {
+            public uint dwSize;
+            public uint dwPlayCmd;/* �������� ���ļ���������*/
+            public uint dwCmdParam;/* ����������� */
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MATRIX_DEC_REMOTE_PLAY_STATUS
+        {
+            public uint dwSize;
+            public uint dwCurMediaFileLen;/* ��ǰ���ŵ�ý���ļ����� */
+            public uint dwCurMediaFilePosition;/* ��ǰ�����ļ��IJ���λ�� */
+            public uint dwCurMediaFileDuration;/* ��ǰ�����ļ�����ʱ�� */
+            public uint dwCurPlayTime;/* ��ǰ�Ѿ����ŵ�ʱ�� */
+            public uint dwCurMediaFIleFrames;/* ��ǰ�����ļ�����֡�� */
+            public uint dwCurDataType;/* ��ǰ������������ͣ�19-�ļ�ͷ��20-�����ݣ� 21-���Ž�����־ */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 72, ArraySubType = UnmanagedType.I1)]
+            public byte[] res;
+        }
+
+        //2009-4-11 added by likui ��·������new
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MATRIX_PASSIVEMODE
+        {
+            public ushort wTransProtol;//����Э�飬0-TCP, 1-UDP, 2-MCAST
+            public ushort wPassivePort;//UDP�˿�, TCPʱĬ��
+            public NET_DVR_IPADDR struMcastIP;
+              public byte byStreamType;/* ���ݲ���ģʽ:REAL_TIME_STREAM(1)ʵʱ��,RECORD_STREAM(2)�ļ��� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 7, ArraySubType = UnmanagedType.I1)]
+            public byte[] res;
+        }       
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MATRIX_TRAN_CHAN_INFO_V30
+        {
+            public byte byTranChanEnable;/* ��ǰ͸��ͨ���Ƿ�� 0���ر� 1���� */
+            /*
+	         *	��·������������1��485���ڣ�1��232���ڶ�������Ϊ͸��ͨ��,�豸�ŷ������£�
+	         *	0 RS485
+	         *	1 RS232 Console
+	         */
+            public byte byLocalSerialDevice;/* Local serial device */
+            /*
+	         *	Զ�̴��������������,һ��RS232��һ��RS485
+	         *	1��ʾ232����
+	         *	2��ʾ485����
+	         */
+            public byte byRemoteSerialDevice;/* Remote output serial device */
+            public byte byRes1;/* ���� */
+            public NET_DVR_IPADDR struRemoteDevIP;/* Remote Device IP */
+            public ushort wRemoteDevPort;/* Remote Net Communication Port */
+            public byte byIsEstablished;/* ͸��ͨ�������ɹ���־��0-û�гɹ���1-�����ɹ� */
+            public byte byRes2;/* ���� */
+            public TTY_CONFIG RemoteSerialDevCfg;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byUsername;/* 32BYTES */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byPassword;/* 16BYTES */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes3;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MATRIX_TRAN_CHAN_CONFIG_V30
+        {
+            public uint dwSize;
+            public byte by232IsDualChan;/* ������·232͸��ͨ����ȫ˫���� ȡֵ1��MAX_SERIAL_NUM */
+            public byte by485IsDualChan;/* ������·485͸��ͨ����ȫ˫���� ȡֵ1��MAX_SERIAL_NUM */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] vyRes;/* ���� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_SERIAL_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_MATRIX_TRAN_CHAN_INFO[] struTranInfo;/*ͬʱ֧�ֽ���MAX_SERIAL_NUM��͸��ͨ��*/
+        }        
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MATRIX_CHAN_INFO_V30
+        {
+            public uint dwEnable;/* �Ƿ����� 0���� 1������*/
+            public NET_DVR_STREAM_MEDIA_SERVER_CFG streamMediaServerCfg;
+            public NET_DVR_DEV_CHAN_INFO struDevChanInfo;/* ��ѭ����ͨ����Ϣ */
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MATRIX_LOOP_DECINFO_V30
+        {
+            public uint dwSize;
+            public uint dwPoolTime;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CYCLE_CHAN_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_MATRIX_CHAN_INFO_V30[] struchanConInfo;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_MATRIX_DEC_CHAN_INFO_V30
+        {
+            public uint dwSize;
+            public NET_DVR_STREAM_MEDIA_SERVER_CFG streamMediaServerCfg;/*��ý�����������*/
+            public NET_DVR_DEV_CHAN_INFO struDevChanInfo;/* ����ͨ����Ϣ */
+            public uint dwDecState;/* 0-��̬���� 1��ѭ������ 2����ʱ��ط� 3�����ļ��ط� */
+            public NET_DVR_TIME StartTime;/* ��ʱ��طſ�ʼʱ�� */
+            public NET_DVR_TIME StopTime;/* ��ʱ��ط�ֹͣʱ�� */
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 128)]
+            public string sFileName;/* ���ļ��ط��ļ��� */
+            public uint dwGetStreamMode;/*ȡ��ģʽ:1-������2-����*/
+            public NET_DVR_MATRIX_PASSIVEMODE struPassiveMode;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        /*��ý���������������*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_STREAM_MEDIA_SERVER
+        {
+            public byte byValid;/*�Ƿ�������ý�������ȡ��,0��ʾ��Ч����0��ʾ��Ч*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = MAX_DOMAIN_NAME)]
+            public string byAddress;/* �豸IP��ַ�������� */
+            public ushort wDevPort;/*��ý��������˿�*/
+            public byte byTransmitType;/*���������� 0-TCP��1-UDP*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 5, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        //�豸ͨ����Ϣ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DEV_CHAN_INFO_EX
+        {
+            public byte byChanType;		        //ͨ�����ͣ�0-��ͨͨ����1-��ͨ����2-��ID��3-��������Դ
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = STREAM_ID_LEN)]
+            public string byStreamId;/* ��ID��ͨ������ byChanType Ϊ 2 ʱ��Ч */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public uint dwChannel;//ͨ������ byChanTypeΪ 0��1��3 ʱ��Ч�����ͨ������Ϊ��������Դ���ò���ֵ��ʾ��������Դ������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 24, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = MAX_DOMAIN_NAME)]
+            public string byAddress;/* �豸IP��ַ�������� */
+            public ushort wDVRPort;			 	//�˿ں�
+            public byte byChannel;				//�ò�����Ч��ͨ���ż�dwChannel 
+            public byte byTransProtocol;		//����������0-TCP��1-UDP
+            public byte byTransMode;			//��������ģʽ 0�������� 1��������
+            public byte byFactoryType;			/*ǰ���豸��������,ͨ���ӿڻ�ȡ*/
+            public byte byDeviceType; //�豸����(��Ƶ�ۺ�ƽ̨���ܰ�ʹ��)��1-����������ʱ������Ƶ�ۺ�ƽ̨��������byVcaSupportChanMode�ֶ���������ʹ�ý���ͨ��������ʾͨ������2-������
+            public byte byDispChan;//��ʾͨ����,��������ʹ��
+            public byte bySubDispChan;//��ʾͨ����ͨ���ţ���������ʱʹ��
+            public byte byResolution;	//; 1-CIF 2-4CIF 3-720P 4-1080P 5-500w����������ʹ�ã���������������ݸò������������Դ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = NAME_LEN)]
+            public string sUserName;  	        //����������½�ʺ�
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = PASSWD_LEN)]
+            public string sPassword;  	        //������������
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_DEC_STREAM_DEV_EX
+        {
+            public NET_DVR_STREAM_MEDIA_SERVER struStreamMediaSvrCfg;/*��ý�����������*/
+            public NET_DVR_DEV_CHAN_INFO_EX struDevChanInfo;/* ����ͨ����Ϣ */
+        }
+
+        //��̬������������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DEV_DDNS_INFO
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = MAX_DOMAIN_NAME)]
+            public string byDevAddress;         //�豸����(IPServer��hiDDNSʱ�����豸���кŻ��߱���) 
+            public byte byTransProtocol;		//����Э�����ͣ�0- TCP��1- UDP��2- �ಥ
+            public byte byTransMode;			//��������ģʽ 0�������� 1��������
+            public byte byDdnsType;			    //�������������ͣ�0- IPServer��1- Dyndns��2- PeanutHull(������)��3- NO-IP��4- hiDDNS
+            public byte byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = MAX_DOMAIN_NAME)]
+            public string byDdnsAddress;        //DDNS��������ַ
+            public ushort wDdnsPort;			//DDNS�������˿ں�
+            public byte byChanType;		        //ͨ�����ͣ�0-��ͨͨ����1-��ͨ����2-��ID
+            public byte byFactoryType;			//ǰ���豸��������,ͨ���ӿ�NET_DVR_GetIPCProtoList��ȡ
+            public uint dwChannel;				//ͨ����
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = STREAM_ID_LEN)]
+            public string byStreamId;           // ��ID��ͨ������ byChanType Ϊ 2 ʱ��Ч
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = NAME_LEN)]
+            public string sUserName;  	        //����������½�ʺ�
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = PASSWD_LEN)]
+            public string sPassword;  	        //������������
+            public ushort wDevPort;			 	//�豸�˿ں�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        //��̬����ȡ������
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_DEC_DDNS_DEV
+        {
+            public NET_DVR_DEV_DDNS_INFO struDdnsInfo;/*��ý�����������*/
+            public NET_DVR_STREAM_MEDIA_SERVER struMediaServer;/* ����ͨ����Ϣ */
+        }
+
+        //ȡ��ģʽ����������
+        [StructLayout(LayoutKind.Explicit)]
+        public struct NET_DVR_DEC_STREAM_MODE
+        {
+            [FieldOffsetAttribute(0)]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 300, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; //�������С
+            public void Init()
+            {
+                byRes = new byte[300];
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_MATRIX_DEC_CHAN_INFO_V41
+        {
+            public uint dwSize;
+            public byte byStreamMode;/*ȡ��ģʽ��0- ��Ч��1- ͨ��IP������ȡ����2- ͨ��URLȡ����3- ͨ����̬�����������豸ȡ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_DVR_DEC_STREAM_MODE uDecStreamMode;/*ȡ����Ϣ*/
+            public uint dwPlayMode;/*����״̬��0-��̬���룬1��ѭ�����룬2����ʱ��طţ�3�����ļ��ط�*/
+            public NET_DVR_TIME StartTime;/* ��ʱ��طſ�ʼʱ�� */
+            public NET_DVR_TIME StopTime;/* ��ʱ��ط�ֹͣʱ�� */
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 128)]
+            public string sFileName;/* ���ļ��ط��ļ��� */
+            public uint dwGetStreamMode;/*ȡ��ģʽ:1-������2-����*/
+            public NET_DVR_MATRIX_PASSIVEMODE struPassiveMode;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        public const int MAX_RESOLUTIONNUM = 64; //֧�ֵ����ֱ�����Ŀ
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MATRIX_ABILITY
+        {
+            public uint dwSize;
+            public byte byDecNums;
+            public byte byStartChan;
+            public byte byVGANums;
+            public byte byBNCNums;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8*12, ArraySubType = UnmanagedType.I1)]
+            public byte[] byVGAWindowMode;/*VGA֧�ֵĴ���ģʽ*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byBNCWindowMode;/*BNC֧�ֵĴ���ģʽ*/
+            public byte byDspNums;   
+            public byte byHDMINums;//HDMI��ʾͨ����������25��ʼ��
+            public byte byDVINums;//DVI��ʾͨ����������29��ʼ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 13, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_RESOLUTIONNUM, ArraySubType = UnmanagedType.I1)]
+            public byte[] bySupportResolution;//���������ö�ٶ���,һ���ֽڴ���һ���ֱ�����//��֧�֣�1��֧�֣�0����֧��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4*8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byHDMIWindowMode;//HDMI֧�ֵĴ���ģʽ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4*8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDVIWindowMode;//DVI֧�ֵĴ���ģʽ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 24, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        //�ϴ�logo�ṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DISP_LOGOCFG
+        {
+            public uint dwCorordinateX;//ͼƬ��ʾ����X����
+            public uint dwCorordinateY;//ͼƬ��ʾ����Y����
+            public ushort wPicWidth; //ͼƬ��
+            public ushort wPicHeight; //ͼƬ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public byte byFlash;//�Ƿ���˸1-��˸��0-����˸
+            public byte byTranslucent;//�Ƿ��͸��1-��͸����0-����͸��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 6, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;//����
+            public uint dwLogoSize;//LOGO��С������BMP���ļ�ͷ
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PICTURECFG
+        {
+            public uint dwSize;        //��С
+            public byte byUseType;    //1-��ͼ��2-GIFͼƬ��3-CADͼƬ 4-�����ͼƬ
+            public byte bySequence;//���  
+            public byte byOverlayEnabled; //ͼƬ����ʹ�ܣ��Ƿ����ϴ�ͼƬ����ͼƬ���Ӳ��� 1-�������Ӳ�����0-������
+            public byte byRes;
+            public NET_DVR_BASEMAP_CFG struBasemapCfg;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPicName;//ͼƬ����
+            public uint dwVideoWall;       //ǽ�ţ�1�ֽ�ǽ��+1�ֽ�ͨ�����+2�ֽڴ��ںţ�
+            public byte byFlash; //ͼƬ��˸ʹ�ܣ�1-��˸��0-����˸
+            public byte byTranslucent; //ͼƬ��͸��ʹ�ܣ�1-��͸����0-����͸��
+            public byte byShowEnabled; //ͼƬ��ʾʹ�ܣ�1-��ʾ��0-����
+            public byte byPictureType; //ͼƬ���ͣ�1-bmp��2-jpg��3-png������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 24, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_OUTPUT_PIC_CFG
+        {
+            public uint dwSize;
+            public uint dwOutputPicNo;  //ͼƬ���
+            public byte byEnable; //logo�Ƿ���ʾ��1-��ʾ��0-����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;    
+            public NET_DVR_RECTCFG_EX struRect;//logoλ�ã�����ڷ�Χ�ܴ�СΪ1920*1920
+            public byte byFlash;  //�Ƿ���˸1-��˸��0-����˸
+            public byte byTranslucent; //�Ƿ��͸��1-��͸����0-����͸��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;                //����
+            public uint dwOutputPicWinNo; //�����ͼƬ���ںţ�1�ֽ��豸��+1�ֽ�����ں�+2�ֽ������ͼƬ���ںţ�,��ȡȫ��ʱ��Ч
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 28, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes3;
+        }
+
+        public const int MAX_OSD_LEN =  64;  //�����OSD����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_OUTPUT_OSD_CFG
+        {
+            public uint dwSize;
+            public byte byEnable; //OSD�Ƿ���ʾ��0-����ʾ��1-��ʾ
+            public byte byFontSize; //�����С��1-��2-�У�3-С
+            public byte byOSDColor; //OSD��ɫ���ã�0-Ĭ�ϣ� 1-�ڣ�2-�ף�3-�죬4-�̣�5-��
+            public byte byRes1;    
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_OSD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byOsdContent; //OSD����
+            public NET_DVR_RECTCFG_EX struRect;//OSDλ�ã�����ڷ�Χ�ܴ�СΪ1920*1920
+            public uint dwOsdWinNo; //�����OSD���ںţ�1�ֽ��豸��+1�ֽ�����ں�+2�ֽ�OSD���ںţ�����ȡ����ʱ��Ч
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;                //����
+        }
+
+        /*��������*/
+        public const int NET_DVR_ENCODER_UNKOWN = 0;/*δ֪�����ʽ*/
+        public const int NET_DVR_ENCODER_H264 = 1;/*HIK 264*/
+        public const int NET_DVR_ENCODER_S264 = 2;/*Standard H264*/
+        public const int NET_DVR_ENCODER_MPEG4 = 3;/*MPEG4*/
+        public const int NET_DVR_ORIGINALSTREAM = 4;/*Original Stream*/
+        public const int NET_DVR_PICTURE = 5;//*Picture*/
+        public const int NET_DVR_ENCODER_MJPEG = 6;
+        public const int NET_DVR_ECONDER_MPEG2 = 7;
+        /* �����ʽ */
+        public const int NET_DVR_STREAM_TYPE_UNKOWN = 0;/*δ֪�����ʽ*/
+        public const int NET_DVR_STREAM_TYPE_HIKPRIVT = 1; /*�����Զ�������ʽ*/
+        public const int NET_DVR_STREAM_TYPE_TS = 7;/* TS��� */
+        public const int NET_DVR_STREAM_TYPE_PS = 8;/* PS��� */
+        public const int NET_DVR_STREAM_TYPE_RTP = 9;/* RTP��� */
+
+        /*����ͨ��״̬*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MATRIX_CHAN_STATUS
+        {
+            public byte byDecodeStatus;/*��ǰ״̬:0:δ������1����������*/
+            public byte byStreamType;/*��������*/
+            public byte byPacketType;/*�����ʽ*/
+            public byte byRecvBufUsage;/*���ջ���ʹ����*/
+            public byte byDecBufUsage;/*���뻺��ʹ����*/
+            public byte byFpsDecV;/*��Ƶ����֡��*/
+            public byte byFpsDecA;/*��Ƶ����֡��*/
+            public byte byCpuLoad;/*DSP CPUʹ����*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public uint dwDecodedV;/*�������Ƶ֡*/
+            public uint dwDecodedA;/*�������Ƶ֡*/
+            public ushort wImgW;/*��������ǰ��ͼ���С,��*/
+            public ushort wImgH; //��
+            public byte byVideoFormat;/*��Ƶ��ʽ:0-NON,NTSC--1,PAL--2*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+            public uint dwDecChan; /*��ȡȫ������ͨ��״̬ʱ��Ч������ʱ����0*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes3;
+        }
+
+        /*��ʾͨ��״̬*/
+        public const int NET_DVR_MAX_DISPREGION = 16;         /*ÿ����ʾͨ����������ʾ�Ĵ���*/
+        //VGA�ֱ��ʣ�Ŀǰ���õ��ǣ�VGA_THS8200_MODE_XGA_60HZ��VGA_THS8200_MODE_SXGA_60HZ��
+        //
+        public enum VGA_MODE
+        {
+            /*VGA*/
+            VGA_NOT_AVALIABLE,
+            VGA_THS8200_MODE_SVGA_60HZ,    //(800*600)
+            VGA_THS8200_MODE_SVGA_75HZ,    //(800*600)
+            VGA_THS8200_MODE_XGA_60HZ,     //(1024*768)
+            VGA_THS8200_MODE_XGA_75HZ,     //(1024*768)
+            VGA_THS8200_MODE_SXGA_60HZ,    //(1280*1024)
+            VGA_THS8200_MODE_720P_60HZ,    //(1280*720)
+            VGA_THS8200_MODE_1080I_60HZ,   //(1920*1080)
+            VGA_THS8200_MODE_1080P_30HZ,   //(1920*1080)
+            VGA_THS8200_MODE_UXGA_30HZ,    //(1600*1200)
+            /*HDMI*/
+            HDMI_SII9134_MODE_XGA_60HZ,	   //(1024*768)
+            HDMI_SII9134_MODE_SXGA_60HZ,   //(1280*1024)
+            HDMI_SII9134_MODE_SXGA2_60HZ,  //(1280*960)
+            HDMI_SII9134_MODE_720P_60HZ,   //(1280*720)	
+            HDMI_SII9134_MODE_720P_50HZ,   //(1280*720)		
+            HDMI_SII9134_MODE_1080I_60HZ,  //(1920*1080)
+            HDMI_SII9134_MODE_1080I_50HZ,  //(1920*1080)	
+            HDMI_SII9134_MODE_1080P_25HZ,  //(1920*1080)
+            HDMI_SII9134_MODE_1080P_30HZ,  //(1920*1080)
+            HDMI_SII9134_MODE_1080P_50HZ,  //(1920*1080)
+            HDMI_SII9134_MODE_1080P_60HZ,  //(1920*1080)
+            HDMI_SII9134_MODE_UXGA_60HZ,   //(1600*1200)
+            /*DVI*/
+            DVI_SII9134_MODE_XGA_60HZ,	   //(1024*768)
+            DVI_SII9134_MODE_SXGA_60HZ,	   //(1280*1024)
+            DVI_SII9134_MODE_SXGA2_60HZ,   //(1280*960)
+            DVI_SII9134_MODE_720P_60HZ,	   //(1280*720)	
+            DVI_SII9134_MODE_720P_50HZ,    //(1280*720)		
+            DVI_SII9134_MODE_1080I_60HZ,   //(1920*1080)
+            DVI_SII9134_MODE_1080I_50HZ,   //(1920*1080)
+            DVI_SII9134_MODE_1080P_25HZ,   //(1920*1080)
+            DVI_SII9134_MODE_1080P_30HZ,   //(1920*1080)
+            DVI_SII9134_MODE_1080P_50HZ,   //(1920*1080)
+            DVI_SII9134_MODE_1080P_60HZ,   //(1920*1080)
+            DVI_SII9134_MODE_UXGA_60HZ,     //(1600*1200)
+            VGA_DECSVR_MODE_SXGA2_60HZ,
+            HDMI_DECSVR_MODE_1080P_24HZ,
+            DVI_DECSVR_MODE_1080P_24HZ,
+            YPbPr_DECSVR_MODE_720P_60HZ,
+            YPbPr_DECSVR_MODE_1080I_60HZ
+        }
+
+        //��֡�ʶ���
+        public const int LOW_DEC_FPS_1_2 = 51;
+        public const int LOW_DEC_FPS_1_4 = 52;
+        public const int LOW_DEC_FPS_1_8 = 53;
+        public const int LOW_DEC_FPS_1_16 = 54;
+
+        /*��Ƶ��ʽ��׼*/
+        public enum VIDEO_STANDARD
+        {
+            VS_NON = 0,
+            VS_NTSC = 1,
+            VS_PAL = 2,
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct UNION_VIDEOPLATFORM
+        {
+            /*�����Ӵ��ڶ�Ӧ����ͨ������Ӧ�Ľ�����ϵͳ�IJ�λ��(������Ƶ�ۺ�ƽ̨�н�����ϵͳ��Ч)*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_WINDOWS, ArraySubType = UnmanagedType.I1)]
+            public byte[] byJoinDecoderId;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct UNION_NOTVIDEOPLATFORM
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VGA_DISP_CHAN_CFG
+        {
+            public uint dwSize;
+            public byte byAudio;/*��Ƶ�Ƿ���,0-��1-��*/
+            public byte byAudioWindowIdx;/*��Ƶ�����Ӵ���*/
+            public byte byVgaResolution;/*VGA�ķֱ���*/
+            public byte byVedioFormat;/*��Ƶ��ʽ��1:NTSC,2:PAL,0-NON*/
+            public uint dwWindowMode;/*����ģʽ�������������ȡ��Ŀǰ֧��1,2,4,9,16*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_WINDOWS, ArraySubType = UnmanagedType.I1)]
+            public byte[] byJoinDecChan;/*�����Ӵ��ڹ����Ľ���ͨ��*/
+            public byte byEnlargeStatus;          /*�Ƿ��ڷŴ�״̬��0�����Ŵ�1���Ŵ�*/
+            public byte byEnlargeSubWindowIndex;//�Ŵ���Ӵ��ں�
+	        [StructLayoutAttribute(LayoutKind.Explicit)]
+            public struct struDiff
+            {
+                [FieldOffsetAttribute(0)]
+                [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+                 public byte[] byRes;
+            }
+            public byte byUnionType;/*���ֹ����壬0-��Ƶ�ۺ�ƽ̨�ڲ���������ʾͨ�����ã�1-������������ʾͨ������*/
+            public byte byScale; /*��ʾģʽ��0---��ʵ��ʾ��1---������ʾ( ���BNC )*/
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DISP_CHAN_STATUS
+        {
+            public byte byDispStatus;/*��ʾ״̬��0��δ��ʾ��1��������ʾ*/
+            public byte byBVGA; /*VGA/BNC*/
+            public byte byVideoFormat;/*��Ƶ��ʽ:1:NTSC,2:PAL,0-NON*/
+            public byte byWindowMode;/*��ǰ����ģʽ*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_WINDOWS, ArraySubType = UnmanagedType.I1)]
+            public byte[] byJoinDecChan;/*�����Ӵ��ڹ����Ľ���ͨ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NET_DVR_MAX_DISPREGION, ArraySubType = UnmanagedType.I1)]
+            public byte[] byFpsDisp;/*ÿ���ӻ������ʾ֡��*/
+            public byte byScreenMode;			//��Ļģʽ0-��ͨ 1-����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 31, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        public const int MAX_DECODECHANNUM = 32;//��·������������ͨ����
+        public const int MAX_DISPCHANNUM = 24;//��·�����������ʾͨ����
+
+        /*�������豸״̬*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DECODER_WORK_STATUS
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DECODECHANNUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_MATRIX_CHAN_STATUS[] struDecChanStatus;/*����ͨ��״̬*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DISPCHANNUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_DISP_CHAN_STATUS[] struDispChanStatus;/*��ʾͨ��״̬*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ANALOG_ALARMIN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAlarmInStatus;/*��������״̬*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ANALOG_ALARMOUT, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAalarmOutStatus;/*�������״̬*/
+            public byte byAudioInChanStatus;/*�����Խ�״̬*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 127, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //2009-12-1 ���ӱ������벥�ſ���
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PASSIVEDECODE_CONTROL
+        {
+            public uint dwSize;
+            public uint dwPlayCmd;		/* �������� ���ļ���������*/
+            public uint dwCmdParam;		/* ����������� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;//Reverse
+        }
+
+        public const int PASSIVE_DEC_PAUSE = 1;	/*����������ͣ(���ļ�����Ч)*/
+        public const int PASSIVE_DEC_RESUME = 2;	/*�ָ���������(���ļ�����Ч)*/
+        public const int PASSIVE_DEC_FAST = 3;   /*���ٱ�������(���ļ�����Ч)*/
+        public const int PASSIVE_DEC_SLOW = 4;   /*���ٱ�������(���ļ�����Ч)*/
+        public const int PASSIVE_DEC_NORMAL = 5;   /*������������(���ļ�����Ч)*/
+        public const int PASSIVE_DEC_ONEBYONE =	6;  /*�������뵥֡����(����)*/
+        public const int PASSIVE_DEC_AUDIO_ON = 7;   /*��Ƶ����*/
+        public const int PASSIVE_DEC_AUDIO_OFF = 8; 	 /*��Ƶ�ر�*/
+        public const int PASSIVE_DEC_RESETBUFFER = 9;    /*��ջ�����*/
+
+        //2009-12-16 ���ӿ��ƽ���������ͨ������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MATRIX_DECCHAN_CONTROL
+        {        
+            public uint dwSize;
+            public byte byDecChanScaleStatus;/*����ͨ����ʾ���ſ���,1��ʾ������ʾ��0��ʾ��ʵ��ʾ*/
+            public byte byDecodeDelay;//������ʱ��0-Ĭ�ϣ�1-ʵʱ�Ժã�2-ʵʱ�ԽϺã�3-ʵʱ���У��������У�4-�����ԽϺã�5-�����Ժã�0xff-�Զ�����   
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 66, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;	
+        }
+        /************************************��·������(end)***************************************/
+
+        /************************************��Ƶ�ۺ�ƽ̨(begin)***************************************/
+        public const int MAX_SUBSYSTEM_NUM = 80;   //һ������ϵͳ�������ϵͳ����
+        public const int MAX_SUBSYSTEM_NUM_V40 = 120;   //һ������ϵͳ�������ϵͳ����
+        public const int MAX_SERIALLEN = 36;  //������кų���
+        public const int MAX_LOOPPLANNUM = 16;  //���ƻ��л���
+        public const int DECODE_TIMESEGMENT = 4;     //�ƻ�����ÿ��ʱ�����
+
+        public const int MAX_DOMAIN_NAME = 64;  /* ����������� */
+        public const int MAX_DISKNUM_V30 = 33; //9000�豸���Ӳ����/* ���33��Ӳ��(����16������SATAӲ�̡�1��eSATAӲ�̺�16��NFS��) */
+        public const int MAX_DAYS = 7;       //ÿ������
+        public const int MAX_DISPNUM_V41 = 32;
+        public const int MAX_WINDOWS_NUM = 12;
+        public const int MAX_VOUTNUM = 32;
+        public const int MAX_SUPPORT_RES = 32;
+        public const int MAX_BIGSCREENNUM = 100;
+
+        public const int VIDEOPLATFORM_ABILITY = 0x210; //��Ƶ�ۺ�ƽ̨������
+        public const int MATRIXDECODER_ABILITY_V41 = 0x260; //������������      
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SUBSYSTEMINFO
+        {
+            public byte bySubSystemType;//��ϵͳ���ͣ�1-��������ϵͳ��2-��������ϵͳ��0-NULL���˲���ֻ�ܻ�ȡ��
+            public byte byChan;//��ϵͳͨ�������˲���ֻ�ܻ�ȡ��
+            public byte byLoginType;//ע�����ͣ�1-ֱ����2-DNS��3-������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 5, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_DVR_IPADDR struSubSystemIP;/*IP��ַ�����޸ģ�*/
+            public ushort wSubSystemPort;//��ϵͳ�˿ںţ����޸ģ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 6, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+            public NET_DVR_IPADDR struSubSystemIPMask;//��������
+            public NET_DVR_IPADDR struGatewayIpAddr;	/* ���ص�ַ*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUserName;/* �û��� ���˲���ֻ�ܻ�ȡ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassword;/*���루�˲���ֻ�ܻ�ȡ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = MAX_DOMAIN_NAME)]
+            public string sDomainName;//����(���޸�)
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = MAX_DOMAIN_NAME)]
+            public string sDnsAddress;/*DNS������IP��ַ*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = SERIALNO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sSerialNumber;//���кţ��˲���ֻ�ܻ�ȡ��
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ALLSUBSYSTEMINFO
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_SUBSYSTEM_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SUBSYSTEMINFO[] struSubSystemInfo;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_LOOPPLAN_SUBCFG
+        {
+            public uint dwSize;
+            public uint dwPoolTime; /*��ѯ�������λ����*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CYCLE_CHAN_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_MATRIX_CHAN_INFO_V30[] struChanConInfo;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]            
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ALARMMODECFG
+        {
+            public uint dwSize;
+            public byte byAlarmMode;//�����������ͣ�1-��ѯ��2-���� 
+            public ushort wLoopTime;//��ѯʱ��, ��λ���� 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 9, ArraySubType = UnmanagedType.I1)] 
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CODESPLITTERINFO
+        {
+            public uint dwSize;
+            public NET_DVR_IPADDR struIP;/*�����IP��ַ*/
+            public ushort wPort;//������˿ں�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 6, ArraySubType = UnmanagedType.I1)]             
+            public byte[] byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)] 
+            public byte[] sUserName;/* �û��� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)] 
+            public byte[] sPassword;/*���� */
+            public byte byChan;//�����485��
+            public byte by485Port;//485�ڵ�ַ      
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 14, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ASSOCIATECFG
+        {
+            public byte byAssociateType;//�������ͣ�1-����
+            public ushort wAlarmDelay;//������ʱ��0��5�룻1��10�룻2��30�룻3��1���ӣ�4��2���ӣ�5��5���ӣ�6��10���ӣ�
+            public byte byAlarmNum;//�����ţ������ֵ��Ӧ�ø�����ͬ�ı�������ͬ��ֵ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)] 
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DYNAMICDECODE
+        {
+            public uint dwSize;
+            public NET_DVR_ASSOCIATECFG struAssociateCfg;//������̬��������ṹ
+            public NET_DVR_PU_STREAM_CFG struPuStreamCfg;//��̬����ṹ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)] 
+            public byte[] byRes;
+        }
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DECODESCHED
+        {
+            public NET_DVR_SCHEDTIME struSchedTime;
+            public byte byDecodeType;/*0-�ޣ�1-��ѯ���룬2-��̬����*/
+            public byte byLoopGroup;//��ѯ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 6, ArraySubType = UnmanagedType.I1)] 
+            public byte[] byRes;
+            public NET_DVR_PU_STREAM_CFG struDynamicDec;//��̬����
+        }
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PLANDECODE
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * DECODE_TIMESEGMENT, ArraySubType = UnmanagedType.I1)] 
+            public NET_DVR_DECODESCHED[] struDecodeSched;//��һ��Ϊ��ʼ����9000һ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)] 
+            public byte[] byres;
+        }
+        /************************************��Ƶ�ۺ�ƽ̨(end)***************************************/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VIDEOPLATFORM_ABILITY
+        {
+            public uint dwSize;
+            public byte byCodeSubSystemNums;//������ϵͳ����
+            public byte byDecodeSubSystemNums;//������ϵͳ����
+            [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.ByValArray, SizeConst = 12, ArraySubType = System.Runtime.InteropServices.UnmanagedType.I1)]
+            public byte[] byWindowMode; /*��ʾͨ��֧�ֵĴ���ģʽ*/
+            [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = System.Runtime.InteropServices.UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SUBSYSTEM_ABILITY
+        {
+            /*��ϵͳ���ͣ�1-��������ϵͳ��2-��������ϵͳ��3-���������ϵͳ��4-����������ϵͳ��5-�������ϵͳ��6-����������ϵͳ��7-������ϵͳ��8-V6������ϵͳ��9-V6��ϵͳ��0-NULL���˲���ֻ�ܻ�ȡ��*/
+            public byte bySubSystemType;
+            public byte byChanNum;//��ϵͳͨ����
+            public byte byStartChan;//��ϵͳ��ʼͨ����
+            public byte bySlotNum;//��� 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public struDecoderSystemAbility _struAbility;
+        }
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct struDecoderSystemAbility
+        {
+            public byte byVGANums;//VGA��ʾͨ����������1��ʼ��
+            public byte byBNCNums;//BNC��ʾͨ����������9��ʼ��
+            public byte byHDMINums;//HDMI��ʾͨ����������25��ʼ��
+            public byte byDVINums;//DVI��ʾͨ����������29��ʼ��
+
+            public byte byLayerNums;//����ƴ���У�������ʱ��֧��ͼ����
+            public byte bySpartan;//���Թ��ܣ�0-��֧�֣�1-֧��
+            public byte byDecType; //������ϵͳ���ͣ�0-��ͨ��,1-��ǿ��(��ͨ�ͷ���ʱǰ4������ʹ��������Դ����ǿ���޴����ƣ���ǿ�����ɱ�������ϵͳ��16·D1������Դ
+            //��ǿ�ͱ���������Ϊ��������Դ�ɱ����ã���ͨ�����ܱ�����)
+            public byte byOutputSwitch;//�Ƿ�֧��HDMI/DVI�����л���0-��֧�֣�1-֧��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 39, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public byte byDecoderType; //���������  0-��ͨ����� 1-�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 152, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct struAbility
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 200, ArraySubType = UnmanagedType.I1)]
+            //  [FieldOffsetAttribute(0)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VIDEOPLATFORM_ABILITY_V40
+        {
+            public uint dwSize;
+            public byte byCodeSubSystemNums;
+            public byte byDecodeSubSystemNums;//������ϵͳ����
+            public byte bySupportNat;//�Ƿ�֧��NAT��0-��֧�֣�1-֧��
+            public byte byInputSubSystemNums;//����������ϵͳ����
+            public byte byOutputSubSystemNums;//���������ϵͳ����
+            public byte byCodeSpitterSubSystemNums;//�����ϵͳ����
+            public byte byAlarmHostSubSystemNums;//������ϵͳ����
+            public byte bySupportBigScreenNum;//��֧�������ɴ����ĸ���
+            public byte byVCASubSystemNums;//������ϵͳ����
+            public byte byV6SubSystemNums;//V6��ϵͳ����
+            public byte byV6DecoderSubSystemNums;//V6������ϵͳ����
+            public byte bySupportBigScreenX;/*����ƴ�ӵ�ģʽ��m��n*/
+            public byte bySupportBigScreenY;
+            public byte bySupportSceneNums;//֧�ֳ���ģʽ�ĸ���
+            public byte byVcaSupportChanMode;//����֧�ֵ�ͨ��ʹ��ģʽ��0-ʹ�ý���ͨ����1-ʹ����ʾͨ������ͨ����
+            public byte bySupportScreenNums;//��֧�ֵĴ�������Ļ������
+            public byte bySupportLayerNums;//��֧�ֵ�ͼ������0xff-��Ч
+            public byte byNotSupportPreview;//�Ƿ�֧��Ԥ��,1-��֧�֣�0-֧��
+            public byte byNotSupportStorage;//�Ƿ�֧�ִ洢,1-��֧�֣�0-֧��
+            public byte byUploadLogoMode;//�ϴ�logoģʽ��0-�ϴ�������ͨ����1-�ϴ�����ʾͨ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_SUBSYSTEM_NUM_V40, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SUBSYSTEM_ABILITY[] struSubSystemAbility;
+            public byte by485Nums;//485���ڸ���
+            public byte by232Nums;//232���ڸ���
+            public byte bySerieStartChan;//��ʼͨ��
+            public byte byScreenMode;//����ģʽ��0-�����ɿͻ��˷��䣬1-�������豸�˷���
+            public byte byDevVersion;//�豸�汾��0-B10/B11/B12��1-B20
+            public byte bySupportBaseMapNums;//��֧�ֵĵ�ͼ������ͼ�Ŵ�1��ʼ
+            public ushort wBaseLengthX;//ÿ������С�Ļ�׼ֵ��B20ʹ��
+            public ushort wBaseLengthY;
+            public byte bySupportPictureTrans;  //�Ƿ�֧��ͼƬ���ԣ�0-��֧�֣�1-֧��	
+            public byte bySupportPreAllocDec;   //�Ƿ�֧�����ܽ�����ԴԤ���䣬0-��֧�֣�1-֧��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 628, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }       
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SINGLESCREENCFG
+        {
+            public byte byScreenSeq;//��Ļ��ţ�0xff��ʾ���ô���,64-T��������һ����ʾ����
+            public byte bySubSystemNum;//������ϵͳ��λ��,��������ֵû����
+            public byte byDispNum;//������ϵͳ�϶�Ӧ��ʾͨ���ţ�64-T�������и�ֵ��ʾ����������ʾͨ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 9, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_BIGSCREENCFG
+        {
+            public uint dwSize;
+            public byte byEnable;//����ƴ��ʹ�ܣ�0-��ʹ�ܣ�1-ʹ��
+            public byte byModeX;/*����ƴ��ģʽ*/
+            public byte byModeY;
+            public byte byMainDecodeSystem;//�ۺ�ƽ̨�Ľ�����и�ֵ��ʾ������λ�ţ�64-T�������и�ֵ��ʾ����ͨ����
+            public byte byMainDecoderDispChan;//����������ʾͨ���ţ�1.1netra�汾������netra��������������ʾͨ�������ܹ���Ϊ������64-T�и�ֵ��Ч
+            public byte byVideoStandard;      //����ÿ��������ʽ��ͬ 1:NTSC,2:PAL
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public uint dwResolution;         //����ÿ�������ֱ�����ͬ
+            //����ƴ�Ӵ���Ļ��Ϣ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_BIGSCREENNUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SINGLESCREENCFG[] struFollowSingleScreen;
+            //��ʼ�������Ϊ��׼�����������
+            public ushort wBigScreenX; //�����ڵ���ǽ����ʼX����
+            public ushort wBigScreenY; //�����ڵ���ǽ����ʼY����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 12, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+
+            public void Init()
+            {
+                byRes1 = new byte[2];
+                struFollowSingleScreen = new NET_DVR_SINGLESCREENCFG[MAX_BIGSCREENNUM];
+                byRes2 = new byte[12];
+            }
+        }       
+
+        /************************************��Ƶ�ۺ�ƽ̨(end)***************************************/
+        
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_EMAILCFG
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 32)]
+            public string sUserName;
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 32)]
+            public string sPassWord;
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 32)]
+            public string sFromName;/* Sender *///�ַ����еĵ�һ���ַ������һ���ַ�������"@",�����ַ�����Ҫ��"@"�ַ�
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 48)]
+            public string sFromAddr;/* Sender address */
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 32)]
+            public string sToName1;/* Receiver1 */
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 32)]
+            public string sToName2;/* Receiver2 */
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 48)]
+            public string sToAddr1;/* Receiver address1 */
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 48)]
+            public string sToAddr2;/* Receiver address2 */
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 32)]
+            public string sEmailServer;/* Email server address */
+            public byte byServerType;/* Email server type: 0-SMTP, 1-POP, 2-IMTP��*/
+            public byte byUseAuthen;/* Email server authentication method: 1-enable, 0-disable */
+            public byte byAttachment;/* enable attachment */
+            public byte byMailinterval;/* mail interval 0-2s, 1-3s, 2-4s. 3-5s*/
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_COMPRESSIONCFG_NEW
+        {
+            public uint dwSize;
+            public NET_DVR_COMPRESSION_INFO_EX struLowCompression;//��ʱ¼��
+            public NET_DVR_COMPRESSION_INFO_EX struEventCompression;//�¼�����¼��
+        }
+
+        //��̨Ԥ�õ���Ϣ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PRESET_NAME
+        {
+            public uint dwSize;
+            public ushort wPresetNum;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byName;
+            public ushort wPanPos;
+            public ushort wTiltPos;
+            public ushort wZoomPos;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 58, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //���λ����Ϣ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PTZPOS
+        {
+            public ushort wAction;//��ȡʱ���ֶ���Ч
+            public ushort wPanPos;//ˮƽ����
+            public ushort wTiltPos;//��ֱ����
+            public ushort wZoomPos;//�䱶����
+        }
+
+        //�����Χ��Ϣ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PTZSCOPE
+        {
+            public ushort wPanPosMin;//ˮƽ����min
+            public ushort wPanPosMax;//ˮƽ����max
+            public ushort wTiltPosMin;//��ֱ����min
+            public ushort wTiltPosMax;//��ֱ����max
+            public ushort wZoomPosMin;//�䱶����min
+            public ushort wZoomPosMax;//�䱶����max
+        }
+
+        //rtsp���� ipcameraר��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_RTSPCFG
+        {
+            public uint dwSize;//����
+            public ushort wPort;//rtsp�����������˿�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 54, ArraySubType = UnmanagedType.I1)]
+            public byte[] byReserve;//Ԥ��
+        }
+
+        /********************************�ӿڲ����ṹ(begin)*********************************/
+
+        //NET_DVR_Login()�����ṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DEVICEINFO
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = SERIALNO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sSerialNumber;//���к�
+            public byte byAlarmInPortNum;//DVR�����������
+            public byte byAlarmOutPortNum;//DVR�����������
+            public byte byDiskNum;//DVRӲ�̸���
+            public byte byDVRType;//DVR����, 1:DVR 2:ATM DVR 3:DVS ......
+            public byte byChanNum;//DVR ͨ������
+            public byte byStartChan;//��ʼͨ����,����DVS-1,DVR - 1
+        }
+
+        //NET_DVR_Login_V30()�����ṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DEVICEINFO_V30
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = SERIALNO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sSerialNumber;  //���к�
+            public byte byAlarmInPortNum;		        //�����������
+            public byte byAlarmOutPortNum;		        //�����������
+            public byte byDiskNum;				    //Ӳ�̸���
+            public byte byDVRType;				    //�豸����, 1:DVR 2:ATM DVR 3:DVS ......
+            public byte byChanNum;				    //ģ��ͨ������
+            public byte byStartChan;			        //��ʼͨ����,����DVS-1,DVR - 1
+            public byte byAudioChanNum;                //����ͨ����
+            public byte byIPChanNum;					//�������ͨ����������λ  
+            public byte byZeroChanNum;			//��ͨ��������� //2010-01-16
+            public byte byMainProto;			//����������Э������ 0-private, 1-rtsp,2-ͬʱ֧��private��rtsp
+            public byte bySubProto;				//����������Э������0-private, 1-rtsp,2-ͬʱ֧��private��rtsp
+            public byte bySupport;        //������λ����Ϊ0��ʾ��֧�֣�1��ʾ֧�֣�
+            //bySupport & 0x1, ��ʾ�Ƿ�֧����������
+            //bySupport & 0x2, ��ʾ�Ƿ�֧�ֱ���
+            //bySupport & 0x4, ��ʾ�Ƿ�֧��ѹ������������ȡ
+            //bySupport & 0x8, ��ʾ�Ƿ�֧�ֶ�����
+            //bySupport & 0x10, ��ʾ֧��Զ��SADP
+            //bySupport & 0x20, ��ʾ֧��Raid������
+            //bySupport & 0x40, ��ʾ֧��IPSAN Ŀ¼����
+	        //bySupport & 0x80, ��ʾ֧��rtp over rtsp
+            public byte bySupport1;        // ���������䣬λ����Ϊ0��ʾ��֧�֣�1��ʾ֧��
+	        //bySupport1 & 0x1, ��ʾ�Ƿ�֧��snmp v30
+	        //bySupport1 & 0x2, ֧�����ֻطź�����
+	        //bySupport1 & 0x4, �Ƿ�֧�ֲ������ȼ�	
+	        //bySupport1 & 0x8, �����豸�Ƿ�֧�ֲ���ʱ�����չ
+	        //bySupport1 & 0x10, ��ʾ�Ƿ�֧�ֶ������������33����
+	        //bySupport1 & 0x20, ��ʾ�Ƿ�֧��rtsp over http	
+	        //bySupport1 & 0x80, ��ʾ�Ƿ�֧�ֳ����±�����Ϣ2012-9-28, �һ���ʾ�Ƿ�֧��NET_DVR_IPPARACFG_V40�ṹ��
+            public byte bySupport2; /*������λ����Ϊ0��ʾ��֧�֣���0��ʾ֧��							
+							bySupport2 & 0x1, ��ʾ�������Ƿ�֧��ͨ��URLȡ������
+							bySupport2 & 0x2,  ��ʾ֧��FTPV40
+							bySupport2 & 0x4,  ��ʾ֧��ANR
+							bySupport2 & 0x8,  ��ʾ֧��CCD��ͨ����������
+							bySupport2 & 0x10,  ��ʾ֧�ֲ��������ش���Ϣ����֧��ץ�Ļ����� ���ϱ����ṹ��
+							bySupport2 & 0x20,  ��ʾ�Ƿ�֧�ֵ�����ȡ�豸״̬����
+							bySupport2 & 0x40,  ��ʾ�Ƿ������������豸*/
+            public ushort wDevType;              //�豸�ͺ�
+            public byte bySupport3; //��������չ��λ����Ϊ0��ʾ��֧�֣�1��ʾ֧��
+							//bySupport3 & 0x1, ��ʾ�Ƿ������
+							// bySupport3 & 0x4 ��ʾ֧�ְ������ã� ������� ͨ��ͼ��������������������IP�������롢������������
+                            // �û��������豸����״̬��JPEGץͼ����ʱ��ʱ��ץͼ��Ӳ��������� 
+							//bySupport3 & 0x8Ϊ1 ��ʾ֧��ʹ��TCPԤ����UDPԤ�����ಥԤ���е�"��ʱԤ��"�ֶ���������ʱԤ������������ʹ�����ַ�ʽ������ʱԤ����������bySupport3 & 0x8Ϊ0ʱ����ʹ�� "˽����ʱԤ��"Э�顣
+							//bySupport3 & 0x10 ��ʾ֧��"��ȡ����������Ҫ״̬��V40��"��
+							//bySupport3 & 0x20 ��ʾ�Ƿ�֧��ͨ��DDNS��������ȡ��
+
+            public byte byMultiStreamProto;//�Ƿ�֧�ֶ�����,��λ��ʾ,0-��֧��,1-֧��,bit1-����3,bit2-����4,bit7-��������bit-8������
+            public byte byStartDChan;		//��ʼ����ͨ����,0��ʾ��Ч
+            public byte byStartDTalkChan;	//��ʼ���ֶԽ�ͨ���ţ�������ģ��Խ�ͨ���ţ�0��ʾ��Ч
+            public byte byHighDChanNum;		//����ͨ����������λ
+            public byte bySupport4;
+            public byte byLanguageType;// ֧����������,��λ��ʾ,ÿһλ0-��֧��,1-֧��  
+						//  byLanguageType ����0 ��ʾ ���豸
+						//  byLanguageType & 0x1��ʾ֧������
+						//  byLanguageType & 0x2��ʾ֧��Ӣ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 9, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;		//����
+        }
+
+        [StructLayout(LayoutKind.Sequential)]
+        public struct NET_DVR_DEVICEINFO_V40
+        {
+            public NET_DVR_DEVICEINFO_V30 struDeviceV30;
+            public byte bySupportLock;        //�豸֧���������ܣ����ֶ���SDK�����豸����ֵ����ֵ�ġ�bySupportLockΪ1ʱ��dwSurplusLockTime��byRetryLoginTime��Ч
+            public byte byRetryLoginTime;	    //ʣ��ɳ��Ե�½�Ĵ������û������������ʱ���˲�����Ч
+            public byte byPasswordLevel;      //admin���밲ȫ�ȼ�0-��Ч��1-Ĭ�����룬2-��Ч����,3-���սϸߵ����롣���û�������Ϊ����Ĭ�����루12345�����߷��սϸߵ�����ʱ���ϲ�ͻ�����Ҫ��ʾ�û��������롣      
+            public byte byProxyType;//�������ͣ�0-��ʹ�ô���, 1-ʹ��socks5����, 2-ʹ��EHome����
+            public uint dwSurplusLockTime;	//ʣ��ʱ�䣬��λ�룬�û�����ʱ���˲�����Ч
+            public byte byCharEncodeType;     //�ַ��������ͣ�SDK���нӿڷ��ص��ַ����������ͣ�͸���ӿڳ��⣩��0- ���ַ�������Ϣ(���豸)��1- GB2312(��������)��2- GBK��3- BIG5(��������)��4- Shift_JIS(����)��5- EUC-KR(����)��6- UTF-8��7- ISO8859-1��8- ISO8859-2��9- ISO8859-3�������������ƣ�21- ISO8859-15(��ŷ) 
+            public byte bySupportDev5;//֧��v50�汾���豸������ȡ���豸���ƺ��豸�������Ƴ�����չΪ64�ֽ�
+            public byte bySupport;  //��������չ��λ������0- ��֧�֣�1- ֧��
+            // bySupport & 0x1:  ����
+            // bySupport & 0x2:  0-��֧�ֱ仯�ϱ� 1-֧�ֱ仯�ϱ�
+            public byte byLoginMode; //��¼ģʽ 0-Private��¼ 1-ISAPI��¼
+            public int dwOEMCode;
+            public int iResidualValidity;   //���û�����ʣ����Ч��������λ���죬���ظ�ֵ����ʾ�����Ѿ�����ʹ�ã����硰-3��ʾ�����Ѿ�����ʹ��3�족
+            public byte byResidualValidity; // iResidualValidity�ֶ��Ƿ���Ч��0-��Ч��1-��Ч
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 243, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        public const int NET_DVR_DEV_ADDRESS_MAX_LEN = 129;
+        public const int NET_DVR_LOGIN_USERNAME_MAX_LEN = 64;
+        public const int NET_DVR_LOGIN_PASSWD_MAX_LEN = 64;
+
+        public delegate void LOGINRESULTCALLBACK(int lUserID, int dwResult, IntPtr lpDeviceInfo, IntPtr pUser);
+
+        [StructLayout(LayoutKind.Sequential)]
+        public struct NET_DVR_USER_LOGIN_INFO
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NET_DVR_DEV_ADDRESS_MAX_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sDeviceAddress;
+            public byte byUseTransport;
+            public ushort wPort;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NET_DVR_LOGIN_USERNAME_MAX_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUserName;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NET_DVR_LOGIN_PASSWD_MAX_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassword;
+            public LOGINRESULTCALLBACK cbLoginResult;
+            public IntPtr pUser;
+            public bool bUseAsynLogin;
+            public byte byProxyType; //0:��ʹ�ô�����1��ʹ�ñ�׼������2��ʹ��EHome����
+            public byte byUseUTCTime;    //0-������ת����Ĭ��,1-�ӿ����������ȫ��ʹ��UTCʱ��,SDK���UTCʱ�����豸ʱ����ת��,2-�ӿ����������ȫ��ʹ��ƽ̨����ʱ�䣬SDK���ƽ̨����ʱ�����豸ʱ����ת��
+            public byte byLoginMode; //0-Private, 1-ISAPI, 2-����Ӧ
+            public byte byHttps;    //0-������tls��1-ʹ��tls 2-����Ӧ
+            public int iProxyID;    //������������ţ����Ӵ�����������Ϣʱ�����Ӧ�ķ����������±�ֵ
+            public byte byVerifyMode;  //��֤��ʽ��0-����֤��1-˫����֤��2-������֤����֤����ʹ��TLS��ʱ����Ч;    
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 119, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes3;
+        }
+
+        //sdk���绷��ö�ٱ���������Զ������
+        public enum SDK_NETWORK_ENVIRONMENT
+        {
+            LOCAL_AREA_NETWORK = 0,
+            WIDE_AREA_NETWORK,
+        }
+
+        //��ʾģʽ
+        public enum DISPLAY_MODE
+        {
+            NORMALMODE = 0,
+            OVERLAYMODE
+        }
+
+        //����ģʽ
+        public enum SEND_MODE
+        {
+            PTOPTCPMODE = 0,
+            PTOPUDPMODE,
+            MULTIMODE,
+            RTPMODE,
+            RESERVEDMODE
+        }
+
+        //ץͼģʽ
+        public enum CAPTURE_MODE
+        {
+            BMP_MODE = 0,		//BMPģʽ
+            JPEG_MODE = 1		//JPEGģʽ 
+        }
+
+        //ʵʱ����ģʽ
+        public enum REALSOUND_MODE
+        {
+            MONOPOLIZE_MODE = 1,//��ռģʽ
+            SHARE_MODE = 2		//����ģʽ
+        }
+
+        public struct NET_DVR_CLIENTINFO
+        {
+            public Int32 lChannel;//ͨ����
+            public Int32 lLinkMode;//���λ(31)Ϊ0��ʾ��������Ϊ1��ʾ��������0��30λ��ʾ�������ӷ�ʽ: 0��TCP��ʽ,1��UDP��ʽ,2���ಥ��ʽ,3 - RTP��ʽ��4-����Ƶ�ֿ�(TCP)
+            public IntPtr hPlayWnd;//���Ŵ��ڵľ��,ΪNULL��ʾ������ͼ��
+            public string sMultiCastIP;//�ಥ���ַ
+        }
+
+        //SDK״̬��Ϣ(9000����)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SDKSTATE
+        {
+            public uint dwTotalLoginNum;//��ǰlogin�û���
+            public uint dwTotalRealPlayNum;//��ǰrealplay·��
+            public uint dwTotalPlayBackNum;//��ǰ�طŻ�����·��
+            public uint dwTotalAlarmChanNum;//��ǰ��������ͨ��·��
+            public uint dwTotalFormatNum;//��ǰӲ�̸�ʽ��·��
+            public uint dwTotalFileSearchNum;//��ǰ��־���ļ�����·��
+            public uint dwTotalLogSearchNum;//��ǰ��־���ļ�����·��
+            public uint dwTotalSerialNum;//��ǰ͸��ͨ��·��
+            public uint dwTotalUpgradeNum;//��ǰ����·��
+            public uint dwTotalVoiceComNum;//��ǰ����ת��·��
+            public uint dwTotalBroadCastNum;//��ǰ�����㲥·��
+            public uint dwTotalListenNum;	    //��ǰ�������·��
+            public uint dwEmailTestNum;       //��ǰ�ʼ�����·��
+            public uint dwBackupNum;          // ��ǰ�ļ�����·��
+            public uint dwTotalInquestUploadNum; //��ǰ��Ѷ�ϴ�·��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 6, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwRes;
+        }
+
+        //SDK����֧����Ϣ(9000����)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SDKABL
+        {
+            public uint dwMaxLoginNum;//���login�û��� MAX_LOGIN_USERS
+            public uint dwMaxRealPlayNum;//���realplay·�� WATCH_NUM
+            public uint dwMaxPlayBackNum;//���طŻ�����·�� WATCH_NUM
+            public uint dwMaxAlarmChanNum;//���������ͨ��·�� ALARM_NUM
+            public uint dwMaxFormatNum;//���Ӳ�̸�ʽ��·�� SERVER_NUM
+            public uint dwMaxFileSearchNum;//����ļ�����·�� SERVER_NUM
+            public uint dwMaxLogSearchNum;//�����־����·�� SERVER_NUM
+            public uint dwMaxSerialNum;//���͸��ͨ��·�� SERVER_NUM
+            public uint dwMaxUpgradeNum;//�������·�� SERVER_NUM
+            public uint dwMaxVoiceComNum;//�������ת��·�� SERVER_NUM
+            public uint dwMaxBroadCastNum;//��������㲥·�� MAX_CASTNUM
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 10, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwRes;
+        }
+
+        //�����豸��Ϣ
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_ALARMER
+        {
+            public byte byUserIDValid;/* userid�Ƿ���Ч 0-��Ч��1-��Ч */
+            public byte bySerialValid;/* ���к��Ƿ���Ч 0-��Ч��1-��Ч */
+            public byte byVersionValid;/* �汾���Ƿ���Ч 0-��Ч��1-��Ч */
+            public byte byDeviceNameValid;/* �豸�����Ƿ���Ч 0-��Ч��1-��Ч */
+            public byte byMacAddrValid; /* MAC��ַ�Ƿ���Ч 0-��Ч��1-��Ч */
+            public byte byLinkPortValid;/* login�˿��Ƿ���Ч 0-��Ч��1-��Ч */
+            public byte byDeviceIPValid;/* �豸IP�Ƿ���Ч 0-��Ч��1-��Ч */
+            public byte bySocketIPValid;/* socket ip�Ƿ���Ч 0-��Ч��1-��Ч */
+            public int lUserID; /* NET_DVR_Login()����ֵ, ����ʱ��Ч */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = SERIALNO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sSerialNumber;/* ���к� */
+            public uint dwDeviceVersion;/* �汾��Ϣ ��16λ��ʾ���汾����16λ��ʾ�ΰ汾*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sDeviceName;/* �豸���� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MACADDR_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byMacAddr;/* MAC��ַ */
+            public ushort wLinkPort; /* link port */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128, ArraySubType = UnmanagedType.I1)]
+            public byte[] sDeviceIP;/* IP��ַ */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128, ArraySubType = UnmanagedType.I1)]
+            public byte[] sSocketIP;/* ���������ϴ�ʱ��socket IP��ַ */
+            public byte byIpProtocol; /* Ip�� 0-IPV4, 1-IPV6 */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 11, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        //Ӳ������ʾ�������(�ӽṹ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DISPLAY_PARA
+        {
+            public int bToScreen;
+            public int bToVideoOut;
+            public int nLeft;
+            public int nTop;
+            public int nWidth;
+            public int nHeight;
+            public int nReserved;
+        }
+
+        //Ӳ����Ԥ������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CARDINFO
+        {
+            public int lChannel;//ͨ����
+            public int lLinkMode;//���λ(31)Ϊ0��ʾ��������Ϊ1��ʾ�ӣ�0��30λ��ʾ�������ӷ�ʽ:0��TCP��ʽ,1��UDP��ʽ,2���ಥ��ʽ,3 - RTP��ʽ��4-�绰�ߣ�5��128k������6��256k������7��384k������8��512k������
+            [MarshalAsAttribute(UnmanagedType.LPStr)]
+            public string sMultiCastIP;
+            public NET_DVR_DISPLAY_PARA struDisplayPara;
+        }
+
+        //¼���ļ�����
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_FIND_DATA
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 100)]
+            public string sFileName;//�ļ���
+            public NET_DVR_TIME struStartTime;//�ļ��Ŀ�ʼʱ��
+            public NET_DVR_TIME struStopTime;//�ļ��Ľ���ʱ��
+            public uint dwFileSize;//�ļ��Ĵ�С
+        }
+
+        //¼���ļ�����(9000)
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_FINDDATA_V30
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 100)]
+            public string sFileName;//�ļ���
+            public NET_DVR_TIME struStartTime;//�ļ��Ŀ�ʼʱ��
+            public NET_DVR_TIME struStopTime;//�ļ��Ľ���ʱ��
+            public uint dwFileSize;//�ļ��Ĵ�С
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 32)]
+            public string sCardNum;
+            public byte byLocked;//9000�豸֧��,1��ʾ���ļ��Ѿ�������,0��ʾ�������ļ�
+            public byte byFileType;  //�ļ�����:0����ʱ¼��,1-�ƶ���� ��2������������
+            //3-����|�ƶ���� 4-����&�ƶ���� 5-����� 6-�ֶ�¼��,7���𶯱�����8-����������9-���ܱ�����10-PIR������11-���߱�����12-���ȱ���,14-���ܽ�ͨ�¼�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //¼���ļ�����(cvr)
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_FINDDATA_V40
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 100)]
+            public string sFileName;//�ļ���
+            public NET_DVR_TIME struStartTime;//�ļ��Ŀ�ʼʱ��
+            public NET_DVR_TIME struStopTime;//�ļ��Ľ���ʱ��
+            public uint dwFileSize;//�ļ��Ĵ�С
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 32)]
+            public string sCardNum;
+            public byte byLocked;//9000�豸֧��,1��ʾ���ļ��Ѿ�������,0��ʾ�������ļ�
+            public byte byFileType;  //�ļ�����:0����ʱ¼��,1-�ƶ���� ��2������������
+	        //3-����|�ƶ���� 4-����&�ƶ���� 5-����� 6-�ֶ�¼��,7���𶯱�����8-����������9-���ܱ�����10-PIR������11-���߱�����12-���ȱ���,14-���ܽ�ͨ�¼�
+            public byte byQuickSearch; //0:��ͨ��ѯ�����1�����٣���������ѯ���
+            public byte byRes;
+            public uint dwFileIndex; //�ļ�������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;	
+        }
+
+        //¼���ļ�����(������)
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_FINDDATA_CARD
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 100)]
+            public string sFileName;//�ļ���
+            public NET_DVR_TIME struStartTime;//�ļ��Ŀ�ʼʱ��
+            public NET_DVR_TIME struStopTime;//�ļ��Ľ���ʱ��
+            public uint dwFileSize;//�ļ��Ĵ�С
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 32)]
+            public string sCardNum;
+        }
+
+        //¼���ļ����������ṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FILECOND
+        {
+            public int lChannel;//ͨ����
+            public uint dwFileType;//¼���ļ�����0xff��ȫ����0����ʱ¼��,1-�ƶ���� ��2������������
+            //3-����|�ƶ���� 4-����&�ƶ���� 5-����� 6-�ֶ�¼��
+            public uint dwIsLocked;//�Ƿ����� 0-�����ļ�,1-�����ļ�, 0xff��ʾ�����ļ�
+            public uint dwUseCardNo;//�Ƿ�ʹ�ÿ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] sCardNumber;//����
+            public NET_DVR_TIME struStartTime;//��ʼʱ��
+            public NET_DVR_TIME struStopTime;//����ʱ��
+        }
+
+        //��̨����ѡ��Ŵ���С(HIK ����ר��)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_POINT_FRAME
+        {
+            public int xTop;//������ʼ���x����
+            public int yTop;//����������y����
+            public int xBottom;//����������x����
+            public int yBottom;//����������y����
+            public int bCounter;//����
+        }
+
+        //�����Խ�����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_COMPRESSION_AUDIO
+        {
+            public byte byAudioEncType;//��Ƶ�������� 0-G722; 1-G711
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 7, ArraySubType = UnmanagedType.I1)]
+            public byte[] byres;//���ﱣ����Ƶ��ѹ������ 
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_AUDIOENC_INFO
+        {
+            public uint in_frame_size;                /* ����һ֡���ݴ�С(BYTES)����GetInfoParam��������         */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.U4)]
+            public int[] reserved;                 /* ���� */
+        }
+
+        // ��Ƶ����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_AUDIOENC_PROCESS_PARAM
+        {
+            public IntPtr in_buf;                      /* ����buf */
+            public IntPtr out_buf;                     /* ���buf */
+            public uint out_frame_size;               /* ����һ֡���BYTE�� */
+            public int g726enc_reset;                /* ���ÿ��� */
+            public int g711_type;                    /* g711��������,0 - U law, 1- A law */
+            public int enc_mode;                     /* ��Ƶ����ģʽ��AMR�������� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.U4)]
+            public int[] reserved;                 /* ���� */
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_AP_INFO
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = IW_ESSID_MAX_SIZE)]
+            public string sSsid;
+            public uint dwMode;/* 0 mange ģʽ;1 ad-hocģʽ���μ�NICMODE */
+            public uint dwSecurity;  /*0 �����ܣ�1 wep���ܣ�2 wpa-psk;3 wpa-Enterprise���μ�WIFISECURITY*/
+            public uint dwChannel;/*1-11��ʾ11��ͨ��*/
+            public uint dwSignalStrength;/*0-100�ź���������Ϊ��ǿ*/
+            public uint dwSpeed;/*����,���0.01mbps*/
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_AP_INFO_LIST
+        {
+            public uint dwSize;
+            public uint dwCount;/*����AP������������20*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = WIFI_MAX_AP_COUNT, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_AP_INFO[] struApInfo;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_WIFIETHERNET
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sIpAddress;/*IP��ַ*/
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sIpMask;/*����*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MACADDR_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byMACAddr;/*������ַ��ֻ������ʾ*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] bRes;
+            public uint dwEnableDhcp;/*�Ƿ�����dhcp  0������ 1����*/
+            public uint dwAutoDns;/*�������dhcp�Ƿ��Զ���ȡdns,0���Զ���ȡ 1�Զ���ȡ�����������������dhcpĿǰ�Զ���ȡdns*/
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sFirstDns; /*��һ��dns����*/
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sSecondDns;/*�ڶ���dns����*/
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sGatewayIpAddr;/* ���ص�ַ*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] bRes2;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct UNION_EAP_TTLS
+        {
+            public byte byEapolVersion; //EAPOL�汾��0-�汾1��1-�汾2
+            public byte byAuthType; //�ڲ���֤��ʽ��0-PAP��1-MSCHAPV2
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAnonyIdentity; //��������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byUserName; //�û���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byPassword; //����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 44, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        } //WPA-enterprise/WPA2-enterprisģʽ����
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct UNION_EAP_PEAP
+        {
+            public byte byEapolVersion; //EAPOL�汾��0-�汾1��1-�汾2
+            public byte byAuthType; //�ڲ���֤��ʽ��0-GTC��1-MD5��2-MSCHAPV2
+            public byte byPeapVersion; //PEAP�汾��0-�汾0��1-�汾1
+            public byte byPeapLabel; //PEAP��ǩ��0-�ϱ�ǩ��1-�±�ǩ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAnonyIdentity; //��������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byUserName; //�û���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byPassword; //����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 44, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        } //WPA-enterprise/WPA2-enterprisģʽ����
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct UNION_EAP_TLS
+        {
+            public byte byEapolVersion; //EAPOL�汾��0-�汾1��1-�汾2
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byIdentity; //����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byPrivateKeyPswd; //˽Կ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 76, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Explicit)]
+        public struct WIFI_AUTH_PARAM
+        {
+            [FieldOffsetAttribute(0)]
+            public UNION_EAP_TTLS EAP_TTLS;//WPA-enterprise/WPA2-enterprisģʽ����
+			
+            [FieldOffsetAttribute(0)]
+            public UNION_EAP_PEAP EAP_PEAP; //WPA-enterprise/WPA2-enterprisģʽ����
+
+			[FieldOffsetAttribute(0)]
+            public UNION_EAP_TLS EAP_TLS; 
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct UNION_WEP
+        {
+            public uint dwAuthentication;/*0 -����ʽ 1-����ʽ*/
+            public uint dwKeyLength;/* 0 -64λ��1- 128λ��2-152λ*/
+            public uint dwKeyType;/*0 16����;1 ASCI */
+            public uint dwActive;/*0 ������0---3��ʾ����һ����Կ*/
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = WIFI_WEP_MAX_KEY_COUNT * WIFI_WEP_MAX_KEY_LENGTH)]
+            public string sKeyInfo;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct UNION_WPA_PSK
+        {
+            public uint dwKeyLength;/*8-63��ASCII�ַ�*/
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = WIFI_WPA_PSK_MAX_KEY_LENGTH)]
+            public string sKeyInfo;
+            public byte byEncryptType;/*WPA/WPA2ģʽ�¼�������,0-AES, 1-TKIP*/
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct UNION_WPA_WPA2
+        {
+            public byte byEncryptType;  /*��������,0-AES, 1-TKIP*/
+            public byte byAuthType; //��֤���ͣ�0-EAP_TTLS,1-EAP_PEAP,2-EAP_TLS
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public WIFI_AUTH_PARAM auth_param;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_WIFI_CFG_EX
+        {
+            public NET_DVR_WIFIETHERNET struEtherNet;/*wifi����*/
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = IW_ESSID_MAX_SIZE)]
+            public string sEssid;/*SSID*/
+            public uint dwMode;/* 0 mange ģʽ;1 ad-hocģʽ���μ�*/
+            public uint dwSecurity;/*0 �����ܣ�1 wep���ܣ�2 wpa-psk; */
+            [StructLayoutAttribute(LayoutKind.Explicit)]
+            public struct key
+            {
+                [FieldOffsetAttribute(0)]
+                public UNION_WEP wep;
+
+                [FieldOffsetAttribute(0)]
+                public UNION_WPA_PSK wpa_psk;
+
+                [FieldOffsetAttribute(0)]
+                public UNION_WPA_WPA2 wpa_wpa2;//WPA-enterprise/WPA2-enterprisģʽ����
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_WIFI_CFG
+        {
+            public uint dwSize;
+            public NET_DVR_WIFI_CFG_EX struWifiCfg;
+        }
+
+        //wifi����״̬
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_WIFI_CONNECT_STATUS
+        {
+            public uint dwSize;
+            public byte byCurStatus;	//1-�����ӣ�2-δ���ӣ�3-��������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;		//����
+            public uint dwErrorCode;	// byCurStatus = 2ʱ��Ч,1-�û������������,2-�޴�·����,3-δ֪����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 244, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_WIFI_WORKMODE
+        {
+            public uint dwSize;
+            public uint dwNetworkInterfaceMode;/*0 �Զ��л�ģʽ��1 ����ģʽ*/
+        }
+
+        //���ܿ�����Ϣ
+        public const int MAX_VCA_CHAN = 16;//�������ͨ����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_CTRLINFO
+        {
+            public byte byVCAEnable;//�Ƿ�������
+            public byte byVCAType;//�����������ͣ�VCA_CHAN_ABILITY_TYPE 
+            public byte byStreamWithVCA;//�������Ƿ��������Ϣ
+            public byte byMode;//ģʽ��VCA_CHAN_MODE_TYPE ,atm������ʱ����Ҫ����
+            public byte byControlType;   //�������ͣ���λ��ʾ��0-��1-��
+            // byControlType &1 �Ƿ�����ץ�Ĺ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;//����������Ϊ0 
+        }
+
+        //���ܿ�����Ϣ�ṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_CTRLCFG
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_VCA_CHAN, ArraySubType = UnmanagedType.Struct)]
+            public NET_VCA_CTRLINFO[] struCtrlInfo;//������Ϣ,����0��Ӧ�豸����ʼͨ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //�����豸������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_DEV_ABILITY
+        {
+            public uint dwSize;//�ṹ����
+            public byte byVCAChanNum;//����ͨ������
+            public byte byPlateChanNum;//����ͨ������
+            public byte byBBaseChanNum;//�����������
+            public byte byBAdvanceChanNum;//��Ϊ�߼������
+            public byte byBFullChanNum;//�����������
+            public byte byATMChanNum;//����ATM����
+            public byte byPDCChanNum;         //����ͳ��ͨ������
+            public byte byITSChanNum;         //��ͨ�¼�ͨ������
+            public byte byBPrisonChanNum;     //��Ϊ������(����)ͨ������
+            public byte byFSnapChanNum;       //����ץ��ͨ������
+            public byte byFSnapRecogChanNum;  //����ץ�ĺ�ʶ��ͨ������
+            public byte byFRetrievalChanNum;  //�������������
+            public byte bySupport;            //������λ����Ϊ0��ʾ��֧�֣�1��ʾ֧��
+            //bySupport & 0x1����ʾ�Ƿ�֧������ 2012-3-22
+            //bySupport & 0x2����ʾ�Ƿ�֧��128·ȡ����չ2012-12-27
+            public byte byFRecogChanNum;      //����ʶ��ͨ������
+            public byte byBPPerimeterChanNum; //��Ϊ������(�ܽ�)ͨ������
+            public byte byTPSChanNum;         //��ͨ�յ�ͨ������
+            public byte byTFSChanNum;         //��·Υ��ȡ֤ͨ������
+            public byte byFSnapBFullChanNum;  //����ץ�ĺ��쳣��Ϊʶ��ͨ������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 22, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //�쳣��Ϊʶ����������
+        public enum VCA_ABILITY_TYPE:uint
+        {
+            TRAVERSE_PLANE_ABILITY = 0x01,       //��Խ������
+            ENTER_AREA_ABILITY = 0x02,       //��������
+            EXIT_AREA_ABILITY = 0x04,       //�뿪����
+            INTRUSION_ABILITY = 0x08,       //����
+            LOITER_ABILITY = 0x10,       //�ǻ�
+            LEFT_TAKE_ABILITY = 0x20,       //��Ʒ������ȡ
+            PARKING_ABILITY = 0x40,       //ͣ��
+            RUN_ABILITY = 0x80,       //�����ƶ�
+            HIGH_DENSITY_ABILITY = 0x100,      //��Ա�ۼ�
+            LF_TRACK_ABILITY = 0x200,      //���
+            VIOLENT_MOTION_ABILITY = 0x400,      //�����˶����
+            REACH_HIGHT_ABILITY = 0x800,      //�ʸ߼��
+            GET_UP_ABILITY = 0x1000,     //�������
+            LEFT_ABILITY = 0x2000,     //��Ʒ����
+            TAKE_ABILITY = 0x4000,     //��Ʒ��ȡ
+            LEAVE_POSITION = 0x8000,     //��ΣĿ���λ���-���
+            TRAIL_ABILITY = 0x10000,    //� 
+            KEY_PERSON_GET_UP_ABILITY = 0x20000,    //�ص�Ŀ���������
+            FALL_DOWN_ABILITY = 0x80000,    //����
+            AUDIO_ABNORMAL_ABILITY = 0x100000,   //��ǿͻ��
+            ADV_REACH_HEIGHT_ABILITY = 0x200000,   //�����ʸ�
+            TOILET_TARRY_ABILITY = 0x400000,   //Ŀ������������ʱ
+            YARD_TARRY_ABILITY = 0x800000,   //�ŷ糡����
+            ADV_TRAVERSE_PLANE_ABILITY = 0x1000000,  //���߾�����
+            HUMAN_ENTER_ABILITY = 0x10000000, //�˿���ATM ,ֻ��ATM_PANELģʽ��֧��
+            OVER_TIME_ABILITY = 0x20000000, //������ʱ,ֻ��ATM_PANELģʽ��֧��
+            STICK_UP_ABILITY = 0x40000000, //��ֽ��
+            INSTALL_SCANNER_ABILITY = 0x80000000  //��װ������
+        }
+
+        //����ͨ������
+        public enum VCA_CHAN_ABILITY_TYPE
+        {
+            VCA_BEHAVIOR_BASE = 1,          //�쳣��Ϊʶ�������
+            VCA_BEHAVIOR_ADVANCE = 2,          //�쳣��Ϊʶ��߼���
+            VCA_BEHAVIOR_FULL = 3,          //�쳣��Ϊʶ��������
+            VCA_PLATE = 4,          //��������
+            VCA_ATM = 5,          //ATM����
+            VCA_PDC = 6,          //������ͳ��
+            VCA_ITS = 7,          //���� ��ͨ�¼�
+            VCA_BEHAVIOR_PRISON = 8,          //�쳣��Ϊʶ�������(����) 
+            VCA_FACE_SNAP = 9,           //����ץ������
+            VCA_FACE_SNAPRECOG = 10,          //����ץ�ĺ�ʶ������
+            VCA_FACE_RETRIEVAL = 11,          //�������������
+            VCA_FACE_RECOG = 12,          //����ʶ������
+            VCA_BEHAVIOR_PRISON_PERIMETER = 13, // �쳣��Ϊʶ������� (�ܽ�)
+            VCA_TPS = 14,          //��ͨ�յ�
+            VCA_TFS = 15,          //��·Υ��ȡ֤
+            VCA_BEHAVIOR_FACESNAP = 16           //����ץ�ĺ��쳣��Ϊʶ������
+        }
+
+        //����ATMģʽ����(ATM��������)
+        public enum VCA_CHAN_MODE_TYPE
+        {
+            VCA_ATM_PANEL = 0,//ATM���
+            VCA_ATM_SURROUND = 1,//ATM����
+            VCA_ATM_FACE = 2	//ATM����
+        }
+        public enum TFS_CHAN_MODE_TYPE
+        {
+            TFS_CITYROAD = 0,  //TFS ����
+            TFS_FREEWAY = 1   //TFS ���ٵ�·
+        }
+
+        //�쳣��Ϊʶ�𳡾�ģʽ
+        public enum BEHAVIOR_SCENE_MODE_TYPE
+        {
+            BEHAVIOR_SCENE_DEFAULT = 0, //ϵͳĬ��
+            BEHAVIOR_SCENE_WALL = 1,    //Χǽ
+            BEHAVIOR_SCENE_INDOOR = 2   //����
+        }
+
+        //ͨ�������������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_CHAN_IN_PARAM
+        {
+            public byte byVCAType;//VCA_CHAN_ABILITY_TYPEö��ֵ
+            public byte byMode;//ģʽ��VCA_CHAN_MODE_TYPE ,atm������ʱ����Ҫ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;//����������Ϊ0 
+        }
+
+        //��Ϊ�������ṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_BEHAVIOR_ABILITY
+        {
+            public uint dwSize;//�ṹ����
+            public uint dwAbilityType;//֧�ֵ��������ͣ���λ��ʾ����VCA_ABILITY_TYPE����
+            public byte byMaxRuleNum;//��������
+            public byte byMaxTargetNum;//���Ŀ����
+            public byte bySupport;		// ֧�ֵĹ�������   ��λ��ʾ  
+            // bySupport & 0x01 ֧�ֱ궨����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 9, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; //����������Ϊ0
+        }
+
+        // ��ͨ�������ṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ITS_ABILITY
+        {
+            public uint dwSize;             // �ṹ���С
+            public uint dwAbilityType;      // ֧�ֵ������б�  ����ITS_ABILITY_TYPE
+            public byte byMaxRuleNum;	 	//��������
+            public byte byMaxTargetNum; 	//���Ŀ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 10, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;		    // ����
+        }
+        /***********************************end*******************************************/
+
+        /************************************���ܲ����ṹ*********************************/
+        //���ܹ��ýṹ
+        //����ֵ��һ��,������ֵΪ��ǰ����İٷֱȴ�С, ����ΪС�������λ
+        //������ṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_POINT
+        {
+            public float fX;// X������, 0.001~1
+            public float fY;//Y������, 0.001~1
+        }
+
+        //�����ṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_RECT
+        {
+            public float fX;//�߽�����Ͻǵ��X������, 0.001~1
+            public float fY;//�߽�����Ͻǵ��Y������, 0.001~1
+            public float fWidth;//�߽��Ŀ���, 0.001~1
+            public float fHeight;//�߽��ĸ߶�, 0.001~1
+        }
+
+        //�쳣��Ϊʶ���¼�����
+        public enum VCA_EVENT_TYPE : uint
+        {
+            VCA_TRAVERSE_PLANE = 0x1,        //��Խ������
+            VCA_ENTER_AREA = 0x2,        //Ŀ���������,֧���������
+            VCA_EXIT_AREA = 0x4,        //Ŀ���뿪����,֧���������
+            VCA_INTRUSION = 0x8,        //�ܽ�����,֧���������
+            VCA_LOITER = 0x10,       //�ǻ�,֧���������
+            VCA_LEFT_TAKE = 0x20,       //��Ʒ������ȡ,֧���������
+            VCA_PARKING = 0x40,       //ͣ��,֧���������
+            VCA_RUN = 0x80,       //�����ƶ�,֧���������
+            VCA_HIGH_DENSITY = 0x100,      //��������Ա�ۼ�,֧���������
+            VCA_VIOLENT_MOTION = 0x200,		 //�����˶����
+            VCA_REACH_HIGHT = 0x400,		 //�ʸ߼��
+            VCA_GET_UP = 0x800,	     //�������
+            VCA_LEFT = 0x1000,     //��Ʒ����
+            VCA_TAKE = 0x2000,     //��Ʒ��ȡ
+            VCA_LEAVE_POSITION = 0x4000,     //��ΣĿ���λ���-���
+            VCA_TRAIL = 0x8000,     //�
+            VCA_KEY_PERSON_GET_UP = 0x10000,    //�ص�Ŀ���������
+            VCA_FALL_DOWN = 0x80000,    //���ؼ��
+            VCA_AUDIO_ABNORMAL = 0x100000,   //��ǿͻ����
+            VCA_ADV_REACH_HEIGHT = 0x200000,   //�����ʸ�
+            VCA_TOILET_TARRY = 0x400000,   //Ŀ������������ʱ
+            VCA_YARD_TARRY = 0x800000,   //�ŷ糡����
+            VCA_ADV_TRAVERSE_PLANE = 0x1000000,  //���߾�����
+            VCA_HUMAN_ENTER = 0x10000000, //�˿���ATM           ֻ��ATM_PANELģʽ��֧��
+            VCA_OVER_TIME = 0x20000000, //������ʱ            ֻ��ATM_PANELģʽ��֧��
+            VCA_STICK_UP = 0x40000000, //��ֽ��,֧���������
+            VCA_INSTALL_SCANNER = 0x80000000  //��װ������,֧���������
+        }
+
+        //�쳣��Ϊʶ���¼�������չ
+        public enum VCA_RULE_EVENT_TYPE_EX : ushort
+        {
+            ENUM_VCA_EVENT_TRAVERSE_PLANE = 1,   //��Խ������
+            ENUM_VCA_EVENT_ENTER_AREA = 2,   //Ŀ���������,֧���������
+            ENUM_VCA_EVENT_EXIT_AREA = 3,   //Ŀ���뿪����,֧���������
+            ENUM_VCA_EVENT_INTRUSION = 4,   //�ܽ�����,֧���������
+            ENUM_VCA_EVENT_LOITER = 5,   //�ǻ�,֧���������
+            ENUM_VCA_EVENT_LEFT_TAKE = 6,   //��Ʒ������ȡ,֧���������
+            ENUM_VCA_EVENT_PARKING = 7,   //ͣ��,֧���������
+            ENUM_VCA_EVENT_RUN = 8,   //�����ƶ�,֧���������
+            ENUM_VCA_EVENT_HIGH_DENSITY = 9,   //��������Ա�ۼ�,֧���������
+            ENUM_VCA_EVENT_VIOLENT_MOTION = 10,  //�����˶����
+            ENUM_VCA_EVENT_REACH_HIGHT = 11,  //�ʸ߼��
+            ENUM_VCA_EVENT_GET_UP = 12,  //�������
+            ENUM_VCA_EVENT_LEFT = 13,  //��Ʒ����
+            ENUM_VCA_EVENT_TAKE = 14,  //��Ʒ��ȡ
+            ENUM_VCA_EVENT_LEAVE_POSITION = 15,  //��ΣĿ���λ���-���
+            ENUM_VCA_EVENT_TRAIL = 16,  //�
+            ENUM_VCA_EVENT_KEY_PERSON_GET_UP = 17,  //�ص�Ŀ���������
+            ENUM_VCA_EVENT_FALL_DOWN = 20,  //���ؼ��
+            ENUM_VCA_EVENT_AUDIO_ABNORMAL = 21,  //��ǿͻ����
+            ENUM_VCA_EVENT_ADV_REACH_HEIGHT = 22,  //�����ʸ�
+            ENUM_VCA_EVENT_TOILET_TARRY = 23,  //Ŀ������������ʱ
+            ENUM_VCA_EVENT_YARD_TARRY = 24,  //�ŷ糡����
+            ENUM_VCA_EVENT_ADV_TRAVERSE_PLANE = 25,  //���߾�����
+            ENUM_VCA_EVENT_HUMAN_ENTER = 29,  //�˿���ATM,ֻ��ATM_PANELģʽ��֧��   
+            ENUM_VCA_EVENT_OVER_TIME = 30,  //������ʱ,ֻ��ATM_PANELģʽ��֧��
+            ENUM_VCA_EVENT_STICK_UP = 31,  //��ֽ��,֧���������
+            ENUM_VCA_EVENT_INSTALL_SCANNER = 32   //��װ������,֧���������
+        }
+
+        //�����洩Խ��������
+        public enum VCA_CROSS_DIRECTION
+        {
+            VCA_BOTH_DIRECTION,// ˫�� 
+            VCA_LEFT_GO_RIGHT,// �������� 
+            VCA_RIGHT_GO_LEFT,// �������� 
+        }
+
+        //�߽ṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_LINE
+        {
+            public NET_VCA_POINT struStart;//��� 
+            public NET_VCA_POINT struEnd; //�յ�
+
+            //             public void init()
+            //             {
+            //                 struStart = new NET_VCA_POINT();
+            //                 struEnd = new NET_VCA_POINT();
+            //             }
+        }
+
+        //�ýṹ�ᵼ��xaml�������������������������������������ʱ��û���ҵ�  
+        //��ʱ���νṹ��
+        //����ͽṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_POLYGON
+        {
+            /// DWORD->unsigned int
+            public uint dwPointNum;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = VCA_MAX_POLYGON_POINT_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_VCA_POINT[] struPos;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_TRAVERSE_PLANE
+        {
+            public NET_VCA_LINE struPlaneBottom;//������ױ�
+            public uint dwCrossDirection;//��Խ����: 0-˫��1-�����ң�2-���ҵ���
+            public byte bySensitivity;//�����ȣ�ȡֵ��Χ��[1,5] ������Smart IPC��ȡֵ��ΧΪ[1,100]�� 
+            public byte byPlaneHeight;//������߶�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 38, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+
+            //             public void init()
+            //             {
+            //                 struPlaneBottom = new NET_VCA_LINE();
+            //                 struPlaneBottom.init();
+            //                 byRes2 = new byte[38];
+            //             }
+        }
+
+        //����/�뿪�������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_AREA
+        {
+            public NET_VCA_POLYGON struRegion;//����Χ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //���ݱ����ӳ�ʱ������ʶ�����д�ͼƬ�����������IO����һ�£�1�뷢��һ����
+        //���ֲ���
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_INTRUSION
+        {
+            public NET_VCA_POLYGON struRegion;//����Χ
+            public ushort wDuration;//�����ӳ�ʱ��: 1-120�룬����5�룬�ж�����Ч������ʱ��
+            public byte bySensitivity;        //�����Ȳ�������Χ[1-100]
+            public byte byRate;               //ռ�ȣ�����������δ����Ŀ��ߴ�Ŀ��ռ��������ı��أ���һ��Ϊ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //�ǻ�����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_LOITER
+        {
+            public NET_VCA_POLYGON struRegion;//����Χ
+            public ushort wDuration;//�����ǻ������ij���ʱ�䣺1-120�룬����10��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 6, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //����/�������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_TAKE_LEFT
+        {
+            public NET_VCA_POLYGON struRegion;//����Χ
+            public ushort wDuration;//��������/��������ij���ʱ�䣺1-120�룬����10��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 6, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //ͣ������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_PARKING
+        {
+            public NET_VCA_POLYGON struRegion;//����Χ
+            public ushort wDuration;//����ͣ����������ʱ�䣺1-120�룬����10��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 6, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //���ܲ���
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_RUN
+        {
+            public NET_VCA_POLYGON struRegion;//����Χ
+            public float fRunDistance;//�˱���������, ��Χ: [0.1, 1.00]
+            public byte byRes1;             // �����ֽ�
+            public byte byMode;             // 0 ����ģʽ  1 ʵ��ģʽ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //��Ա�ۼ�����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_HIGH_DENSITY
+        {
+            public NET_VCA_POLYGON struRegion;//����Χ
+            public float fDensity;//�ܶȱ���, ��Χ: [0.1, 1.0]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public ushort wDuration;      // ������Ա�ۼ�����������ֵ 20-360s
+        }
+
+        //�����˶�����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_VIOLENT_MOTION
+        {
+            public NET_VCA_POLYGON struRegion;//����Χ
+            public ushort wDuration;           //���������˶�������ֵ��1-50��
+            public byte bySensitivity;       //�����Ȳ�������Χ[1,5]
+            public byte byMode;              //0-����Ƶģʽ��1-����Ƶ����ģʽ��2-����Ƶģʽ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;            //����
+        }
+
+        //�ʸ߲���
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_REACH_HIGHT
+        {
+            public NET_VCA_LINE struVcaLine;   //�ʸ߾�����
+            public ushort wDuration; //�����ʸ߱�����ֵ��1-120��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 6, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;           // �����ֽ�
+        }
+
+        //�𴲲���
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_GET_UP
+        {
+            public NET_VCA_POLYGON struRegion; //����Χ
+            public ushort wDuration;	        //�����𴲱�����ֵ1-100 ��
+            public byte byMode;             //�������ģʽ,0-��ͨ��ģʽ,1-�ߵ���ģʽ,2-��ͨ����������ģʽ
+            public byte bySensitivity;      //�����Ȳ�������Χ[1,10]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;		    //�����ֽ�
+        }
+
+        //��Ʒ����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_LEFT
+        {
+            public NET_VCA_POLYGON struRegion; // ����Χ
+            public ushort wDuration;       // ������Ʒ����������ֵ 10-100��
+            public byte bySensitivity;   // �����Ȳ�������Χ[1,5] 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 5, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;        // �����ֽ�
+        }
+
+        // ��Ʒ��ȡ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_TAKE
+        {
+            public NET_VCA_POLYGON struRegion;     // ����Χ
+            public ushort wDuration;      // ������Ʒ��ȡ������ֵ10-100��
+            public byte bySensitivity;  // �����Ȳ�������Χ[1,5] 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 5, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;       // �����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_OVER_TIME
+        {
+            public NET_VCA_POLYGON struRegion;    // ����Χ
+            public ushort wDuration;  // ��������ʱ����ֵ 4s-60000s
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 6, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;   // �����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_HUMAN_ENTER
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 23, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwRes;			//�����ֽ�
+        }
+
+        //��ֽ������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_STICK_UP
+        {
+            public NET_VCA_POLYGON struRegion;//����Χ
+            public ushort wDuration;//��������ʱ�䣺10-60�룬����10��
+            public byte bySensitivity;//�����Ȳ�������Χ[1,5]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 5, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //����������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_SCANNER
+        {
+            public NET_VCA_POLYGON struRegion;//����Χ
+            public ushort wDuration;//��������ʱ�䣺10-60��
+            public byte bySensitivity;//�����Ȳ�������Χ[1,5]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 5, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //��ΣĿ���λ���-����¼�
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_LEAVE_POSITION
+        {
+            public NET_VCA_POLYGON struRegion; //����Χ
+            public ushort wLeaveDelay;  //���˱���ʱ�䣬��λ��s��ȡֵ1-1800
+            public ushort wStaticDelay; //˯������ʱ�䣬��λ��s��ȡֵ1-1800
+            public byte byMode;       //ģʽ��0-��ΣĿ���λ���-����¼���1-��ΣĿ���λ���-˯���¼���2-��ΣĿ���λ���-���˯���¼�
+            public byte byPersonType; //ֵ���������ͣ�0-����ֵ�ڣ�1-˫��ֵ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;     //����
+        }
+
+        //����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_TRAIL
+        {
+            public NET_VCA_POLYGON struRegion;//����Χ
+            public ushort wRes;      /* ���� */
+            public byte bySensitivity;       /* �����Ȳ�������Χ[1,5] */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 5, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //���ز���
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_FALL_DOWN
+        {
+            public NET_VCA_POLYGON struRegion;//����Χ
+            public ushort wDuration;      /* �����¼���ֵ 1-60s*/
+            public byte bySensitivity;       /* �����Ȳ�������Χ[1,5] */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 5, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //��ǿͻ�����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_AUDIO_ABNORMAL
+        {
+            public ushort wDecibel;       //����ǿ��
+            public byte bySensitivity;  //�����Ȳ�������Χ[1,5] 
+            public byte byAudioMode;    //�������ģʽ��0-�����ȼ�⣬1-�ֱ���ֵ��⣬2-��������ֱ���ֵ��� 
+            public byte byEnable;       //ʹ�ܣ��Ƿ���
+            public byte byThreshold;    //������ֵ[0,100]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 54, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;      //����   
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_AUDIO_EXCEPTION
+        {
+            public uint dwSize;
+            public byte byEnableAudioInException;  //ʹ�ܣ��Ƿ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_VCA_AUDIO_ABNORMAL struAudioAbnormal;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[] struAlarmSched; //����ʱ��
+            public NET_DVR_HANDLEEXCEPTION_V40 struHandleException;  //�쳣������ʽ
+            public uint dwMaxRelRecordChanNum;  //����������¼��ͨ�� ����ֻ�������֧������
+            public uint dwRelRecordChanNum;     //����������¼��ͨ�� �� ʵ��֧�ֵ�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.U4)]
+            public uint[] byRelRecordChan;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_TOILET_TARRY
+        {
+            public NET_VCA_POLYGON struRegion;//����Χ
+            public ushort wDelay;        //Ŀ������������ʱʱ��[1,3600]����λ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 6, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_YARD_TARRY
+        {
+            public NET_VCA_POLYGON struRegion;//����Χ
+            public ushort wDelay;        //�ŷ糡����ʱ��[1,120]����λ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 6, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_ADV_REACH_HEIGHT
+        {
+            public NET_VCA_POLYGON struRegion; //�ʸ�����
+            public uint dwCrossDirection;   //��Խ����(���VCA_CROSS_DIRECTION): 0-˫��1-������2-���ҵ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;		    // �����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_ADV_TRAVERSE_PLANE
+        {
+            public NET_VCA_POLYGON struRegion; //����������
+            public uint dwCrossDirection;   //��Խ����(���VCA_CROSS_DIRECTION): 0-˫��1-������2-���ҵ���
+            public byte bySensitivity;      //�����Ȳ�������Χ[1,5] 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;		    //�����ֽ�
+        }
+
+        //�����¼�����
+        [StructLayoutAttribute(LayoutKind.Explicit)]
+        public struct NET_VCA_EVENT_UNION
+        {
+            [FieldOffsetAttribute(0)]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 23, ArraySubType = UnmanagedType.U4)]
+            public uint[] uLen;//����
+
+            //[FieldOffsetAttribute(0)]
+            //public NET_VCA_TRAVERSE_PLANE struTraversePlane;//��Խ��������� 
+            //[FieldOffsetAttribute(0)]
+            //public NET_VCA_AREA struArea;//����/�뿪�������
+            //[FieldOffsetAttribute(0)]
+            //public NET_VCA_INTRUSION struIntrusion;//���ֲ���
+            //[FieldOffsetAttribute(0)]
+            //public NET_VCA_LOITER struLoiter;//�ǻ�����
+            //[FieldOffsetAttribute(0)]
+            //public NET_VCA_TAKE_LEFT struTakeTeft;//����/�������
+            //[FieldOffsetAttribute(0)]
+            //public NET_VCA_PARKING struParking;//ͣ������
+            //[FieldOffsetAttribute(0)]
+            //public NET_VCA_RUN struRun;//���ܲ���
+            //[FieldOffsetAttribute(0)]
+            //public NET_VCA_HIGH_DENSITY struHighDensity;//��Ա�ۼ�����  
+            //[FieldOffsetAttribute(0)]
+            //public NET_VCA_VIOLENT_MOTION struViolentMotion;	//�����˶�
+            //[FieldOffsetAttribute(0)]
+            //public NET_VCA_REACH_HIGHT struReachHight;      //�ʸ�
+            //[FieldOffsetAttribute(0)]
+            //public NET_VCA_GET_UP struGetUp;           //��
+            //[FieldOffsetAttribute(0)]
+            //public NET_VCA_LEFT struLeft;            //��Ʒ����
+            //[FieldOffsetAttribute(0)]
+            //public NET_VCA_TAKE struTake;            // ��Ʒ��ȡ
+            //[FieldOffsetAttribute(0)]
+            //public NET_VCA_HUMAN_ENTER struHumanEnter;      //��Ա����
+            //[FieldOffsetAttribute(0)]
+            //public NET_VCA_OVER_TIME struOvertime;        //������ʱ
+            //[FieldOffsetAttribute(0)]
+            //public NET_VCA_STICK_UP struStickUp;//��ֽ��
+            //[FieldOffsetAttribute(0)]
+            //public NET_VCA_SCANNER struScanner;//����������
+            //[FieldOffsetAttribute(0)]
+            //public NET_VCA_LEAVE_POSITION struLeavePos;        //��ΣĿ���λ���-��ڲ���
+            //[FieldOffsetAttribute(0)]
+            //public NET_VCA_TRAIL struTrail;           //����
+            //[FieldOffsetAttribute(0)]
+            //public NET_VCA_FALL_DOWN struFallDown;        //���ز���
+            //[FieldOffsetAttribute(0)]
+            //public NET_VCA_AUDIO_ABNORMAL struAudioAbnormal;   //��ǿͻ��
+            //[FieldOffsetAttribute(0)]
+            //public NET_VCA_ADV_REACH_HEIGHT struReachHeight;     //�����ʸ߲���
+            //[FieldOffsetAttribute(0)]
+            //public NET_VCA_TOILET_TARRY struToiletTarry;     //Ŀ������������ʱ����
+            //[FieldOffsetAttribute(0)]
+            //public NET_VCA_YARD_TARRY struYardTarry;       //�ŷ糡��������
+            //[FieldOffsetAttribute(0)]
+            //public NET_VCA_ADV_TRAVERSE_PLANE struAdvTraversePlane;//���߾��������            
+        }
+
+        // �ߴ����������
+        public enum SIZE_FILTER_MODE
+        {
+            IMAGE_PIX_MODE,//�������ش�С����
+            REAL_WORLD_MODE,//����ʵ�ʴ�С����
+            DEFAULT_MODE 	// Ĭ��ģʽ
+        }
+
+        //�ߴ������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_SIZE_FILTER
+        {
+            public byte byActive;//�Ƿ񼤻�ߴ������ 0-�� ��0-��
+            public byte byMode;//������ģʽSIZE_FILTER_MODE
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;//��������0
+            public NET_VCA_RECT struMiniRect;//��СĿ���,ȫ0��ʾ������
+            public NET_VCA_RECT struMaxRect;//���Ŀ���,ȫ0��ʾ������
+        }
+
+        //�������ṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_ONE_RULE
+        {
+            public byte byActive;//�Ƿ񼤻����,0-��,��0-��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 7, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;//����������Ϊ0�ֶ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRuleName;//��������
+            public VCA_EVENT_TYPE dwEventType;//�쳣��Ϊʶ���¼�����
+            public NET_VCA_EVENT_UNION uEventParam;//�쳣��Ϊʶ���¼�����
+            public NET_VCA_SIZE_FILTER struSizeFilter;//�ߴ������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT_2, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[] struAlarmTime;//����ʱ��
+            public NET_DVR_HANDLEEXCEPTION_V30 struHandleType;//������ʽ 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRelRecordChan;//����������¼��ͨ��,Ϊ1��ʾ������ͨ��
+        }
+
+        //�쳣��Ϊʶ�����ýṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_RULECFG
+        {
+            public uint dwSize;//�ṹ����
+            public byte byPicProType;//����ʱͼƬ������ʽ 0-������ ��0-�ϴ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public NET_DVR_JPEGPARA struPictureParam;//ͼƬ���ṹ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_RULE_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_VCA_ONE_RULE[] struRule;//��������
+        }
+
+        //�ߴ���˲���
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_FILTER_STRATEGY
+        {
+            public byte byStrategy;      //�ߴ���˲��� 0 - ������ 1-�߶ȺͿ��ȹ���,2-�������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 11, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;       //����
+        }
+
+        //���򴥷�����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_RULE_TRIGGER_PARAM
+        {
+            public byte byTriggerMode;   //����Ĵ�����ʽ��0- �����ã�1- �� 2- Ŀ����� 
+            public byte byTriggerPoint;  //�����㣬������ʽΪ��ʱ��Ч 0- ��,1-��,2-��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;       //����
+            public float fTriggerArea;    //����Ŀ������ٷֱ� [0,100]��������ʽΪĿ�����ʱ��Ч
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;       //����
+        }
+
+        //�������ṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_ONE_RULE_V41
+        {
+            public byte byActive; //�Ƿ񼤻����,0-��,��0-��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 5, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;  //����������Ϊ0�ֶ�
+            public ushort wEventTypeEx; //��Ϊ�¼�������չ�����ڴ����ֶ�dwEventType���ο�VCA_RULE_EVENT_TYPE_EX
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRuleName; //��������
+            public uint dwEventType;	//��Ϊ�¼����ͣ�������Ϊ�˼��ݣ���������ʹ��wEventTypeEx��ȡ�¼�����
+            public NET_VCA_EVENT_UNION uEventParam; //�쳣��Ϊʶ���¼�����
+            public NET_VCA_SIZE_FILTER struSizeFilter;  //�ߴ������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[] struAlarmTime;//����ʱ��
+            public NET_DVR_HANDLEEXCEPTION_V30 struHandleType;	//������ʽ 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRelRecordChan; //����������¼��ͨ��,Ϊ1��ʾ������ͨ��
+            public ushort wAlarmDelay; //���ܱ�����ʱ��0-5s,1-10,2-30s,3-60s,4-120s,5-300s,6-600s
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2; //����
+            public NET_VCA_FILTER_STRATEGY struFilterStrategy; //�ߴ���˲���
+            public NET_VCA_RULE_TRIGGER_PARAM struTriggerParam;   //���򴥷�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //�쳣��Ϊʶ�����ýṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_RULECFG_V41
+        {
+            public uint dwSize;			//�ṹ����
+            public byte byPicProType;	//����ʱͼƬ������ʽ 0-������ ��0-�ϴ�
+            public byte byUpLastAlarm; //2011-04-06 �Ƿ����ϴ����һ�εı���
+            public byte byPicRecordEnable;  /*2012-3-1�Ƿ�����ͼƬ�洢, 0-������, 1-����*/
+            public byte byRes1;
+            public NET_DVR_JPEGPARA struPictureParam; 		//ͼƬ���ṹ	
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_RULE_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_VCA_ONE_RULE_V41[] struRule;  //��������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //��Ŀ��ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_TARGET_INFO
+        {
+            public uint dwID;//Ŀ��ID ,��Ա�ܶȹ��߱���ʱΪ0
+            public NET_VCA_RECT struRect; //Ŀ��߽�� 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;//����
+        }
+
+        //�򻯵Ĺ�����Ϣ, ��������Ļ�����Ϣ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_RULE_INFO
+        {
+            public byte byRuleID;//����ID,0-7
+            public byte byRes;//����
+            public ushort wEventTypeEx;   //��Ϊ�¼�������չ�����ڴ����ֶ�dwEventType���ο�VCA_RULE_EVENT_TYPE_EX
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRuleName;//��������
+            public VCA_EVENT_TYPE dwEventType;//�����¼�����
+            public NET_VCA_EVENT_UNION uEventParam;//�¼�����
+        }
+
+        //ǰ���豸��ַ��Ϣ�����ܷ����DZ�ʾ����ǰ���豸�ĵ�ַ��Ϣ�������豸��ʾ�����ĵ�ַ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_DEV_INFO
+        {
+            public NET_DVR_IPADDR struDevIP;//ǰ���豸��ַ��
+            public ushort wPort;//ǰ���豸�˿ںţ� 
+            public byte byChannel;//ǰ���豸ͨ����
+            public byte byIvmsChannel;// �����ֽ�
+        }
+
+        //�쳣��Ϊʶ�����ϱ��ṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_RULE_ALARM
+        {
+            public uint dwSize;//�ṹ����
+            public uint dwRelativeTime;//���ʱ��
+            public uint dwAbsTime;//����ʱ��
+            public NET_VCA_RULE_INFO struRuleInfo;//�¼�������Ϣ
+            public NET_VCA_TARGET_INFO struTargetInfo;//����Ŀ����Ϣ
+            public NET_VCA_DEV_INFO struDevInfo;//ǰ���豸��Ϣ
+            public uint dwPicDataLen;//����ͼƬ�ij��� Ϊ0��ʾû��ͼƬ������0��ʾ�ýṹ�������ͼƬ����*/
+            public byte byPicType; //0-��ͨͼƬ 1-�Ա�ͼƬ            
+            public byte byRelAlarmPicNum; //����ͨ������ͼƬ����
+            public byte bySmart;//IDS�豸����0(Ĭ��ֵ)��Smart Functiom Return 1
+            public byte byPicTransType;        //ͼƬ���ݴ��䷽ʽ: 0-�����ƣ�1-url
+            public uint dwAlarmID;     //����ID�����Ա�ʶͨ���������������ϱ�����0��ʾ��Ч
+            public ushort wDevInfoIvmsChannelEx;     //��NET_VCA_DEV_INFO���byIvmsChannel������ͬ���ܱ�ʾ�����ֵ���Ͽͻ�����byIvmsChannel�ܼ������ݣ��������255���¿ͻ��˰汾��ʹ��wDevInfoIvmsChannelEx��
+            public byte byRelativeTimeFlag;      //dwRelativeTime�ֶ��Ƿ���Ч  0-��Ч�� 1-��Ч��dwRelativeTime��ʾUTCʱ�� 
+            public byte byAppendInfoUploadEnabled; //������Ϣ�ϴ�ʹ�� 0-���ϴ� 1-�ϴ�
+            public IntPtr pAppendInfo;     //ָ�򸽼���ϢNET_VCA_APPEND_INFO��ָ�룬byAppendInfoUploadEnabledΪ1ʱ����byTimeDiffFlagΪ1ʱ��Ч
+            public IntPtr pImage;//ָ��ͼƬ��ָ��
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SYSTEM_TIME
+        {
+            public ushort wYear;           //��
+            public ushort wMonth;          //��
+            public ushort wDay;            //��
+            public ushort wHour;           //ʱ
+            public ushort wMinute;      //��
+            public ushort wSecond;      //��
+            public ushort wMilliSec;    //����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //�豸֧��AI����ƽ̨���룬�ϴ���Ƶ�������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_AIOP_VIDEO_HEAD
+        {
+            public uint dwSize;      //dwSize = sizeof(NET_AIOP_VIDEO_HEAD)
+            public uint dwChannel;    //�豸����ͨ����ͨ���ţ�
+            public NET_DVR_SYSTEM_TIME struTime; 	//ʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] szTaskID;     //��Ƶ����ID����������Ƶ�����ɷ�
+            public uint dwAIOPDataSize;   //��ӦAIOPDdata���ݳ���
+            public uint dwPictureSize;    //��Ӧ����ͼƬ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] szMPID;        //���ģ�Ͱ�ID������ƥ��AIOP�ļ�����ݽ���������ͨ��URI(GET /ISAPI/Intelligent/AIOpenPlatform/algorithmModel/management?format=json)��ȡ��ǰ�豸���ص�ģ�Ͱ���label description��Ϣ��
+            public IntPtr pBufferAIOPData;  //AIOPDdata����
+            public IntPtr pBufferPicture;//��Ӧ����ͼƬ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 184, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //�豸֧��AI����ƽ̨���룬�ϴ�ͼƬ�������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_AIOP_PICTURE_HEAD
+        {
+            public uint dwSize;           //dwSize = sizeof(NET_AIOP_PICTURE_HEAD)
+            public NET_DVR_SYSTEM_TIME struTime; 	//ʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] szPID;        //͸���·���ͼƬID��������ͼƬ�����ɷ�
+            public uint dwAIOPDataSize;   //��ӦAIOPDdata���ݳ���
+            public byte byStatus;         //״ֵ̬��0-�ɹ���1-ͼƬ��С����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] szMPID; //���ģ�Ͱ�ID������ƥ��AIOP�ļ�����ݽ�����
+            public IntPtr pBufferAIOPData;//AIOPDdata����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 184, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_AIOP_POLLING_VIDEO_HEAD
+        {
+            public uint dwSize;			//dwSize = sizeof(NET_AIOP_POLLING_VIDEO_HEAD)		
+            public uint dwChannel;      //�豸����ͨ����ͨ����(��SDKЭ��)��
+            public NET_DVR_SYSTEM_TIME     struTime; 	//ʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] szTaskID;    //��ѯץͼ����ID����������ѯץͼ�����ɷ�
+            public uint dwAIOPDataSize;	//��ӦAIOPDdata���ݳ���
+            public uint dwPictureSize;	//��Ӧ����ͼƬ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] szMPID; //���ģ�Ͱ�ID������ƥ��AIOP�ļ�����ݽ�����
+            public IntPtr pBufferAIOPData;//AIOPDdata����
+            public IntPtr pBufferPicture;//��Ӧ����ͼƬ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 184, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_AIOP_POLLING_SNAP_HEAD
+        {
+            public uint dwSize;			//dwSize = sizeof(NET_AIOP_POLLING_SNAP_HEAD)		
+            public uint dwChannel;      //�豸����ͨ����ͨ����(��SDKЭ��)��
+            public NET_DVR_SYSTEM_TIME struTime; 	//ʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] szTaskID;    //��ѯץͼ����ID����������ѯץͼ�����ɷ�
+            public uint dwAIOPDataSize;	//��ӦAIOPDdata���ݳ���
+            public uint dwPictureSize;	//��Ӧ����ͼƬ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] szMPID;       //���ģ�Ͱ�ID������ƥ��AIOP�ļ�����ݽ�����
+            public IntPtr pBufferAIOPData;//AIOPDdata����
+            public IntPtr pBufferPicture;//����ͼƬ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 184, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //�쳣��Ϊʶ�����DSP��Ϣ���ӽṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_DRAW_MODE
+        {
+            public uint dwSize;
+            public byte byDspAddTarget;//�����Ƿ����Ŀ��
+            public byte byDspAddRule;//�����Ƿ���ӹ���
+            public byte byDspPicAddTarget;//ץͼ�Ƿ����Ŀ��
+            public byte byDspPicAddRule;//ץͼ�Ƿ���ӹ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //��������
+        public enum OBJECT_TYPE_ENUM
+        {
+            ENUM_OBJECT_TYPE_COAT = 1  //����
+        }
+
+        //������ɫ�����ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_OBJECT_COLOR_COND
+        {
+            public uint dwChannel;   //ͨ����
+            public uint dwObjType;   //�������ͣ��μ�OBJECT_TYPE_ENUM
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;   //����
+        }
+
+        //ͼƬ����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PIC
+        {
+            public byte byPicType;        //ͼƬ���ͣ�1-jpg
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;        //����
+            public uint dwPicWidth;       //ͼƬ����
+            public uint dwPicHeight;      //ͼƬ�߶�
+            public uint dwPicDataLen;     //ͼƬ����ʵ�ʴ�С
+            public uint dwPicDataBuffLen; //ͼƬ���ݻ�������С
+            public IntPtr byPicDataBuff;    //ͼƬ���ݻ�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 40, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;       //����
+        }
+
+        //��ɫ������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_OBJECT_COLOR_UNION
+        {
+            public NET_DVR_COLOR struColor;   //��ɫֵ
+            public NET_DVR_PIC struPicture; //ͼƬ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;   //����
+        }
+
+        //������ɫ�����ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_OBJECT_COLOR
+        {
+            public uint dwSize;       //�ṹ���С
+            public byte byEnable;     //0-�����ã�1-����
+            public byte byColorMode;  //ȡɫ��ʽ��1-��ɫֵ��2-ͼƬ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;    //����
+            public NET_DVR_OBJECT_COLOR_UNION uObjColor; //������ɫ�����壬ȡֵ������ȡɫ��ʽ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;   //����
+        }
+
+        //��������
+        public enum AREA_TYPE_ENUM
+        {
+            ENUM_OVERLAP_REGION = 1,//��ͬ����
+            ENUM_BED_LOCATION = 2   //�����
+        }
+
+        //��������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_AUXAREA
+        {
+            public uint dwAreaType;   //�������ͣ��μ�AREA_TYPE_ENUM
+            public byte byEnable;     //0-�����ã�1-����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;     //����
+            public NET_VCA_POLYGON struPolygon; //����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;   //����
+        }
+
+        //���������б�
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_AUXAREA_LIST
+        {
+            public uint dwSize;	// �ṹ���С
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_AUXAREA_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_AUXAREA[] struArea; //��������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;	// ����
+        }
+
+        //ͨ������ģʽ
+        public enum CHAN_WORKMODE_ENUM
+        {
+            ENUM_CHAN_WORKMODE_INDEPENDENT = 1,  //����ģʽ
+            ENUM_CHAN_WORKMODE_MASTER = 2,      //��ģʽ
+            ENUM_CHAN_WORKMODE_SLAVE = 3        //��ģʽ
+        }
+
+        //ͨ������ģʽ�����ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CHANNEL_WORKMODE
+        {
+            public uint dwSize;        //�ṹ���С
+            public byte byWorkMode;    //����ģʽ���μ�CHAN_WORKMODE_ENUM
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 63, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;     //����
+        }
+
+        //�豸ͨ�������ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CHANNEL
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DOMAIN_NAME, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAddress;	//�豸IP������
+            public ushort wDVRPort;			 	    //�˿ں�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;                   //����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUserName;	        //�����û���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassword;       //��������
+            public uint dwChannel;                   //ͨ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;                  //����
+        }
+
+        //��ͨ����Ϣ������
+        [StructLayout(LayoutKind.Explicit)]
+        public struct NET_DVR_SLAVE_CHANNEL_UNION
+        {
+            [FieldOffsetAttribute(0)]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 152, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;        //�������С
+        }
+
+        //��ͨ�������ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SLAVE_CHANNEL_PARAM
+        {
+            public byte byChanType;   //��ͨ�����ͣ�1-����ͨ����2-Զ��ͨ�� 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;    //����
+            public NET_DVR_SLAVE_CHANNEL_UNION uSlaveChannel; //��ͨ�������壬ȡֵ������byChanType
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;   //����
+        }
+
+
+        //��ͨ���������ýṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SLAVE_CHANNEL_CFG
+        {
+            public uint dwSize;   //�ṹ���С
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_SLAVE_CHANNEL_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SLAVE_CHANNEL_PARAM[] struChanParam;//��ͨ������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;  //����
+        }
+
+        //��Ƶ������ϼ���¼�
+        public enum VQD_EVENT_ENUM
+        {
+            ENUM_VQD_EVENT_BLUR = 1,  //ͼ��ģ��
+            ENUM_VQD_EVENT_LUMA = 2,  //�����쳣
+            ENUM_VQD_EVENT_CHROMA = 3,  //ͼ��ƫɫ
+            ENUM_VQD_EVENT_SNOW = 4,  //ѩ������
+            ENUM_VQD_EVENT_STREAK = 5,  //���Ƹ���
+            ENUM_VQD_EVENT_FREEZE = 6,  //���涳��
+            ENUM_VQD_EVENT_SIGNAL_LOSS = 7,  //�źŶ�ʧ
+            ENUM_VQD_EVENT_PTZ = 8,  //��̨ʧ��
+            ENUM_VQD_EVENT_SCNENE_CHANGE = 9,  //����ͻ��
+            ENUM_VQD_EVENT_VIDEO_ABNORMAL = 10, //��Ƶ�쳣
+            ENUM_VQD_EVENT_VIDEO_BLOCK = 11, //��Ƶ�ڵ�
+        }
+
+        //��Ƶ��������¼������ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VQD_EVENT_COND
+        {
+            public uint dwChannel;   //ͨ����
+            public uint dwEventType; //����¼����ͣ��μ�VQD_EVENT_ENUM
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;   //����
+        }
+
+        //��Ƶ��������¼�����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VQD_EVENT_PARAM
+        {
+            public byte byThreshold;    //������ֵ����Χ[0,100]
+            public byte byTriggerMode;  //1-����������2-�����
+            public byte byUploadPic;    //0-���ϴ�ͼƬ��1-�ϴ�ͼƬ�������Ƿ��ϴ�ͼƬ���º󶼿��Դ��豸��ȡ���¼�����Ӧ���µ�һ�ű���ͼƬ���μ��ӿ�NET_DVR_StartDownload
+            public byte byRes1;         //����
+            public uint dwTimeInterval; //������������ʱ��������Χ[0,3600] ��λ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;     //����
+        }
+
+        //��Ƶ��������¼�����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VQD_EVENT_RULE
+        {
+            public uint dwSize;       //�ṹ���С 
+            public byte byEnable;     //0-�����ã�1-����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;    //����
+            public NET_DVR_VQD_EVENT_PARAM struEventParam; //��Ƶ��������¼�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[] struAlarmTime;//���ʱ��
+            public NET_DVR_HANDLEEXCEPTION_V30 struHandleType;  //������ʽ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_IVMS_IP_CHANNEL, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRelRecordChan; //����������¼��ͨ����1��ʾ������ͨ����0��ʾ������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;    //����
+        }
+
+        //��׼��������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_BASELINE_SCENE
+        {
+            public uint dwSize;     //�ṹ���С
+            public byte byEnable;   //0-�����ã�1-����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 63, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;  //����
+        }
+
+        //��׼�������������ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CONTROL_BASELINE_SCENE_PARAM
+        {
+            public uint dwSize;     //�ṹ���С
+            public uint dwChannel;  //ͨ����
+            public byte byCommand;  //�������ͣ�1-���ֶα������ݲ�ʹ�ã�2-���»�׼����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 127, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;  //����
+        }
+
+        //��Ƶ������ϱ����ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VQD_ALARM
+        {
+            public uint dwSize;                //�ṹ���С
+            public uint dwRelativeTime;        //���ʱ��
+            public uint dwAbsTime;	          //����ʱ��
+            public NET_VCA_DEV_INFO struDevInfo; //ǰ���豸��Ϣ 
+            public uint dwEventType;           //�¼����ͣ��ο�VQD_EVENT_ENUM
+            public float fThreshold;            //������ֵ[0.000,1.000]
+            public uint dwPicDataLen;          //ͼƬ���ȣ�Ϊ0��ʾû��ͼƬ
+            public IntPtr pImage;               //ָ��ͼƬ��ָ�� 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;            //����
+        }
+
+        //�궨���ӽṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CB_POINT
+        {
+            public NET_VCA_POINT struPoint;     //�궨�㣬���������ǹ����
+            public NET_DVR_PTZPOS struPtzPos;  //��������PTZ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //�궨�������ýṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_TRACK_CALIBRATION_PARAM
+        {
+            public byte byPointNum;			//��Ч�궨�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CALIB_PT, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_CB_POINT[] struCBPoint; //�궨����
+        }
+
+        //������ýṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_TRACK_CFG
+        {
+            public uint dwSize;				//�ṹ����	
+            public byte byEnable;				//�궨ʹ��
+            public byte byFollowChan;          // �����ƵĴ�ͨ��
+            public byte byDomeCalibrate;			//������������궨��1���� 0������ 
+            public byte byRes;					// �����ֽ�
+            public NET_DVR_TRACK_CALIBRATION_PARAM struCalParam; //�궨����
+        }
+
+        //ģʽ
+        public enum TRACK_MODE
+        {
+            MANUAL_CTRL = 0,  //�ֶ�
+            ALARM_TRACK    //��������
+        }
+
+        //�ֶ����ƽṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MANUAL_CTRL_INFO
+        {
+            public NET_VCA_POINT struCtrlPoint;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //ģʽ�ṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_TRACK_MODE
+        {
+            public uint dwSize;		//�ṹ����
+            public byte byTrackMode;   //ģʽ
+            public byte byRuleConfMode;   //��������ģʽ0-�������ã�1-Զ������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;   //��������0
+            [StructLayout(LayoutKind.Explicit)]
+            public struct uModeParam
+            {
+                [FieldOffsetAttribute(0)]
+                [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.U4)]
+                public uint[] dwULen;
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ALARM_JPEG
+        {
+            public byte byPicProType;	    /*����ʱͼƬ������ʽ 0-������ 1-�ϴ�*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;           //�����ֽ�
+            public NET_DVR_JPEGPARA struPicParam; 				/*ͼƬ���ṹ*/
+        }
+
+        //�������쳣��Ϊʶ�����ṹ
+        //�������ṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_IVMS_ONE_RULE
+        {
+            public byte byActive;/* �Ƿ񼤻����,0-��, ��0-�� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 7, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;//����������Ϊ0�ֶ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRuleName;//��������
+            public VCA_EVENT_TYPE dwEventType;//�쳣��Ϊʶ���¼�����
+            public NET_VCA_EVENT_UNION uEventParam;//�쳣��Ϊʶ���¼�����
+            public NET_VCA_SIZE_FILTER struSizeFilter;//�ߴ������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 68, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;/*����������Ϊ0*/
+        }
+
+        // �����ǹ���ṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_IVMS_RULECFG
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_RULE_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_IVMS_ONE_RULE[] struRule; //��������
+        }
+
+        // IVMS�쳣��Ϊʶ�����ýṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_IVMS_BEHAVIORCFG
+        {
+            public uint dwSize;
+            public byte byPicProType;//����ʱͼƬ������ʽ 0-������ ��0-�ϴ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public NET_DVR_JPEGPARA struPicParam;//ͼƬ���ṹ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT, ArraySubType = UnmanagedType.Struct)]
+            public NET_IVMS_RULECFG[] struRuleCfg;//ÿ��ʱ��ζ�Ӧ����
+        }
+
+        //���ܷ�����ȡ���ƻ��ӽṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_IVMS_DEVSCHED
+        {
+            public NET_DVR_SCHEDTIME struTime;//ʱ�����
+            public NET_DVR_PU_STREAM_CFG struPUStream;//ǰ��ȡ������
+        }
+
+        //���ܷ����Dz������ýṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_IVMS_STREAMCFG
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT, ArraySubType = UnmanagedType.Struct)]
+            public NET_IVMS_DEVSCHED[] struDevSched;//��ʱ�������ǰ��ȡ���Լ�������Ϣ
+        }
+
+        //��������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_MASK_REGION
+        {
+            public byte byEnable;//�Ƿ񼤻�, 0-�񣬷�0-��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;//��������0
+            public NET_VCA_POLYGON struPolygon;//������
+        }
+
+        //�������������ṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_MASK_REGION_LIST
+        {
+            public uint dwSize;//�ṹ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; //��������0
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_MASK_REGION_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_VCA_MASK_REGION[] struMask;//������������
+        }
+
+        //ATM�����������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_ENTER_REGION
+        {
+            public uint dwSize;
+            public byte byEnable;//�Ƿ񼤻0-�񣬷�0-��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_VCA_POLYGON struPolygon;//��������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        //IVMS������������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_IVMS_MASK_REGION_LIST
+        {
+            public uint dwSize;//�ṹ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT, ArraySubType = UnmanagedType.Struct)]
+            public NET_VCA_MASK_REGION_LIST[] struList;
+        }
+
+        //IVMS��ATM�����������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_IVMS_ENTER_REGION
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT, ArraySubType = UnmanagedType.Struct)]
+            public NET_VCA_ENTER_REGION[] struEnter;//��������
+        }
+
+        // ivms ����ͼƬ�ϴ��ṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_IVMS_ALARM_JPEG
+        {
+            public byte byPicProType;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public NET_DVR_JPEGPARA struPicParam;
+        }
+
+        // IVMS ���������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_IVMS_SEARCHCFG
+        {
+            public uint dwSize;
+            public NET_DVR_MATRIX_DEC_REMOTE_PLAY struRemotePlay;// Զ�̻ط�
+            public NET_IVMS_ALARM_JPEG struAlarmJpeg;// �����ϴ�ͼƬ����
+            public NET_IVMS_RULECFG struRuleCfg;//IVMS ����������
+        }
+
+        /************************************end******************************************/
+        //NAS��֤����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IDENTIFICATION_PARAM
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUserName;		/* �û��� 32*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassword;		/* ���� 16*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;	//����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Explicit)]
+        public struct NET_DVR_MOUNT_PARAM_UNION
+        {
+            [FieldOffsetAttribute(0)]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 52, ArraySubType = UnmanagedType.I1)]
+            public byte[] uLen;   //������ṹ��С
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_NAS_MOUNT_PARAM
+        {
+            public byte byMountType; //0������,1~NFS, 2~ SMB/CIFS
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public NET_DVR_MOUNT_PARAM_UNION uMountParam;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Explicit)]
+        public struct NET_DVR_MOUNTMETHOD_PARAM_UNION
+        {
+            [FieldOffsetAttribute(0)]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 56, ArraySubType = UnmanagedType.I1)]
+            public byte[] uLen; //������ṹ��С   
+        }
+
+        //����Ӳ�̽ṹ����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SINGLE_NET_DISK_INFO
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;//����
+            public NET_DVR_IPADDR struNetDiskAddr;//����Ӳ�̵�ַ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PATHNAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sDirectory;// PATHNAME_LEN = 128
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 68, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;//����
+        }
+
+        public const int MAX_NET_DISK = 16;
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_NET_DISKCFG
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_NET_DISK, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SINGLE_NET_DISK_INFO[] struNetDiskParam;
+        }
+
+        //�¼�����
+        //������
+        public enum MAIN_EVENT_TYPE
+        {
+            EVENT_MOT_DET = 0,//�ƶ����
+            EVENT_ALARM_IN = 1,//��������
+            EVENT_VCA_BEHAVIOR = 2,//�쳣��Ϊʶ��
+            EVENT_INQUEST = 3,       //��Ѷ�¼�
+            EVENT_VCA_DETECTION = 4, //�������
+            EVENT_STREAM_INFO = 100  //��ID��Ϣ
+        }
+
+        public const int INQUEST_START_INFO = 0x1001;      /*Ѷ�ʿ�ʼ��Ϣ*/
+        public const int INQUEST_STOP_INFO = 0x1002;       /*Ѷ��ֹͣ��Ϣ*/
+        public const int INQUEST_TAG_INFO = 0x1003;       /*�ص�����Ϣ*/
+        public const int INQUEST_SEGMENT_INFO = 0x1004;      /*��ѶƬ��״̬��Ϣ*/
+
+        public enum VCA_DETECTION_MINOR_TYPE:uint
+        {
+            EVENT_VCA_TRAVERSE_PLANE = 1,        //Խ�����
+            EVENT_FIELD_DETECTION,		     //�����������
+            EVENT_AUDIO_INPUT_ALARM,      //��Ƶ�����쳣
+            EVENT_SOUND_INTENSITY_ALARM,   //��ǿͻ�����
+            EVENT_FACE_DETECTION,             //�������
+            EVENT_VIRTUAL_FOCUS_ALARM, /*�齹���*/
+            EVENT_SCENE_CHANGE_ALARM, /*����������*/
+            EVENT_ALL = 0xffffffff				//��ʾȫ��
+        }
+
+        //�쳣��Ϊʶ�������Ͷ�Ӧ�Ĵ����ͣ� 0xffff��ʾȫ��
+        public enum BEHAVIOR_MINOR_TYPE
+        {
+            EVENT_TRAVERSE_PLANE = 0,// ��Խ������,
+            EVENT_ENTER_AREA,//Ŀ���������,֧���������
+            EVENT_EXIT_AREA,//Ŀ���뿪����,֧���������
+            EVENT_INTRUSION,// �ܽ�����,֧���������
+            EVENT_LOITER,//�ǻ�,֧���������
+            EVENT_LEFT_TAKE,//�������,֧���������
+            EVENT_PARKING,//ͣ��,֧���������
+            EVENT_RUN,//����,֧���������
+            EVENT_HIGH_DENSITY,//��������Ա�ܶ�,֧���������
+            EVENT_STICK_UP,//��ֽ��,֧���������
+            EVENT_INSTALL_SCANNER,//��װ������,֧���������
+            EVENT_OPERATE_OVER_TIME,        // ������ʱ
+            EVENT_FACE_DETECT,              // �쳣����
+            EVENT_LEFT,                     // ��Ʒ����
+            EVENT_TAKE,                      // ��Ʒ��ȡ
+            EVENT_LEAVE_POSITION,         //��ΣĿ���λ���-����¼�
+            EVENT_TRAIL_INFO = 16,            //�
+            EVENT_FALL_DOWN_INFO = 19,                 //����
+            EVENT_OBJECT_PASTE = 20,		// ����ճ������
+            EVENT_FACE_CAPTURE_INFO = 21,                //��������
+            EVENT_MULTI_FACES_INFO = 22,                  //��������
+            EVENT_AUDIO_ABNORMAL_INFO = 23,             //��ǿͻ��
+            EVENT_DETECT = 24     			   //�������
+        }
+
+        // ������100����Ӧ��С����
+        public enum STREAM_INFO_MINOR_TYPE
+        {
+            EVENT_STREAM_ID = 0,				// ��ID
+            EVENT_TIMING = 1,					// ��ʱ¼��
+            EVENT_MOTION_DETECT = 2,			// �ƶ����
+            EVENT_ALARM = 3,					// ����¼��
+            EVENT_ALARM_OR_MOTION_DETECT = 4,	// �������ƶ����
+            EVENT_ALARM_AND_MOTION_DETECT = 5,	// �������ƶ����
+            EVENT_COMMAND_TRIGGER = 6,			// �����
+            EVENT_MANNUAL = 7,					// �ֶ�¼��
+            EVENT_BACKUP_VOLUME = 8				// �浵��¼��
+        }
+
+        //��ŵCVR
+        public const int MAX_ID_COUNT = 256;
+        public const int MAX_STREAM_ID_COUNT = 1024;
+        public const int STREAM_ID_LEN = 32;
+        public const int PLAN_ID_LEN = 32;
+
+        // ����Ϣ - 72�ֽڳ�
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_STREAM_INFO
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = STREAM_ID_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byID;      //ID����
+            public uint dwChannel;                //�����豸ͨ��������0xffffffffʱ����ʾ������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;                //����
+            public void Init()
+            {
+                byID = new byte[STREAM_ID_LEN];
+                byRes = new byte[32];
+            }
+        }
+
+        //�¼��������� 200-04-07 9000_1.1
+        public const int SEARCH_EVENT_INFO_LEN = 300;
+
+        //��������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct EVENT_ALARM_BYBIT
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ALARMIN_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAlarmInNo;//��������ţ�byAlarmInNo[0]����1���ʾ�����ɱ�������1�������¼�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = SEARCH_EVENT_INFO_LEN - MAX_ALARMIN_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+
+            public void init()
+            {
+                byAlarmInNo = new byte[MAX_ALARMIN_V30];
+                byRes = new byte[SEARCH_EVENT_INFO_LEN - MAX_CHANNUM_V30];
+            }
+        }
+
+        //�������� ��ֵ��ʾ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct EVENT_ALARM_BYVALUE
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128, ArraySubType = UnmanagedType.U2)]
+            public ushort[] wAlarmInNo;//��������ţ�byAlarmInNo[0]����1���ʾ�����ɱ�������1�������¼�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 44, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+
+            public void init()
+            {
+                wAlarmInNo = new ushort[128];
+                byRes = new byte[44];
+            }
+        }
+
+        //�ƶ����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct EVENT_MOTION_BYBIT
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byMotDetChanNo;//�ƶ����ͨ����byMotDetChanNo[0]����1���ʾ������ͨ��1�����ƶ���ⴥ�����¼�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = SEARCH_EVENT_INFO_LEN - MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+
+            public void init()
+            {
+                byMotDetChanNo = new byte[MAX_CHANNUM_V30];
+                byRes = new byte[SEARCH_EVENT_INFO_LEN - MAX_CHANNUM_V30];
+            }
+        }
+
+        //�ƶ����--��ֵ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct EVENT_MOTION_BYVALUE
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.U2)]
+            public ushort[] wMotDetChanNo;//��������ţ�byAlarmInNo[0]����1���ʾ�����ɱ�������1�������¼�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 172, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+
+            public void init()
+            {
+                wMotDetChanNo = new ushort[64];
+                byRes = new byte[172];
+            }
+        }
+
+        //�쳣��Ϊʶ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct EVENT_VCA_BYBIT
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byChanNo;//�����¼���ͨ��
+            public byte byRuleID;//����ID��0xff��ʾȫ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 235, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;//����
+
+            public void init()
+            {
+                byChanNo = new byte[MAX_CHANNUM_V30];
+                byRes1 = new byte[235];
+            }
+        }
+
+        //�쳣��Ϊʶ��--��ֵ��ʽ���� 
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct EVENT_VCA_BYVALUE
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.U2)]
+            public ushort[] wChanNo;	//�����¼���ͨ��			
+            public byte byRuleID;      //�쳣��Ϊʶ�����ͣ�����0xff��ʾȫ������0��ʼ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 171, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;	 /*����*/
+            public void init()
+            {
+                wChanNo = new ushort[64];
+                byRes = new byte[171];
+            }
+        }
+
+        //��Ѷ�¼���������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct EVENT_INQUEST_PARAM
+		{			
+            public byte byRoomIndex;    //��Ѷ�ұ��,��1��ʼ
+			[MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 299, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;     //����
+            public void init()
+            {
+                byRes = new byte[299];
+            }
+		}
+
+        //��������������
+		[StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct EVENT_VCADETECT_BYBIT
+		{
+			[MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 256, ArraySubType = UnmanagedType.I1)]
+            public byte[] byChan;//������������ͨ���ţ��������±��ʾ��byChan[0]����1���ʾ������ͨ��1�����ƶ���ⴥ�����¼� 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 44, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;     //����
+            public void init()
+            {
+                byChan = new byte[256];
+                byRes = new byte[44];
+            }
+		}
+		
+        //�������������� ��ͨ���Ű�ֵ��ʾ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct EVENT_VCADETECT_BYVALUE
+		{
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30-1, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwChanNo;// ����ͨ����,��ֵ��ʾ��0xffffffff��Ч���Һ�������Ҳ��ʾ��Чֵ
+            public byte byAll;//0-��ʾ����ȫ����1-��ʾȫ����
+			[MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 47, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public void init()
+            {
+                dwChanNo = new uint[MAX_CHANNUM_V30 - 1];
+                byRes = new byte[47];
+            }
+		}
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct EVENT_STREAMID_PARAM
+        {
+            public NET_DVR_STREAM_INFO struIDInfo; // ��id��Ϣ��72�ֽڳ�
+            public uint dwCmdType;  // �ⲿ�������ͣ�NVR�����ƴ洢ʹ��
+            public byte byBackupVolumeNum; //�浵���ţ�CVRʹ��
+			[MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 223, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public void init()
+            {
+                struIDInfo.Init();
+                byRes = new byte[223];
+            }
+		}
+
+        [StructLayout(LayoutKind.Explicit)]
+        public struct SEARCH_EVENT_UNION
+        {
+            [FieldOffsetAttribute(0)]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = SEARCH_EVENT_INFO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byLen;
+           /* [FieldOffsetAttribute(0)]
+            public EVENT_ALARM_BYBIT struAlarmParam;
+            [FieldOffsetAttribute(0)]
+            public EVENT_ALARM_BYVALUE struAlarmParamByValue;
+            [FieldOffsetAttribute(0)]
+            public EVENT_MOTION_BYBIT struMotionParam;
+            [FieldOffsetAttribute(0)]
+            public EVENT_MOTION_BYVALUE struMotionParamByValue;
+            [FieldOffsetAttribute(0)]
+            public EVENT_VCA_BYBIT struVcaParam;
+            [FieldOffsetAttribute(0)]
+            public EVENT_VCA_BYVALUE struVcaParamByValue;
+            [FieldOffsetAttribute(0)]
+            public EVENT_INQUEST_PARAM struInquestParam;
+            [FieldOffsetAttribute(0)]
+            public EVENT_VCADETECT_BYBIT struVCADetectByBit;
+            [FieldOffsetAttribute(0)]
+            public EVENT_VCADETECT_BYVALUE struVCADetectByValue;
+            [FieldOffsetAttribute(0)]
+            public EVENT_STREAMID_PARAM struStreamIDParam;
+            * */
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SEARCH_EVENT_PARAM
+        {
+            public ushort wMajorType;//0-�ƶ���⣬1-��������, 2-�����¼�
+            public ushort wMinorType;//����������- ���������ͱ仯��0xffff��ʾȫ��
+            public NET_DVR_TIME struStartTime;//�����Ŀ�ʼʱ�䣬ֹͣʱ��: ͬʱΪ(0, 0) ��ʾ�������ʱ�俪ʼ���������ǰ���4000���¼�
+            public NET_DVR_TIME struEndTime;
+            public byte byLockType;		// 0xff-ȫ����0-δ����1-����
+            public byte byValue;			//0-��λ��ʾ��1-��ֵ��ʾ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 130, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;//����
+            public SEARCH_EVENT_UNION uSeniorPara;
+        }
+
+        //����������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct EVENT_ALARM_RET
+        {
+            public uint dwAlarmInNo;//���������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = SEARCH_EVENT_INFO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+
+            public void init()
+            {
+                byRes = new byte[SEARCH_EVENT_INFO_LEN];
+            }
+        }
+        //�ƶ������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct EVENT_MOTION_RET
+        {
+            public uint dwMotDetNo;//�ƶ����ͨ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = SEARCH_EVENT_INFO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+
+            public void init()
+            {
+                byRes = new byte[SEARCH_EVENT_INFO_LEN];
+            }
+        }
+        //�쳣��Ϊʶ���� 
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct EVENT_VCA_RET
+        {
+            public uint dwChanNo;//�����¼���ͨ����
+            public byte byRuleID;//����ID
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;//����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRuleName;//��������
+            public NET_VCA_EVENT_UNION uEvent;//��Ϊ�¼�������wMinorType = VCA_EVENT_TYPE�����¼�����
+
+            public void init()
+            {
+                byRes1 = new byte[3];
+                byRuleName = new byte[NAME_LEN];
+            }
+        }
+
+        //��Ѷ�¼���ѯ��� 
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct EVENT_INQUEST_RET
+        {
+            public byte byRoomIndex;  //��Ѷ�ұ��,��1��ʼ
+            public byte byDriveIndex; //��¼�����,��1��ʼ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 6, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;  //����            
+            public uint dwSegmentNo;     //��Ƭ���ڱ�����Ѷ�е����,��1��ʼ 
+            public ushort wSegmetSize;     //��Ƭ�ϵĴ�С, ��λM 
+            public ushort wSegmentState;   //��Ƭ��״̬ 0 ��¼������1 ��¼�쳣��2 ����¼��Ѷ
+			[MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 288, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;     //����
+
+            public void init()
+            {
+                byRes1 = new byte[6];
+                byRes2 = new byte[288];
+            }
+        }
+
+        //��id¼���ѯ���
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct EVENT_STREAMID_RET
+        {
+            public uint dwRecordType;	//¼������ 0-��ʱ¼�� 1-�ƶ���� 2-����¼�� 3-����|�ƶ���� 4-����&�ƶ���� 5-����� 6-�ֶ�¼�� 7-�𶯱��� 8-�������� 9-���ܱ��� 10-�ش�¼��
+            public uint dwRecordLength;	//¼���С
+            public byte byLockFlag;    // ������־ 0��û���� 1������
+            public byte byDrawFrameType;    // 0���dz�֡¼�� 1����֡¼��
+			[MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+			[MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byFileName; 	//�ļ���
+            public uint dwFileIndex;    		// �浵���ϵ��ļ�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 256, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+
+            public void init()
+            {
+                byRes1 = new byte[2];
+                byFileName = new byte[NAME_LEN];
+                byRes = new byte[256];
+            }
+        }
+
+        [StructLayout(LayoutKind.Explicit)]
+        public struct SEARCH_EVENT_RET
+        {
+            [FieldOffset(0)]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 304, ArraySubType = UnmanagedType.I1)]
+            public byte[] byEventRetUnion;
+            /*
+            [FieldOffset(0)]
+            public EVENT_ALARM_RET struAlarmRet;
+            [FieldOffset(0)]
+            public EVENT_MOTION_RET struMotionRet;
+            [FieldOffset(0)]
+            public EVENT_VCA_RET struVcaRet;
+            [FieldOffset(0)]
+            public EVENT_INQUEST_RET struInquestRet;
+            [FieldOffset(0)]
+            public EVENT_STREAMID_RET struStreamIDRet;
+             * */
+        }
+        //���ҷ��ؽ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SEARCH_EVENT_RET
+        {
+            public ushort wMajorType;//������MA
+            public ushort wMinorType;//������
+            public NET_DVR_TIME struStartTime;//�¼���ʼ��ʱ��
+            public NET_DVR_TIME struEndTime;//�¼�ֹͣ��ʱ�䣬�����¼�ʱ�Ϳ�ʼʱ��һ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byChan;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 36, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public SEARCH_EVENT_RET uSeniorRet;
+
+            public void init()
+            {
+                byChan = new byte[MAX_CHANNUM_V30];
+                byRes = new byte[36];
+            }
+        }
+
+        //SDK_V35  2009-10-26
+
+        // �궨��������
+        public enum tagCALIBRATE_TYPE
+        {
+            PDC_CALIBRATE  = 0x01,  // PDC �궨
+            BEHAVIOR_OUT_CALIBRATE  = 0x02, //��Ϊ���ⳡ���궨  
+            BEHAVIOR_IN_CALIBRATE = 0x03,    // ��Ϊ���ڳ����궨 
+            ITS_CALBIRETE       = 0x04      //  ��ͨ�¼��궨
+        }
+
+        public const int MAX_RECT_NUM = 6;
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_RECT_LIST
+        {	
+            public byte byRectNum;    // ���ο�ĸ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 11, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;  //�����ֽ� 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_RECT_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_VCA_RECT[] struVcaRect; // ���Ϊ6��Rect 
+        }
+
+        // PDC �궨����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PDC_CALIBRATION
+        {
+            public NET_DVR_RECT_LIST struRectList;       // �궨���ο��б�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 120, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;       // �����ֽ� 
+        }
+
+        // �궨�ߵ��������������ʾ��ǰ�궨����ʵ�ʱ�ʾ���Ǹ߶��߻��dz����ߡ�
+        public enum LINE_MODE
+        {
+            HEIGHT_LINE,        //�߶�������
+            LENGTH_LINE        //����������
+        }
+        /*�����ñ궨��Ϣ��ʱ�������Ӧλ������ʹ�ܣ���������ز�������û������ʹ�ܣ���궨����Ի�ȡ��ص����������*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CAMERA_PARAM
+        {
+            public byte byEnableHeight;     // �Ƿ�ʹ������������߶���
+            public byte byEnableAngle;      // �Ƿ�ʹ����������������Ƕ�
+            public byte byEnableHorizon;    // �Ƿ�ʹ�������������ƽ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 5, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;   // �����ֽ� 
+            public float  fCameraHeight;    // ������߶�
+            public float  fCameraAngle;     // ����������Ƕ�
+            public float  fHorizon;         // �����еĵ�ƽ��
+        }
+        
+        /*��fValue��ʾĿ��߶ȵ�ʱ��struStartPoint��struEndPoint�ֱ��ʾĿ��ͷ����ͽŲ��㡣
+         * ��fValue��ʾ�߶γ��ȵ�ʱ��struStartPoint��struEndPoint�ֱ��ʾ�߶���ʼ����յ㣬
+         * mode��ʾ��ǰ�����߱�ʾ�߶��߻��dz����ߡ�*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_LINE_SEGMENT
+        {
+            public byte byLineMode;     // ���� LINE_MODE
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;       // �����ֽ� 
+            public NET_VCA_POINT   struStartPoint;  
+            public NET_VCA_POINT   struEndPoint;
+            public float fValue;
+        }
+
+        public const int MAX_LINE_SEG_NUM = 8;
+
+        /*�궨������Ŀǰ��Ҫ4-8�������ߣ��Ի�ȡ�������ز���*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_BEHAVIOR_OUT_CALIBRATION
+        {
+            public uint dwLineSegNum;          // �����߸���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_LINE_SEG_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_LINE_SEGMENT[]  struLineSegment;    // ������������
+            public NET_DVR_CAMERA_PARAM  struCameraParam;    // ���������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        /*�ýṹ���ʾIAS���ܿ�궨���������а���һ��Ŀ����һ����Ӧ�ĸ߶ȱ궨�ߣ�
+         * Ŀ���Ϊվ����������Ӿ��ο򣻸߶���������ʶ����ͷ���㵽�ŵ�ı궨�ߣ��ù�һ�������ʾ��*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IN_CAL_SAMPLE
+        {
+            public NET_VCA_RECT struVcaRect;   // Ŀ���
+            public NET_DVR_LINE_SEGMENT struLineSegment;    // �߶ȱ궨��
+        }
+
+        public const int MAX_SAMPLE_NUM = 5;
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_BEHAVIOR_IN_CALIBRATION 
+        {
+            public uint dwCalSampleNum;      //  �궨��������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_SAMPLE_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_IN_CAL_SAMPLE[]  struCalSample; // �궨����������
+            public NET_DVR_CAMERA_PARAM    struCameraParam;    // ���������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        public const int CALIB_PT_NUM = 4;
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ITS_CALIBRATION
+        {
+            public uint dwPointNum; //�궨����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = CALIB_PT_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_VCA_POINT[] struPoint; //ͼ������
+            public float fWidth;
+            public float fHeight;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 100, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;        // �����ֽ�
+        }
+
+        // �궨����������
+        // ��������ر궨�������Է��ڸýṹ����
+        [StructLayoutAttribute(LayoutKind.Explicit)]
+        public struct NET_DVR_CALIBRATION_PRARM_UNION
+        {
+            [FieldOffsetAttribute(0)]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 240, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;  //������ṹ��С
+            /*[FieldOffsetAttribute(0)]
+            public NET_DVR_PDC_CALIBRATION struPDCCalibration;  //PDC �궨����
+            [FieldOffsetAttribute(0)]
+            public NET_DVR_BEHAVIOR_OUT_CALIBRATION  struBehaviorOutCalibration;  //  ��Ϊ���ⳡ���궨  ��ҪӦ����IVS��
+            [FieldOffsetAttribute(0)]
+            public NET_DVR_BEHAVIOR_IN_CALIBRATION  struBehaviorInCalibration;     // ��Ϊ���ڳ����궨����ҪӦ��IAS�� 
+            [FieldOffsetAttribute(0)]
+            public NET_DVR_ITS_CALIBRATION struITSCalibration;
+             * */
+        }
+
+        // �궨���ýṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CALIBRATION_CFG
+        {
+            public uint dwSize;               //�궨�ṹ��С
+            public byte byEnable;           // �Ƿ����ñ궨
+            public byte byCalibrationType;    // �궨���� ���ݲ�ͬ��������������ѡ��ͬ�ı궨 �ο�CALIBRATE_TYPE
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_DVR_CALIBRATION_PRARM_UNION uCalibrateParam;  // �궨����������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 12, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        //����ͳ�Ʒ���ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PDC_ENTER_DIRECTION
+        {
+            public NET_VCA_POINT struStartPoint; //����ͳ�Ʒ�����ʼ��
+            public NET_VCA_POINT struEndPoint;    // ����ͳ�Ʒ�������� 
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PDC_RULE_CFG
+        {
+            public uint dwSize;              //�ṹ��С
+            public byte byEnable;             // �Ƿ񼤻����;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 23, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;       // �����ֽ� 
+            public NET_VCA_POLYGON  struPolygon;            // �����
+            public NET_DVR_PDC_ENTER_DIRECTION  struEnterDirection;    // �������뷽��
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PDC_RULE_CFG_V41
+        {
+            public uint dwSize;              //�ṹ��С
+            public byte byEnable;             // �Ƿ񼤻����;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 23, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;       // �����ֽ� 
+            public NET_VCA_POLYGON struPolygon;            // �����
+            public NET_DVR_PDC_ENTER_DIRECTION  struEnterDirection;    // �������뷽��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME struAlarmTime;//����ʱ��
+            public NET_DVR_TIME_EX struDayStartTime; //���쿪ʼʱ�䣬ʱ������Ч
+            public NET_DVR_TIME_EX struNightStartTime; //ҹ����ʼʱ�䣬ʱ������Ч
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 100, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;       // �����ֽ�
+        }
+
+        //���ð���Ϣ�ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_TRIAL_VERSION_CFG
+        {
+            public uint dwSize;
+            public ushort wReserveTime; //������ʣ��ʱ�䣬0xffff��ʾ��Ч����λ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 62, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SYN_CHANNEL_NAME_PARAM
+        {
+            public uint dwSize;
+            public uint dwChannel; //ͨ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; 
+        }
+
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_TIME_SEGMENT
+        {
+            public NET_DVR_SIMPLE_DAYTIME struBeginTime;  //begin time
+            public NET_DVR_SIMPLE_DAYTIME struEndTime;    //end time
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SINGLE_PLAN_SEGMENT
+        {
+            public byte byEnable; //whether to enable, 1-enable, 0-disable
+            public byte byDoorStatus; //door status(control ladder status),0-invaild, 1-always open(free), 2-always close(forbidden), 3-ordinary status(used by door plan)
+            public byte byVerifyMode;  //verify method, 0-invaild, 1-swipe card, 2-swipe card +password(used by card verify ) 3-swipe card(used by card verify) 4-swipe card or password(used by card verify)
+            //5-fingerprint, 6-fingerprint and passwd, 7-fingerprint or swipe card, 8-fingerprint and swipe card, 9-fingerprint and passwd and swipe card,
+            //10-face or finger print or swipe card or password,11-face and finger print,12-face and password,13-face and swipe card,14-face,15-employee no and password,
+            //16-finger print or password,17-employee no and finger print,18-employee no and finger print and password,
+            //19-face and finger print and swipe card,20-face and password and finger print,21-employee no and face,22-face or face and swipe card
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 5, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public NET_DVR_TIME_SEGMENT struTimeSegment;  //time segment parameter 
+
+            public void Init()
+            {
+                byRes = new byte[5];
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_WEEK_PLAN_CFG
+        {
+            public uint dwSize;
+            public byte byEnable;  //whether to enable, 1-enable, 0-disable
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SINGLE_PLAN_SEGMENT[] struPlanCfg; //week plan parameter
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+
+            public void Init()
+            {
+                struPlanCfg = new NET_DVR_SINGLE_PLAN_SEGMENT[MAX_DAYS * MAX_TIMESEGMENT_V30];
+                foreach (NET_DVR_SINGLE_PLAN_SEGMENT singlStruPlanCfg in struPlanCfg)
+                {
+                    singlStruPlanCfg.Init();
+                }
+                byRes1 = new byte[3];
+                byRes2 = new byte[16];
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_HOLIDAY_PLAN_CFG
+        {
+            public uint dwSize;
+            public byte byEnable;  //whether to enable, 1-enable, 0-disable
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_DVR_DATE struBeginDate;  //holiday begin date
+            public NET_DVR_DATE struEndDate;  //holiday end date
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SINGLE_PLAN_SEGMENT[] struPlanCfg;  //time segment parameter 
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)]
+            public byte[] byRes2;
+
+            public void Init()
+            {
+                struPlanCfg = new NET_DVR_SINGLE_PLAN_SEGMENT[MAX_TIMESEGMENT_V30];
+                foreach (NET_DVR_SINGLE_PLAN_SEGMENT singlStruPlanCfg in struPlanCfg)
+                {
+                    singlStruPlanCfg.Init();
+                }
+                byRes1 = new byte[3];
+                byRes2 = new byte[16];
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_HOLIDAY_GROUP_CFG
+        {
+            public uint dwSize;
+            public byte byEnable; //whether to enable, 1-enable, 0-disable 
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = HOLIDAY_GROUP_NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byGroupName; //holiday group name 
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = MAX_HOLIDAY_PLAN_NUM, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwHolidayPlanNo; //holiday plan No. fill in from the front side, invalid when meet zero.
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+
+            public void Init()
+            {
+                byGroupName = new byte[HOLIDAY_GROUP_NAME_LEN];
+                dwHolidayPlanNo = new uint[MAX_HOLIDAY_PLAN_NUM];
+                byRes1 = new byte[3];
+                byRes2 = new byte[32];
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PLAN_TEMPLATE
+        {
+            public uint dwSize;
+            public byte byEnable; //whether to enable, 1-enable, 0-disable 
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = TEMPLATE_NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byTemplateName; //template name 
+            public uint dwWeekPlanNo; //week plan no. 0 invalid
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = MAX_HOLIDAY_GROUP_NUM, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwHolidayGroupNo; //holiday group. fill in from the front side, invalid when meet zero.
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+
+            public void Init()
+            {
+                byTemplateName = new byte[TEMPLATE_NAME_LEN];
+                dwHolidayGroupNo = new uint[MAX_HOLIDAY_GROUP_NUM];
+                byRes1 = new byte[3];
+                byRes2 = new byte[32];
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_HOLIDAY_PLAN_COND
+        {
+            public uint dwSize;
+            public uint dwHolidayPlanNumber; //Holiday plan number 
+            public ushort wLocalControllerID; //On the controller serial number [1, 64]
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 106, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public void Init()
+            {
+                byRes = new byte[106];
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_WEEK_PLAN_COND
+        {
+            public uint dwSize;
+            public uint dwWeekPlanNumber; //Week plan number 
+            public ushort wLocalControllerID; //On the controller serial number [1, 64]
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 106, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+
+            public void Init()
+            {
+                byRes = new byte[106];
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_HOLIDAY_GROUP_COND
+        {
+            public uint dwSize;
+            public uint dwHolidayGroupNumber; //Holiday group number 
+            public ushort wLocalControllerID; //On the controller serial number [1, 64]
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 106, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+
+            public void Init()
+            {
+                byRes = new byte[106];
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PLAN_TEMPLATE_COND
+        {
+            public uint dwSize;
+            public uint dwPlanTemplateNumber; //Plan template number, starting from 1, the maximum value from the entrance guard capability sets 
+            public ushort wLocalControllerID; //On the controller serial number[1,64], 0 is invalid 
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 106, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+
+            public void Init()
+            {
+                byRes = new byte[106];
+            }
+        }
+
+
+        public const int MAX_TIMESEGMENT_V30 = 8; //Maximum number of time segments in 9000 DVR's guard schedule
+        public const int HOLIDAY_GROUP_NAME_LEN = 32;  //holiday group name len
+        public const int MAX_HOLIDAY_PLAN_NUM = 16;  //holiday max plan number
+        public const int TEMPLATE_NAME_LEN = 32; //plan template name len 
+        public const int MAX_HOLIDAY_GROUP_NUM = 16;   //plan template max group number
+
+        public const int NET_DVR_GET_WEEK_PLAN_CFG = 2100; //get door status week plan config 
+        public const int NET_DVR_SET_WEEK_PLAN_CFG = 2101; //set door status week plan config 
+        public const int NET_DVR_GET_DOOR_STATUS_HOLIDAY_PLAN = 2102; //get door status holiday week plan config 
+        public const int NET_DVR_SET_DOOR_STATUS_HOLIDAY_PLAN = 2103; //set door status holiday week plan config
+        public const int NET_DVR_GET_DOOR_STATUS_HOLIDAY_GROUP = 2104; //get door holiday group parameter
+        public const int NET_DVR_SET_DOOR_STATUS_HOLIDAY_GROUP = 2105; //set door holiday group parameter
+        public const int NET_DVR_GET_DOOR_STATUS_PLAN_TEMPLATE = 2106; //get door status plan template parameter
+        public const int NET_DVR_SET_DOOR_STATUS_PLAN_TEMPLATE = 2107; //set door status plan template parameter
+        public const int NET_DVR_GET_VERIFY_WEEK_PLAN = 2124; //get reader card verfy week plan
+        public const int NET_DVR_SET_VERIFY_WEEK_PLAN = 2125; //set reader card verfy week plan
+        public const int NET_DVR_GET_CARD_RIGHT_WEEK_PLAN = 2126;  //get card right week plan 
+        public const int NET_DVR_SET_CARD_RIGHT_WEEK_PLAN = 2127; //set card right week plan 
+        public const int NET_DVR_GET_VERIFY_HOLIDAY_PLAN = 2128; //get card reader verify holiday plan 
+        public const int NET_DVR_SET_VERIFY_HOLIDAY_PLAN = 2129; //set card reader verify holiday plan 
+        public const int NET_DVR_GET_CARD_RIGHT_HOLIDAY_PLAN = 2130; //get card right holiday plan 
+        public const int NET_DVR_SET_CARD_RIGHT_HOLIDAY_PLAN = 2131; //set card right holiday plan 
+        public const int NET_DVR_GET_VERIFY_HOLIDAY_GROUP = 2132; //get card reader verify holiday group 
+        public const int NET_DVR_SET_VERIFY_HOLIDAY_GROUP = 2133; //set card reader verify holiday group 
+        public const int NET_DVR_GET_CARD_RIGHT_HOLIDAY_GROUP = 2134; //get card right holiday group 
+        public const int NET_DVR_SET_CARD_RIGHT_HOLIDAY_GROUP = 2135; //set card right holiday group 
+        public const int NET_DVR_GET_VERIFY_PLAN_TEMPLATE = 2136; //get card reader verify plan template 
+        public const int NET_DVR_SET_VERIFY_PLAN_TEMPLATE = 2137; //set card reader verify plan template 
+        public const int NET_DVR_GET_CARD_RIGHT_PLAN_TEMPLATE = 2138; //get card right plan template
+        public const int NET_DVR_SET_CARD_RIGHT_PLAN_TEMPLATE = 2139; //set card right plan template
+        // V50
+        public const int NET_DVR_GET_CARD_RIGHT_WEEK_PLAN_V50 = 2304;  //Access card right V50 weeks plan parameters
+        public const int NET_DVR_SET_CARD_RIGHT_WEEK_PLAN_V50 = 2305;  //Set card right V50 weeks plan parameters 
+        public const int NET_DVR_GET_CARD_RIGHT_HOLIDAY_PLAN_V50 = 2310;  //Access card right parameters V50 holiday plan  
+        public const int NET_DVR_SET_CARD_RIGHT_HOLIDAY_PLAN_V50 = 2311;  //Set card right parameters V50 holiday plan
+        public const int NET_DVR_GET_CARD_RIGHT_HOLIDAY_GROUP_V50 = 2316; //Access card right parameters V50 holiday group
+        public const int NET_DVR_SET_CARD_RIGHT_HOLIDAY_GROUP_V50 = 2317; //Set card right parameters V50 holiday group
+        public const int NET_DVR_GET_CARD_RIGHT_PLAN_TEMPLATE_V50 = 2322; //Access card right parameters V50 plan template
+        public const int NET_DVR_SET_CARD_RIGHT_PLAN_TEMPLATE_V50 = 2323; //Set card right parameters V50 plan template
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_RESET_COUNTER_CFG
+        {
+            public uint dwSize;
+            public byte byEnable; //�Ƿ����ã�0-�����ã�1-����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_TIME_EX[] struTime;//��������ʱ�䣬ʱ������Ч
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; 
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VCA_CTRLINFO_COND
+        {
+            public uint dwSize;
+            public NET_DVR_STREAM_INFO  struStreamInfo;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VCA_CTRLINFO_CFG
+        {
+            public uint dwSize;
+            public byte byVCAEnable;     //�Ƿ�������
+            public byte byVCAType;       //�����������ͣ�VCA_CHAN_ABILITY_TYPE 
+            public byte byStreamWithVCA; //�������Ƿ��������Ϣ
+            public byte byMode;			//ģʽ��ATM ����ʱ����VCA_CHAN_MODE_TYPE ,TFS ����ʱ���� TFS_CHAN_MODE_TYPE���쳣��Ϊʶ��������ʱ����BEHAVIOR_SCENE_MODE_TYPE
+            public byte byControlType;   //�������ͣ���λ��ʾ��0-��1-��
+	                        //byControlType &1 �Ƿ�����ץ�Ĺ���
+                            //byControlType &2 �Ƿ���������ǰ���豸
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 83, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; 		//����������Ϊ0
+        }
+
+        /*����������ͳ�Ʋ���  ������Ϊ�ڲ��ؼ��ֲ���
+         * HUMAN_GENERATE_RATE
+         * Ŀ�������ٶȲ���������PDC������Ŀ����ٶȡ��ٶ�Խ�죬Ŀ��Խ�������ɡ�
+         * ��������Ƶ���������ϲ�ԱȶȽϵ�ʱ���������õĹ��������Сʱ��Ӧ�ӿ�Ŀ�������ٶȣ� ����Ŀ���©�죻
+         * ��������Ƶ�жԱȶȽϸ�ʱ�����߹�������ϴ�ʱ��Ӧ�ý���Ŀ�������ٶȣ��Լ�����졣
+         * Ŀ�������ٶȲ�������5����1���ٶ�������5����죬Ĭ�ϲ���Ϊ3��
+         *
+         * DETECT_SENSITIVE
+         * Ŀ���������ȿ��Ʋ���������PDC����һ���������򱻼��ΪĿ��������ȡ�
+         * ������Խ�ߣ���������Խ���ױ����ΪĿ�꣬������Խ����Խ�Ѽ��ΪĿ�ꡣ
+         * ��������Ƶ���������ϲ�ԱȶȽϵ�ʱ��Ӧ��߼�������ȣ� ����Ŀ���©�죻
+         * ��������Ƶ�жԱȶȽϸ�ʱ��Ӧ�ý��ͼ�������ȣ��Լ�����졣
+         * ��Ӧ��������5��������1��������ͣ�5����ߣ�Ĭ�ϼ���Ϊ3��
+         * 
+         * TRAJECTORY_LEN
+         * ���ɳ��ȿ��Ʋ�������ʾ����ʱҪ��Ŀ������λ�����ء�
+         * ��Ӧ��������5��������1�����ɳ����������������5�����ɳ�����̣�������죬Ĭ�ϼ���Ϊ3��
+         * 
+         * TRAJECT_CNT_LEN
+         * �������ȿ��Ʋ�������ʾ����ʱҪ��Ŀ������λ�����ء�
+         * ��Ӧ��������5��������1������Ҫ�󳤶��������������5������Ҫ�󳤶���̣�������죬Ĭ�ϼ���Ϊ3��
+         * 
+         * PREPROCESS
+         * ͼ��Ԥ�������Ʋ�����0 - ��������1 - ������Ĭ��Ϊ0��
+         * 
+         * CAMERA_ANGLE
+         * ������Ƕ���������� 0 - ��б�� 1 - ��ֱ��Ĭ��Ϊ0��
+         */
+
+        public enum PDC_PARAM_KEY
+        {
+            HUMAN_GENERATE_RATE = 50,  // Ŀ�������ٶ� ��50��ʼ
+            DETECT_SENSITIVE    = 51,  // ���������
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PDC_TARGET_INFO
+        {
+            public uint dwTargetID;                 // Ŀ��id 
+            public NET_VCA_RECT struTargetRect;    // Ŀ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;      // �����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PDC_TARGET_IN_FRAME
+        {
+            public byte byTargetNum;                   //Ŀ�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] yRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_TARGET_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_PDC_TARGET_INFO[]  struTargetInfo;   //Ŀ����Ϣ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;                  // �����ֽ�
+        }
+
+        //��֡ͳ�ƽ��ʱʹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct UNION_STATFRAME
+        {
+            public uint dwRelativeTime;     // ���ʱ��
+            public uint dwAbsTime;          // ����ʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 92, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct UNION_STATTIME
+        {
+            public NET_DVR_TIME tmStart; // ͳ����ʼʱ�� 
+            public NET_DVR_TIME tmEnd;  //  ͳ�ƽ���ʱ�� 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 92, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct UNION_PDCPARAM
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 140, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PDC_ALRAM_INFO
+        {
+            public uint dwSize;           // PDC�����������ϴ��ṹ���С
+            public byte byMode;            // 0 ��֡ͳ�ƽ�� 1��Сʱ���ͳ�ƽ��  
+            public byte byChannel;           // �����ϴ�ͨ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;         // �����ֽ�   
+            public NET_VCA_DEV_INFO struDevInfo;		        //ǰ���豸��Ϣ
+            public UNION_PDCPARAM uStatModeParam;
+            public uint dwLeaveNum;        // �뿪����
+            public uint dwEnterNum;        // ��������			
+            public byte byBrokenNetHttp;     //����������־λ��0-�����ش����ݣ�1-�ش�����
+            public byte byRes3;
+            public ushort wDevInfoIvmsChannelEx;     //��NET_VCA_DEV_INFO���byIvmsChannel������ͬ���ܱ�ʾ�����ֵ���Ͽͻ�����byIvmsChannel�ܼ������ݣ��������255���¿ͻ��˰汾��ʹ��wDevInfoIvmsChannelEx
+            public uint dwPassingNum;        // ��������������������ǻ�û�д������롢�뿪��������
+            public uint dwChildLeaveNum;        // С���뿪����
+            public uint dwChildEnterNum;        // ����������
+            public uint dwDuplicatePeople;        // �ظ�����
+            public uint dwXmlLen;//XML͸�����ݳ���, ��EventNotificationAlert XML Block�����ݳ���
+            public IntPtr pXmlBuf; // XML������Ϣָ��,��XML��Ӧ��EventNotificationAlert XML Block
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;           // �����ֽ�
+        }
+
+        //��������Ϣ��ѯ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PDC_QUERY
+        {
+            public NET_DVR_TIME tmStart;
+            public NET_DVR_TIME tmEnd;
+            public uint dwLeaveNum;
+            public uint dwEnterNum; 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 256, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PTZ_POSITION
+        {
+            // �Ƿ����ó����������ó�����Ϊ�����ʱ����ֶ���Ч������������������ó���λ����Ϣʱ��Ϊʹ��λ
+            public byte byEnable;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;  //����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byPtzPositionName; //���������
+            public NET_DVR_PTZPOS struPtzPos; //ptz ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 40, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_POSITION_RULE_CFG
+        {
+            public uint dwSize;             // �ṹ��С 
+            public NET_DVR_PTZ_POSITION    struPtzPosition;    // ����λ����Ϣ
+            public NET_VCA_RULECFG         struVcaRuleCfg;     //����������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 80, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;         // �����ֽ�
+        }
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_POSITION_RULE_CFG_V41
+        {
+            public uint dwSize;             // �ṹ��С 
+            public NET_DVR_PTZ_POSITION  struPtzPosition;    // ����λ����Ϣ
+            public NET_VCA_RULECFG_V41   struVcaRuleCfg;     //����������
+            public byte byTrackEnable; //�Ƿ�����
+            public byte byRes1;
+            public ushort wTrackDuration; //����ʱ�䣬��λs
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 76, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;         // �����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_LIMIT_ANGLE
+        {
+            public byte byEnable;	// �Ƿ����ó�����λ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_DVR_PTZPOS  struUp;     // ����λ
+            public NET_DVR_PTZPOS  struDown;   // ����λ
+            public NET_DVR_PTZPOS  struLeft;   // ����λ
+            public NET_DVR_PTZPOS  struRight;  // ����λ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_POSITION_INDEX
+        {
+            public byte byIndex;    // ��������
+            public byte byRes1;
+            public ushort wDwell;	// ͣ��ʱ�� 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;   // �����ֽ�
+        }
+
+        public const int MAX_POSITION_NUM = 10;
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_POSITION_TRACK_CFG
+        {
+            public uint dwSize;
+            public byte byNum; // ��������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_POSITION_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_POSITION_INDEX[]   struPositionIndex;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+        
+        //Ѳ��·��������Ϣ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PATROL_SCENE_INFO
+        {
+            public ushort wDwell;         // ͣ��ʱ�� 30-300
+            public byte byPositionID;   // ������1-10��Ĭ��0��ʾ��Ѳ���㲻���ӳ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 5, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //����Ѳ��������Ϣ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PATROL_TRACKCFG
+        {
+            public uint dwSize;  // �ṹ��С
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 10, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_PATROL_SCENE_INFO[] struPatrolSceneInfo;    // Ѳ��·��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;                              // �����ֽ�
+        }
+
+        //������ع���˵����ýṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_TRACK_PARAMCFG
+        {
+            public uint dwSize;             // �ṹ��С
+            public ushort wAlarmDelayTime;    // ������ʱʱ�䣬Ŀǰ���ֻ֧��ȫ������ ��Χ1-120��
+            public ushort wTrackHoldTime;     // ��������ʱ��  ��Χ0-300��
+            public byte byTrackMode;        //  ���� IPDOME_TRACK_MODE
+            public byte byPreDirection;	// ����Ԥ�� 0-������ 1-����
+            public byte byTrackSmooth;	    // ����  0-������ 1-����
+            public byte byZoomAdjust;	// ����ϵ������ �μ��±�
+            public byte byMaxTrackZoom;	//�����ϵ��,0-��ʾĬ�ϱ���ϵ��,�ȼ�6-�궨ֵ*1.0(Ĭ��),1-5Ϊ��С�궨ֵ��ֵԽС����С�ı���Խ��,7-15Ϊ�Ŵ�ֵԽ�󣬷Ŵ�ı���Խ��
+            public byte byStopTrackWhenFindFace;  //������⵽���Ƿ�ֹͣ 0-�� 1-��
+            public byte byStopTrackThreshold;   //��ֹ������ֵ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 9, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;          //  �����ֽ�                
+        }
+
+        //��������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DOME_MOVEMENT_PARAM
+        {
+            public ushort wMaxZoom;   // ��������ϵ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 42, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;  // �����ֽ�
+        }
+
+        /********************************���ܽ�ͨ�¼� begin****************************************/
+        public const int MAX_REGION_NUM	= 8;  // �����б������Ŀ
+        public const int MAX_TPS_RULE = 8;   // ������������Ŀ
+        public const int MAX_AID_RULE = 8;   // ����¼�������Ŀ
+        public const int MAX_LANE_NUM = 8;   // ��󳵵���Ŀ
+
+        //��ͨ�¼�����
+        public enum TRAFFIC_AID_TYPE
+        {
+            CONGESTION            = 0x01,    //ӵ��
+            PARKING               = 0x02,    //ͣ��  
+            INVERSE               = 0x04,    //����
+            PEDESTRIAN            = 0x08,    //����                      
+            DEBRIS                = 0x10,    //������ ��������Ƭ 
+            SMOKE                 = 0x20,    //����  
+	        OVERLINE              = 0x40,     //ѹ��
+	        VEHICLE_CONTROL_LIST  = 0x80,  //��ֹ��������
+	        SPEED                 = 0x100  //����
+        }
+        
+        public enum TRAFFIC_SCENE_MODE
+        {
+	        FREEWAY = 0,	//  ���ٻ��ⳡ��
+	        TUNNEL,         //  ������������
+	        BRIDGE          //  ������������
+        }
+        
+        public enum ITS_ABILITY_TYPE
+        {
+            ITS_CONGESTION_ABILITY             = 0x01,      //ӵ��
+            ITS_PARKING_ABILITY                = 0x02,      //ͣ��  
+            ITS_INVERSE_ABILITY                = 0x04,      //����
+            ITS_PEDESTRIAN_ABILITY             = 0x08,      //����                      
+            ITS_DEBRIS_ABILITY                 = 0x10,      //������ ��������Ƭ
+            ITS_SMOKE_ABILITY                  = 0x20,      //����-����
+            ITS_OVERLINE_ABILITY               = 0x40,      //ѹ��
+	        ITS_VEHICLE_CONTROL_LIST_ABILITY   = 0x80,		//��ֹ��������
+	        ITS_SPEED_ABILITY				   = 0x100,	    //����	
+            ITS_LANE_VOLUME_ABILITY            = 0x010000,  //��������
+            ITS_LANE_VELOCITY_ABILITY          = 0x020000,  //����ƽ���ٶ�
+            ITS_TIME_HEADWAY_ABILITY           = 0x040000,  //��ͷʱ��
+            ITS_SPACE_HEADWAY_ABILITY          = 0x080000,  //��ͷ���
+            ITS_TIME_OCCUPANCY_RATIO_ABILITY   = 0x100000,  //����ռ���ʣ���ʱ����)
+            ITS_SPACE_OCCUPANCY_RATIO_ABILITY  = 0x200000,  //����ռ���ʣ��ٷֱȼ��㣨�ռ���)
+            ITS_LANE_QUEUE_ABILITY             = 0x400000,  //�Ŷӳ���
+	        ITS_VEHICLE_TYPE_ABILITY           = 0x800000,  //��������
+	        ITS_TRAFFIC_STATE_ABILITY          = 0x1000000  //��ͨ״̬
+        }
+        
+        // ��ͨͳ�Ʋ���
+        public enum ITS_TPS_TYPE
+        {
+            LANE_VOLUME           = 0x01,    //��������
+            LANE_VELOCITY         = 0x02,    //�����ٶ�
+            TIME_HEADWAY          = 0x04,    //��ͷʱ��
+            SPACE_HEADWAY         = 0x08,    //��ͷ���
+            TIME_OCCUPANCY_RATIO  = 0x10,    //����ռ���� (ʱ����)
+            SPACE_OCCUPANCY_RATIO = 0x20,    //����ռ���ʣ��ٷֱȼ���(�ռ���)
+            QUEUE                 = 0x40,    //�Ŷӳ���
+	        VEHICLE_TYPE          = 0x80,    //��������
+	        TRAFFIC_STATE         = 0x100    //��ͨ״̬
+        }
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_REGION_LIST
+        {
+            public uint dwSize;	// �ṹ���С
+            public byte byNum;      // �������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;    // �����ֽ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_REGION_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_VCA_POLYGON[] struPolygon; // ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;	// �����ֽ�
+        }
+
+        //����ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DIRECTION
+        {
+            public NET_VCA_POINT struStartPoint;   // ������ʼ��
+            public NET_VCA_POINT struEndPoint;     // ��������� 
+        }
+
+        //��������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ONE_LANE
+        {
+            public byte byEnable;  //�����Ƿ�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 11, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;	   // �����ֽ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byLaneName;       // ������������
+            public NET_DVR_DIRECTION struFlowDirection;// �����ڳ�������
+            public NET_VCA_POLYGON struPolygon;		// ��������
+        }
+
+        //��������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_LANE_CFG
+        {
+            public uint dwSize;	// �ṹ���С
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_LANE_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_ONE_LANE[] struLane;	// �������� �����±���Ϊ����ID
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 40, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;	 // �����ֽ�
+        }
+
+        //��ͨ�¼�����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_AID_PARAM
+        {
+            public ushort wParkingDuration;       // Υͣ���������  10-120s
+            public ushort wPedestrianDuration;    // ���˳���ʱ��    1-120s
+            public ushort wDebrisDuration;        // ���������ʱ��  10-120s
+            public ushort wCongestionLength;      // ӵ�³�����ֵ    5-200���ף�
+            public ushort wCongestionDuration;    // ӵ�³�������    10-120s
+            public ushort wInverseDuration;       // ���г���ʱ��    1-10s
+            public ushort wInverseDistance;       // ���о�����ֵ ��λm ��Χ[2-100] Ĭ�� 10��
+            public ushort wInverseAngleTolerance; // �����Ƕ�ƫ�� 90-180��,���������������ļн�
+            public ushort wIllegalParkingTime;    // Υͣʱ��[4,60]����λ������ ,TFS(��ͨΥ��ȡ֤) ����ģʽ��
+            public ushort wIllegalParkingPicNum;  // ΥͣͼƬ����[1,6], TFS(��ͨΥ��ȡ֤) ����ģʽ��
+            public byte byMergePic;             // ͼƬƴ��,TFS ����ģʽ�� 0- ��ƴ�� 1- ƴ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 23, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;             // �����ֽ�
+        }
+
+        //������ͨ�¼�����ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ONE_AID_RULE
+        {   
+            public byte byEnable;                   // �Ƿ������¼�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;                  // �����ֽ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRuleName;       // �������� 
+            public uint dwEventType;                // ��ͨ�¼�������� TRAFFIC_AID_TYPE
+            public NET_VCA_SIZE_FILTER struSizeFilter; // �ߴ������
+            public NET_VCA_POLYGON     struPolygon;    // ��������
+            public NET_DVR_AID_PARAM   struAIDParam;   //  �¼�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT_2, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[]   struAlarmTime;//����ʱ��
+            public NET_DVR_HANDLEEXCEPTION_V30 struHandleType;	  //������ʽ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRelRecordChan;        //����������¼��ͨ��,Ϊ1��ʾ������ͨ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        //��ͨ�¼�����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_AID_RULECFG
+        {
+            public uint dwSize;                    // �ṹ���С 
+            public byte byPicProType;              //����ʱͼƬ������ʽ 0-������ ��0-�ϴ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;                 // �����ֽ�
+            public NET_DVR_JPEGPARA struPictureParam; //ͼƬ���ṹ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_AID_RULE, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_ONE_AID_RULE[]  struOneAIDRule;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        //������ͨ�¼�����ṹ��(��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ONE_AID_RULE_V41
+        {   
+            public byte byEnable;                 // �Ƿ������¼�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;                // �����ֽ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRuleName;     // �������� 
+            public uint dwEventType;              // ��ͨ�¼�������� TRAFFIC_AID_TYPE
+            public NET_VCA_SIZE_FILTER struSizeFilter;           // �ߴ������
+            public NET_VCA_POLYGON struPolygon;              // ��������
+            public NET_DVR_AID_PARAM struAIDParam;             // �¼�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[] struAlarmTime;// ����ʱ���
+            public NET_DVR_HANDLEEXCEPTION_V30 struHandleType;	          //������ʽ 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_IVMS_IP_CHANNEL, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRelRecordChan; //����������¼��ͨ����1��ʾ������ͨ����0��ʾ������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 60, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;               //����
+        }
+
+        //��ͨ�¼�����(��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_AID_RULECFG_V41
+        {
+            public uint dwSize;                     // �ṹ���С 
+            public byte byPicProType;               // ����ʱͼƬ������ʽ 0-������ ��0-�ϴ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;                  // �����ֽ�
+            public NET_DVR_JPEGPARA struPictureParam; 	// ͼƬ���ṹ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_AID_RULE, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_ONE_AID_RULE_V41[]  struAIDRule;  //��������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;                //����
+        }
+
+        //��ͨͳ�Ʋ����ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ONE_TPS_RULE
+        {
+            public byte byEnable;                   //�Ƿ�ʹ�ܳ�����ͨ�������
+            public byte byLaneID;		            //����ID
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public uint dwCalcType;                 //ͳ�Ʋ�������ITS_TPS_TYPE
+            public NET_VCA_SIZE_FILTER struSizeFilter; //�ߴ������ 
+            public NET_VCA_POLYGON struVitrualLoop;    //������Ȧ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT_2, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[] struAlarmTime;//����ʱ��
+            public NET_DVR_HANDLEEXCEPTION_V30 struHandleType;	//������ʽ,һ��Ϊ�����Ƿ��ϴ����ģ��������ܲ���Ҫ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;                         //�����ֽ�
+        }
+
+        //��ͨ����ͳ�ƹ������ýṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_TPS_RULECFG
+        {
+            public uint dwSize;              // �ṹ��С
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_TPS_RULE, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_ONE_TPS_RULE[] struOneTpsRule; // �±��Ӧ��ͨ����ID
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 40, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;         // �����ֽ�
+        }
+
+        //��ͨͳ�Ʋ����ṹ��(��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ONE_TPS_RULE_V41
+        {
+            public byte byEnable;                     //�Ƿ�ʹ�ܳ�����ͨ�������
+            public byte byLaneID;		              //����ID
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;                    //����
+            public uint dwCalcType;                   // ͳ�Ʋ�������ITS_TPS_TYPE
+            public NET_VCA_SIZE_FILTER  struSizeFilter;  //�ߴ������ 
+            public NET_VCA_POLYGON  struVitrualLoop; //������Ȧ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[]  struAlarmTime;//����ʱ��
+            public NET_DVR_HANDLEEXCEPTION_V30 struHandleType;	   //������ʽ 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 60, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;                   // �����ֽ�
+        }
+
+        //��ͨ����ͳ�ƹ������ýṹ��(��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_TPS_RULECFG_V41
+        {
+            public uint dwSize;         // �ṹ��С
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_TPS_RULE, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_ONE_TPS_RULE_V41[] struOneTpsRule; // �±��Ӧ��ͨ����ID
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;     // ����
+        }
+        
+        //ʵʱ��Ϣ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_TPS_PARAM
+        {
+            public byte byStart;          // ��ʼ��
+            public byte byCMD;         // ����ţ�01-����ָ�02-�뿪ָ�03-ӵ��״ָ̬��(Ϊ03ʱ��ֻ��byLaneState��byQueueLen��Ч)��04-����Ȧ״̬��Ϊ04ʱ��wLoopState��wStateMask��Ч����ʾbyLane�����϶����Ȧ�Ĺ���״̬��
+            public ushort wSpaceHeadway;        //��ͷ��࣬����������
+            public ushort wDeviceID;      // �豸ID
+            public ushort wDataLen;       // ���ݳ���
+            public byte byLane;         // ��Ӧ������
+            public byte bySpeed;        // ��Ӧ���٣�KM/H��
+            public byte byLaneState;     // ����״̬��0-��״̬��1-��ͨ��2-ӵ����3-����
+            public byte byQueueLen;       // ����״̬���Ŷӳ��ȣ�����50�ף�
+            public ushort wLoopState;         //��Ȧ״̬���ڼ�λ��ʾ������Ȧ״̬����Ȧ��ŴӾ�ͷ�ɽ���Զ��������״̬1-���0-�뿪
+            public ushort wStateMask;         //��Ȧ״̬���룬����λΪ1��ӦwLoopState״̬λ��Ч��Ϊ0��ʾ��Ч
+            public uint dwDownwardFlow;     //��ǰ���� ���ϵ��³�����
+            public uint dwUpwardFlow;       //��ǰ���� ���µ��ϳ�����
+            public byte byJamLevel;         //ӵ�µȼ�����byLaneStateΪ3ʱ��Ч��1-��ȣ�2-�жȣ�3-�ض�
+            public byte byVehicleDirection; //0-δ֪��1-���϶��£�2-���¶���
+            public byte byJamFlow;          //ӵ������������ÿ����һ�������ϱ�һ���ۼƳ�������Ϣ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 7, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;        //����
+            public ushort wTimeHeadway;        // ��ͷʱ�࣬�������
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_LLI_PARAM
+        {
+            public float fSec;//��[0.000000,60.000000]
+            public byte  byDegree;//��:�[0,90] ����[0,180]
+            public byte byMinute;//��[0,59]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 6, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_LLPOS_PARAM
+        {
+            public byte byLatitudeType;//γ�����ͣ�0-��γ��1-��γ
+            public byte byLongitudeType;//�������ͣ�0-������1-����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_DVR_LLI_PARAM struLatitude;    /*�*/
+            public NET_DVR_LLI_PARAM struLongitude; /*����*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //TPS������Ϣ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_TPS_ADDINFO
+        {
+            public NET_DVR_LLPOS_PARAM struLLPos;//���������һ�����ľ�γ��λ����Ϣ(byLaneState=3��byQueueLen>0ʱ�ŷ���)
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 1024, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //TPSʵʱ���������ϴ�
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_TPS_REAL_TIME_INFO
+        {
+            public uint dwSize;          // �ṹ���С
+            public uint dwChan;//ͨ����
+            public NET_DVR_TIME_V30 struTime;    //���ʱ��
+            public NET_DVR_TPS_PARAM struTPSRealTimeInfo;// ��ͨ����ͳ����Ϣ
+            public IntPtr pAddInfoBuffer;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+            /*������Ϣ��ʶ�����Ƿ���NET_DVR_TPS_ADDINFO�ṹ�壩,0-�޸�����Ϣ, 1-�и�����Ϣ��*/
+            public byte byAddInfoFlag;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 15, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;      // ����
+        }
+
+        //ͳ����Ϣ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_TPS_LANE_PARAM
+        {
+            public byte byLane;             // ��Ӧ������
+            public byte bySpeed;             // ��������ƽ���ٶ�
+            public ushort wArrivalFlow;        //��������
+            public uint dwLightVehicle;      // С�ͳ�����
+            public uint dwMidVehicle;        // ���ͳ�����
+            public uint dwHeavyVehicle;      // ���ͳ�����
+            public uint dwTimeHeadway;      // ��ͷʱ�࣬�������
+            public uint dwSpaceHeadway;     // ��ͷ��࣬����������
+            public float fSpaceOccupyRation; // �ռ�ռ���ʣ��ٷֱȼ���,������*1000
+            public float fTimeOccupyRation;  // ʱ��ռ���ʣ��ٷֱȼ���,������*1000
+            public byte byStoppingTimes; //ƽ��ͣ������
+            public byte byQueueLen;       // ����״̬���Ŷӳ��ȣ�����50�ף�
+            public byte byFlag;          //�ϴ���ʶ��0-��ʾT1ʱ���ͳ�ƽ��,1-��ʾT2ʱ���ͳ��
+            public byte byVehicelNum;         //��������
+            public ushort wDelay;         //ƽ������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 6, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;               // ����
+            public uint dwNonMotor;      // �ǻ���������
+        }
+
+        // ��ͨ����ͳ����Ϣ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_TPS_STATISTICS_PARAM
+        {
+            public byte byStart;          // ��ʼ��
+            public byte byCMD;         // ����ţ� 08-��ʱ��������ָ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;        // Ԥ���ֽ�
+            public ushort wDeviceID;      // �豸ID
+            public ushort wDataLen;       // ���ݳ���
+            public byte byTotalLaneNum;  // ����������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 15, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_DVR_TIME_V30 struStartTime;    //ͳ�ƿ�ʼʱ��
+            public uint dwSamplePeriod;    //ͳ��ʱ��,��λ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_TPS_RULE, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_TPS_LANE_PARAM[] struLaneParam;
+        }
+
+        //TPSͳ�ƹ��������ϴ�
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_TPS_STATISTICS_INFO
+        {
+            public uint dwSize;          // �ṹ���С
+            public uint dwChan;//ͨ����
+            public NET_DVR_TPS_STATISTICS_PARAM struTPSStatisticsInfo;// ��ͨ����ͳ����Ϣ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;      // ����
+        }
+
+        //��ͨ�¼���Ϣ
+        [StructLayout(LayoutKind.Sequential)]
+        public struct NET_DVR_AID_INFO
+        {
+            public byte byRuleID;                       // ������ţ�Ϊ�������ýṹ�±꣬0-16
+            public byte byVisibilityLevel;              // �ܼ��ȵȼ���0-������1-����~������2-����~������3-����~Ũ����4-Ũ��������
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)]
+            public byte[] byRes1;                       // �����ֽ�
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 32)]
+            public byte[] byRuleName;                   // ��������
+            public uint dwAIDType;                      // �����¼�����
+            public NET_DVR_DIRECTION struDirect;        // ����ָ������
+            public byte bySpeedLimit;                   // ����ֵ����λkm/h[0,255]
+            public byte byCurrentSpeed;                 // ��ǰ�ٶ�ֵ����λkm/h[0,255]
+            public byte byVehicleEnterState;            // ��������״̬ 0-��Ч 1-ʻ�� 2-ʻ��
+            public byte byState;                        // 0-�仯�ϴ���1-��Ѳ�ϴ���2-��ǰ�豸��ʱץ�ĵ������ϴ�
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)]
+            public byte[] byParkingID;                  // ͣ��λ���
+            public uint dwAIDTypeEx;                    // �����¼�������չ
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)]
+            public byte[] byRes2;                       // �����ֽ�
+        }
+
+        //��ͨ�¼����� 
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_AID_ALARM
+        {
+            public uint dwSize;         // �ṹ����
+            public uint dwRelativeTime;	// ���ʱ��
+            public uint dwAbsTime;		// ����ʱ��
+            public NET_VCA_DEV_INFO struDevInfo;	// ǰ���豸��Ϣ
+            public NET_DVR_AID_INFO struAIDInfo;    // ��ͨ�¼���Ϣ
+            public uint dwPicDataLen;   // ����ͼƬ�ij��� Ϊ0��ʾû��ͼƬ������0��ʾ�ýṹ�������ͼƬ����
+            public IntPtr pImage;        // ָ��ͼƬ��ָ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 40, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;      // �����ֽ�  
+        }
+        
+        //��ͨȡ֤����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_TFS_ALARM
+        {
+            public uint dwSize;                //�ṹ���С
+            public uint dwRelativeTime;        //���ʱ��
+            public uint dwAbsTime;               //����ʱ��
+            public uint dwIllegalType;         //Υ�����ͣ����ù��궨�壬��dwIllegalTypeֵΪ0xffffffffʱʹ��byIllegalCode
+            public uint dwIllegalDuration;     //Υ������ʱ�䣨��λ���룩 = ץ�����һ��ͼƬ��ʱ�� - ץ�ĵ�һ��ͼƬ��ʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MONITORSITE_ID_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byMonitoringSiteID;//��ʾ���ţ�·�ڱ�š��ڲ���ţ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = DEVICE_ID_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDeviceID;             //�豸���
+            public NET_VCA_DEV_INFO        struDevInfo;           //ǰ���豸��Ϣ
+            public NET_DVR_SCENE_INFO      struSceneInfo;         //������Ϣ
+            public NET_DVR_TIME_EX         struBeginRecTime;      //¼��ʼʱ�� 
+            public NET_DVR_TIME_EX         struEndRecTime;        //¼�����ʱ�� 
+            public NET_DVR_AID_INFO        struAIDInfo;           //��ͨ�¼���Ϣ
+            public NET_DVR_PLATE_INFO      struPlateInfo;         //������Ϣ
+            public NET_DVR_VEHICLE_INFO    struVehicleInfo;       //������Ϣ
+            public uint dwPicNum;              //ͼƬ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.Struct)]
+            public NET_ITS_PICTURE_INFO[]    struPicInfo;        //ͼƬ��Ϣ�����8�� 
+            public byte bySpecificVehicleType;     //���峵������  �ο�ʶ��������VTR_RESULT
+            public byte byLaneNo;  //����������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1; //����
+            public NET_DVR_TIME_V30        struTime;//�ֶ���λ����ǰʱ�䡣
+            public uint dwSerialNo;//��ţ�
+            public byte byVehicleAttribute;//�������ԣ���λ��ʾ��0- �޸�������(��ͨ��)��bit1- �Ʊ공(�������ı�־)��bit2- Σ��Ʒ������ֵ��0- ��1- ��
+            public byte byPilotSafebelt;//0-��ʾδ֪,1-ϵ��ȫ��,2-��ϵ��ȫ��
+            public byte byCopilotSafebelt;//0-��ʾδ֪,1-ϵ��ȫ��,2-��ϵ��ȫ��
+            public byte byPilotSunVisor;//0-��ʾδ֪,1-����������,2-��������
+            public byte byCopilotSunVisor;//0-��ʾδ֪, 1-����������,2-��������
+            public byte byPilotCall;// 0-��ʾδ֪, 1-����绰,2-��绰
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2; //����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = ILLEGAL_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byIllegalCode;//Υ��������չ����dwIllegalTypeֵΪ0xffffffff��ʹ�����ֵ
+            public ushort wCountry; // ��������ֵ,����ö��COUNTRY_INDEX
+            public byte byRegion; //��������ֵ,0-������1-ŷ��(Europe Region)��2-��������(Russian Region)��3-ŷ��&����˹(EU&CIS) , 4-�ж���Middle East����0xff-����
+            public byte byCrossLine;//�Ƿ�ѹ��ͣ�����෽ͣ������0-��ʾδ֪��1-��ѹ�ߣ�2-ѹ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = SERIAL_NO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byParkingSerialNO;//������
+            public byte byCrossSpaces;//�Ƿ�粴��λͣ�����෽ͣ������0-��ʾδ֪��1-δ�粴��λͣ����2-�粴��λͣ��
+            public byte byAngledParking;//�Ƿ���бͣ�����෽ͣ����, 0-��ʾδ֪��1-δ��бͣ����2-��бͣ��
+            public byte byAlarmValidity;//�������Ŷȣ��������ʻ��ʻ�������Ŷȣ���Χ0-100�����Ŷ�Խ�ߣ��¼���ʵ��Խ��
+            public byte byDoorsStatus;//����״̬ 0-���Źر� 1-���ſ���
+            public uint dwXmlLen;//XML������Ϣ����
+            public IntPtr pXmlBuf; // XML������Ϣָ��,��XML��Ӧ��EventNotificationAlert XML Block
+            //[MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            //public byte[] byRes3; //32λSDK��Ҫ�����ֽڶ���
+            public byte byVehicleHeadTailStatus;//��ͷ��β״̬ 0-���� 1-��ͷ 2-��β
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 31, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; //����
+    }
+
+        //�������нṹ�� 
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_LANE_QUEUE
+        {
+            public NET_VCA_POINT struHead;       //����ͷ
+            public NET_VCA_POINT struTail;       //����β
+            public uint dwLength;      //ʵ�ʶ��г��� ��λΪ�� [0-500]
+        }
+
+        public enum TRAFFIC_DATA_VARY_TYPE
+        {
+            NO_VARY,         //�ޱ仯 
+            VEHICLE_ENTER,   //��������������Ȧ
+            VEHICLE_LEAVE,   //�����뿪������Ȧ 
+            UEUE_VARY        //���б仯             
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_LANE_PARAM
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRuleName;  //������������ 
+            public byte byRuleID;              //������ţ�Ϊ�������ýṹ�±꣬0-7 
+            public byte byVaryType;            //������ͨ�����仯���� ���� TRAFFIC_DATA_VARY_TYPE
+            public byte byLaneType;			   //�����������
+            public byte byRes1;
+            public uint dwLaneVolume;         //�������� ��ͳ���ж��ٳ���ͨ��
+            public uint dwLaneVelocity;        //�����ٶȣ��������
+            public uint dwTimeHeadway;         //��ͷʱ�࣬�������
+            public uint dwSpaceHeadway;        //��ͷ��࣬����������
+            public float fSpaceOccupyRation;    //����ռ���ʣ��ٷֱȼ��㣨�ռ���)
+            public NET_DVR_LANE_QUEUE struLaneQueue;    //���������
+            public NET_VCA_POINT struRuleLocation; //��Ȧ��������ĵ�λ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_TPS_INFO
+        {
+            public uint dwLanNum;   // ��ͨ�����ij�����Ŀ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_TPS_RULE, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_LANE_PARAM[]  struLaneParam;
+        }
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_TPS_ALARM
+        {
+            public uint dwSize;          //�ṹ���С
+            public uint dwRelativeTime;  //���ʱ��
+            public uint dwAbsTime;       //����ʱ��
+            public NET_VCA_DEV_INFO  struDevInfo;     //ǰ���豸��Ϣ
+            public NET_DVR_TPS_INFO  struTPSInfo;     //��ͨ�¼���Ϣ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;      //�����ֽ�
+        }
+        
+        public enum TRAFFIC_DATA_VARY_TYPE_EX_ENUM
+        {    
+	        ENUM_TRAFFIC_VARY_NO             = 0x00,   //�ޱ仯
+	        ENUM_TRAFFIC_VARY_VEHICLE_ENTER  = 0x01,   //��������������Ȧ
+	        ENUM_TRAFFIC_VARY_VEHICLE_LEAVE  = 0x02,   //�����뿪������Ȧ
+	        ENUM_TRAFFIC_VARY_QUEUE          = 0x04,   //���б仯
+	        ENUM_TRAFFIC_VARY_STATISTIC      = 0x08,   //ͳ�����ݱ仯��ÿ���ӱ仯һ�ΰ���ƽ���ٶȣ������ռ�/ʱ��ռ���ʣ���ͨ״̬��        
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_LANE_PARAM_V41
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRuleName; // ������������
+            public byte byRuleID;             // ������ţ�Ϊ�������ýṹ�±꣬0-7 
+            public byte byLaneType;		     // �����������
+            public byte byTrafficState;       // �����Ľ�ͨ״̬��0-��Ч��1-��ͨ��2-ӵ����3-����
+            public byte byRes1;               // ����
+            public uint dwVaryType;           // ������ͨ�����仯���Ͳ���  TRAFFIC_DATA_VARY_TYPE_EX_ENUM����λ����
+            public uint dwTpsType;            // ���ݱ仯���ͱ�־����ʾ��ǰ�ϴ���ͳ�Ʋ����У���Щ������Ч������ITS_TPS_TYPE,��λ����
+            public uint dwLaneVolume;	     // ����������ͳ���ж��ٳ���ͨ��
+            public uint dwLaneVelocity;       // �����ٶȣ��������
+            public uint dwTimeHeadway ;       // ��ͷʱ�࣬�������
+            public uint dwSpaceHeadway;       // ��ͷ��࣬����������
+            public float fSpaceOccupyRation;   // ����ռ���ʣ��ٷֱȼ��㣨�ռ���)
+            public float fTimeOccupyRation;    // ʱ��ռ���ʣ��ٷֱȼ���
+            public uint dwLightVehicle;       // С�ͳ�����
+            public uint dwMidVehicle;         // ���ͳ�����
+            public uint dwHeavyVehicle;       // ���ͳ�����
+            public NET_DVR_LANE_QUEUE struLaneQueue;        // ���������
+            public NET_VCA_POINT struRuleLocation;     // ����λ��������Ȧ������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;           // ����
+        }
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_TPS_INFO_V41
+        {
+            public uint dwLanNum;          // ��ͨ�����ij�����Ŀ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_TPS_RULE, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_LANE_PARAM_V41[]  struLaneParam;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;         //����
+        }
+
+        //������������ 
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FACEDETECT_RULECFG
+        {
+            public uint dwSize;              // �ṹ���С
+            public byte byEnable;            // �Ƿ�����
+            public byte byEventType;			//�����¼����ͣ� 0-�쳣����; 1-��������;2-�쳣����&��������;
+            public byte byUpLastAlarm;       //2011-04-06 �Ƿ����ϴ����һ�εı���
+            public byte byUpFacePic; //�Ƿ��ϴ�������ͼ��0-��1-��	
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRuleName;
+            public NET_VCA_POLYGON     struVcaPolygon;    // ��������������
+            public byte byPicProType;	//����ʱͼƬ������ʽ 0-������ ��0-�ϴ�
+            public byte bySensitivity;   // ����������
+            public ushort wDuration;      // ������������ʱ����ֵ
+            public NET_DVR_JPEGPARA    struPictureParam; 		//ͼƬ���ṹ
+            public NET_VCA_SIZE_FILTER struSizeFilter;         //�ߴ������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT_2, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[] struAlarmTime;//����ʱ��
+            public NET_DVR_HANDLEEXCEPTION_V30 struHandleType;	  //������ʽ 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRelRecordChan;			//����������¼��ͨ��,Ϊ1��ʾ������ͨ��
+            public byte byPicRecordEnable;  /*2012-3-1�Ƿ�����ͼƬ�洢, 0-������, 1-����*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 39, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;         //�����ֽ�
+        }
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FACE_PIPCFG
+        {	
+            public byte byEnable; //�Ƿ������л�
+            public byte byBackChannel; //����ͨ���ţ����ͨ����
+            public byte byPosition; //����λ�ã�0-����,1-����,2-����,3-����
+            public byte byPIPDiv; //����ϵ��(��������:��廭��)��0-1:4,1-1:9,2-1:16
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FACEDETECT_RULECFG_V41
+        {
+            public uint dwSize;              // �ṹ���С
+            public byte byEnable;            // �Ƿ�����
+            public byte byEventType;			//�����¼����ͣ� 0-�쳣����; 1-��������;2-�쳣����&��������;
+            public byte byUpLastAlarm;       //2011-04-06 �Ƿ����ϴ����һ�εı���
+            public byte byUpFacePic; //�Ƿ��ϴ�������ͼ��0-��1-��	
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRuleName;
+            public NET_VCA_POLYGON struVcaPolygon;    // ��������������
+            public byte byPicProType;	//����ʱͼƬ������ʽ 0-������ ��0-�ϴ�
+            public byte bySensitivity;   // ����������
+            public ushort wDuration;      // ������������ʱ����ֵ
+            public NET_DVR_JPEGPARA    struPictureParam; 		//ͼƬ���ṹ
+            public NET_VCA_SIZE_FILTER struSizeFilter;         //�ߴ������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[]   struAlarmTime;//����ʱ��
+            public NET_DVR_HANDLEEXCEPTION_V30 struHandleType;	  //������ʽ 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRelRecordChan;			//����������¼��ͨ��,Ϊ1��ʾ������ͨ��
+            public byte byPicRecordEnable;  /*2012-10-22�Ƿ�����ͼƬ�洢, 0-������, 1-����*/
+            public byte byRes1;
+            public ushort wAlarmDelay; //2012-10-22���ܱ�����ʱ��0-5s,1-10,2-30s,3-60s,4-120s,5-300s,6-600s
+            public NET_DVR_FACE_PIPCFG struFacePIP; //2012-11-7�������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 28, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;         //�����ֽ�
+        }
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FACEDETECT_ALARM
+        {
+            public uint dwSize;     		// �ṹ��С
+            public uint dwRelativeTime; // ���ʱ��
+            public uint dwAbsTime;			// ����ʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRuleName;   // ��������
+            public NET_VCA_TARGET_INFO  struTargetInfo;	//����Ŀ����Ϣ
+            public NET_VCA_DEV_INFO  	 struDevInfo;		//ǰ���豸��Ϣ
+            public uint dwPicDataLen;						//����ͼƬ�ij��� Ϊ0��ʾû��ͼƬ������0��ʾ�ýṹ�������ͼƬ����*/
+            public byte byAlarmPicType;			// 0-�쳣��������ͼƬ 1- ����ͼƬ,2-�������� 
+            public byte byPanelChan;        /*2012-3-1����ͨ�����������ͨ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public uint dwFacePicDataLen;			//����ͼƬ�ij��� Ϊ0��ʾû��ͼƬ������0��ʾ�ýṹ�������ͼƬ����*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 48, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;              // �����ֽ�
+            public IntPtr pFaceImage; //ָ������ͼָ��
+            public IntPtr pImage;   						//ָ��ͼƬ��ָ��
+        }
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_EVENT_PARAM_UNION
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.U4)]
+            public uint[] uLen;        	// �������СΪ12�ֽ�
+            public uint dwHumanIn;  	//�����˽ӽ� 0 - ���� 1- ����  
+            public float fCrowdDensity;  // ��Ա�ۼ�ֵ
+        }
+
+        //Ŀǰֻ�����������¼�����Ա�ۼ��¼�ʵʱ�����ϴ�
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_EVENT_INFO
+        {
+            public byte byRuleID;				// Rule ID
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;				// �����ֽ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRuleName;	// ��������
+            public uint dwEventType;    		// ����VCA_EVENT_TYPE
+            public NET_DVR_EVENT_PARAM_UNION uEventParam;  // 
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_EVENT_INFO_LIST
+        {
+            public byte byNum;		// �¼�ʵʱ��Ϣ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;			// �����ֽ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_RULE_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_EVENT_INFO[] struEventInfo;	// �¼�ʵʱ��Ϣ
+        }
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_RULE_INFO_ALARM
+        {
+            public uint dwSize;				// �ṹ���С
+            public uint dwRelativeTime; 	// ���ʱ��
+            public uint dwAbsTime;			// ����ʱ��
+            public NET_VCA_DEV_INFO  	struDevInfo;		// ǰ���豸��Ϣ
+            public NET_DVR_EVENT_INFO_LIST struEventInfoList;	//�¼���Ϣ�б�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 40, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;			// �����ֽ�
+        }
+
+        //��������ʱ���
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ONE_SCENE_TIME
+        {
+            public byte byActive;                     //0 -��Ч,1�C��Ч
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;                    //����
+            public uint dwSceneID;                    //����ID
+            public NET_DVR_SCHEDTIME struEffectiveTime;   //������Чʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;                   //����
+        }
+
+        //������Чʱ�������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SCENE_TIME_CFG
+        {   
+            public uint dwSize;                                               //�ṹ��С
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_SCENE_TIMESEG_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_ONE_SCENE_TIME[] struSceneTime; //����ʱ�������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;                                            //����
+        }
+
+        //��������������Ϣ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ONE_SCENE_CFG
+        {    
+            public byte byEnable;                 //�Ƿ����øó���,0-������ 1- ����
+            public byte byDirection;              //��ʾ���� 1-���У�2-���У�3-˫��4-�ɶ�������5-�����򱱣�6-�����򶫣�7-�ɱ����ϣ�8-����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;                //����
+            public uint dwSceneID;                //����ID(ֻ��), 0 - ��ʾ�ó�����Ч
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] bySceneName;    //��������
+            public NET_DVR_PTZPOS struPtzPos;       //ptz ����
+            public uint dwTrackTime;              //���ʱ��[5,300] �룬TFS(��ͨȡ֤)ģʽ����Ч
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 24, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;               //����
+        }
+
+        //�������ýṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SCENE_CFG
+        {
+            public uint dwSize;                                          //�ṹ��С
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ITS_SCENE_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_ONE_SCENE_CFG[] struSceneCfg; //����������Ϣ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 40, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;                                      //����
+        }
+
+        //�ೡ����������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SCENE_COND
+        {
+            public uint dwSize;       //�ṹ��С
+            public Int32 lChannel;     //ͨ����
+            public uint dwSceneID;    //����ID, 0-��ʾ�ó�����Ч
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 48, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;    //����
+        }
+
+        //ȡ֤��ʽ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FORENSICS_MODE
+        {
+            public uint dwSize;      //�ṹ��С
+            public byte byMode;      // 0-�ֶ�ȡ֤ ,1-�Զ�ȡ֤
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 23, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;   //����
+        }
+
+        //����������Ϣ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SCENE_INFO
+        {  
+            public uint dwSceneID;              //����ID, 0 - ��ʾ�ó�����Ч
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] bySceneName;  //��������
+            public byte byDirection;            //��ʾ���� 1-���У�2-���У�3-˫��4-�ɶ�������5-�����򱱣�6-�����򶫣�7-�ɱ����ϣ�8-����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;              //����
+            public NET_DVR_PTZPOS  struPtzPos;             //Ptz ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2 ;            //����
+        }
+
+        //��ͨ�¼�����(��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_AID_ALARM_V41
+        {
+            public uint dwSize;              //�ṹ����
+            public uint dwRelativeTime;        //���ʱ��
+            public uint dwAbsTime;            //����ʱ��
+            public NET_VCA_DEV_INFO struDevInfo;            //ǰ���豸��Ϣ
+            public NET_DVR_AID_INFO struAIDInfo;         //��ͨ�¼���Ϣ
+            public NET_DVR_SCENE_INFO struSceneInfo;       //������Ϣ
+            public uint dwPicDataLen;        //ͼƬ����
+            public IntPtr pImage;             //ָ��ͼƬ��ָ��
+            // 0-����ֱ���ϴ�; 1-�ƴ洢������URL(3.7Ver)ԭ�ȵ�ͼƬ���ݱ��URL���ݣ�ͼƬ���ȱ��URL����
+            public byte byDataType;
+            public byte byLaneNo;  //���������� 
+            public ushort wMilliSecond;        //ʱ�����
+            //��ʾ���ţ�·�ڱ�š��ڲ���ţ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MONITORSITE_ID_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byMonitoringSiteID;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = DEVICE_ID_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDeviceID;//�豸���
+            public uint dwXmlLen;//XML������Ϣ����
+            public IntPtr pXmlBuf;// XML������Ϣָ��,��XML��Ӧ��EventNotificationAlert XML Block
+            public byte byTargetType;// ����Ŀ�����ͣ�0~δ֪��1~���ˡ�2~���ֳ���3~���ֳ�(���˼���з���)
+            public byte byRuleID;                       //����ID
+            public ushort wDevInfoIvmsChannelEx;        //��NET_VCA_DEV_INFO���byIvmsChannel������ͬ���ܱ�ʾ�����ֵ
+            public byte byBrokenNetHttp;                // ����������־λ
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 3)]
+            public byte[] byRes;                        // �����ֽ�
+            public uint dwPlateSmallPicDataLen;         //����СͼͼƬ����
+            public IntPtr pPlateSmallImage;             //ָ����Сͼ��ָ��
+        }
+
+        //��ͨͳ����Ϣ����(��չ)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_TPS_ALARM_V41
+        {
+            public uint dwSize;          // �ṹ���С
+            public uint dwRelativeTime;  // ���ʱ��
+            public uint dwAbsTime;       // ����ʱ��
+            public NET_VCA_DEV_INFO struDevInfo;     // ǰ���豸��Ϣ
+            public NET_DVR_TPS_INFO_V41  struTPSInfo;     // ��ͨ����ͳ����Ϣ 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;      // ����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VCA_VERSION
+        {
+            public ushort wMajorVersion;		// ���汾��
+            public ushort wMinorVersion;		// �ΰ汾��
+            public ushort wRevisionNumber;	// ������
+            public ushort wBuildNumber;		// �����
+            public ushort wVersionYear;		//	�汾����-��
+            public byte byVersionMonth;		//	�汾����-��
+            public byte byVersionDay;		//	�汾����-��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;			// �����ֽ�
+        }
+        /*******************************���ܽ�ͨ�¼� end*****************************************/
+
+        /******************************����ʶ�� begin******************************************/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PLATE_PARAM
+        {	
+            public byte byPlateRecoMode;    //����ʶ���ģʽ,Ĭ��Ϊ1(��Ƶ����ģʽ)
+            public byte byBelive;	/*�������Ŷ���ֵ, ֻ������Ƶʶ��ʽ, ���ݱ������ӳ̶�����, �󴥷��ʸ߾����, ©���ʸ߾����, 
+                                     * ������80-90����*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 22, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;          //�����ֽ�
+        }
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PLATECFG
+        {	
+            public uint dwSize;
+            public uint dwEnable;				           /* �Ƿ�������Ƶ����ʶ�� 0���� 1���� */
+            public byte byPicProType;	//����ʱͼƬ������ʽ 0-������ ��0-�ϴ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;  // �����ֽ�
+            public NET_DVR_JPEGPARA struPictureParam; 		//ͼƬ���ṹ
+            public NET_DVR_PLATE_PARAM struPlateParam;   // ����ʶ���������
+            public NET_DVR_HANDLEEXCEPTION struHandleType;	   /* ������ʽ */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[] struAlarmTime;//����ʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRelRecordChan;        //����������¼��ͨ��,Ϊ1��ʾ������ͨ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;   // �����ֽ�
+        }
+
+        //����ʶ�����ӽṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PLATE_INFO
+        {
+            public byte byPlateType; //��������
+            public byte byColor; //������ɫ
+            public byte byBright; //��������
+            public byte byLicenseLen;	//�����ַ�����
+            public byte byEntireBelieve;//�������Ƶ����Ŷȣ�0-100
+            public byte byRegion;                       // ��������ֵ 0-������1-ŷ��(EU)��2-��������(ER)��3-ŷ��&����˹(EU&CIS) ,4-�ж�(ME),0xff-����
+            public byte byCountry;                      // ��������ֵ������ö��COUNTRY_INDEX����֧��"COUNTRY_ALL = 0xff, //ALL  ȫ��"��
+            public byte byArea;                         //����ʡ�ݣ����������ڲ�����ö�٣����������� EMI_AREA
+            public byte byPlateSize;                    //���Ƴߴ磬0~δ֪��1~long, 2~short(�ж�����ʹ��)
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 15, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;                       //����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CATEGORY_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPlateCategory;//���Ƹ�����Ϣ, ���ж������г��ƺ����Աߵ�С����Ϣ��(Ŀǰֻ���ж�����֧��)
+            public uint dwXmlLen;                        //XML������Ϣ����
+            public IntPtr pXmlBuf;                      // XML������Ϣָ��,��������Ϊ COMM_ITS_PLATE_RESULʱ��Ч����XML��Ӧ��EventNotificationAlert XML Block
+            public NET_VCA_RECT	struPlateRect;	//�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_LICENSE_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sLicense;	//���ƺ��� 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_LICENSE_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byBelieve; //����ʶ���ַ������Ŷȣ����⵽����"��A12345", ���Ŷ�Ϊ,20,30,40,50,60,70�����ʾ"��"����ȷ�Ŀ�����ֻ��%��"A"�ֵ���ȷ�Ŀ�������%
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PLATERECO_RESULE
+        {
+            public uint dwSize;
+            public uint dwRelativeTime;	//���ʱ��
+            public uint dwAbsTime;	//����ʱ��
+            public NET_VCA_DEV_INFO struDevInfo; // ǰ���豸��Ϣ
+            public NET_DVR_PLATE_INFO struPlateInfo;
+            public uint dwPicDataLen;	//����ͼƬ�ij��� Ϊ0��ʾû��ͼƬ������0��ʾ�ýṹ�������ͼƬ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwRes;	//����������Ϊ0
+            public IntPtr pImage;   //ָ��ͼƬ��ָ��
+        }
+        /******************************����ʶ�� end******************************************/
+
+        /******************************ץ�Ļ�*******************************************/
+        //IO��������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IO_INCFG
+        {
+            public uint dwSize;
+            public byte byIoInStatus;//�����IO��״̬��0-�½��أ�1-�����أ�2-�����غ��½��أ�3-�ߵ�ƽ��4-�͵�ƽ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;//�����ֽ�
+        }
+
+        //IO�������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IO_OUTCFG
+        {
+            public uint dwSize;
+            public byte byDefaultStatus;//IOĬ��״̬��0-�͵�ƽ��1-�ߵ�ƽ 
+            public byte byIoOutStatus;//IO��Чʱ״̬��0-�͵�ƽ��1-�ߵ�ƽ��2-����
+            public ushort wAheadTime;//���IO��ǰʱ�䣬��λus
+            public uint dwTimePluse;//������ʱ�䣬��λus
+            public uint dwTimeDelay;//IO��Ч����ʱ�䣬��λus
+            public byte byFreqMulti;		//��Ƶ����ֵ��Χ[1,15]
+            public byte byDutyRate;		//ռ�ձȣ�[0,40%]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //���������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FLASH_OUTCFG
+        {
+            public uint dwSize;
+            public byte byMode;//�������˸ģʽ��0-������1-����2-��������3-����
+            public byte byRelatedIoIn;//����ƹ���������IO�ţ�������ʱ�˲�����Ч��
+            public byte byRecognizedLane;  /*������IO�ţ���λ��ʾ��bit0��ʾIO1�Ƿ������0-��������1-����*/
+            public byte byDetectBrightness;/*�Զ��������ʹ�������0-����⣻1-���*/
+            public byte byBrightnessThreld;/*ʹ�������������ֵ����Χ[0,100],������ֵ��*/
+            public byte byStartHour;		//��ʼʱ��-Сʱ,ȡֵ��Χ0-23
+            public byte byStartMinute;		//��ʼʱ��-��,ȡֵ��Χ0-59
+            public byte byEndHour;		 	//����ʱ��-Сʱ,ȡֵ��Χ0-23
+            public byte byEndMinute;		//����ʱ��-��,ȡֵ��Χ0-59
+            public byte byFlashLightEnable;	//���������ʱ��ʹ��:0-��;1-��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //���̵ƹ��ܣ�2��IO����һ�飩
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_LIGHTSNAPCFG
+        {
+            public uint dwSize;
+            public byte byLightIoIn;//���̵Ƶ�IO ��
+            public byte byTrigIoIn;//������IO��
+            public byte byRelatedDriveWay;//����IO�����ij�����
+            public byte byTrafficLight; //0-�ߵ�ƽ��ƣ��͵�ƽ�̵ƣ�1-�ߵ�ƽ�̵ƣ��͵�ƽ���
+            public byte bySnapTimes1; //���ץ�Ĵ���1��0-��ץ�ģ���0-���Ĵ��������5�� 
+            public byte bySnapTimes2; //�̵�ץ�Ĵ���2��0-��ץ�ģ���0-���Ĵ��������5�� 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_INTERVAL_NUM, ArraySubType = UnmanagedType.U2)]
+            public ushort[] wIntervalTime1;//������ļ��ʱ�䣬ms
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_INTERVAL_NUM, ArraySubType = UnmanagedType.U2)]
+            public ushort[] wIntervalTime2;//�̵����ļ��ʱ�䣬ms
+            public byte byRecord;//���������¼���־��0-��¼��1-¼��
+            public byte bySessionTimeout;//���������¼��ʱʱ�䣨�룩
+            public byte byPreRecordTime;//�����¼��Ƭ��Ԥ¼ʱ��(��)
+            public byte byVideoDelay;//�����¼��Ƭ����ʱʱ�䣨�룩
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;//�����ֽ�
+        }
+
+        //���ٹ���(2��IO����һ�飩
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MEASURESPEEDCFG
+        {
+            public uint dwSize;
+            public byte byTrigIo1;   //���ٵ�1��Ȧ
+            public byte byTrigIo2;   //���ٵ�2��Ȧ
+            public byte byRelatedDriveWay;//����IO�����ij�����
+            public byte byTestSpeedTimeOut;//����ģʽ��ʱʱ�䣬��λs
+            public uint dwDistance;//��Ȧ����,cm
+            public byte byCapSpeed;//����ģʽ�����ٶȣ���λkm/h
+            public byte bySpeedLimit;//����ֵ����λkm/h
+            public byte bySnapTimes1; //��Ȧ1ץ�Ĵ�����0-��ץ�ģ���0-���Ĵ��������5�� 
+            public byte bySnapTimes2; //��Ȧ2ץ�Ĵ�����0-��ץ�ģ���0-���Ĵ��������5�� 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_INTERVAL_NUM, ArraySubType = UnmanagedType.U2)]
+            public ushort[] wIntervalTime1;//��Ȧ1���ļ��ʱ�䣬ms
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_INTERVAL_NUM, ArraySubType = UnmanagedType.U2)]
+            public ushort[] wIntervalTime2;//��Ȧ2���ļ��ʱ�䣬ms
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;//�����ֽ�
+        }
+
+        //��Ƶ��������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VIDEOEFFECT
+        {
+            public byte byBrightnessLevel; /*0-100*/
+            public byte byContrastLevel; /*0-100*/
+            public byte bySharpnessLevel; /*0-100*/
+            public byte bySaturationLevel; /*0-100*/
+            public byte byHueLevel; /*0-100,��������*/
+            public byte byEnableFunc; //ʹ�ܣ���λ��ʾ��bit0-SMART IR(������)��bit1-���ն�,bit2-ǿ������ʹ�ܣ�0-��1-��
+            public byte byLightInhibitLevel; //ǿ�����Ƶȼ���[1-3]��ʾ�ȼ�
+            public byte byGrayLevel; //�Ҷ�ֵ��0-[0-255]��1-[16-235]
+        }
+
+        //��������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_GAIN
+        {
+            public byte byGainLevel; /*���棺0-100*/
+            public byte byGainUserSet; /*�û��Զ������棻0-100������ץ�Ļ�����CCDģʽ�µ�ץ������*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public uint dwMaxGainValue;/*�������ֵ����λdB*/
+        }
+
+        //��ƽ������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_WHITEBALANCE
+        {
+            public byte byWhiteBalanceMode; /*0-�ֶ���ƽ�⣨MWB��,1-�Զ���ƽ��1��AWB1��,2-�Զ���ƽ��2 (AWB2),3-�Զ����Ƹ���Ϊ������ƽ��(Locked WB)��
+	                         4-����(Indoor)��5-����(Outdoor)6-�չ��(Fluorescent Lamp)��7-�Ƶ�(Sodium Lamp)��
+	                         8-�Զ�(Auto-Track)9-һ�ΰ�ƽ��(One Push)��10-�����Զ�(Auto-Outdoor)��
+	                         11-�Ƶ��Զ� (Auto-Sodiumlight)��12-ˮ����(Mercury Lamp)��13-�Զ���ƽ��(Auto)��
+	                         14-�׳�� (IncandescentLamp)��15-ů���(Warm Light Lamp)��16-��Ȼ��(Natural Light) */
+            public byte byWhiteBalanceModeRGain; /*�ֶ���ƽ��ʱ��Ч���ֶ���ƽ�� R����*/
+            public byte byWhiteBalanceModeBGain; /*�ֶ���ƽ��ʱ��Ч���ֶ���ƽ�� B����*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 5, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //�ع����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_EXPOSURE
+        {
+            public byte byExposureMode; /*0 �ֶ��ع� 1�Զ��ع�*/
+            public byte byAutoApertureLevel; /* �Զ���Ȧ������, 0-10 */ 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public uint dwVideoExposureSet; /* �Զ�����Ƶ�ع�ʱ�䣨��λus��*//*ע:�Զ��ع�ʱ��ֵΪ�ع�����ֵ ����20-1s(1000000us)*/        
+            public uint dwExposureUserSet; /* �Զ����ع�ʱ��,��ץ�Ļ���Ӧ��ʱ��CCDģʽʱ��ץ�Ŀ����ٶ�*/   
+            public uint dwRes;    
+        }
+
+        //����̬����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_WDR
+        {
+            public byte byWDREnabled; /*����̬��0 dsibale  1 enable 2 auto*/
+            public byte byWDRLevel1; /*0-F*/
+            public byte byWDRLevel2; /*0-F*/
+            public byte byWDRContrastLevel; /*0-100*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //��ҹת����������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DAYNIGHT
+        {
+            public byte byDayNightFilterType; /*��ҹ�л���0-���죬1-ҹ����2-�Զ���3-��ʱ��4-�������봥��*/
+            public byte bySwitchScheduleEnabled; /*0 dsibale  1 enable,(����)*/
+            //��ʱģʽ����
+            public byte byBeginTime; /*��ʼʱ�䣨Сʱ����0-23*/
+            public byte byEndTime; /*����ʱ�䣨Сʱ����0-23*/
+            //ģʽ2
+            public byte byDayToNightFilterLevel; //0-7
+            public byte byNightToDayFilterLevel; //0-7
+            public byte byDayNightFilterTime;//(60��)
+            //��ʱģʽ����
+            public byte byBeginTimeMin; //��ʼʱ�䣨�֣���0-59
+            public byte byBeginTimeSec; //��ʼʱ�䣨�룩��0-59
+            public byte byEndTimeMin; //����ʱ�䣨�֣���0-59
+            public byte byEndTimeSec; //����ʱ�䣨�룩��0-59
+	        //�������봥��ģʽ����
+            public byte byAlarmTrigState; //�������봥��״̬��0-���죬1-ҹ��
+        }
+
+        //Gamma��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_GAMMACORRECT
+        {
+            public byte byGammaCorrectionEnabled; /*0 dsibale  1 enable*/
+            public byte byGammaCorrectionLevel; /*0-100*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 6, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //���ⲹ������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_BACKLIGHT
+        {
+            public byte byBacklightMode; /*���ⲹ��:0 off 1 UP��2 DOWN��3 LEFT��4 RIGHT��5MIDDLE��6�Զ���*/
+            public byte byBacklightLevel; /*0x0-0xF*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public uint dwPositionX1; //��X����1��
+            public uint dwPositionY1; //��Y����1��
+            public uint dwPositionX2; //��X����2��
+            public uint dwPositionY2; //��Y����2��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        //���ֽ��빦��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_NOISEREMOVE
+        {
+            public byte byDigitalNoiseRemoveEnable; /*0-�����ã�1-��ͨģʽ���ֽ��룬2-ר��ģʽ���ֽ���*/
+            public byte byDigitalNoiseRemoveLevel; /*��ͨģʽ���ֽ��뼶��0x0-0xF*/
+            public byte bySpectralLevel;       /*ר��ģʽ�¿���ǿ�ȣ�0-100*/
+            public byte byTemporalLevel;   /*ר��ģʽ��ʱ��ǿ�ȣ�0-100*/
+            public byte byDigitalNoiseRemove2DEnable;         /* ץ��֡2D���룬0-�����ã�1-���� */	
+            public byte byDigitalNoiseRemove2DLevel;            /* ץ��֡2D���뼶��0-100 */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //CMOSģʽ��ǰ�˾�ͷ����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CMOSMODECFG
+        {
+            public byte byCaptureMod;   //ץ��ģʽ��0-ץ��ģʽ1��1-ץ��ģʽ2
+            public byte byBrightnessGate;//������ֵ
+            public byte byCaptureGain1;   //ץ������1,0-100
+            public byte byCaptureGain2;   //ץ������2,0-100
+            public uint dwCaptureShutterSpeed1;//ץ�Ŀ����ٶ�1
+            public uint dwCaptureShutterSpeed2;//ץ�Ŀ����ٶ�2
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //ǰ�˲�������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CAMERAPARAMCFG
+        {
+            public uint dwSize;
+            public NET_DVR_VIDEOEFFECT struVideoEffect;/*���ȡ��Աȶȡ����Ͷȡ���ȡ�ɫ������*/    
+            public NET_DVR_GAIN struGain;/*�Զ�����*/
+            public NET_DVR_WHITEBALANCE struWhiteBalance;/*��ƽ��*/
+            public NET_DVR_EXPOSURE struExposure; /*�ع����*/
+            public NET_DVR_GAMMACORRECT struGammaCorrect;/*Gamma��*/
+            public NET_DVR_WDR struWdr;/*����̬*/
+            public NET_DVR_DAYNIGHT struDayNight;/*��ҹת��*/
+            public NET_DVR_BACKLIGHT struBackLight;/*���ⲹ��*/
+            public NET_DVR_NOISEREMOVE struNoiseRemove;/*���ֽ���*/
+            public byte byPowerLineFrequencyMode; /*0-50HZ; 1-60HZ*/
+            public byte byIrisMode; /*0 �Զ���Ȧ 1�ֶ���Ȧ*/    
+            public byte byMirror ;  /* ����0 off��1- leftright��2- updown��3-center */
+            public byte byDigitalZoom;  /*��������:0 dsibale  1 enable*/
+            public byte byDeadPixelDetect;   /*������,0 dsibale  1 enable*/
+            public byte byBlackPwl;/*�ڵ�ƽ���� ,  0-255*/ 
+            public byte byEptzGate;// EPTZ���ر���:0-�����õ�����̨��1-���õ�����̨
+            public byte byLocalOutputGate;//����������ر���0-��������ر�1-����BNC����� 2-HDMI����ر�  
+				     //20-HDMI_720P50�����
+					 //21-HDMI_720P60�����
+					 //22-HDMI_1080I60�����
+					 //23-HDMI_1080I50�����
+					 //24-HDMI_1080P24�����
+					 //25-HDMI_1080P25�����
+					 //26-HDMI_1080P30�����
+					 //27-HDMI_1080P50�����
+			         //28-HDMI_1080P60�����
+					 //40-SDI_720P50,
+					 //41-SDI_720P60,
+					 //42-SDI_1080I50,
+					 //43-SDI_1080I60,
+					 //44-SDI_1080P24,
+					 //45-SDI_1080P25,
+					 //46-SDI_1080P30,
+					 //47-SDI_1080P50,
+					 //48-SDI_1080P60
+            public byte byCoderOutputMode;//������fpga���ģʽ0ֱͨ3���ذ��
+            public byte byLineCoding; //�Ƿ����б��룺0-��1-��
+            public byte byDimmerMode; //����ģʽ��0-���Զ���1-�Զ�
+            public byte byPaletteMode; //��ɫ�壺0-���ȣ�1-���ȣ�2-��ɫ��2������8-��ɫ��8
+            public byte byEnhancedMode; //��ǿ��ʽ��̽�������ܱߣ���0-����ǿ��1-1��2-2��3-3��4-4
+            public byte byDynamicContrastEN;    //��̬�Աȶ���ǿ 0-1
+            public byte byDynamicContrast;    //��̬�Աȶ� 0-100
+            public byte byJPEGQuality;    //JPEGͼ������ 0-100
+            public NET_DVR_CMOSMODECFG struCmosModeCfg;//CMOSģʽ��ǰ�˲������ã���ͷģʽ����������ȡ
+            public byte byFilterSwitch; //�˲����أ�0-�����ã�1-����
+            public byte byFocusSpeed; //��ͷ�����ٶȣ�0-10
+            public byte byAutoCompensationInterval; //��ʱ�Զ����Ų�����1-120����λ������
+            public byte bySceneMode;  //����ģʽ��0-���⣬1-���ڣ�2-Ĭ�ϣ�3-����
+        }
+
+        //͸��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DEFOGCFG
+        {
+            public byte byMode; //ģʽ��0-�����ã�1-�Զ�ģʽ��2-����ģʽ
+            public byte byLevel; //�ȼ���0-100
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 6, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; 
+        }
+
+        //���ӷ���
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ELECTRONICSTABILIZATION
+        {
+            public byte byEnable;//ʹ�� 0- �����ã�1- ����
+            public byte byLevel; //�ȼ���0-100
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 6, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; 
+        }
+
+        //����ģʽ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CORRIDOR_MODE_CCD
+        {
+            public byte byEnableCorridorMode; //�Ƿ���������ģʽ 0�������ã� 1������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 11, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //SMART IR(������)����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SMARTIR_PARAM
+        {
+            public byte byMode;//0���ֶ���1���Զ�
+            public byte byIRDistance;//�������ȼ�(�ȼ�������������)level:1~100 Ĭ��:50���ֶ�ģʽ�����ӣ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //��byIrisMode ΪP-Iris1ʱ��Ч�����ú����Ȧ��С�ȼ�������ģʽ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PIRIS_PARAM
+        {
+            public byte byMode;//0-�Զ���1-�ֶ�
+            public byte byPIrisAperture;//�����Ȧ��С�ȼ�(�ȼ�,��Ȧ��С������)level:1~100 Ĭ��:50���ֶ�ģʽ�����ӣ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 6, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //ǰ�˲�������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CAMERAPARAMCFG_EX
+        {
+            public uint dwSize;
+            public NET_DVR_VIDEOEFFECT struVideoEffect;/*���ȡ��Աȶȡ����Ͷȡ���ȡ�ɫ������*/
+            public NET_DVR_GAIN struGain;/*�Զ�����*/
+            public NET_DVR_WHITEBALANCE struWhiteBalance;/*��ƽ��*/
+            public NET_DVR_EXPOSURE struExposure; /*�ع����*/
+            public NET_DVR_GAMMACORRECT struGammaCorrect;/*Gamma��*/
+            public NET_DVR_WDR struWdr;/*����̬*/
+            public NET_DVR_DAYNIGHT struDayNight;/*��ҹת��*/
+            public NET_DVR_BACKLIGHT struBackLight;/*���ⲹ��*/
+            public NET_DVR_NOISEREMOVE struNoiseRemove;/*���ֽ���*/
+            public byte byPowerLineFrequencyMode; /*0-50HZ; 1-60HZ*/
+            public byte byIrisMode; /*0-�Զ���Ȧ 1-�ֶ���Ȧ, 2-P-Iris1*/    
+            public byte byMirror ;  /* ����0 off��1- leftright��2- updown��3-center */
+            public byte byDigitalZoom;  /*��������:0 dsibale  1 enable*/
+            public byte byDeadPixelDetect;   /*������,0 dsibale  1 enable*/
+            public byte byBlackPwl;/*�ڵ�ƽ���� ,  0-255*/ 
+            public byte byEptzGate;// EPTZ���ر���:0-�����õ�����̨��1-���õ�����̨
+            public byte byLocalOutputGate;//����������ر���0-��������ر�1-����BNC����� 2-HDMI����ر�  
+	        //20-HDMI_720P50�����
+	        //21-HDMI_720P60�����
+	        //22-HDMI_1080I60�����
+	        //23-HDMI_1080I50�����
+	        //24-HDMI_1080P24�����
+	        //25-HDMI_1080P25�����
+	        //26-HDMI_1080P30�����
+	        //27-HDMI_1080P50�����
+	        //28-HDMI_1080P60�����
+            public byte byCoderOutputMode;//������fpga���ģʽ0ֱͨ3���ذ��
+            public byte byLineCoding; //�Ƿ����б��룺0-��1-��
+            public byte byDimmerMode; //����ģʽ��0-���Զ���1-�Զ�
+            public byte byPaletteMode; //��ɫ�壺0-���ȣ�1-���ȣ�2-��ɫ��2������8-��ɫ��8
+            public byte byEnhancedMode; //��ǿ��ʽ��̽�������ܱߣ���0-����ǿ��1-1��2-2��3-3��4-4
+            public byte byDynamicContrastEN;    //��̬�Աȶ���ǿ 0-1
+            public byte byDynamicContrast;    //��̬�Աȶ� 0-100
+            public byte byJPEGQuality;    //JPEGͼ������ 0-100
+            public NET_DVR_CMOSMODECFG struCmosModeCfg;//CMOSģʽ��ǰ�˲������ã���ͷģʽ����������ȡ
+            public byte byFilterSwitch; //�˲����أ�0-�����ã�1-����
+            public byte byFocusSpeed; //��ͷ�����ٶȣ�0-10
+            public byte byAutoCompensationInterval; //��ʱ�Զ����Ų�����1-120����λ������
+            public byte bySceneMode;  //����ģʽ��0-���⣬1-���ڣ�2-Ĭ�ϣ�3-����
+            public NET_DVR_DEFOGCFG struDefogCfg;//͸������
+            public NET_DVR_ELECTRONICSTABILIZATION struElectronicStabilization;//���ӷ���
+            public NET_DVR_CORRIDOR_MODE_CCD struCorridorMode;//����ģʽ
+            public byte byExposureSegmentEnable; //0~������,1~����  �ع�ʱ�������ʽ���״�����������ع����ϵ���ʱ��������ع�ʱ�䵽�м�ֵ��Ȼ��������浽�м�ֵ��������ع⵽���ֵ�����������浽���ֵ
+            public byte byBrightCompensate;//������ǿ [0~100]
+
+	        /*0-�رա�1-640*480@25fps��2-640*480@30ps��3-704*576@25fps��4-704*480@30fps��5-1280*720@25fps��6-1280*720@30fps��
+             * 7-1280*720@50fps��8-1280*720@60fps��9-1280*960@15fps��10-1280*960@25fps��11-1280*960@30fps��
+             * 12-1280*1024@25fps��13--1280*1024@30fps��14-1600*900@15fps��15-1600*1200@15fps��16-1920*1080@15fps��
+             * 17-1920*1080@25fps��18-1920*1080@30fps��19-1920*1080@50fps��20-1920*1080@60fps��21-2048*1536@15fps��22-2048*1536@20fps��
+             * 23-2048*1536@24fps��24-2048*1536@25fps��25-2048*1536@30fps��26-2560*2048@25fps��27-2560*2048@30fps��
+             * 28-2560*1920@7.5fps��29-3072*2048@25fps��30-3072*2048@30fps��31-2048*1536@12.5��32-2560*1920@6.25��
+             * 33-1600*1200@25��34-1600*1200@30��35-1600*1200@12.5��36-1600*900@12.5��37-1600@900@15��38-800*600@25��39-800*600@30*/
+            public byte byCaptureModeN; //��Ƶ����ģʽ��N�ƣ�
+            public byte byCaptureModeP; //��Ƶ����ģʽ��P�ƣ�
+            public NET_DVR_SMARTIR_PARAM struSmartIRParam; //����Ź���������Ϣ
+            public NET_DVR_PIRIS_PARAM struPIrisParam;//PIris������Ϣ��ӦbyIrisMode�ֶδ�2-PIris1��ʼ��Ч
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 296, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+        }
+
+        //������ɫ
+        public enum VCA_PLATE_COLOR
+        {
+            VCA_BLUE_PLATE = 0,//��ɫ����
+            VCA_YELLOW_PLATE,//��ɫ����
+            VCA_WHITE_PLATE,//��ɫ����
+            VCA_BLACK_PLATE,//��ɫ����
+            VCA_GREEN_PLATE //��ɫ����
+        }
+
+        //��������
+        public enum VCA_PLATE_TYPE
+        {
+            VCA_STANDARD92_PLATE = 0,//��׼���ó������ֳ�
+            VCA_STANDARD02_PLATE,//02ʽ���ó��� 
+            VCA_WJPOLICE_PLATE,//�侯�� 
+            VCA_JINGCHE_PLATE,//����
+            STANDARD92_BACK_PLATE,//���ó�˫��β��
+            VCA_SHIGUAN_PLATE,          //ʹ�ݳ���
+            VCA_NONGYONG_PLATE,         //ũ�ó�
+            VCA_MOTO_PLATE              //Ħ�г�
+        }
+
+        public enum VLR_VEHICLE_CLASS
+        {
+            VLR_OTHER       = 0,   //����
+	        VLR_VOLKSWAGEN = 1,    //����
+	        VLR_BUICK        = 2,  //���
+	        VLR_BMW         = 3,   //����
+	        VLR_HONDA       = 4,   //����
+	        VLR_PEUGEOT     = 5,   //����
+	        VLR_TOYOTA      = 6,   //����
+	        VLR_FORD         = 7,  //����
+	        VLR_NISSAN       = 8,  //�ղ�
+	        VLR_AUDI         = 9,  //�µ�
+	        VLR_MAZDA       = 10,  //���Դ�
+	        VLR_CHEVROLET  = 11,   //ѩ����
+	        VLR_CITROEN     = 12,  //ѩ����
+	        VLR_HYUNDAI    = 13,   //�ִ�
+	        VLR_CHERY       = 14   //����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VEHICLE_INFO
+        {
+            public uint dwIndex;
+            public byte byVehicleType;
+            public byte byColorDepth;
+            public byte byColor;
+            public byte byRadarState;
+            public ushort wSpeed;
+            public ushort wLength;
+            public byte byIllegalType;
+            public byte byVehicleLogoRecog; //�ο�ö������ VLR_VEHICLE_CLASS
+            public byte byVehicleSubLogoRecog; //����Ʒ��������ʶ�𣻲ο�VSB_VOLKSWAGEN_CLASS��������ö�١�
+            public byte byVehicleModel; //������Ʒ����0-δ֪���ο�"������Ʒ�����.xlsx"
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byCustomInfo;  //�Զ�����Ϣ
+            public ushort wVehicleLogoRecog;  //������Ʒ�ƣ��ο�"������Ʒ��.xlsx" (���ֶμ���byVehicleLogoRecog);
+            public byte byIsParking;//�Ƿ�ͣ�� 0-��Ч��1-ͣ����2-δͣ��
+            public byte byRes;//�����ֽ�
+            public uint dwParkingTime; //ͣ��ʱ�䣬��λ��s
+            public byte byBelieve; //byIllegalType���Ŷȣ�1-100
+            public byte byCurrentWorkerNumber;//��ǰ��ҵ����
+            public byte byCurrentGoodsLoadingRate;//��ǰ����װ���� 0-�� 1-�� 2-�� 3-�� 4-��
+            public byte byDoorsStatus;//����״̬ 0-���Źر� 1-���ſ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes3;
+
+            public void Init()
+            {
+                byCustomInfo = new byte[16];
+                byRes3 = new byte[4];
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PLATE_RESULT
+        {
+            public uint dwSize;
+            public byte byResultType;
+            public byte byChanIndex;
+            public ushort wAlarmRecordID;	//����¼��ID(���ڲ�ѯ¼�񣬽���byResultTypeΪ2ʱ��Ч)
+            public uint dwRelativeTime;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAbsTime;
+            public uint dwPicLen;
+            public uint dwPicPlateLen;
+            public uint dwVideoLen;
+            public byte byTrafficLight;
+            public byte byPicNum;
+            public byte byDriveChan;
+            public byte byVehicleType; //0- δ֪��1- �ͳ���2- ������3- �γ���4- �������5- С����
+            public uint dwBinPicLen;
+            public uint dwCarPicLen;
+            public uint dwFarCarPicLen;
+            public IntPtr pBuffer3;
+            public IntPtr pBuffer4;
+            public IntPtr pBuffer5;
+            public byte byRelaLaneDirectionType;
+            public byte byCarDirectionType; 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 6, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes3;
+            public NET_DVR_PLATE_INFO struPlateInfo;
+            public NET_DVR_VEHICLE_INFO struVehicleInfo;
+            public IntPtr pBuffer1;
+            public IntPtr pBuffer2;
+
+            public void Init()
+            {
+                byAbsTime = new byte[32];
+                byRes3 = new byte[6];
+            }
+        }
+
+        //ͼ�������Ϣ����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IMAGEOVERLAYCFG
+        {
+            public uint dwSize;
+            public byte byOverlayInfo;//����ʹ�ܿ��أ�0-�����ӣ�1-����
+            public byte byOverlayMonitorInfo;//�Ƿ������ʾ����Ϣ��0-�����ӣ�1-����
+            public byte byOverlayTime;//�Ƿ����ʱ�䣬0-�����ӣ�1-����
+            public byte byOverlaySpeed;//�Ƿ�����ٶȣ�0-�����ӣ�1-����
+            public byte byOverlaySpeeding;//�Ƿ���ӳ��ٱ�����0-�����ӣ�1-����
+            public byte byOverlayLimitFlag;//�Ƿ�������ٱ�־��0-�����ӣ�1-����
+            public byte byOverlayPlate;//�Ƿ���ӳ��ƺţ�0-�����ӣ�1-����
+            public byte byOverlayColor;//�Ƿ���ӳ�����ɫ��0-�����ӣ�1-����
+            public byte byOverlayLength;//�Ƿ���ӳ�����0-�����ӣ�1-����
+            public byte byOverlayType;//�Ƿ���ӳ��ͣ�0-�����ӣ�1-����
+            public byte byOverlayColorDepth;//�Ƿ���ӳ�����ɫ��dz��0-�����ӣ�1-����
+            public byte byOverlayDriveChan;//�Ƿ���ӳ�����0-�����ӣ�1-����
+            public byte byOverlayMilliSec; //���Ӻ�����Ϣ 0-�����ӣ�1-����
+            public byte byOverlayIllegalInfo; //����Υ����Ϣ 0-�����ӣ�1-����
+            public byte byOverlayRedOnTime;  //���Ӻ������ʱ�� 0-�����ӣ�1-����
+            public byte byFarAddPlateJpeg;      //Զ��ͼ�Ƿ���ӳ��ƽ�ͼ,0-������,1-����
+            public byte byNearAddPlateJpeg;      //����ͼ�Ƿ���ӳ��ƽ�ͼ,0-������,1-����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;    //����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byMonitorInfo1;    //��ʾ����Ϣ1
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 44, ArraySubType = UnmanagedType.I1)]
+            public byte[] byMonitorInfo2; //������Ϣ2
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 52, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2; //����
+        }
+
+
+
+        public struct NET_DVR_FACELIB_GUARD_COND
+        {
+            public uint dwSize;
+            public uint dwChannel;  //ͨ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 68, ArraySubType = UnmanagedType.I1)]
+            public byte[] szFDID;//�������ID
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+
+        public struct NET_DVR_EVENT_SCHEDULE
+        {
+            public uint dwSize;//�ṹ���С
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[] struAlarmTime; /*����ʱ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[] struHolidayAlarmTime; /*���ղ���ʱ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] bySceneID;//������,Ŀǰ֧��1~4������0Ϊ��Ч���ó������벼��ʱ����ÿ��ʱ���һһ��Ӧ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 72, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SNAPCFG
+        {
+            public uint dwSize;
+            public byte byRelatedDriveWay;
+            public byte bySnapTimes;
+            public ushort wSnapWaitTime;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_INTERVAL_NUM, ArraySubType = UnmanagedType.U2)]
+            public ushort[] wIntervalTime;
+            public uint dwSnapVehicleNum; //ץ�ij�����š�
+            public NET_DVR_JPEGPARA  struJpegPara;//ץ��ͼƬ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        public enum ITC_MAINMODE_ABILITY
+        {
+            ITC_MODE_UNKNOW = 0x0,   //��
+	        ITC_POST_MODE   = 0x1,  //����ģʽ
+	        ITC_EPOLICE_MODE      = 0x2,  //�羯ģʽ
+	        ITC_POSTEPOLICE_MODE  = 0x4  //��ʽ�羯ģʽ
+        }
+
+        public enum ITC_RECOG_REGION_TYPE
+        {
+            ITC_REGION_RECT    = 0x0,   //����
+	        ITC_REGION_POLYGON  = 0x1,  //�����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SNAP_ABILITY
+        {
+            public uint dwSize;
+            public byte byIoInNum;//IO�������
+            public byte byIoOutNum;//IO�������
+            public byte bySingleSnapNum;//��IO��������
+            public byte byLightModeArrayNum;//���̵�ģʽ����
+            public byte byMeasureModeArrayNum;//����ģʽ����
+            public byte byPlateEnable; //����ʶ������
+            public byte byLensMode;//��ͷģʽ0-CCD,1-CMOS
+            public byte byPreTriggerSupport; //�Ƿ�֧��ԭ����ģʽ��0-֧�֣�1-��֧��
+            public uint dwAbilityType; //֧�ֵĴ���ģʽ��������λ��ʾ�������ITC_MAINMODE_ABILITY
+            public byte byIoSpeedGroup; //֧�ֵ�IO��������
+            public byte byIoLightGroup; //֧�ֵ�IO���̵�����
+            public byte byRecogRegionType; //��ʶ����֧�ֵ����ͣ��������ITC_RECOG_REGION_TYPE
+            public byte bySupport; //�豸��������λ��ʾ��0-��֧�֣�1-֧��
+	        // bySupport&0x1����ʾ�Ƿ�֧����չ���ַ���������
+	        // bySupport&0x2����ʾ�Ƿ�֧����չ��Уʱ���ýṹ
+	        // bySupport&0x4, ��ʾ�Ƿ�֧�ֶ�����(��������)
+	        // bySupport&0x8, ��ʾ�Ƿ�֧��������bonding����(�����ݴ�)
+	        // bySupport&0x10, ��ʾ�Ƿ�֧�������Խ�
+	        //2013-07-09 ����������
+            public ushort wSupportMultiRadar;// �豸��������λ��ʾ��0-��֧�֣�1-֧��
+	        // wSupportMultiRadar&0x1����ʾ ����RS485�״� ֧�ֳ��������״ﴦ��
+	        // wSupportMultiRadar&0x2����ʾ ����������Ȧ ֧�ֳ��������״ﴦ��
+	        // wSupportMultiRadar&0x4����ʾ ���п��� ֧�ֳ��������״ﴦ��
+	        // wSupportMultiRadar&0x8����ʾ ��Ƶ��� ֧�ֳ��������״ﴦ��
+            public byte byICRPresetNum;
+	        // ��ʾ֧�ֵ�ICRԤ�õ㣨�˹�Ƭƫ�Ƶ㣩��
+            public byte byICRTimeSlot;//��ʾ֧�ֵ�ICR��ʱ�������1��8��
+            public byte bySupportRS485Num;//��ʾ֧�ֵ�RS485�ڵ�����
+            public byte byExpandRs485SupportSensor;// �豸��������λ��ʾ��0-��֧�֣�1-֧��
+	        // byExpandRs485SupportSensor &0x1����ʾ�羯������֧�ֳ�����
+	        // byExpandRs485SupportSensor &0x2����ʾ��ʽ�羯������֧�ֳ�����
+            public byte byExpandRs485SupportSignalLampDet;// �豸��������λ��ʾ��0-��֧�֣�1-֧��
+	        // byExpandRs485SupportSignalLampDet &0x1����ʾ�羯������֧������źŵƼ����
+            // byExpandRs485SupportSignalLampDet &0x2����ʾ��ʽ�羯������֧������źŵƼ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 13, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_ITC_ICRTIMECFG
+        {
+            public NET_DVR_SCHEDTIME  struTime;
+            public byte byAssociateRresetNo;//Ԥ�õ��1��8 , 0������
+            public byte bySubSwitchMode;//1~���죬2~���� (��Ԥ�õ����0 ��ʱ����Ч)
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 10, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_ITC_ICR_TIMESWITCH_PARAM
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_ITC_ICRTIMECFG[] struAutoCtrlTime;//�Զ��л�ʱ��� (�Զ��л��� ʱ������Ч ����֧��4�飬Ԥ��4��)
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ICR_NUM, ArraySubType = UnmanagedType.I1)]
+            public byte[] byICRPreset; //ʵ����Ч������������̬��ʾ [0~100] �����±��ʾԤ�õ��1��8 ��0��7 ���Ӧ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_ITC_ICR_MANUALSWITCH_PARAM
+        {	
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ICR_NUM, ArraySubType = UnmanagedType.I1)]
+            public byte[] byICRPreset; //ʵ����Ч������������̬��ʾ [0~100]
+            public byte  bySubSwitchMode;//1~���죬2~����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 147, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_ITC_ICR_AOTOSWITCH_PARAM
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ICR_NUM, ArraySubType = UnmanagedType.I1)]
+            public byte[] byICRPreset; //ʵ����Ч������������̬��ʾ [0~100] �����±��ʾԤ�õ��1��8 ��0��7 ���Ӧ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 148, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_ITC_ICR_PARAM_UNION
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 156, ArraySubType = UnmanagedType.I1)]
+            public byte[] uLen;
+            public NET_ITC_ICR_AOTOSWITCH_PARAM struICRAutoSwitch;
+            public NET_ITC_ICR_MANUALSWITCH_PARAM struICRManualSwitch;
+            public NET_ITC_ICR_TIMESWITCH_PARAM struICRTimeSwitch;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_ITC_ICRCFG
+        {
+            public uint dwSize;
+            public byte bySwitchType;//1~�Զ��л���2~�ֶ��л� ,3~��ʱ�л� 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public NET_ITC_ICR_PARAM_UNION uICRParam;
+        }
+
+        //2013-07-09 �쳣����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_ITC_HANDLEEXCEPTION
+        {
+            public uint dwHandleType; //�쳣����,�쳣������ʽ��"��"���
+	        /*0x00: ����Ӧ*/
+	        /*0x01: ��ʾ���Ͼ���*/
+	        /*0x02: ��������*/
+	        /*0x04: �ϴ�����*/
+	        /*0x08: ��������������̵��������*/
+	        /*0x10: ����JPRGץͼ���ϴ�Email*/
+	        /*0x20: �������ⱨ��������*/
+	        /*0x40: �������ӵ�ͼ(Ŀǰֻ��PCNVR֧��)*/
+	        /*0x200: ץͼ���ϴ�FTP*/  
+            public byte byEnable; //0�������ã�1������
+            public byte byRes;
+            public ushort wDuration;//����ʱ��(��λ/s)
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ITC_EXCEPTIONOUT, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAlarmOutTriggered;//�������ͨ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_ITC_EXCEPTION
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_EXCEPTIONNUM_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_ITC_HANDLEEXCEPTION[] struSnapExceptionType; 
+            //�����ÿ��Ԫ�ض���ʾһ���쳣������0- Ӳ�̳���,1-���߶�,2-IP ��ַ��ͻ, 3-�������쳣, 4-�źŵƼ�����쳣
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_TRIGCOORDINATE
+        {
+            public ushort wTopLeftX; /*��Ȧ���ϽǺ����꣨2���ֽڣ�*/
+            public ushort wTopLeftY; /*��Ȧ���Ͻ������꣨2���ֽڣ�*/
+            public ushort wWdith; /*��Ȧ���ȣ�2���ֽڣ�*/
+            public ushort wHeight; /*��Ȧ�߶ȣ�2���ֽڣ�*/
+        }
+
+        public enum PROVINCE_CITY_IDX
+        {
+	        ANHUI_PROVINCE             = 0,              //����
+	        AOMEN_CHINA_PROVINCE       = 1,              //���ţ��й���
+	        BEIJING_PROVINCE           = 2,              //����
+	        CHONGQING_PROVINCE         = 3,              //����
+	        FUJIAN_PROVINCE            = 4,              //����
+	        GANSU_PROVINCE             = 5,              //����
+	        GUANGDONG_PROVINCE         = 6,              //�㶫
+	        GUANGXI_PROVINCE           = 7,              //����
+	        GUIZHOU_PROVINCE           = 8,              //����
+	        HAINAN_PROVINCE            = 9,              //����
+	        HEBEI_PROVINCE             = 10,             //�ӱ�
+	        HENAN_PROVINCE             = 11,             //����
+	        HEILONGJIANG_PROVINCE      = 12,             //������
+	        HUBEI_PROVINCE             = 13,             //����
+	        HUNAN_PROVINCE             = 14,             //����
+	        JILIN_PROVINCE             = 15,             //����
+	        JIANGSU_PROVINCE           = 16,             //����
+	        JIANGXI_PROVINCE           = 17,             //����
+	        LIAONING_PROVINCE          = 18,             //����
+	        NEIMENGGU_PROVINCE         = 19,             //���ɹ�
+	        NINGXIA_PROVINCE           = 20,             //����
+	        QINGHAI_PROVINCE           = 21,             //�ຣ
+	        SHANDONG_PROVINCE          = 22,             //ɽ��
+	        SHANXI_JIN_PROVINCE        = 23,             //ɽ��
+	        SHANXI_SHAN_PROVINCE       = 24,             //����
+	        SHANGHAI_PROVINCE          = 25,             //�Ϻ�
+	        SICHUAN_PROVINCE           = 26,             //�Ĵ�
+	        TAIWAN_CHINA_PROVINCE      = 27,             //̨�壨�й���
+	        TIANJIN_PROVINCE           = 28,             //���
+	        XIZANG_PROVINCE            = 29,             //����
+	        XIANGGANG_CHINA_PROVINCE   = 30,             //��ۣ��й���
+	        XINJIANG_PROVINCE          = 31,             //�½�
+	        YUNNAN_PROVINCE            = 32,             //����
+	        ZHEJIANG_PROVINCE          = 33              //�㽭
+        }
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_GEOGLOCATION
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.U4)]
+            public int[] iRes; /*����*/
+            public uint dwCity; /*�������PROVINCE_CITY_IDX */
+        }
+
+        //����ģʽ
+        public enum SCENE_MODE
+        {
+	        UNKOWN_SCENE_MODE   = 0,            //δ֪����ģʽ
+	        HIGHWAY_SCENE_MODE  = 1,            //���ٳ���ģʽ
+	        SUBURBAN_SCENE_MODE = 2,            //��������ģʽ(����)
+	        URBAN_SCENE_MODE    = 3,            //��������ģʽ
+	        TUNNEL_SCENE_MODE   = 4             //��������ģʽ(����)
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VTPARAM
+        {
+            public uint dwSize;
+            public byte byEnable;  /* �Ƿ�ʹ��������Ȧ��0-��ʹ�ã�1-ʹ��*/
+            public byte byIsDisplay; /* �Ƿ���ʾ������Ȧ��0-����ʾ��1-��ʾ*/
+            public byte byLoopPos; //���䴥����Ȧ��ƫ��0-���ϣ�1-����
+            public byte bySnapGain; /*ץ������*/
+            public uint dwSnapShutter; /*ץ�Ŀ����ٶ�*/
+            public NET_DVR_TRIGCOORDINATE struTrigCoordinate; //����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_VL_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_TRIGCOORDINATE[] struRes;
+            public byte byTotalLaneNum;/*��Ƶ�����ij�����1*/
+            public byte byPolarLenType; /*ƫ�����ͣ�0������ƫ�񾵣�1����ʩ�͵�ƫ�񾵡�*/
+            public byte	byDayAuxLightMode; /*���츨������ģʽ��0���޸���������1��LED��������2�����������*/
+            public byte	byLoopToCalRoadBright; /*���Լ���·�����ȵij���(������Ȧ)*/
+            public byte	byRoadGrayLowTh; /*·�����ȵ���ֵ��ʼ��ֵ1*/
+            public byte	byRoadGrayHighTh; /*·�����ȸ���ֵ��ʼ��ֵ140*/
+            public ushort wLoopPosBias; /*���䴥����Ȧλ��30*/
+            public uint dwHfrShtterInitValue; /*����ͼ���ع�ʱ��ij�ʼֵ2000*/
+            public uint dwSnapShtterInitValue; /*ץ��ͼ���ع�ʱ��ij�ʼֵ500*/
+            public uint dwHfrShtterMaxValue; /*����ͼ���ع�ʱ������ֵ20000*/
+            public uint dwSnapShtterMaxValue; /*ץ��ͼ���ع�ʱ������ֵ1500*/
+            public uint dwHfrShtterNightValue; /*��������ͼ���ع�ʱ�������ֵ3000*/
+            public uint dwSnapShtterNightMinValue; /*����ץ��ͼ���ع�ʱ�����Сֵ3000*/
+            public uint dwSnapShtterNightMaxValue; /*����ץ��ͼ���ع�ʱ������ֵ5000*/
+            public uint dwInitAfe; /*����ij�ʼֵ200*/
+            public uint dwMaxAfe; /*��������ֵ400*/
+            public ushort wResolutionX;/* �豸��ǰ�ֱ��ʿ�*/
+            public ushort wResolutionY;/* �豸��ǰ�ֱ��ʸ�*/
+            public uint dwGainNightValue; /*�������棬Ĭ��ֵ70*/
+            public uint dwSceneMode; /*����ģʽ�� ���SCENE_MODE */
+            public uint dwRecordMode; /*¼���־��0-��¼��1-¼��*/
+            public NET_DVR_GEOGLOCATION struGeogLocation; /*��ַλ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_VL_NUM, ArraySubType = UnmanagedType.I1)]
+            public byte[] byTrigFlag; /*������־��0-��ͷ������1-��β������2-��ͷ/��β������*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_VL_NUM, ArraySubType = UnmanagedType.I1)]
+            public byte[] byTrigSensitive;  /*���������ȣ�1-100*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 62, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SNAPENABLECFG
+        {
+            public uint dwSize;
+            public byte byPlateEnable;//�Ƿ�֧�ֳ���ʶ��0-��֧�֣�1-֧��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;   //����
+            public byte byFrameFlip;   //ͼ���Ƿ�ת 0-����ת��1-��ת
+            public ushort wFlipAngle;    //ͼ��ת�Ƕ� 0,90,180,270
+            public ushort wLightPhase;   //��λ��ȡֵ��Χ[0, 360]
+            public byte byLightSyncPower;  //�Ƿ��źŵƵ�Դͬ����0-��ͬ����1-ͬ��
+            public byte byFrequency;		//�ź�Ƶ��
+            public byte byUploadSDEnable;  //�Ƿ��Զ��ϴ�SDͼƬ��0-��1-��
+            public byte byPlateMode; //ʶ��ģʽ����:0-��Ƶ����,1-�ⲿ����
+            public byte byUploadInfoFTP; //�Ƿ��ϴ�ץ�ĸ�����Ϣ��FTP��0-��1-��
+            public byte byAutoFormatSD; //�Ƿ��Զ���ʽ��SD����0-��1-��
+            public ushort wJpegPicSize; //JpegͼƬ��С[64-8196]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 56, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; //����
+        }
+
+
+
+        /*ftp�ϴ�����*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FTPCFG
+        {
+            public uint dwSize;
+            public uint dwEnableFTP;			/*�Ƿ�����ftp�ϴ�����*/
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string sFTPIP;				/*ftp ������*/
+            public uint dwFTPPort;				/*ftp�˿�*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUserName;	/*�û���*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassword;	/*����*/
+            public uint dwDirLevel;	/*0 = ��ʹ��Ŀ¼�ṹ��ֱ�ӱ����ڸ�Ŀ¼,1 = ʹ��1��Ŀ¼,2=ʹ��2��Ŀ¼*/
+            public ushort wTopDirMode;	/* һ��Ŀ¼��0x1 = ʹ���豸��,0x2 = ʹ���豸��,0x3 = ʹ���豸ip��ַ��0x4=ʹ����ʾ��,0x5=ʹ��ʱ��(����),0x=6�Զ���,0x7=Υ������,0x8=����,0x9=�ص�*/
+            public ushort wSubDirMode;	/* ����Ŀ¼��0x1 = ʹ��ͨ����,0x2 = ʹ��ͨ���ţ�,0x3=ʹ��ʱ��(������),0x4=ʹ�ó�����,0x=5�Զ���,0x6=Υ������,0x7=����,0x8=�ص�*/
+            public byte byEnableAnony; //����������0-��1-��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 23, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        /*����������ͼƬ�����Ԫ�� */
+        public const int PICNAME_ITEM_DEV_NAME = 1;		/*�豸��*/
+        public const int PICNAME_ITEM_DEV_NO = 2;		/*�豸��*/
+        public const int PICNAME_ITEM_DEV_IP = 3;		/*�豸IP*/
+        public const int PICNAME_ITEM_CHAN_NAME = 4;	/*ͨ����*/
+        public const int PICNAME_ITEM_CHAN_NO = 5;		/*ͨ����*/
+        public const int PICNAME_ITEM_TIME = 6;		/*ʱ��*/
+        public const int PICNAME_ITEM_CARDNO = 7;		/*����*/
+        public const int PICNAME_ITEM_PLATE_NO = 8;   /*���ƺ���*/
+        public const int PICNAME_ITEM_PLATE_COLOR = 9;   /*������ɫ*/
+        public const int PICNAME_ITEM_CAR_CHAN = 10;  /*������*/
+        public const int PICNAME_ITEM_CAR_SPEED = 11;  /*�����ٶ�*/
+        public const int PICNAME_ITEM_CARCHAN = 12;  /*��ʾ��*/
+        public const int PICNAME_ITEM_PIC_NUMBER = 13;  //ͼƬ���
+        public const int PICNAME_ITEM_CAR_NUMBER = 14;  //�������
+
+        public const int PICNAME_ITEM_SPEED_LIMIT_VALUES = 15; //����ֵ
+        public const int PICNAME_ITEM_ILLEGAL_CODE = 16; //����������
+        public const int PICNAME_ITEM_CROSS_NUMBER = 17; //·�ڱ��
+        public const int PICNAME_ITEM_DIRECTION_NUMBER = 18; //������
+
+        public const int PICNAME_MAXITEM = 15;
+        //ͼƬ����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PICTURE_NAME
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PICNAME_MAXITEM, ArraySubType = UnmanagedType.I1)]
+            public byte[] byItemOrder;	/*	�����鶨���ļ������Ĺ��� */
+            public byte byDelimiter;		/*�ָ�����һ��Ϊ'_'*/
+        }
+
+
+        //��������2013-09-27
+        public const int PICNAME_ITEM_PARK_DEV_IP = 1;	/*�豸IP*/
+        public const int PICNAME_ITEM_PARK_PLATE_NO = 2;/*���ƺ���*/
+        public const int PICNAME_ITEM_PARK_TIME = 3;	/*ʱ��*/
+        public const int PICNAME_ITEM_PARK_INDEX = 4;   /*����*/
+        public const int PICNAME_ITEM_PARK_STATUS = 5;  /*��λ״̬*/
+
+        //ͼƬ������չ 2013-09-27
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PICTURE_NAME_EX
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PICNAME_MAXITEM, ArraySubType = UnmanagedType.I1)]
+            public byte[] byItemOrder;	/*	�����鶨���ļ������Ĺ��� */
+            public byte byDelimiter;	            	/*�ָ�����һ��Ϊ'_'*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;                      /*����*/
+        }
+
+        /* ����ץͼ����*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SERIAL_CATCHPIC_PARA
+        {
+            public byte byStrFlag;	/*�������ݿ�ʼ��*/
+            public byte byEndFlag;	/*������*/
+            public ushort wCardIdx;	/*���������ʼλ*/
+            public uint dwCardLen;	/*���ų���*/
+            public uint dwTriggerPicChans;	/*��������ͨ���ţ���λ���ӵ�1λ��ʼ�ƣ���0x2��ʾ��һͨ��*/
+        }
+
+        //DVRץͼ�������ã����ߣ�
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_JPEGCFG_V30
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_JPEGPARA[] struJpegPara;	/*ÿ��ͨ����ͼ�����*/
+            public ushort wBurstMode;							/*ץͼ��ʽ,��λ����.0x1=�������봥����0x2=�ƶ���ⴥ�� 0x4=232������0x8=485������0x10=���紥��*/
+            public ushort wUploadInterval;					/*ͼƬ�ϴ����(��)[0,65535]*/
+            public NET_DVR_PICTURE_NAME 	struPicNameRule;	/* ͼƬ�������� */
+            public byte bySaveToHD;		/*�Ƿ񱣴浽Ӳ��*/
+            public byte byRes1;
+            public ushort wCatchInterval;		/*ץͼ���(����)[0,65535]*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 12, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+            public NET_DVR_SERIAL_CATCHPIC_PARA struRs232Cfg;
+            public NET_DVR_SERIAL_CATCHPIC_PARA struRs485Cfg;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwTriggerPicTimes;	/* ÿ��ͨ��һ�δ������մ��� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ALARMIN_V30, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwAlarmInPicChanTriggered; /*��������ץ��ͨ��,��λ���ã��ӵ�1λ��ʼ*/
+        }
+
+        //�ֶ���������
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_MANUALSNAP
+        {
+            public byte byOSDEnable;
+            public byte byLaneNo;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 22, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        public const int NET_ITC_GET_TRIGGERCFG = 3003; //��ȡ��������
+        public const int NET_ITC_SET_TRIGGERCFG = 3004; //��������
+        public const int NET_DVR_GET_CURTRIGGERMODE = 3130; //��ȡ�豸��ǰ����ģʽ
+        public const int NET_ITC_GET_VIDEO_TRIGGERCFG = 3017;  //��ȡ��Ƶ�羯��������
+        public const int NET_ITC_SET_VIDEO_TRIGGERCFG = 3018;  //������Ƶ�羯��������
+
+        public const int MAX_ITC_LANE_NUM = 6;
+        public const int MAX_IOOUT_NUM = 4;
+        public const int MAX_LANEAREA_NUM = 2;
+        public const int MAX_IOIN_NUMEX = 10;
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_ITC_SERIAL_INFO
+        {
+            public byte bySerialProtocol;
+            public byte byIntervalType;
+            public ushort wInterval;
+            public byte byNormalPassProtocol;
+            public byte byInverseProtocol;
+            public byte bySpeedProtocol;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 9, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_ITC_EPOLICE_LANE_PARAM
+        {
+            public byte byEnable;
+            public byte byRelatedDriveWay;
+            public ushort wDistance;
+            public byte byRecordEnable;
+            public byte byRecordType;
+            public byte byPreRecordTime;
+            public byte byRecordDelayTime;
+            public byte byRecordTimeOut;
+            public byte bySignSpeed;
+            public byte bySpeedLimit;
+            public byte byOverlayDriveWay;
+            public NET_ITC_SERIAL_INFO struSerialInfo;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_IOOUT_NUM, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRelatedIOOut;
+            public byte byFlashMode;
+            public byte bySerialType;
+            public byte byRelatedIOOutEx;
+            public byte bySnapPicPreRecord;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_LANEAREA_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_ITC_PLATE_RECOG_REGION_PARAM[] struPlateRecog;
+            public byte byBigCarSignSpeed;
+            public byte byBigCarSpeedLimit;
+            public byte byRedTrafficLightChan;
+            public byte byYellowTrafficLightChan;
+            public byte byRelaLaneDirectionType;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 11, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes3;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_ITC_EPOLICE_RS485_PARAM
+        {
+            public byte byRelatedLaneNum;
+            public byte byTrafficLightSignalSrc;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_ITC_PLATE_RECOG_PARAM struPlateRecog;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ITC_LANE_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_ITC_EPOLICE_LANE_PARAM[] struLane;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_ITC_SINGLEIO_PARAM
+        {
+            public byte byDefaultStatus;
+            public byte byRelatedDriveWay;
+            public byte bySnapTimes;
+            public byte byRelatedIOOutEx;
+            public NET_ITC_INTERVAL_PARAM struInterval;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_IOOUT_NUM, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRelatedIOOut;
+            public byte byFlashMode;
+            public byte byEnable;
+            public byte byUseageType;
+            public byte byRes2;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_LANEAREA_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_ITC_PLATE_RECOG_REGION_PARAM[] struPlateRecog;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_ITC_POST_SINGLEIO_PARAM
+        {
+            public NET_ITC_PLATE_RECOG_PARAM struPlateRecog;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_IOIN_NUMEX, ArraySubType = UnmanagedType.Struct)]
+            public NET_ITC_SINGLEIO_PARAM[] struSingleIO;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_CURTRIGGERMODE
+        {
+            public uint dwSize;
+            public uint dwTriggerType;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 24, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_ITC_PLATE_RECOG_PARAM
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 3)]
+            public string byDefaultCHN;
+            public byte byEnable;
+            public uint dwRecogMode;
+            public byte byVehicleLogoRecog;
+            public byte byProvince;
+            public byte byRegion;
+            public byte byRes1;
+            public ushort wPlatePixelWidthMin;
+            public ushort wPlatePixelWidthMax;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 24, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_ITC_INTERVAL_PARAM
+        {
+            public byte byIntervalType;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_INTERVAL_NUM, ArraySubType = UnmanagedType.U2)]
+            public ushort[] wInterval;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct UNION_REGION
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 164, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_ITC_PLATE_RECOG_REGION_PARAM
+        {
+            public byte byMode;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public UNION_REGION uRegion;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_ITC_LANE_PARAM
+        {
+            public byte byEnable;
+            public byte byRelatedDriveWay;
+            public ushort wDistance;
+            public ushort wTrigDelayTime;
+            public byte byTrigDelayDistance;
+            public byte bySpeedCapEn;
+            public byte bySignSpeed;
+            public byte bySpeedLimit;
+            public byte bySnapTimes;
+            public byte byOverlayDriveWay;
+            public NET_ITC_INTERVAL_PARAM struInterval;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_IOOUT_NUM, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRelatedIOOut;
+            public byte byFlashMode;
+            public byte byCartSignSpeed;
+            public byte byCartSpeedLimit;
+            public byte byRelatedIOOutEx;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_LANEAREA_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_ITC_PLATE_RECOG_REGION_PARAM[] struPlateRecog;
+            public byte byLaneType;
+            public byte byUseageType;
+            public byte byRelaLaneDirectionType;
+            public byte byLowSpeedLimit;
+            public byte byBigCarLowSpeedLimit;
+            public byte byLowSpeedCapEn;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 10, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_ITC_RADAR_PARAM
+        {
+            public byte byRadarType;
+            public byte byLevelAngle;
+            public ushort wRadarSensitivity;
+            public ushort wRadarSpeedValidTime;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public float fLineCorrectParam;
+            public int iConstCorrectParam;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_ITC_POST_RS485_RADAR_PARAM
+        {
+            public byte byRelatedLaneNum;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_ITC_PLATE_RECOG_PARAM struPlateRecog;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ITC_LANE_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_ITC_LANE_PARAM[] struLane;
+            public NET_ITC_RADAR_PARAM struRadar;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_ITC_TRIGGER_PARAM_UNION
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4280, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_ITC_SINGLE_TRIGGERCFG
+        {
+            public byte byEnable;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public uint dwTriggerType;
+            public NET_ITC_TRIGGER_PARAM_UNION uTriggerParam;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_ITC_TRIGGERCFG
+        {
+            public uint dwSize;
+            public NET_ITC_SINGLE_TRIGGERCFG struTriggerParam;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_ITC_VIDEO_TRIGGER_COND
+        {
+            public uint dwSize;
+            public uint dwChannel;
+            public uint dwTriggerMode;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_ITC_VIDEO_TRIGGER_PARAM_UNION
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 1150, ArraySubType = UnmanagedType.U4)]
+            public uint[] uLen;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_ITC_LIGHT_ACCESSPARAM_UNION
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 122, ArraySubType = UnmanagedType.U4)]
+            public uint[] uLen;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_ITC_TRAFFIC_LIGHT_PARAM
+        {
+            public byte bySource; //��ͨ�źŵƽ���Դ��0-IO���룬1-RS485����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_ITC_LIGHT_ACCESSPARAM_UNION struLightAccess;//�źŵƽ������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //�������Բ����ṹ
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_ITC_LANE_LOGIC_PARAM
+        {
+            public byte byUseageType;     //������;���ͣ����ITC_LANE_USEAGE_TYPE
+            public byte byDirectionType;  //�����������ͣ����ITC_LANE_DIRECTION_TYPE
+            public byte byCarDriveDirect; //������ʻ�������ITC_LANE_CAR_DRIVE_DIRECT 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 33, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;        //����
+        }
+
+        //Υ��������ṹ
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_ITC_VIOLATION_DETECT_PARAM
+        {
+            public uint dwVioDetectType; //Υ��������, ��λ��ʾ, ���ITC_VIOLATION_DETECT_TYPE ,0-������,1-����
+            public byte byDriveLineSnapTimes; //ѹ������ץ������,2-3
+            public byte byReverseSnapTimes; //����ץ��,2-3
+            public ushort wStayTime; //��ռ��ͣ��ʱ�䣨��ʱ���ץ�ģ�����λs
+            public byte byNonDriveSnapTimes;//��ռ��ץ������2-3
+            public byte byChangeLaneTimes;//Υ�����ץ������ 2-3
+            public byte bybanTimes;//Υ������ץ������2-3
+            public byte byDriveLineSnapSen;// ѹ��������(0~100)(3.7Ver)
+            public ushort wSnapPosFixPixel; //��2,3��ץ��λ����Сƫ��(Υ���źŵ�ʱ��Ч)����λ�����أ� ������Ľ�
+            public byte bySpeedTimes;//Υ������ץ������2-3(3.8Ver)
+            public byte byTurnAroundEnable;//Υ�µ�ͷʹ�� 0~�ر� 1~����
+            public byte byThirdPlateRecogTime;//��������ʶʱ�� 0~180s
+            public byte byPostSnapTimes;//����ץ������,1-2��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 18, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public ushort wStopLineDis;  //�羯��2��Υ��ͼƬ��ֹͣ�ߵ���̾��룬[0,300]��λ(����)
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 14, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_ITC_VIDEO_TRIGGER_PARAM
+        {
+            public uint dwSize;
+            public uint dwMode;
+            public NET_ITC_VIDEO_TRIGGER_PARAM_UNION uVideoTrigger;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_LAMP_EXTERNAL_CFG
+        {
+            public uint dwSize;
+            public byte byEnable; //���ʹ�� 0�������� 1������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_DVR_LAMP_STATE struLampStateCtrl;//ָʾ�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        //ָʾ�����
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_LAMP_STATE
+        {
+            public byte byFlicker;//0~����˸ 1 ����˸
+            public byte byParkingIndex;//���1��3
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public uint dwIONo;//1~IO1;2~IO2;4~IO3;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        public const int MAX_LED_INFO_LEN = 512;
+        public const int MAX_VOICE_INFO_LEN = 128;
+
+        public const int NET_DVR_GET_LEDDISPLAY_CFG = 3673;
+        public const int NET_DVR_SET_LEDDISPLAY_CFG = 3672;
+        public const int NET_DVR_SET_VOICEBROADCAST_CFG = 3675;
+
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_LEDDISPLAY_CFG
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_LED_INFO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sDisplayInfo;
+            public byte byDisplayMode;
+            public byte bySpeedType;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public uint dwShowTime;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VOICEBROADCAST_CFG
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_VOICE_INFO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sInfo; //������������
+            public byte byBroadcastNum;// �������������� 1~10��
+            public byte byIntervalTime;// �����������ʱ��,1~5s
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 126, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_ITC_VIDEO_EPOLICE_PARAM
+        {
+            public byte byEnable;    //�Ƿ����ã�0-�����ã�1-����
+            public byte byLaneNum; //ʶ��ij�������
+            public byte byLogicJudge;//�����Υ���ж��߼�������ֵΪ��0-������1-������
+            public byte byRes1;
+            public NET_ITC_PLATE_RECOG_PARAM struPlateRecog; //��ʶ����
+            public NET_ITC_TRAFFIC_LIGHT_PARAM struTrafficLight; //��ͨ�źŵƲ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ITC_LANE_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_ITC_LANE_VIDEO_EPOLICE_PARAM[] struLaneParam; //����������
+            public NET_ITC_LINE struLaneBoundaryLine; //�����߽��ߣ����ұ߳����ı߽��ߣ�
+            public NET_ITC_LINE struLeftLine; //��ת��ֽ���
+            public NET_ITC_LINE struRightLine; //��ת��ֽ���
+            public NET_ITC_LINE struTopZebraLine; //�ϲ�������
+            public NET_ITC_LINE struBotZebraLine; //�²�������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //��Ƶ�羯�߽ṹ
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_ITC_LINE
+        {
+            public NET_VCA_LINE struLine; //�߲���
+            public byte byLineType; //�����ͣ����ITC_LINE_TYPE
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 7, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //����ͽṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_ITC_POLYGON
+        {
+            public uint dwPointNum; //��Ч�� ���ڵ���3������3����һ��������Ϊ����Ч�����߽�����Ϊ����Ч���� 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.Struct)]
+            public NET_VCA_POINT[] struPos; //����α߽��,���20�� 
+        }
+
+        //Υ�����߲����ṹ
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_ITC_VIOLATION_DETECT_LINE
+        {
+            public NET_ITC_LINE struLaneLine; //�����߲���
+            public NET_ITC_LINE struStopLine; //ֹͣ�߲���
+            public NET_ITC_LINE struRedLightLine; //����ƴ����߲���
+            public NET_ITC_LINE struCancelLine; //ֱ�д���λ��ȡ����
+            public NET_ITC_LINE struWaitLine; //������ֹͣ�߲���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.Struct)]
+            public NET_ITC_LINE[] struRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_ITC_LANE_VIDEO_EPOLICE_PARAM
+        {
+            public byte byLaneNO; //�����ij�����
+            public byte bySensitivity; //��Ȧ�����ȣ�[1,100]
+            public byte byEnableRadar;//�����״����0-�����ã�1-����
+            //���������������ͣ��ο�ITC_RELA_LANE_DIRECTION_TYPE
+            //�ò���Ϊ�����������������������Ŷ�Ӧ��ȷ������Ψһ�ԡ�
+            public byte byRelaLaneDirectionType;
+            public NET_ITC_LANE_LOGIC_PARAM struLane; //��������
+            public NET_ITC_VIOLATION_DETECT_PARAM struVioDetect; //�������
+            public NET_ITC_VIOLATION_DETECT_LINE struLine; //������
+            public NET_ITC_POLYGON struPlateRecog; //��ʶ�������
+            public byte byRecordEnable;//���������¼���־��0-��¼��1-¼��
+            public byte byRecordType;//�����¼�����ͣ�0-Ԥ¼��1-��ʱ¼��
+            public byte byPreRecordTime;//�����¼��Ƭ��Ԥ¼ʱ�䣨Ĭ��0������λ����
+            public byte byRecordDelayTime;//�����¼��Ƭ����ʱʱ�䣨Ĭ��0������λ����
+            public byte byRecordTimeOut;//���������¼��ʱʱ�䣨�룩
+            public byte byCarSpeedLimit; //��������ֵ����λkm/h
+            public byte byCarSignSpeed;//��־���٣���λkm/h
+            public byte bySnapPicPreRecord; //ץ��ͼƬԤ¼ʱ��㣻0-Ĭ��ֵ���ڶ���ͼƬ����1-��һ��ͼƬ��2-�ڶ���ͼƬ��3-������ͼƬ
+            public NET_ITC_INTERVAL_PARAM struInterval;//ץ�ļ��������20byte��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 36, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SPRCFG    
+        {
+            public uint dwSize; 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHJC_NUM, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDefaultCHN; /*�豸����ʡ�ݵĺ��ּ�д*/
+            public byte byPlateOSD;    /*0:�����ͳ��Ʋ�ɫͼ,1:���ͳ��Ʋ�ɫͼ*/
+            public byte bySendJPEG1;   /*0-�����ͽ���JPEGͼ,1-���ͽ���JPEGͼ*/
+            public byte bySendJPEG2;   /*0-������Զ��JPEGͼ,1-����Զ��JPEGͼ*/
+            public ushort wDesignedPlateWidth;   /*������ƿ���*/
+            public byte byTotalLaneNum;  /*ʶ��ij�����*/
+            public byte byRes1;      /*����*/
+            public ushort wRecognizedLane;  /*ʶ��ij����ţ���λ��ʾ��bit0��ʾ����1�Ƿ�ʶ��0-��ʶ��1-ʶ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_LANERECT_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_VCA_RECT[] struLaneRect;  /*����ʶ������*/
+            public uint dwRecogMode;  /*ʶ������ͣ�
+	        bit0-����ʶ��0-������ʶ��1-����ʶ��(β��ʶ��) �� 
+		    bit1-����ʶ���С����ʶ��0-С����ʶ��1-����ʶ�� ��
+		    bit2-������ɫʶ��0-�����ó�����ɫʶ���ڱ���ʶ���С����ʶ��ʱ��ֹ���ã�1-������ɫʶ��
+		    bit3-ũ�ó�ʶ��0-������ũ�ó�ʶ��1-ũ�ó�ʶ�� 
+		    bit4-ģ��ʶ��0-������ģ��ʶ��1-ģ��ʶ��
+		    bit5-֡��λ�򳡶�λ��0-֡��λ��1-����λ��
+		    bit6-֡ʶ���ʶ��0-֡ʶ��1-��ʶ�� 
+		    bit7-���ϻ���죺0-���죬1-���� */
+            public byte bySendPRRaw;       	//�Ƿ���ԭͼ��0-�����ͣ�1-���� 
+            public byte bySendBinImage;  	//�Ƿ��ͳ��ƶ�ֵͼ��0-�����ͣ�1-���� 
+            public byte byDelayCapture;  //��ʱץ�Ŀ���,��λ��֡
+            public byte byUseLED;    //ʹ��LED���ƣ�0-��1-��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 68, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;    //����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PLCCFG
+        {
+            public uint dwSize;
+            public byte byPlcEnable;	//�Ƿ����ó������Ȳ�����Ĭ�����ã���0-�رգ�1-���� 
+            public byte byPlateExpectedBright;	//���Ƶ�Ԥ�����ȣ�Ĭ��ֵ50��, ��Χ[0, 100]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;	//���� 
+            public byte byTradeoffFlash;     //�Ƿ�������Ƶ�Ӱ��: 0 - ��;  1 - ��(Ĭ��); 
+	        //ʹ������Ʋ���ʱ, ������Ǽ�������Ƶ�������ǿЧӦ, ����Ҫ��Ϊ1;����Ϊ0
+            public byte byCorrectFactor;     //����ϵ��, ��Χ[0, 100], Ĭ��ֵ50 (��tradeoff_flash�л�ʱ,�ָ�Ĭ��ֵ��
+            public ushort wLoopStatsEn;  //�Ƿ����Ȧ�����ȣ���λ��ʾ��0-��ͳ�ƣ�1-ͳ��
+            public byte byPlcBrightOffset;// �������Ȳ���������(������Ȧģʽ��Ч)��ȡֵ��Χ1~100
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 19, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DEVICESTATECFG
+        {
+            public uint dwSize;
+            public ushort wPreviewNum; //Ԥ�����Ӹ���
+            public ushort wFortifyLinkNum; //�������Ӹ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_LINK, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_IPADDR[] struPreviewIP;  //Ԥ�����û�IP��ַ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_FORTIFY_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_IPADDR[] struFortifyIP; //�������ӵ��û�IP��ַ
+            public uint dwVideoFrameRate;	//֡�ʣ�0-ȫ��; 1-1/16; 2-1/8; 3-1/4; 4-1/2; 5-1; 6-2; 7-4; 8-6; 9-8; 10-10; 11-12; 12-16; 13-20; 14-15; 15-18; 16-22;
+            public byte byResolution;  	//�ֱ���0-DCIF 1-CIF, 2-QCIF, 3-4CIF, 4-2CIF 5��������,16-VGA��640*480��, 17-UXGA��1600*1200��, 18-SVGA ��800*600��,19-HD720p��1280*720��,20-XVGA,  21-HD900p, 27-HD1080i, 28-2560*1920, 29-1600*304, 30-2048*1536, 31-2448*2048
+            public byte bySnapResolution;  	//ץ�ķֱ���0-DCIF 1-CIF, 2-QCIF, 3-4CIF, 4-2CIF 5��������,16-VGA��640*480��, 17-UXGA��1600*1200��, 18-SVGA ��800*600��,19-HD720p��1280*720��,20-XVGA,  21-HD900p, 27-HD1080i, 28-2560*1920, 29-1600*304, 30-2048*1536, 31-2448*2048
+            public byte byStreamType; //�������ͣ�0-��������1-������
+            public byte byTriggerType; //����ģʽ��0-��Ƶ������1-��ͨ����
+            public uint dwSDVolume;  //SD������
+            public uint dwSDFreeSpace; //SD��ʣ��ռ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DRIVECHAN_NUM * MAX_COIL_NUM, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDetectorState;  //������״̬��0-δʹ�ã�1-������2-�쳣
+            public byte byDetectorLinkState; //����������״̬��0-δ���ӣ�1-����
+            public byte bySDStatus;    //SD��״̬ 0�����1�����ߣ�2���쳣��3-��sd��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_FORTIFY_NUM, ArraySubType = UnmanagedType.I1)]
+            public byte[] byFortifyLevel; //�����ȼ���0-�ޣ�1-һ�ȼ����ߣ���2-���ȼ����У���3-���ȼ����ͣ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 116, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2; //����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_POSTEPOLICECFG
+        {
+            public uint dwSize;
+            public uint dwDistance;//��Ȧ����,��λcm��ȡֵ��Χ[0,20000]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_SIGNALLIGHT_NUM, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwLightChan;	//�źŵ�ͨ����
+            public byte byCapSpeed;//��־���٣���λkm/h��ȡֵ��Χ[0,255]
+            public byte bySpeedLimit;//����ֵ����λkm/h��ȡֵ��Χ[0,255]
+            public byte byTrafficDirection;//��������0-�ɶ�������1-�����򶫣�2-�����򱱣�3-�ɱ�����
+            public byte byRes1; //����
+            public ushort wLoopPreDist;        /*�����ӳپ��� ����λ������*/
+            public ushort wTrigDelay;             /*����Ӳ��ʱʱ�� ����λ������*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 124, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;//�����ֽ�
+        }
+        /***************************** end *********************************************/
+        public const int IPC_PROTOCOL_NUM = 50;  //ipc ��������
+
+        //������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PROTO_TYPE
+        {
+            public uint dwType;               /*ipcЭ��ֵ*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = DESC_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDescribe; /*Э�������ֶ�*/
+        }
+
+        //Э���б�
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IPC_PROTO_LIST
+        {    
+            public uint dwSize; 
+            public uint dwProtoNum;           /*��Ч��ipcЭ����Ŀ*/  
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = IPC_PROTOCOL_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_PROTO_TYPE[] struProto;   /*����ipc��*/    
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //Э���б�V41
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IPC_PROTO_LIST_V41
+        {   
+            public uint dwSize;  
+            public uint dwProtoNum;  //��Ч��ipcЭ����Ŀ
+            public IntPtr pBuffer;    //Э���б�������, dwProtoNum ��NET_DVR_PROTO_TYPE�ṹ  
+            public uint dwBufferLen; //����������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;   
+        }
+
+
+        public const int MAX_ALERTLINE_NUM = 8; //��󾯽�������	
+        
+        //Խ������ѯ����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_TRAVERSE_PLANE_SEARCHCOND
+        {	
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ALERTLINE_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_VCA_TRAVERSE_PLANE[] struVcaTraversePlane;  //��Խ���������
+            public uint dwPreTime;   /*���ܱ�����ǰʱ�� ��λ:��*/
+            public uint dwDelayTime; /*���ܱ����ӳ�ʱ�� ��λ:��*/ 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 5656, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; //����
+        } 
+
+        public const int MAX_INTRUSIONREGION_NUM = 8; //�����������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_INTRUSION_SEARCHCOND  
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_INTRUSIONREGION_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_VCA_INTRUSION[] struVcaIntrusion; //��������
+            public uint dwPreTime;   /*���ܱ�����ǰʱ�� ��λ:��*/
+            public uint dwDelayTime; /*���ܱ����ӳ�ʱ�� ��λ:��*/ 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 5400, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; //����
+        }
+
+
+        [StructLayoutAttribute(LayoutKind.Explicit)]
+        public struct NET_DVR_AREA_SMARTSEARCH_COND_UNION
+        {  
+            [FieldOffsetAttribute(0)]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 6144, ArraySubType = UnmanagedType.I1)]
+            public byte[] byLen;  //�ṹ�峤��
+            /*[FieldOffsetAttribute(0)]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64 * 96, ArraySubType = UnmanagedType.I1)]
+            public byte[] byMotionScope; //������� 0-96λ��ʾ64�У�����96*64��С��飬1-���ƶ��������0-���ƶ�������� 
+            [FieldOffsetAttribute(0)]
+            public NET_DVR_TRAVERSE_PLANE_SEARCHCOND struTraversPlaneCond; //Խ�����
+            [FieldOffsetAttribute(0)]
+            public NET_DVR_INTRUSION_SEARCHCOND struIntrusionCond; //��������
+             * */
+        }
+
+        //������������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SMART_SEARCH_PARAM
+        {
+            public byte byChan;					//ͨ����
+            public byte bySearchCondType; //���ܲ���������NET_DVR_AREA_SMARTSEARCH_COND_UNION������     
+	        /*0-�ƶ�������� ��1-Խ����⣬ 2-��������*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_DVR_TIME struStartTime;		//¼��ʼ��ʱ��
+            public NET_DVR_TIME struEndTime;		//¼��ֹͣ��ʱ��
+            public NET_DVR_AREA_SMARTSEARCH_COND_UNION uSmartSearchCond;  //���ܲ�������
+            public byte bySensitivity;   			//�ƶ��������������,1	>80%  2 40%~80%  3 1%~40%
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 11, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+    
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SMART_SEARCH_RET
+        {
+            public NET_DVR_TIME struStartTime;	//�ƶ���ⱨ����ʼ��ʱ��
+            public NET_DVR_TIME struEndTime;   //�¼�ֹͣ��ʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //IPSAN �ļ�Ŀ¼����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IPSAN_SERACH_PARAM
+        {
+            public NET_DVR_IPADDR  struIP;     // IPSAN IP��ַ
+            public ushort wPort;      // IPSAN  �˿�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 10, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;  // �����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IPSAN_SERACH_RET
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDirectory;  // ���ص��ļ�Ŀ¼
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //DVR�豸����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DEVICECFG_V40
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sDVRName; //DVR����
+            public uint dwDVRID;				//DVR ID,����ң���� //V1.4(0-99), V1.5(0-255)
+            public uint dwRecycleRecord;		//�Ƿ�ѭ��¼��,0:����; 1:��
+            //���²��ɸ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = SERIALNO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sSerialNumber; //���к�
+            public uint dwSoftwareVersion;			//�����汾��,��16λ�����汾,��16λ�Ǵΰ汾
+            public uint dwSoftwareBuildDate;			//������������,0xYYYYMMDD
+            public uint dwDSPSoftwareVersion;		    //DSP�����汾,��16λ�����汾,��16λ�Ǵΰ汾
+            public uint dwDSPSoftwareBuildDate;		// DSP������������,0xYYYYMMDD
+            public uint dwPanelVersion;				// ǰ���汾,��16λ�����汾,��16λ�Ǵΰ汾
+            public uint dwHardwareVersion;	// Ӳ���汾,��16λ�����汾,��16λ�Ǵΰ汾
+            public byte byAlarmInPortNum;		//DVR�����������
+            public byte byAlarmOutPortNum;		//DVR�����������
+            public byte byRS232Num;			//DVR 232���ڸ���
+            public byte byRS485Num;			//DVR 485���ڸ��� 
+            public byte byNetworkPortNum;		//����ڸ���
+            public byte byDiskCtrlNum;			//DVR Ӳ�̿���������
+            public byte byDiskNum;				//DVR Ӳ�̸���
+            public byte byDVRType;				//DVR����, 1:DVR 2:ATM DVR 3:DVS ......
+            public byte byChanNum;				//DVR ͨ������
+            public byte byStartChan;			//��ʼͨ����,����DVS-1,DVR - 1
+            public byte byDecordChans;			//DVR ����·��
+            public byte byVGANum;				//VGA�ڵĸ��� 
+            public byte byUSBNum;				//USB�ڵĸ���
+            public byte byAuxoutNum;			//���ڵĸ���
+            public byte byAudioNum;			//�����ڵĸ���
+            public byte byIPChanNum;			//�������ͨ���� ��8λ����8λ��byHighIPChanNum 
+            public byte byZeroChanNum;			//��ͨ���������
+            public byte bySupport;        //������λ����Ϊ0��ʾ��֧�֣�1��ʾ֧�֣�
+            //bySupport & 0x1, ��ʾ�Ƿ�֧����������
+            //bySupport & 0x2, ��ʾ�Ƿ�֧�ֱ���
+            //bySupport & 0x4, ��ʾ�Ƿ�֧��ѹ������������ȡ
+            //bySupport & 0x8, ��ʾ�Ƿ�֧�ֶ�����
+            //bySupport & 0x10, ��ʾ֧��Զ��SADP
+            //bySupport & 0x20, ��ʾ֧��Raid������
+            //bySupport & 0x40, ��ʾ֧��IPSAN����
+	        //bySupport & 0x80, ��ʾ֧��rtp over rtsp
+            public byte byEsataUseage;		//Esata��Ĭ����;��0-Ĭ�ϱ��ݣ�1-Ĭ��¼��
+            public byte byIPCPlug;			//0-�رռ��弴�ã�1-�򿪼��弴��
+            public byte byStorageMode;		//0-����ģʽ,1-�������, 2��֡ģʽ
+            public byte bySupport1;		//������λ����Ϊ0��ʾ��֧�֣�1��ʾ֧��
+	        //bySupport1 & 0x1, ��ʾ�Ƿ�֧��snmp v30
+	        //bySupport1 & 0x2, ֧�����ֻطź�����
+	        //bySupport1 & 0x4, �Ƿ�֧�ֲ������ȼ�	
+	        //bySupport1 & 0x8, �����豸�Ƿ�֧�ֲ���ʱ�����չ
+	        //bySupport1 & 0x10, ��ʾ�Ƿ�֧�ֶ������������33����
+	        //bySupport1 & 0x20, ��ʾ�Ƿ�֧��rtsp over http	
+            public ushort wDevType;//�豸�ͺ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = DEV_TYPE_NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDevTypeName;//�豸�ͺ����� 
+            public byte bySupport2; //��������չ��λ����Ϊ0��ʾ��֧�֣�1��ʾ֧��
+	        //bySupport2 & 0x1, ��ʾ�Ƿ�֧����չ��OSD�ַ�����(�ն˺�ץ�Ļ���չ����)
+            public byte byAnalogAlarmInPortNum; //ģ�ⱨ���������
+            public byte byStartAlarmInNo;    //ģ�ⱨ��������ʼ��
+            public byte byStartAlarmOutNo;  //ģ�ⱨ�������ʼ��
+            public byte byStartIPAlarmInNo;  //IP����������ʼ��  0-��Ч
+            public byte byStartIPAlarmOutNo; //IP���������ʼ�� 0-��Ч
+            public byte byHighIPChanNum;     //����ͨ����������8λ 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 9, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;			//����
+        }
+
+        public const int MAX_ZEROCHAN_NUM = 16;
+        //��ͨ��ѹ�����ò���
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ZEROCHANCFG
+        {
+            public uint dwSize;			    //�ṹ����
+            public byte byEnable;			//0-ֹͣ��ͨ�����룬1-��ʾ������ͨ������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;			//����
+            public uint dwVideoBitrate; 	/*��Ƶ���� 0-���� 1-16K(����) 2-32K 3-48k 4-64K 5-80K 6-96K 7-128K 8-160k 9-192K 10-224K 11-256K 
+                                             * 12-320K 13-384K 14-448K 15-512K 16-640K 17-768K 18-896K 19-1024K 20-1280K 21-1536K 22-1792K
+                                             * 23-2048K
+                                             * ���λ(31λ)�ó�1��ʾ���Զ�������, 0-30λ��ʾ����ֵ(MIN-32K MAX-8192K) */
+            public uint dwVideoFrameRate;	//֡�� 0-ȫ��; 1-1/16; 2-1/8; 3-1/4; 4-1/2; 5-1; 6-2; 7-4; 8-6; 9-8; 10-10; 11-12; 12-16; 13-20, 
+                                            //V2.0����14-15, 15-18, 16-22;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;        //����
+        }
+
+        //��ͨ�����Ų���
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ZERO_ZOOMCFG
+        {
+            public uint dwSize;			    //�ṹ����
+            public NET_VCA_POINT struPoint;	//����������
+            public byte byState;		 //���ڵ�״̬��0-��С��1-�Ŵ�  
+            public byte byPreviewNumber;       //Ԥ����Ŀ,0-1����,1-4����,2-9����,3-16���� �ò���ֻ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_WINDOW_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byPreviewSeq;//����ͨ����Ϣ �ò���ֻ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;				//���� 
+        }
+
+        public const int DESC_LEN_64 = 64;
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SNMPCFG
+        {
+            public uint dwSize;			//�ṹ����
+            public byte byEnable;			//0-����SNMP��1-��ʾ����SNMP
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;			//����
+            public ushort wVersion;		//snmp �汾  v1 = 1, v2 =2, v3 =3���豸Ŀǰ��֧�� v3
+            public ushort wServerPort; //snmp��Ϣ���ն˿ڣ�Ĭ�� 161
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byReadCommunity; //����ͬ�壬���31,Ĭ��"public"
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byWriteCommunity;//д��ͬ��,���31 �ֽ�,Ĭ�� "private"
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = DESC_LEN_64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byTrapHostIP;	//��������ip��ַ������֧��IPV4 IPV6����������    
+            public ushort wTrapHostPort;   //trap�����˿�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byTrapName;	
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 70, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;    //����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SNMPv3_USER
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byUserName;			// �û���				
+            public byte bySecLevel;	//��ȫ���� 1-��У�� 2-����ȨУ�� 3-��ȨУ��
+            public byte byAuthtype;	//��֤���� 0-MD5��֤ 1-SHA��֤ 2: none
+            public byte byPrivtype;	//0: DES; 1: AES; 2: none;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 5, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAuthpass;	//��֤����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byPrivpass;	//��������
+        }
+        
+        //snmpv30
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SNMPCFG_V30
+        {
+            public uint dwSize;			//�ṹ����
+            public byte byEnableV1;		//0-����SNMP V1��1-��ʾ����SNMP V1
+            public byte byEnableV2;		//0-����SNMP V2��1-��ʾ����SNMP V2
+            public byte byEnableV3;		//0-����SNMP V3��1-��ʾ����SNMP V3
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public ushort wServerPort;					//snmp��Ϣ���ն˿ڣ�Ĭ�� 161
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byReadCommunity;		//����ͬ�壬���31,Ĭ��"public"
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byWriteCommunity;		//д��ͬ��,���31 �ֽ�,Ĭ�� "private"
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = DESC_LEN_64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byTrapHostIP;		//��������ip��ַ������֧��IPV4 IPV6����������    
+            public ushort wTrapHostPort;					// trap�����˿�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;       
+            public NET_DVR_SNMPv3_USER struRWUser;    // ��д�û�
+            public NET_DVR_SNMPv3_USER struROUser;    // ֻ���û�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byTrapName;
+        }
+        
+        public const int PROCESSING = 0;    //���ڴ���
+        public const int PROCESS_SUCCESS = 100;   //�������
+        public const int PROCESS_EXCEPTION = 400;   //�����쳣
+        public const int PROCESS_FAILED = 500;   //����ʧ��
+        public const int PROCESS_QUICK_SETUP_PD_COUNT = 501; //һ����������3��Ӳ��
+
+        public const int SOFTWARE_VERSION_LEN = 48;
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SADPINFO
+        {
+            public NET_DVR_IPADDR struIP;     // �豸IP��ַ
+            public ushort wPort;      // �豸�˿ں�
+            public ushort wFactoryType;   // �豸��������
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = SOFTWARE_VERSION_LEN)]
+            public string chSoftwareVersion;
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 16)]
+            public string chSerialNo; // ���к�
+            public ushort wEncCnt;   // ����ͨ������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MACADDR_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byMACAddr;		// MAC ��ַ
+            public NET_DVR_IPADDR struSubDVRIPMask;   // DVR IP��ַ����
+            public NET_DVR_IPADDR struGatewayIpAddr;  // ����
+            public NET_DVR_IPADDR struDnsServer1IpAddr;	/* ����������1��IP��ַ */
+            public NET_DVR_IPADDR struDnsServer2IpAddr;	/* ����������2��IP��ַ */
+            public byte byDns;
+            public byte byDhcp;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 158, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;     // �����ֽ�
+        }
+
+        public const int MAX_SADP_NUM = 256;  //�������豸�����Ŀ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SADPINFO_LIST
+        {
+            public uint dwSize;   //  �ṹ��С
+            public ushort wSadpNum;   // �������豸��Ŀ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 6, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;   // �����ֽ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_SADP_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SADPINFO[] struSadpInfo; // ����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SADP_VERIFY
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = PASSWD_LEN)]
+            public string chPassword;
+            public NET_DVR_IPADDR struOldIP;
+            public ushort wOldPort;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 62, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VIDEO_CALL_COND
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VIDEO_CALL_PARAM
+        {
+            public uint dwSize;
+            public uint dwCmdType;      //��������  0-������У�1-ȡ�����κ��У�2-�������κ��� 3-�ܾ������������ 4-�������峬ʱ 5-��������ͨ����6-�豸����ͨ���У�7-�ͻ�������ͨ���У�8���ڻ�������
+            public ushort wPeriod;  //�ں�, ��Χ[0,9]
+            public ushort wBuildingNumber; //¥��
+            public ushort wUnitNumber;  //��Ԫ��
+            public ushort wFloorNumber;  //���
+            public ushort wRoomNumber;    //�����
+            public ushort wDevIndex; //�豸���
+            public byte byUnitType; //�豸���ͣ�1-�ſڻ���2-��������3-���ڻ���4-Χǽ����5-�����ſڻ���6-����ȷ�ϻ���7-8700�ͻ��ˣ�8-4200�ͻ��ˣ�9-APP
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 115, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;     //����
+        }
+
+        //������¼
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_UNLOCK_RECORD_INFO
+        {
+            public byte byUnlockType; //������ʽ���ο�UNLOCK_TYPE_ENUM
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1; //����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byControlSrc; //��������Դ��Ϣ��ˢ������ʱΪ���ţ���������ʱΪөʯ��APP�˺ţ���ά�뿪��ʱΪ�ÿ͵��ֻ��ţ����������Ϊ�豸���
+            public uint dwPicDataLen; //ͼƬ���ݳ���
+            public IntPtr pImage; //ͼƬָ��
+            public uint dwCardUserID; //�ֿ���ID
+            public ushort nFloorNumber;//ˢ������ʱ��Ч��Ϊ¥���
+            public ushort wRoomNumber; //��������Դ������Ϣ��ˢ������ʱ��Ч��Ϊ����ţ�
+            public ushort wLockID; //�������ſڻ���0-��ʾ�����������Ͻӵ�����1-��ʾ��ӿ������Ͻӵ�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = LOCK_NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byLockName; //ˢ������ʱ��Ч�������ƣ���Ӧ�Ų���������������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NET_SDK_EMPLOYEE_NO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byEmployeeNo; //���ţ���ԱID��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 136, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; //����
+        }
+
+        //������Ϣ�Ķ���ִ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_NOTICEDATA_RECEIPT_INFO
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_NOTICE_NUMBER_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byNoticeNumber; //������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 224, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;  //����
+        }
+
+        //��֤��¼���豸δʵ�֣�
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_AUTH_INFO
+        {
+            public byte byAuthResult; //��֤�����0-��Ч��1-��֤�ɹ���2-��֤ʧ��
+            public byte byAuthType; //��֤��ʽ��0-��Ч��1-ָ�ƣ�2-����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1; //����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = ACS_CARD_NO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byCardNo; //����
+            public uint dwPicDataLen; //ͼƬ���ݳ��ȣ�����֤��ʽbyAuthTypeΪ����ʱ��Ч��
+            public IntPtr pImage; //ͼƬָ�루����֤��ʽbyAuthTypeΪ����ʱ��Ч��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 212, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;  //����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Explicit)]
+        public struct NET_DVR_VIDEO_INTERCOM_EVENT_INFO_UINON
+        {
+            [FieldOffsetAttribute(0)]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 256, ArraySubType = UnmanagedType.I1)]
+            public byte[] byLen;
+        }
+
+        //���ӶԽ��¼���¼
+        public struct NET_DVR_VIDEO_INTERCOM_EVENT
+        {
+            public uint dwSize; //�ṹ���С
+            public NET_DVR_TIME_EX struTime; //ʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DEV_NUMBER_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDevNumber; //�豸���
+            public byte byEventType; //�¼���Ϣ���ͣ�1-������¼��2-������Ϣ�Ķ���ִ��3-��֤��¼��4-������Ϣ�ϴ���5�Ƿ���ˢ���¼���6-�ſڻ�������¼(��Ҫ�����ſڻ��������ܣ�ˢ��ʱ�Ż��ϴ����¼�)
+            public byte byPicTransType;        //ͼƬ���ݴ��䷽ʽ: 0-�����ƣ�1-url
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1; //����
+            public NET_DVR_VIDEO_INTERCOM_EVENT_INFO_UINON uEventInfo; //�¼���Ϣ���������ݲο�byEventTypeȡֵ
+            public uint dwIOTChannelNo;    //IOTͨ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 252, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2; //����
+        }
+        
+        public struct NET_DVR_CONTROL_GATEWAY
+        {
+            public uint dwSize; //�ṹ���С
+            public uint dwGatewayIndex; //�Ž���ţ���1��ʼ
+            public byte byCommand; //�������0-�رգ�1-�򿪣�2-������ͨ��״̬����3-�ָ�����ͨ״̬��
+            public byte byLockType; //�����ͣ�0-��ͨ����ǰĬ�϶�Ϊ0��,1-������
+            public ushort wLockID; //��ID����1��ʼ��Զ�̿��ſڻ���ʱ��0��ʾ�ſڻ������������Ͻӵ�����1��ʾ��ӿ������Ͻӵ�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byControlSrc; //��������Դ��Ϣ
+            public byte byControlType; //�������ͣ�1-��ʾ��2-ͨ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes3;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byPassword;       //�����룬��byLockTypeΪ������ʱ��Ч
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 108, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2; //����
+          }
+
+        //XML͸���ӿ�
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_XML_CONFIG_INPUT
+        {
+            public uint dwSize;//�ṹ���С 
+            public IntPtr lpRequestUrl;//��������ַ�����ʽ 
+            public uint dwRequestUrlLen;
+            public IntPtr lpInBuffer;//���������������XML��ʽ 
+            public uint dwInBufferSize;
+            public uint dwRecvTimeOut;//���ճ�ʱʱ�䣬��λ��ms����0��ʹ��Ĭ�ϳ�ʱ5s 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_XML_CONFIG_OUTPUT
+        {
+            public uint dwSize;//�ṹ���С 
+            public IntPtr lpOutBuffer;//���������������XML��ʽ 
+            public uint dwOutBufferSize;
+            public uint dwReturnedXMLSize;//ʵ�������XML���ݴ�С 
+            public IntPtr lpStatusBuffer;//���ص�״̬����(XML��ʽ��ResponseStatus)����ȡ����ɹ�ʱ���ḳֵ���������Ҫ��������NULL 
+            public uint dwStatusSize;//״̬��������С(�ڴ��С) 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CHANNEL_GROUP
+        {
+            public uint dwSize;//�ṹ���С 
+            public uint dwChannel;//ͨ���� 
+            public uint dwGroup; //��ţ���0��ʼ����0��ʾ��1�飬1��ʾ��2�飬�������� 
+            public byte byID;//�豸��������ID 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public uint dwPositionNo;//����λ�������ţ�IPCΪ0��IPD��1��ʼ  
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 56, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_TRAVERSE_PLANE_DETECTION
+        {
+            public uint dwSize;//�ṹ���С 
+            public byte byEnable;//ʹ��Խ����⹦�ܣ�0- ��1- ��  
+            public byte byEnableDualVca; //����֧�����ܺ������0- �����ã�1- ���� 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ALERTLINE_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_VCA_TRAVERSE_PLANE[] struAlertParam;//�����߲���
+
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[] struAlarmSched;//����ʱ�䣬ÿ��7�죬ÿ���������8��ʱ��� 
+
+            public NET_DVR_HANDLEEXCEPTION_V40 struHandleException;//�쳣������ʽ 
+
+            public uint dwMaxRelRecordChanNum;
+            public uint dwRelRecordChanNum;
+
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.U4)]
+            public uint[] byRelRecordChan;
+
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[] struHolidayTime; //���ղ���ʱ�䣬�������8��ʱ��� 
+
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 100, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_STD_CONFIG
+        {
+            public IntPtr lpCondBuffer;
+            public uint dwCondSize;
+            public IntPtr lpInBuffer;
+            public uint dwInSize;
+            public IntPtr lpOutBuffer;
+            public uint dwOutSize;
+            public IntPtr lpStatusBuffer;
+            public uint dwStatusSize;
+            public IntPtr lpXmlBuffer;
+            public uint dwXmlSize;
+            public byte byDataType;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 23, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_THERMOMETRY_COND
+        {
+            public uint dwSize;
+            public uint dwChannel;
+            public ushort wPresetNo;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 62, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_THERMOMETRY_TRIGGER_COND
+        {
+            public uint dwSize;
+            public uint dwChan;
+            public uint dwPreset;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 256, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_EVENT_TRIGGER
+        {
+            public uint dwSize;
+            public NET_DVR_HANDLEEXCEPTION_V41 struHandleException;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwRelRecordChan;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_PRESETCHAN_INFO[] struPresetChanInfo;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_CRUISECHAN_INFO[] struCruiseChanInfo;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_PTZTRACKCHAN_INFO[] struPtzTrackInfo;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 256, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_THERMOMETRY_ALARMRULE
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = THERMOMETRY_ALARMRULE_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_THERMOMETRY_ALARMRULE_PARAM[] struThermometryAlarmRuleParam;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_THERMOMETRY_ALARMRULE_PARAM
+        {
+            public byte byEnabled;
+            public byte byRuleID;
+            public byte byRule;
+            public byte byRes;
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = NAME_LEN)]
+            public string szRuleName;
+            public float fAlert;
+            public float fAlarm;
+            public float fThreshold;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+        }
+
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_THERMOMETRY_ALARM
+        {
+            public uint dwSize;
+            public uint dwChannel;//ͨ����
+            public byte byRuleID;//����ID
+            public byte byThermometryUnit;//���µ�λ: 0-���϶ȣ��棩��1-���϶ȣ��H����2-������(K)
+            public ushort wPresetNo; //Ԥ�õ��
+            public NET_PTZ_INFO struPtzInfo;//ptz������Ϣ
+            public byte byAlarmLevel;//0-Ԥ�� 1-����
+            public byte byAlarmType;/*�������� 0-����¶� 1-����¶� 2-ƽ���¶� 3-�²� 4-�¶�ͻ�� 5-�¶�ͻ��*/
+            public byte byAlarmRule;//0-���ڣ�1-С��
+            public byte byRuleCalibType;//����궨���� 0-�㣬1-��2��
+            public NET_VCA_POINT struPoint;//��������꣨������궨����Ϊ���ʱ����Ч��
+            public NET_VCA_POLYGON struRegion;//���򣨵�����궨����Ϊ���ʱ����Ч��
+            public float fRuleTemperature;/*���ù����¶�,��ȷ��С�����һλ(-40-1000),��������+100�� */
+            public float fCurrTemperature;/*��ǰ�¶�,��ȷ��С�����һλ(-40-1000),��������+100�� */
+            public uint dwPicLen;//�ɼ���ͼƬ����
+            public uint dwThermalPicLen;//�ȳ���ͼƬ����
+            public uint dwThermalInfoLen;//�ȳ��񸽼���Ϣ����
+            public IntPtr pPicBuff; ///�ɼ���ͼƬָ��
+            public IntPtr pThermalPicBuff;// �ȳ���ͼƬָ��
+            public IntPtr pThermalInfoBuff; //�ȳ��񸽼���Ϣָ��
+            public NET_VCA_POINT struHighestPoint;//�ߡ����������¶�λ�����꣨������궨����Ϊ�ߡ����ʱ����Ч��
+            public float fToleranceTemperature;/* �ݲ��¶�,��ȷ��С�����һλ(-40-1000),��������+100�� */
+            public uint dwAlertFilteringTime;//�¶�Ԥ���ȴ�ʱ�� ��λ�� ��ΧΪ0-200�룬Ĭ��Ϊ0��
+            public uint dwAlarmFilteringTime;//�¶ȱ����ȴ�ʱ�� ��λ�� ��ΧΪ0-200�룬Ĭ��Ϊ0��
+            public uint dwTemperatureSuddenChangeCycle;//�¶�ͻ���¼���ڣ���λ��
+            public float fTemperatureSuddenChangeValue;//�¶�ͻ��ֵ,��ȷ��С�����һλ(����0)
+            public byte byPicTransType;        //ͼƬ���ݴ��䷽ʽ: 0-�����ƣ�1-url
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public uint dwVisibleChannel; //�ɼ���ͨ��ͨ����
+            public uint dwRelativeTime;     // ���ʱ��
+            public uint dwAbsTime;          // ����ʱ��
+            public float fAlarmRuleTemperature;/* TMA�������ù����¶�,��ȷ��С�����һλ(-40-1000),��������+100�� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_SDK_MANUALTHERM_BASICPARAM
+        {
+            public uint dwSize;
+            public ushort wDistance;//����(m)[0, 10000]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1; //����
+            public float fEmissivity;//������(������ ��ȷ��С�������λ)[0.01, 1.00](��������������������ı���)
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; //����
+        }
+
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_SDK_POINT_THERMOMETRY
+        {
+            public float fPointTemperature;/*����µ�ǰ�¶�, ���궨Ϊ0-��ʱ��Ч����ȷ��С�����һλ(-40-1000),��������+100��*10 */
+            public NET_VCA_POINT struPoint;//��������꣨������궨����Ϊ���㡱��ʱ����Ч��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_SDK_REGION_THERMOMETRY
+        {
+            public float fMaxTemperature;//����¶�,��ȷ��С�����һλ(-40-1000),��������+100��*10 */
+            public float fMinTemperature;//����¶�,��ȷ��С�����һλ(-40-1000),��������+100��*10 */
+            public float fAverageTemperature;//ƽ���¶�,��ȷ��С�����һλ(-40-1000),��������+100��*10 */
+            public float fTemperatureDiff;//�²�,��ȷ��С�����һλ(-40-1000),��������+100��*10 */
+            public NET_VCA_POLYGON struRegion;//�����ߣ�������궨����Ϊ���򡱻��ߡ��ߡ���ʱ����Ч��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_SDK_MANUALTHERM_RULE
+        {
+            public byte byRuleID;//����ID 0-��ʾ��Ч����1��ʼ ��list�ڲ��ж�������Ч�ԣ�
+            public byte byEnable;//�Ƿ�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] szRuleName;//��������
+            public byte byRuleCalibType;//����궨���� 0-�㣬1-��2-��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+            public NET_SDK_POINT_THERMOMETRY struPointTherm;//����£����궨Ϊ0-��ʱ��Ч
+            public NET_SDK_REGION_THERMOMETRY struRegionTherm; //������£����궨Ϊ1-��2-��ʱ��Ч��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 512, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_SDK_MANUAL_THERMOMETRY
+        {
+            public uint dwSize;//�ṹ���С
+            public uint dwChannel;//ͨ����
+            public uint dwRelativeTime; // ���ʱ�ֻ꣨����
+            public uint dwAbsTime;      // ����ʱ�ֻ꣨����
+            public byte byThermometryUnit;//���µ�λ: 0-���϶ȣ��棩��1-���϶ȣ��H����2-������(K)
+            public byte byDataType;//����״̬����:0-����У�1-��ʼ��2-������ֻ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 6, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_SDK_MANUALTHERM_RULE struRuleInfo;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 512, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //ʵʱ�¶ȼ�������ṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_REALTIME_THERMOMETRY_COND
+        {
+            public uint dwSize;
+            public uint dwChan;//ͨ���ţ���1��ʼ��0xffffffff������ȡȫ��ͨ��
+            public byte byRuleID; //����ID 0-������ȡȫ�����򣬾������ID��1��ʼ 
+             /*
+              * 1-��ʱģʽ���豸ÿ��һ���ϴ���������������ݵ�����¡�����º�ƽ���¶�ֵ���²�
+              * 2-�²�ģʽ������һ������һ�������»�������»���ƽ���»����²�ֵ���²���ڵ���2���϶ȣ����ϴ�����¡�����º�ƽ���¶�ֵ�������ڵ���һ��Сʱ�²�ֵ��С��2���϶ȣ����ϴ�����¡�����¡�ƽ���º��²�ֵ
+              */
+            public byte byMode; //������ģʽ�� 0-������Ϊ�������豸����1-��ʱģʽ��2-�²�ģʽ
+            public ushort wInterval; //�ϴ���������²�ģʽ֧�֣�1~3600S����0��Ĭ��3600S�ϴ�һ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 60, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; //����
+        }
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_POINT_THERM_CFG
+        {
+            public float fTemperature;//��ǰ�¶�
+            public NET_VCA_POINT struPoint;//��������꣨������궨����Ϊ���ʱ����Ч��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 120, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_LINEPOLYGON_THERM_CFG
+        {
+            public float fMaxTemperature;//�����
+            public float fMinTemperature;//�����
+            public float fAverageTemperature;//ƽ����
+            public float fTemperatureDiff;//�²�
+            public NET_VCA_POLYGON struRegion;//���򣨵�����궨����Ϊ��/�ߵ�ʱ����Ч��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_THERMOMETRY_UPLOAD
+        {
+            public uint dwSize;
+            public uint dwRelativeTime;     // ���ʱ��
+            public uint dwAbsTime;            // ����ʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] szRuleName;//��������
+            public byte byRuleID;//����ID��
+            public byte byRuleCalibType;//����궨���� 0-�㣬1-��2-��
+            public ushort wPresetNo; //Ԥ�õ��
+            public NET_DVR_POINT_THERM_CFG struPointThermCfg;
+            public NET_DVR_LINEPOLYGON_THERM_CFG struLinePolygonThermCfg;
+            public byte byThermometryUnit;//���µ�λ: 0-���϶ȣ��棩��1-���϶ȣ��H����2-������(K)
+            public byte byDataType;//����״̬����:0-����У�1-��ʼ��2-����
+            public byte byRes1;
+            /*
+                bit0-���ĵ���£�0-��֧�֣�1-֧�֣�
+                bit1-��ߵ���£�0-��֧�֣�1-֧�֣�
+                bit2-��͵���£�0-��֧�֣�1-֧�֣�
+            */
+            public byte bySpecialPointThermType;// �Ƿ�֧����������
+            public float fCenterPointTemperature;//���ĵ��¶�,��ȷ��С�����һλ(-40-1500),��������+100��*10 ����bySpecialPointThermType�ж��Ƿ�֧�����ĵ㣩
+            public float fHighestPointTemperature;//��ߵ��¶�,��ȷ��С�����һλ(-40-1500),��������+100��*10����bySpecialPointThermType�ж��Ƿ�֧����ߵ㣩
+            public float fLowestPointTemperature;//��͵��¶�,��ȷ��С�����һλ(-40-1500),��������+100��*10����bySpecialPointThermType�ж��Ƿ�֧����͵㣩
+            public NET_VCA_POINT struHighestPoint;//�ߡ����������¶�λ�����꣨������궨����Ϊ�ߡ����ʱ����Ч��
+            public NET_VCA_POINT struLowestPoint;//�ߡ����������¶�λ�����꣨������궨����Ϊ�ߡ����ʱ����Ч��
+            public byte yIsFreezedata;//�Ƿ����ݶ��� 0-�� 1-��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+            public uint dwChan; //ͨ���ţ���ѯ������ͨ����Ϊ0xffffffffʱ���ֶ���Ч
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 88, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+        /***************************** end *********************************************/
+
+        /*******************************���ݽṹ begin********************************/
+        //��ȡ�����豸��Ϣ�ӿڶ���
+        public const int DESC_LEN_32 = 32;   //�����ֳ���
+        public const int MAX_NODE_NUM = 256;  //�ڵ����
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DESC_NODE
+        { 
+            public int iValue; 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = DESC_LEN_32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDescribe; //�����ֶ� 
+            public uint dwFreeSpace; //��ȡ�����б�ר��,��λΪM
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 12, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;			  //����  
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DISKABILITY_LIST
+        { 
+            public uint dwSize;            //�ṹ����
+            public uint dwNodeNum;		 //����������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_NODE_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_DESC_NODE[] struDescNode;  //��������  
+        }
+
+        //���ݽ����б�
+        public const int BACKUP_SUCCESS            =    100;  //�������
+        public const int BACKUP_CHANGE_DEVICE      =    101;  //�����豸�����������豸��������
+
+        public const int BACKUP_SEARCH_DEVICE      =    300;  //�������������豸
+        public const int BACKUP_SEARCH_FILE        =    301;  //��������¼���ļ�
+        public const int BACKUP_SEARCH_LOG_FILE    =    302;  //����������־�ļ�
+
+        public const int BACKUP_EXCEPTION		   =    400;  //�����쳣
+        public const int BACKUP_FAIL			   =	500;  //����ʧ��
+
+        public const int BACKUP_TIME_SEG_NO_FILE   =    501;  //ʱ�������¼���ļ�
+        public const int BACKUP_NO_RESOURCE        =    502;  //���벻����Դ
+        public const int BACKUP_DEVICE_LOW_SPACE   =    503;  //�����豸��������
+        public const int BACKUP_DISK_FINALIZED     =    504;  //��¼���̷���
+        public const int BACKUP_DISK_EXCEPTION     =    505;  //��¼�����쳣
+        public const int BACKUP_DEVICE_NOT_EXIST   =    506;  //�����豸������
+        public const int BACKUP_OTHER_BACKUP_WORK  =    507;  //���������ݲ����ڽ���
+        public const int BACKUP_USER_NO_RIGHT      =    508;  //�û�û�в���Ȩ��
+        public const int BACKUP_OPERATE_FAIL       =    509;  //����ʧ��
+        public const int BACKUP_NO_LOG_FILE        =    510;  //Ӳ��������־
+
+        //���ݹ��̽ӿڶ���
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_BACKUP_NAME_PARAM
+        {
+            public uint dwFileNum;   //�ļ�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_RECORD_FILE_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_FINDDATA_V30[] struFileList; //�ļ��б�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = DESC_LEN_32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDiskDes;   //���ݴ�������
+            public byte byWithPlayer;      //�Ƿ񱸷ݲ�����
+            public byte byContinue;    /*�Ƿ�������� 0������ 1����*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 34, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;         //����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_BACKUP_TIME_PARAM
+        {
+            public int lChannel;        //��ʱ�䱸�ݵ�ͨ��
+            public NET_DVR_TIME struStartTime;   //���ݵ���ʼʱ��
+            public NET_DVR_TIME struStopTime;    //���ݵ���ֹʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = DESC_LEN_32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDiskDes;     //���ݴ�������
+            public byte byWithPlayer;               //�Ƿ񱸷ݲ�����
+            public byte byContinue;                 //�Ƿ�������� 0������ 1����
+            public byte byDrawFrame;			     //0 ����֡  1 ��֡
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 33, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;					 // �����ֽ� 
+        }
+        /********************************* end *******************************************/
+        public enum COMPRESSION_ABILITY_TYPE
+        {
+            COMPRESSION_STREAM_ABILITY = 0, //����ѹ������
+	        MAIN_RESOLUTION_ABILITY = 1,	//������ѹ���ֱ���
+	        SUB_RESOLUTION_ABILITY  = 2,	//������ѹ���ֱ���
+	        EVENT_RESOLUTION_ABILITY =  3,  //�¼�ѹ�������ֱ���
+	        FRAME_ABILITY = 4,				//֡������
+	        BITRATE_TYPE_ABILITY = 5,		//���������
+	        BITRATE_ABILITY = 6,			//�����
+	        THIRD_RESOLUTION_ABILITY = 7,   //������ѹ���ֱ���
+	        STREAM_TYPE_ABILITY = 8,        //��������
+	        PIC_QUALITY_ABILITY = 9,         //ͼ������
+	        INTERVAL_BPFRAME_ABILITY = 10,  //BP֡���
+	        VIDEO_ENC_ABILITY = 11,           //��Ƶ��������
+	        AUDIO_ENC_ABILITY = 12,           //��Ƶ��������
+	        VIDEO_ENC_COMPLEXITY_ABILITY = 13, //��Ƶ���븴�Ӷ�����
+	        FORMAT_ABILITY = 14, //��װ��ʽ����
+        }
+
+        //�����б�
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ABILITY_LIST
+        { 
+            public uint dwAbilityType;	//�������� COMPRESSION_ABILITY_TYPE
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;        //�����ֽ�
+            public uint dwNodeNum;		//����������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_NODE_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_DESC_NODE[]  struDescNode;  //��������  
+        }
+
+        public const int MAX_ABILITYTYPE_NUM = 12;   //���������
+
+        // ѹ�����������б�
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_COMPRESSIONCFG_ABILITY
+        { 
+            public uint dwSize;            //�ṹ����
+            public uint dwAbilityNum;		//�������͸���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ABILITYTYPE_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_ABILITY_LIST[] struAbilityNode; //��������  
+        }
+
+        //ģʽA 
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_HOLIDATE_MODEA
+        {
+            public byte byStartMonth;	// ��ʼ�� ��1��ʼ
+            public byte byStartDay;		// ��ʼ�� ��1��ʼ
+            public byte byEndMonth;		// ������ 
+            public byte byEndDay;		// ������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;		// �����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_HOLIDATE_MODEB
+        {
+            public byte byStartMonth;	// ��1��ʼ
+            public byte byStartWeekNum;	// �ڼ������� ��1��ʼ 
+            public byte byStartWeekday;	// ���ڼ�
+            public byte byEndMonth;		// ��1��ʼ
+            public byte byEndWeekNum;	// �ڼ������� ��1��ʼ 
+            public byte byEndWeekday;	// ���ڼ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;		// �����ֽ� 
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_HOLIDATE_MODEC
+        {
+            public ushort wStartYear;		// ��
+            public byte byStartMon;		// ��
+            public byte byStartDay;		// ��
+            public ushort wEndYear;		// ��
+            public byte byEndMon;		// ��
+            public byte byEndDay;		// ��
+        }
+
+        [StructLayoutAttribute(LayoutKind.Explicit)]
+        public struct NET_DVR_HOLIDATE_UNION
+        {	
+            //�������С 12�ֽ�
+            [FieldOffsetAttribute(0)]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwSize;
+            /*[FieldOffsetAttribute(0)]
+            public NET_DVR_HOLIDATE_MODEA	struModeA;	// ģʽA
+            [FieldOffsetAttribute(0)]
+            public NET_DVR_HOLIDATE_MODEB	struModeB;	// ģʽB
+            [FieldOffsetAttribute(0)]
+            public NET_DVR_HOLIDATE_MODEC	struModeC;	// ģʽC
+             * */
+        }
+
+        public enum HOLI_DATE_MODE
+        {
+            HOLIDATE_MODEA = 0,
+            HOLIDATE_MODEB,
+            HOLIDATE_MODEC
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_HOLIDAY_PARAM
+        {
+            public byte byEnable;			// �Ƿ�����
+            public byte byDateMode;			// ����ģʽ 0-ģʽA 1-ģʽB 2-ģʽC
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;			// �����ֽ�
+            public NET_DVR_HOLIDATE_UNION uHolidate;	// ��������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byName;	// ��������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;			// �����ֽ�
+        }
+
+        public const int MAX_HOLIDAY_NUM = 32;
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_HOLIDAY_PARAM_CFG
+        {
+            public uint dwSize;			// �ṹ���С
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_HOLIDAY_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_HOLIDAY_PARAM[] struHolidayParam;	// ���ղ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 40, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;		// ��������
+        }
+
+        //���ձ���������ʽ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_HOLIDAY_HANDLE
+        {
+            public uint dwSize;				// �ṹ���С
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[] struAlarmTime;	// ����ʱ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 240, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;		// �����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_HOLIDAY_RECORD
+        {
+            public uint dwSize;
+            public NET_DVR_RECORDDAY struRecDay;     // ¼�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_RECORDSCHED[] struRecordSched; // ¼��ʱ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;      //  �����ֽ�
+        }
+
+        public const int MAX_LINK_V30 = 128;
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ONE_LINK
+        {
+            public NET_DVR_IPADDR  struIP;     // �ͻ���IP
+            public int lChannel;   // ͨ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;  // �����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_LINK_STATUS
+        {
+            public uint dwSize;      // �ṹ���С
+            public ushort wLinkNum;    // ���ӵ���Ŀ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;  // �����ֽ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_LINK_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_ONE_LINK[] struOneLink;   // ���ӵĿͻ�����Ϣ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;  // �����ֽ�
+        }
+
+        public const int MAX_BOND_NUM = 2;
+
+                //��BONDING�������ýṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_ONE_BONDING
+        {
+            public byte byMode;
+            public byte byUseDhcp;
+            public byte byMasterCard;
+            public byte byStatus;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_NETWORK_CARD, ArraySubType = UnmanagedType.I1)]
+            public byte[] byBond;
+            public NET_DVR_ETHERNET_V30 struEtherNet;
+            public NET_DVR_IPADDR struGatewayIpAddr;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //BONDING�������ýṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_NETWORK_BONDING
+        {  
+            public uint dwSize;  
+            public byte byEnable;
+            public byte byNum;  
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_BOND_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_ONE_BONDING[] struOneBond;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 40, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+
+        //�������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DISK_QUOTA 
+        {
+            public byte byQuotaType;	 // �����������,1 - ������ 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 7, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;       // �����ֽ�
+            public uint dwHCapacity;     // ����Ĵ���������32λ ��λMB
+            public uint dwLCapacity;     // ����Ĵ���������32λ ��λMB
+            public uint dwHUsedSpace;    // ��ʹ�õĴ��̴�С��32λ ��λMB
+            public uint dwLUsedSpace;    // ��ʹ�õĴ��̴�С��32λ ��λMB
+            public byte byQuotaRatio;    //	����Ĵ��̱���,��λ:%
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 21, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;      // �����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DISK_QUOTA_CFG
+        {
+            public uint dwSize;         // �ṹ���С
+            public NET_DVR_DISK_QUOTA struPicQuota;    //  ͼƬ���
+            public NET_DVR_DISK_QUOTA struRecordQuota;    //  ¼�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 60, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;      //�����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_TIMING_CAPTURE
+        {
+            public NET_DVR_JPEGPARA struJpegPara;   // ��ʱץͼͼƬ����
+            public uint dwPicInterval; //��ʱץͼʱ����,��λs   1-1s 2-2s 3-3s 4-4s 5-5s 
+                                       //6-10m 7-30m 8-1h 9-12h 10-24h
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 12, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;      // �����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_REL_CAPTURE_CHAN
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byChan;    // ��λ��ʾ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;          // �����ֽ�
+        }
+
+        public const int MAX_PIC_EVENT_NUM = 32;
+        public const int MAX_ALARMIN_CAPTURE = 16;
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_REL_CAPTURE_CHAN_V40
+        {
+            public uint dwMaxRelCaptureChanNum;  //���ɴ����Ĺ���ͨ����-ֻ������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwChanNo; //�����Ĺ���ץͼͨ���ţ���ֵ��ʾ�����ý���������,0xffffffff��ʾ������Ч
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_EVENT_CAPTURE_V40
+        {
+            public NET_DVR_JPEGPARA struJpegPara;   // �¼�ץͼͼƬ����
+            public uint dwPicInterval;   // �¼�ץͼʱ����  ��λΪ�� 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_PIC_EVENT_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_REL_CAPTURE_CHAN_V40[] struRelCaptureChan;   // �����±� 0 �ƶ���ⴥ��ץͼ 1 ��Ƶ�ڵ�����ץͼ 2 ��Ƶ��ʧ����ץͼ,����3��ʾPIR����ץͼ������4��ʾ���߱���ץͼ������5��ʾ���ȱ���ץͼ,����6��ʾ����ץͼ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ALARMIN_CAPTURE, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_REL_CAPTURE_CHAN_V40[] struAlarmInCapture;    // �������봥��ץͼ���±�0 ������������1 ��������
+            public uint dwMaxGroupNum;  //�豸֧�ֵ���󱨾�����������ÿ��16����������
+            public byte byCapTimes; //ץͼ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 59, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_EVENT_CAPTURE
+        {
+            public NET_DVR_JPEGPARA  struJpegPara;   // �¼�ץͼͼƬ����
+            public uint dwPicInterval;  /*�¼�ץͼʱ����  ��λΪ��  1-1s 2-2s 3-3s 4-4s 5-5s 
+                                             * 6-10m 7-30m 8-1h 9-12h 10-24h*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_PIC_EVENT_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_REL_CAPTURE_CHAN[] struRelCaptureChan; /* �����±� 0 �ƶ���ⴥ��ץͼ 1 ��Ƶ�ڵ�����ץͼ,
+                                                                   * 2 ��Ƶ��ʧ����ץͼ,����3��ʾPIR����ץͼ������4��ʾ���߱���ץͼ��
+                                                                   * ����5��ʾ���ȱ���ץͼ,����6��ʾ����ץͼ�� ����7��ʾ�������*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ALARMIN_CAPTURE, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_REL_CAPTURE_CHAN[] struAlarmInCapture;  //�������봥��ץͼ���±�0 ������������1 ��������
+            public byte byCapTimes; //ץͼ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 59, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_JPEG_CAPTURE_CFG_V40
+        {
+            public uint dwSize;               //�ṹ�峤��
+            public NET_DVR_TIMING_CAPTURE struTimingCapture;    
+            public NET_DVR_EVENT_CAPTURE_V40 struEventCapture;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes3;     // �����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_JPEG_CAPTURE_CFG
+        {
+            public uint dwSize;         // �ṹ���С
+            public NET_DVR_TIMING_CAPTURE struTimingCapture;    
+            public NET_DVR_EVENT_CAPTURE struEventCapture;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes3;     // �����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CAPTURE_DAY
+        {
+            public byte byAllDayCapture;	// �Ƿ�ȫ��ץͼ
+            public byte byCaptureType;		// ץͼ���ͣ�0-��ʱץͼ��1-�ƶ����ץͼ��2-����ץͼ��3-�ƶ����򱨾�ץͼ��4-�ƶ����ͱ���ץͼ��6-���ܱ���ץͼ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CAPTURE_SCHED
+        {
+            public NET_DVR_SCHEDTIME struCaptureTime;        // ץͼʱ���
+            public byte byCaptureType;       // ץͼ���ͣ�0-��ʱץͼ��1-�ƶ����ץͼ��2-����ץͼ��3-�ƶ����򱨾�ץͼ��4-�ƶ����ͱ���ץͼ��6-���ܱ���ץͼ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;           // �����ֽ�
+        }
+
+        //ͨ��ץͼ�ƻ�
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SCHED_CAPTURECFG
+        {
+            public uint dwSize;     //�ṹ��
+            public byte byEnable;	//�Ƿ�ץͼ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;	//�����ֽ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_CAPTURE_DAY[] struCaptureDay;//ȫ��ץͼ�ƻ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_CAPTURE_SCHED[] struCaptureSched;//ʱ���ץͼ�����ƻ�
+            public NET_DVR_CAPTURE_DAY	struCaptureHoliday;	//����ץͼ�ƻ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_TIMESEGMENT_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_CAPTURE_SCHED[] struHolidaySched;	//ʱ��μ���ץͼ�����ƻ�
+            public uint dwRecorderDuration;	//ץͼ�����ʱ�� 0xffffffff��ʾ��ֵ��Ч 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 40, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;			//�����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FLOW_TEST_PARAM
+        {
+            public uint dwSize;              //�ṹ��С
+            public int lCardIndex;         //��������
+            public uint dwInterval;         //�豸�ϴ�����ʱ����, ��λ:100ms
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;           //�����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FLOW_INFO
+        {
+            public uint dwSize;             //�ṹ��С
+            public uint dwSendFlowSize;     //����������С,��λkbps
+            public uint dwRecvFlowSize;     //����������С,��λkbps
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;          //���� 
+        }
+
+        //¼���ǩ
+        public const int LABEL_NAME_LEN = 40;
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_RECORD_LABEL
+        {
+            public uint dwSize;					// �ṹ���С
+            public NET_DVR_TIME struTimeLabel;			// ��ǩ��ʱ�� 
+            public byte byQuickAdd;				// �Ƿ�������� ��������ʱ��ǩ������Ч
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;				// �����ֽ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = LABEL_NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sLabelName;	// ��ǩ������ ����Ϊ40�ֽ�  
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 40, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;				// �����ֽ�
+        }
+
+        public const int LABEL_IDENTIFY_LEN = 64;
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_LABEL_IDENTIFY
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = LABEL_IDENTIFY_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sLabelIdentify;    // 64�ֽڱ�ʶ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;               // �����ֽ�
+        }
+
+        public const int MAX_DEL_LABEL_IDENTIFY = 20;// ɾ��������ǩ��ʶ����
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DEL_LABEL_PARAM
+        {
+            public uint dwSize;       // �ṹ���С
+            public byte byMode;   // ��λ��ʾ,0x01��ʾ����ʶɾ��
+            public byte byRes1;
+            public ushort wLabelNum;      // ��ǩ��Ŀ   
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DEL_LABEL_IDENTIFY, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_LABEL_IDENTIFY[] struIndentify; // ��ǩ��ʶ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 160, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;   //�����ֽ�    
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MOD_LABEL_PARAM
+        {
+            public NET_DVR_LABEL_IDENTIFY struIndentify; //Ҫ�޸ĵı�ǩ��ʶ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 24, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = LABEL_NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sLabelName;	//�޸ĺ�ı�ǩ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 40, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;				
+        }
+
+        //��ǩ�����ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FIND_LABEL
+        {
+            public uint dwSize;          // �ṹ���С
+            public int lChannel;		// ���ҵ�ͨ��
+            public NET_DVR_TIME	struStartTime;	// ��ʼʱ��
+            public NET_DVR_TIME	struStopTime;	// ����ʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = LABEL_NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sLabelName;	//  ¼���ǩ���� �����ǩ����Ϊ�գ���������ֹʱ�����б�ǩ
+            public byte byDrawFrame;		//0:����֡��1����֡
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 39, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;		// �����ֽ�
+        }
+
+        //��ǩ��Ϣ�ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FINDLABEL_DATA
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = LABEL_NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sLabelName;	// ��ǩ����
+            public NET_DVR_TIME struTimeLabel;		// ��ǩʱ��
+            public NET_DVR_LABEL_IDENTIFY struLabelIdentify; // ��ǩ��ʶ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;			// �����ֽ�
+        }
+
+        public const int CARDNUM_LEN_V30 = 40;
+        public const int PICTURE_NAME_LEN = 64;
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FIND_PICTURE
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = PICTURE_NAME_LEN)]
+            public string sFileName;//ͼƬ��
+            public NET_DVR_TIME struTime;//ͼƬ��ʱ��
+            public uint dwFileSize;//ͼƬ�Ĵ�С
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = CARDNUM_LEN_V30)]
+            public string sCardNum;	//����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;		//  �����ֽ�
+        }
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FIND_PICTURE_PARAM
+        {
+            public uint dwSize;         // �ṹ���С 
+            public int lChannel;       // ͨ����
+            public byte byFileType;        
+            public byte byNeedCard;     // �Ƿ���Ҫ����
+            public byte byProvince;     //ʡ������ֵ
+            public byte byEventType;      // �¼����ͣ�0������1-��ͨ�¼���2-Υ��ȡ֤��3-�����¼�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = CARDNUM_LEN_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] sCardNum;     // ����
+            public NET_DVR_TIME  struStartTime;//����ͼƬ�Ŀ�ʼʱ��
+            public NET_DVR_TIME  struStopTime;// ����ͼƬ�Ľ���ʱ��
+            //ITC3.7 ����
+            public uint dwTrafficType; //ͼƬ������Ч�� �ο� VCA_OPERATE _TYPE 
+            public uint dwVehicleType; //�������� �ο� VCA_VEHICLE_TYPE
+            //Υ�������Ͳο� VCA_ILLEGAL_TYPE ��ǰ��֧�ָ�ѡ
+            public uint dwIllegalType;
+            public byte byLaneNo;  //������(1~99)
+            public byte bySubHvtType ;//0-����,1-������(��������������֧�ֳ��Ƽ�����ʡ�ݼ���),2-�ǻ�����,3-����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_LICENSE_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sLicense;    //���ƺ���
+            public byte byRegion;     // ��������ֵ 0-������1-ŷ��(Europe Region)��2-��������(Russian Region)��3-ŷ��&����˹(EU&CIS), 4-�ж�(Middle East),0xff-����
+            public byte byCountry;     // ��������ֵ�����գ�COUNTRY_INDEX 
+            public byte byArea;  //����
+            public byte byISO8601;  //�Ƿ���8601��ʱ���ʽ����ʱ���ֶ��Ƿ���Ч0-ʱ����Ч��������ʱ����Ϊ�豸����ʱ�� 1-ʱ����Ч 
+            public byte cStartTimeDifferenceH;   //��ʼʱ����UTC��ʱ�Сʱ����-12 ... +14�� ������ʾ��ʱ��
+            public byte cStartTimeDifferenceM;   //��ʼʱ����UTC��ʱ����ӣ���-30, 0, 30, 45��������ʾ��ʱ��
+            public byte cStopTimeDifferenceH;    //����ʱ����UTC��ʱ�Сʱ����-12 ... +14��������ʾ��ʱ��
+            public byte cStopTimeDifferenceM;    //����ʱ����UTC��ʱ����ӣ���-30, 0, 30, 45��������ʾ��ʱ��
+        }
+		
+		
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ADDRESS
+        {
+            public NET_DVR_IPADDR struIP; //IP��ַ
+            public ushort wPort;    //�˿ں�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Explicit)]
+        public struct NET_DVR_PIC_EXTRA_INFO_UNION
+        {
+            [FieldOffsetAttribute(0)]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 544, ArraySubType = UnmanagedType.I1)]
+            public byte[] byUnionLen;   //�����峤�ȣ���ʵ������
+        }
+
+        public const int MAX_FACE_PIC_NUM = 30;      /*������ͼ����*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FACE_EXTRA_INFO
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_FACE_PIC_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_VCA_RECT[] struVcaRect;  //������ͼ������Ϣ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FIND_PICTURE_V50
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PICTURE_NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sFileName;//ͼƬ��
+            public NET_DVR_TIME struTime;//ͼƬ��ʱ��
+            public uint dwFileSize;//ͼƬ�Ĵ�С
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = CARDNUM_LEN_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] sCardNum;    //����
+            public byte byPlateColor;//�ο��ṹ VCA_PLATE_COLOR
+            public byte byVehicleLogo;//�ο��ṹ VLR_VEHICLE_CLASS
+            public byte byFileType;  //�ļ����ͣ� :0��ʱץͼ1 �ƶ����ץͼ 2 ����ץͼ3  ���� | �ƶ����ץͼ 4 ���� & �ƶ����ץͼ     6 �ֶ�ץͼ ,9-����ͼƬ,10- PIR������11- ���߱�����12- ���ȱ���,    0xa Ԥ��ʱ��ͼ��0xd �������, 0xe Խ����⣬0xf ����������⣬0x10 ����������, 0x11-�豸���ػط�ʱ��ͼ, 0x12-�������
+            public byte byRecogResult;//ʶ�����ο��ṹVTR_RESULT
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_LICENSE_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sLicense;    //���ƺ���
+            public byte byEventSearchStatus; //����ͼƬ��ʾͬһ���ҽ����ʱ��0-��ʾ����û��ͼƬ��Ϣ��1-��ʾ���滹��ͼƬ��Ϣ���ܹ�ͼƬ��Ϣ�������һ��״̬Ϊ0��ͼƬ��
+            public NET_DVR_ADDRESS struAddr;		//ͼƬ���ڵĵ�ַ��Ϣ��ͼƬ����ʱ�õ�
+            public byte byISO8601;  //�Ƿ���8601��ʱ���ʽ����ʱ���ֶ��Ƿ���Ч0-ʱ����Ч��������ʱ����Ϊ�豸����ʱ�� 1-ʱ����Ч 
+            public byte cTimeDifferenceH;   //��UTC��ʱ�Сʱ����-12 ... +14
+            public byte cTimeDifferenceM;   //��UTC��ʱ����ӣ���-30,0, 30, 45
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 253, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;        //  �����ֽ�
+            public NET_DVR_PIC_EXTRA_INFO_UNION uPicExtraInfo; //ͼƬ������Ϣ
+        }
+
+        public const int MAX_RECORD_PICTURE_NUM = 50;   //��󱸷�ͼƬ����  
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_BACKUP_PICTURE_PARAM
+        {
+            public uint dwSize;         // �ṹ���С   
+            public uint dwPicNum;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_RECORD_PICTURE_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_FIND_PICTURE[] struPicture;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = DESC_LEN_32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDiskDes;
+            public byte byWithPlayer;
+            public byte byContinue;    /*�Ƿ�������� 0������ 1����*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 34, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_COMPRESSION_LIMIT
+        {	
+            public uint dwSize;           //�ṹ���С
+            public uint dwChannel;        //ͨ����
+            public byte byCompressType;   //����ȡ��ѹ����������1,������2,������3,�¼�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 15, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;        //����
+            public NET_DVR_COMPRESSIONCFG_V30  struCurrentCfg; //��ǰѹ����������
+        }
+
+        public const int STEP_READY      = 0;    //׼������
+        public const int STEP_RECV_DATA  = 1;    //��������������
+        public const int STEP_UPGRADE    = 2;    //����ϵͳ
+        public const int STEP_BACKUP     = 3;    //����ϵͳ
+        public const int STEP_SEARCH     = 255;  //���������ļ�
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VIDEO_EFFECT
+        {
+            public uint dwBrightValue;      //����[0,255]
+            public uint dwContrastValue;    //�Աȶ�[0,255]
+            public uint dwSaturationValue;  //���Ͷ�[0,255]
+            public uint dwHueValue;         //ɫ��[0,255]
+            public uint dwSharpness;		  //���[0,255]
+            public uint dwDenoising;		  //ȥ��[0,255]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 12, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VIDEO_INPUT_EFFECT
+        {	
+            public uint dwSize;				//�ṹ���С
+            public ushort wEffectMode;        //ģʽ 0-��׼ 1-���� 2-���� 3-����  255-�Զ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 146, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;        //����
+            public NET_DVR_VIDEO_EFFECT struVideoEffect;	//��ƵЧ������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 60, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;			//����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VIDEOPARA_V40
+        {
+            public uint dwChannel;			// ͨ����
+            public uint dwVideoParamType;  	// ��Ƶ�������� 0-���� 1-�Աȶ� 2-���Ͷ� 3-ɫ�� 4-��� 5-ȥ��
+            public uint dwVideoParamValue;  //��Ӧ����Ƶ����ֵ����Χ����������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 12, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DEFAULT_VIDEO_COND
+        {
+            public uint dwSize;			// �ṹ���С
+            public uint dwChannel;		// ͨ����
+            public uint dwVideoMode;	// ģʽ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;      // ����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ENCODE_JOINT_PARAM
+        {
+            public uint dwSize;			// �ṹ���С
+            public byte byJointed;		//  0 û�й��� 1 �Ѿ�����
+            public byte byDevType;		// ���������豸����  1 ���������豸
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;		// �����ֽ�
+            public NET_DVR_IPADDR	struIP;			// �����ı�ȡ���豸IP��ַ
+            public ushort wPort;			// �����ı�ȡ���豸�˿ں�
+            public ushort wChannel;		// �����ı�ȡ���豸ͨ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;			// �����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VCA_CHAN_WORKSTATUS
+        {
+            public byte byJointed;				// 0-û�й���  1-�Ѿ�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_DVR_IPADDR	struIP;					// ������ȡ���豸IP��ַ
+            public ushort wPort;					// ������ȡ���豸�˿ں�
+            public ushort wChannel;				// ������ȡ���豸ͨ����
+            public byte byVcaChanStatus;		// 0 - ��� 1 - ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 19, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;				// �����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VCA_DEV_WORKSTATUS
+        {
+            public uint dwSize;			// �ṹ���С
+            public byte byDeviceStatus;	// �豸��״̬0 - �������� 1- ����������
+            public byte byCpuLoad;		// CPUʹ����0-100 �ֱ����ʹ�ðٷ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_VCA_CHAN, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_VCA_CHAN_WORKSTATUS[] struVcaChanStatus;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 40, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwRes;		// �����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct UNION_VIDEOPLATFORM_V40
+        {
+            /*�����Ӵ��ڶ�Ӧ����ͨ������Ӧ�Ľ�����ϵͳ�IJ�λ��(������Ƶ�ۺ�ƽ̨�н�����ϵͳ��Ч)*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_WINDOWS, ArraySubType = UnmanagedType.I1)]
+            public byte[] byJoinDecoderId;
+            //��ʾ����������Ƶ�ֱ��ʣ�1-D1,2-720P,3-1080P���豸����Ҫ���ݴ�//�ֱ��ʽ��н���ͨ���ķ��䣬��1�������ó�1080P�����豸���4������ͨ
+            //����������˽���ͨ��
+            public byte byDecResolution;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 143, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct UNION_NOTVIDEOPLATFORM_V40
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 160, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VGA_DISP_CHAN_CFG_V40
+        {        
+            public uint dwSize; 
+            public byte byAudio;			/*��Ƶ�Ƿ���*/
+            public byte byAudioWindowIdx;      /*��Ƶ�����Ӵ���*/
+            public byte byVgaResolution;      /*�ֱ��ʣ�����������ȡ*/
+            public byte byVedioFormat;         /*1:NTSC,2:PAL��0-NULL*/
+            public uint dwWindowMode;		/*����ģʽ����������ȡ*/       
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_WINDOWS, ArraySubType = UnmanagedType.I1)]
+            public byte[] byJoinDecChan;/*�����Ӵ��ڹ����Ľ���ͨ��*/
+            public byte byEnlargeStatus;          /*�Ƿ��ڷŴ�״̬��0�����Ŵ�1���Ŵ�*/
+            public byte byEnlargeSubWindowIndex;//�Ŵ���Ӵ��ں�
+            public byte byScale; /*��ʾģʽ��0---��ʵ��ʾ��1---������ʾ( ���BNC )*/
+	        /*���ֹ����壬0-��Ƶ�ۺ�ƽ̨�ڲ���������ʾͨ�����ã�1-������������ʾͨ������*/
+            public byte byUnionType;
+	
+            [StructLayoutAttribute(LayoutKind.Explicit)]
+            public struct struDiff
+            {
+                [FieldOffsetAttribute(0)]
+		        [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 160, ArraySubType = UnmanagedType.I1)]
+                public byte[] byRes;
+
+                /*[FieldOffsetAttribute(0)]
+                public UNION_VIDEOPLATFORM_V40 struVideoPlatform;
+
+                [FieldOffsetAttribute(0)]
+                public UNION_NOTVIDEOPLATFORM_V40 struNotVideoPlatform;
+                 * */
+	        }
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 120, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_V6SUBSYSTEMPARAM
+        {
+            public byte bySerialTrans;//�Ƿ�͸����0-��1-��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 35, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        public const int NET_DVR_V6PSUBSYSTEMARAM_GET = 1501;//��ȡV6��ϵͳ����
+        public const int NET_DVR_V6PSUBSYSTEMARAM_SET = 1502;//����V6��ϵͳ����
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CORRECT_DEADPIXEL_PARAM
+        {
+            public uint dwSize;
+            public uint dwCommand; //���0-���뻵��ģʽ��1-���ӻ��㣬2-���滵�㣬3-�˳�����
+            public uint dwDeadPixelX; //����X����
+            public uint dwDeadPixelY; //����Y����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 12, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; //����
+        }
+
+        public const int MAX_REDAREA_NUM = 6;   //�����̵��������
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_REDAREACFG
+        {
+            public uint dwSize;
+            public uint dwCorrectEnable; //�Ƿ���У�����ܣ�0-�رգ�1-����
+            public uint dwCorrectLevel; //У������1(У�������)-10(У�������),Ĭ��Ϊ5
+            public uint dwAreaNum; //���������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_REDAREA_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_VCA_RECT[] struLaneRect; //������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2; //����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_HISTORICDATACFG
+        {
+            public uint dwSize;
+            public uint dwTotalNum;  //��ʷ���ݸ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        public const int INQUEST_MESSAGE_LEN  = 44;    //��Ѷ�ص�����Ϣ����
+        public const int INQUEST_MAX_ROOM_NUM = 2;    //�����Ѷ�Ҹ���
+        public const int MAX_RESUME_SEGMENT   = 2;     //֧��ͬʱ�ָ���Ƭ����Ŀ
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_INQUEST_ROOM
+        {
+            public byte byRoomIndex;     //��Ѷ�ұ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 23, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;       //����
+        }
+
+        public const int MAX_INQUEST_CDRW_NUM = 4;     //����¼����Ŀ
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_INQUEST_CDRW_STATUS
+        { 
+            /*����״̬��0-��Ѷ��ʼ��
+             * 1-��Ѷ�����п�¼��2-��Ѷֹͣ��
+             * 3-��¼��Ѷ�ļ�, 
+             * 4-����(�º󱸷ݺͱ��ر���)
+             * 5-����
+             * 6-��ʼ��Ӳ��
+             * 7-�ָ���Ѷ*/
+            public uint dwType;            
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_INQUEST_CDRW_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_INQUEST_CDRW[] strCDRWNum;   //����0��ʾ��¼��1    
+            public NET_DVR_TIME_EX struInquestStartTime;        //��Ѷ��ʼ��ʱ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;             //����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_INQUEST_CDRW
+        {     
+            public uint dwEnable;            //��¼��״̬�Ƿ���Ч,0-��Ч,1-��Ч    
+            public uint dwStatus;            /* ��dwType=0ʱ��
+                                                            0-����������1-�޹��̻�����쳣,
+                                                            ��dwType=1��2ʱ��
+                                                            0-��¼������1-�޹��̻�����쳣��
+                                                            2-�����ѷ���(81��֧��)��3-���̿ռ䲻�㣬
+                                                            4-�쳣������Ѷ��ֹ(81��֧��)
+                                                            ��dwType=3ʱ��
+                                                            0-��¼������1-�޹��̻�����쳣��
+                                                            2-�����ѷ���(81��֧��)��3-���̿ռ䲻��
+                                                            ��dwType=4ʱ��
+                                                            0-��¼������1-�޹��̻�����쳣��
+                                                            2-�����ѷ���(81��֧��)��3-���̿ռ䲻��
+                                                            ��dwType=5ʱ,
+                                                            0-���������� 1-�޹��̻�����쳣,
+                                                            2-�����ѷ���(81��֧��)
+                                                            ��dwType=6��7ʱ,
+                                                            0-��¼����, 1-�޹��̻�����쳣,
+                                2-�����ѷ���(81��֧��), 3-���̿ռ䲻��*/        
+            public uint dwVolumn;      //��������,��λM
+            public uint dwFreeSpace;   //����ʣ������,��λM    
+            public uint dwTimeLeft;     // ����ʣ��ʱ�䣬��λ��
+            public byte byCDType;         // ��������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;      //�����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_INQUEST_CDRW_CFG
+        {
+            public uint dwSize;
+            public uint dwNum;                       //��¼��������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.U4)]
+            public uint[]dwRwSelectPara;// �Ƿ�ѡ�иù���
+            public uint dwModeSelect;                //0��ʾѭ����¼ģʽ  1��ʾ���п�¼ģʽ(Ĭ��ģʽ)
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 24, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;                   //����
+            public uint dwStartCDRW;                 //DVR �����Ѿ���ʼ��¼
+            public uint dwHdExcp;                    //Ӳ������ ��
+            public uint dwInterval;                  //ʱ������10����(0)��20����(1)��30����(2)
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] sLable;                  //��������
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_INQUEST_MESSAGE
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = INQUEST_MESSAGE_LEN)]
+            public string sMessage; //�ص�����Ϣ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 46, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;                     //����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_INQUEST_SENSOR_DEVICE
+        {
+            public ushort wDeviceType;	//���ݲɼ��豸�ͺ�:0-�� 1-���� 2-�ز� 3-���� 4-���� 5-���ء�6-���ϡ�7-ά��˹��
+            public ushort wDeviceAddr;	//���ݲɼ��豸��ַ	
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 28, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;	    //����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_INQUEST_SENSOR_INFO
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = INQUEST_MAX_ROOM_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_INQUEST_SENSOR_DEVICE[] struSensorDevice;
+            public uint  dwSupportPro;      //֧��Э������,��λ��ʾ, �°汾����������������չ���ֶ�
+							   //0x1:���� 0x2:�ز� 0x4:����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 120, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;        //����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_INQUEST_ROOM_INFO
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = NAME_LEN)]
+            public string szCDName;	//�������ƣ�����˫�̹���������һ����
+            [StructLayoutAttribute(LayoutKind.Explicit)]
+            public struct uCalcMode
+	        {
+                [FieldOffsetAttribute(0)]
+                public byte byBitRate;	// byCalcTypeΪ0ʱ��Ч��(0-32��1-48��2-64��3-80��4-96��5-128��
+								//6-160��7-192��8-224��9-256��10-320��11-384��12-448��
+								//13-512��14-640��15-768��16-896ǰ16��ֵ����)17-1024��18-1280��19-1536��
+								//20-1792��21-2048��22-3072��23-4096��24-8192
+                [FieldOffsetAttribute(0)]
+                public byte byInquestTime;  // byCalcTypeΪ1ʱ��Ч��0-1Сʱ, 1-2Сʱ,2-3Сʱ,3-4Сʱ, 4-6Сʱ,5-8Сʱ
+		                        //8-16Сʱ, 9-20Сʱ,10-22Сʱ,11-24Сʱ
+	        }
+            public byte byCalcType;			//��¼��������0-������ 1-��ʱ��
+            public byte byAutoDelRecord;	// �Ƿ��Զ�ɾ��¼��0-��ɾ����������ʱ����¼�� 1-ɾ��
+            public byte byAlarmThreshold;		// ����������ֵ
+            public byte byInquestChannelResolution;     //��Ѷͨ���ֱ��ʣ�0:720P  1:1080P
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 11, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_INQUEST_SYSTEM_INFO
+        {
+            public uint dwRecordMode;         //��¼ģʽ:1 ����˫��ģʽ 2 �����ֿ�ģʽ 3 ˫��˫��ģʽ���޸���Ҫ�����豸��
+            public uint  dwWorkMode;           //����ģʽ:0 ��׼ģʽ 1 ͨ��ģʽ(������Ŀǰֻ�б�׼ģʽ)
+            public uint dwResolutionMode;     //�豸�ֱ��ʣ�0:���� 1:D1 2:720P 3:1080P��������Ѷ�����ô��ֶΣ�
+            public NET_DVR_INQUEST_SENSOR_INFO struSensorInfo;  //��ʪ�ȴ���������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = INQUEST_MAX_ROOM_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_INQUEST_ROOM_INFO[] struInquestRoomInfo;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 24, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;	
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_INQUEST_RESUME_SEGMENT
+        {
+            public NET_DVR_TIME  struStartTime; //�¼���ʼʱ��
+            public NET_DVR_TIME  struStopTime;  //�¼���ֹʱ��
+            public byte byRoomIndex;         //��Ѷ�ұ��,��1��ʼ
+            public byte byDriveIndex;        //��¼�����,��1��ʼ
+            public ushort wSegmetSize;         //��Ƭ�ϵĴ�С, ��λM 
+            public uint dwSegmentNo;         //��Ƭ���ڱ�����Ѷ�е����,��1��ʼ 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 24, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;           //����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_INQUEST_RESUME_EVENT
+        {
+            public uint  dwResumeNum;       //��ָ����¼�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_RESUME_SEGMENT, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_INQUEST_RESUME_SEGMENT[] struResumeSegment;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 200, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;        //����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_INQUEST_DEVICE_VERSION
+        {
+            public byte byMainVersion;         /*�������汾.
+								   0 : δ֪
+								   1 : 8000��ѶDVR
+								       �ΰ汾: 1 : 8000HD-S
+								   2 : 8100��ѶDVR 
+									   �ΰ汾: 1 : ��Ѷ81SNL
+											   2 : ��Ѷ81SH
+											   3 : ��Ѷ81SFH
+								   3 : 8608������Ѷ��NVR 
+									   �ΰ汾: 1 : DS-8608SN-SP
+											   2 : DS-8608SN-ST
+									  */
+            public byte bySubVersion;          //���ߴΰ汾
+            public byte byUpgradeVersion;      //�����汾,δ����Ϊ0
+            public byte byCustomizeVersion;     //���ư汾,�Ƕ���Ϊ0
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 60, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;             //����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DISK_RAID_INFO 
+        {
+            public uint dwSize;   //�ṹ���С
+            public byte byEnable;  //����Raid�Ƿ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 35, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;  //�����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SYNCHRONOUS_IPC
+        {
+            public uint dwSize;    //�ṹ���С
+            public byte byEnable;  //�Ƿ����ã�Ϊǰ��IPCͬ���豸����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 7, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;  //����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IPC_PASSWD
+        {
+            public uint dwSize;    //�ṹ���С
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = PASSWD_LEN)]
+            public string sOldPasswd;  //IPC�ľ����룬����DVR��DVR��֤
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = PASSWD_LEN)]
+            public string sNewPasswd;  //IPC��������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //ͨ����ȡDVR������״̬����λbps
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DEVICE_NET_USING_INFO 
+        {
+            public uint dwSize;    //�ṹ���С
+            public uint dwPreview;   //Ԥ��
+            public uint dwPlayback;  //�ط�
+            public uint dwIPCModule; //IPC����
+            public uint dwNetDiskRW; //���̶�д
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] res;
+        }
+
+        //ͨ��DVR����ǰ��IPC��IP��ַ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IPC_NETCFG
+        {
+            public uint dwSize;      //�ṹ���С
+            public NET_DVR_IPADDR struIP;       //IPC��IP��ַ
+            public ushort wPort;       //IPC�Ķ˿�
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 126)]
+            public string res;  
+        }
+
+        //��ʱ������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_TIME_LOCK
+        {
+            public uint dwSize;      //�ṹ���С
+            public NET_DVR_TIME strBeginTime;
+            public NET_DVR_TIME strEndTime;
+            public uint dwChannel;        //ͨ����, 0xff��ʾ����ͨ��
+            public uint dwRecordType;     //¼������:  0xffffffff��ȫ����0����ʱ¼��1-�ƶ���⣬2������������3-�����������ƶ���⣬4-�����������ƶ���⣬5-�������6-�ֶ�¼��7-����¼��(ͬ�ļ�����)
+            public uint dwLockDuration;   //��������ʱ��,��λ��,0xffffffff��ʾ��������
+            public NET_DVR_TIME_EX strUnlockTimePoint;	//����ʱ��Ч����dwLockDuration��Ϊ��������ʱ������������ʱ�䵽��ʱ�����Զ�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_LOCK_RETURN
+        {
+            public uint dwSize;      //�ṹ���С
+            public NET_DVR_TIME strBeginTime; 
+            public NET_DVR_TIME strEndTime;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //67DVS
+        //֤����������
+        public enum NET_SDK_UPLOAD_TYPE 
+        {
+            UPGRADE_CERT_FILE = 0, 
+	        UPLOAD_CERT_FILE = 1,
+	        TRIAL_CERT_FILE = 2,
+            CONFIGURATION_FILE = 3
+        }
+
+        public enum NET_SDK_DOWNLOAD_TYPE
+        {
+	        NET_SDK_DOWNLOAD_CERT = 0,		//����֤��
+	        NET_SDK_DOWNLOAD_IPC_CFG_FILE = 1,//����IPC�����ļ�
+            NET_SDK_DOWNLOAD_BASELINE_SCENE_PIC = 2, //���ػ�׼����ͼƬ
+	        NET_SDK_DOWNLOAD_VQD_ALARM_PIC = 3,       //����VQD����ͼƬ
+            NET_SDK_DOWNLOAD_CONFIGURATION_FILE=4   //���������ļ�
+        }
+
+        //����״̬
+       public enum NET_SDK_DOWNLOAD_STATUS
+       {
+	        NET_SDK_DOWNLOAD_STATUS_SUCCESS = 1,	//���سɹ�
+	        NET_SDK_DOWNLOAD_STATUS_PROCESSING,		//��������
+	        NET_SDK_DOWNLOAD_STATUS_FAILED,			//����ʧ��
+	        NET_SDK_DOWNLOAD_STATUS_UNKOWN_ERROR	//δ֪���� 
+       }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_BONJOUR_CFG
+        {
+            public uint dwSize;				// �ṹ���С
+            public byte byEnableBonjour;		// Bonjourʹ�� 0 ������ 1���ر�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;				
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DOMAIN_NAME, ArraySubType = UnmanagedType.I1)]
+            public byte[] byFriendlyName; 	// ������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SOCKS_CFG
+        {
+            public uint dwSize;				// �ṹ���С
+            public byte byEnableSocks;  		// ʹ�� 0���ر� 1������
+            public byte byVersion;  			// SOCKS�汾 4��SOCKS4   5��SOCKS5
+            public ushort wProxyPort;				// �����˿ڣ�Ĭ��1080
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DOMAIN_NAME, ArraySubType = UnmanagedType.I1)]
+            public byte[] byProxyaddr;  	// ����IP��ַ������������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DOMAIN_NAME, ArraySubType = UnmanagedType.I1)]
+            public byte[] byUserName; 	// �û��� SOCKS����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byPassword;			// ����SOCKS5����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_LOCAL_ADDR_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byLocalAddr;  //��ʹ��socks���������Σ���ʽΪ"ip/netmask;ip/netmask;��"
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_QOS_CFG
+        {
+            public uint dwSize;
+            public byte byManageDscp;   // �������ݵ�DSCPֵ [0-63]
+            public byte byAlarmDscp;    // �������ݵ�DSCPֵ [0-63]
+            public byte byVideoDscp;    // ��Ƶ���ݵ�DSCPֵ [0-63]��byFlagΪ0ʱ����ʾ����Ƶ
+            public byte byAudioDscp;    // ��Ƶ���ݵ�DSCPֵ [0-63]��byFlagΪ1ʱ��Ч
+            public byte byFlag;			// 0������Ƶ��һ��1������Ƶ�ֿ�
+            public byte byEnable;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 126, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_HTTPS_CFG
+        {
+            public uint dwSize;
+            public ushort wHttpsPort;		// HTTPS�˿�
+            public byte byEnable;		// ʹ�� 0���ر� 1������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 125, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //֤�����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CERT_NAME
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_COUNTRY_NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byCountry;  			//���Ҵ��� CN��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DOMAIN_NAME, ArraySubType = UnmanagedType.I1)]
+            public byte[] byState;				//�޻�ʡ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DOMAIN_NAME, ArraySubType = UnmanagedType.I1)]
+            public byte[] byLocality;			//����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DOMAIN_NAME, ArraySubType = UnmanagedType.I1)]
+            public byte[] byOrganization;		//��֯
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DOMAIN_NAME, ArraySubType = UnmanagedType.I1)]
+            public byte[] byUnit;				//��λ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DOMAIN_NAME, ArraySubType = UnmanagedType.I1)]
+            public byte[] byCommonName;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DOMAIN_NAME, ArraySubType = UnmanagedType.I1)]
+            public byte[] byEmail;  
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CERT_PARAM
+        {
+            public uint dwSize;
+            public ushort wCertFunc; //֤�����࣬0-802.1x,1-HTTPS
+            public ushort wCertType; //֤�����ͣ�0-CA��1-Certificate,2-˽Կ�ļ�
+            public byte byFileType; //֤���ļ����ͣ�0-PEM,1-PFX
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 35, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; 
+        }
+
+        public const int UPLOAD_CERTIFICATE = 1; //�ϴ�֤��
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CERT_INFO
+        {
+            public uint dwSize;
+            public NET_DVR_CERT_PARAM struCertParam;	//֤�����
+            public uint dwValidDays;   //��Ч����������Ϊ��ǩ��ʱ��Ч
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byPasswd;   //˽Կ����
+            public NET_DVR_CERT_NAME struCertName;    // ֤������
+            public NET_DVR_CERT_NAME struIssuerName;    // ֤�鷢�������ƣ���ǩ��֤����Ϣ��ȡʱ��Ч��
+            public NET_DVR_TIME_EX struBeginTime;   //֤�鴴��ʱ�䣨��ǩ��֤����Ϣ��ȡʱ��Ч��
+            public NET_DVR_TIME_EX struEndTime;   //֤���ֹʱ�䣨��ǩ��֤����Ϣ��ȡʱ��Ч��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] serialNumber;   //֤���ʶ�루��ǩ��֤����Ϣ��ȡʱ��Ч��
+            public byte byVersion; 
+            public byte byKeyAlgorithm;			//�������� 0-RSA  1-DSA
+            public byte byKeyLen;				//���ܳ��� 0-512  1-1024�� 2-2048
+            public byte bySignatureAlgorithm; //ǩ���㷨���ͣ���ǩ��֤����Ϣ��ȡʱ��Ч��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //channel record status
+        //***ͨ��¼��״̬*****//
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CHANS_RECORD_STATUS
+        {
+            public byte byValid;       //�Ƿ���Ч
+            public byte byRecord;      /*(ֻ��)¼������, ��λ��ʾ:0: ����¼��1����¼�� 2-���� 
+						3-������ 4-��������Ƶ 5-δ���� 6-�浵��
+							7-�ش��� 8-�û���������� 9-δ��֤
+							10-�浵�к�¼���� 11-¼��ش��к�¼����*/
+            public ushort wChannelNO;   //ͨ����
+            public uint dwRelatedHD;  //��������
+            public byte byOffLineRecord;  //����¼���� 0-�ر� 1-����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 7, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;      //�����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IP_ALARM_GROUP_NUM
+        {
+            public uint dwSize; 
+            public uint dwIPAlarmInGroup;      //IPͨ��������������
+            public uint dwIPAlarmInNum;       //IPͨ�������������
+            public uint dwIPAlarmOutGroup;     //IPͨ�������������
+            public uint dwIPAlarmOutNum;      //IPͨ�������������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;  
+        }
+        
+        //****NVR end***//
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CHAN_GROUP_RECORD_STATUS
+        {
+            public uint dwSize; //�ṹ���С
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_CHANS_RECORD_STATUS[] struChanStatus; //һ��64��
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_RECTCFG
+        {
+            public ushort wXCoordinate; /*�������Ͻ���ʼ��X����*/
+            public ushort wYCoordinate; /*�������Ͻ�Y����*/
+            public ushort wWidth;       /*�����*/
+            public ushort wHeight;      /*���θ߶�*/
+        }
+
+        /*������Ϣ*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_WINCFG
+        {
+            public uint dwSize;
+            public byte byVaild;
+            public byte byInputIdx;          /*����Դ����*/
+            public byte byLayerIdx;          /*ͼ�㣬0Ϊ��ײ�*/
+            public byte byTransparency; //͸���ȣ�0��100 
+            public NET_DVR_RECTCFG  struWin;//Ŀ�Ĵ���(�����ʾǽ)
+            public ushort wScreenHeight;//������
+            public ushort wScreenWidth;//������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ALLWINCFG
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_LAYERNUMS, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_WINCFG[] struWinCfg;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 24, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SCREENZOOM
+        {
+            public uint dwSize;
+            public uint dwScreenNum;//������
+            public NET_DVR_POINT_FRAME struPointFrame;
+            public byte byLayer;//ͼ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 11, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //2011-04-18
+        /*�������Ϣ,���9999������1��ʼ */
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_MATRIX_CAMERAINFO
+        {  
+            public uint dwGlobalCamId;      /* cam��ȫ�ֱ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sCamName; /*cam������*/
+            public uint dwMatrixId;          /*cam��Ӧ����ı��*/
+            public uint dwLocCamId;         /*cam��Ӧ������ڲ����*/ 
+            public byte byValid;    /*�Ƿ���Ч��0-��1-��*/
+            public byte byPtzCtrl; /* �Ƿ�ɿأ�0-��1-��*/
+            public byte byUseType; //*ʹ�����ͣ�0-����Ϊ����ʹ�ã�1-BNC��2-SP3,3-V6���ˣ�4-��������*/ 
+            public byte byUsedByTrunk;//��ǰʹ��״̬��0-û�б�ʹ�ã�1-������ʹ�� 
+            public byte byTrunkReq; /*������ֱ���,��D1Ϊ��λ��1 - 1��D1��2- 2��D1����Ϊ����ʹ��ʱ��ָ���Ǹ��ߵĴ���*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_DVR_TIME struInstallTime;//��װʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPurpose;/*��;����*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;  
+        }
+
+        /*��ʾ����Ϣ�����2048��*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_MATRIX_MONITORINFO 
+        {
+            public uint dwGloalMonId; /*mon ��ͳһ���*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sMonName;
+            public uint dwMatrixId;  /*mon���ھ���ı��*/
+            public uint dwLocalMonId; /*mon���ڲ����*/
+            public byte byValid;    /*�Ƿ���Ч��0-��1-��*/
+            public byte byTrunkType; /*ʹ�����ͣ�0-����Ϊ����ʹ�ã�1-BNC��2-SP3,3-V6���ˣ�4-��������*/ 
+            public byte byUsedByTrunk;//��ǰʹ��״̬��0-û�б�ʹ�ã�1-������ʹ�� 
+            public byte byTrunkReq; /*�ֱ���, ��D1Ϊ��λ��1- 1��D1��2- 2��D1����Ϊ����ʹ��ʱ��ָ���Ǹ��ߵĴ���*/
+            public NET_DVR_TIME struInstallTime;//��װʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPurpose;/*��;����*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;  
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_MATRIX_DIGITALMATRIX
+        {
+            public NET_DVR_IPADDR struAddress; /*�豸Ϊ�����豸ʱ��IP��Ϣ*/
+            public ushort wPort;
+            public byte byNicNum; /*0 - eth0, 1 - eth1, ����˫�������ͨ�ż���󶨵�����*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 69, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;   
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_MATRIX_ANALOGMATRIX
+        {
+            public byte bySerPortNum;   /*���ӵĴ��ں�*/
+            public byte byMatrixSerPortType;/* ����������صĴ�����ģ�����ļ��̿�(����Э��)���ӻ��������ͨ�ſڣ�����Э�飩���� ��0 --- ����Э��ͨѶ�� 1 --- ����ͨѶ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_DVR_SINGLE_RS232 struRS232;	//232���ڲ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 200, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;      
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MATRIXLIST
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 12, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public uint dwMatrixNum;//�豸���صľ�������
+            public IntPtr pBuffer;//������Ϣ������
+            public uint dwBufLen;//������ָ�볤�ȣ��������
+        }
+
+ 
+        /*����������Ϣ*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_MATRIX_UARTPARAM
+        {	
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byPortName;
+            public ushort wUserId; /*�û���ţ��������豸Ϊ����ʱ����һ���û�������Ȩ�޹���*/
+            public byte byPortType;    /*�������ͣ�����0-RS232/1-RS485/2-RS422*/
+            public byte byFuncType; /*�������ӵ��豸������0-���У�1-���̣�2-����͸��ͨ��(485���ڲ������ó�͸��ͨ��),3-ģ�����*/     
+            public byte byProtocolType;  /*����֧�ֵ�Э������, �����Ӽ����豸ʱ��Ҫ����Ϣ,��ȡ����֧��Э��ı�ż�������*/
+            public byte byBaudRate;
+            public byte byDataBits;
+            public byte byStopBits;   /*ֹͣλ*/
+            public byte byParity;      /*��*/
+            public byte byFlowCtrl;   /*���أ��������أ�������*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 22, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;     /*Ԥ��*/
+        }
+
+        //���256���û���1��256
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_MATRIX_USERPARAM 
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUserName;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassword;
+            public byte byRole;/*�û���ɫ:0-����Ա,1-����Ա��ֻ��һ��ϵͳ����Ա��255������Ա*/
+            public byte byLevel;  /*ͳһ�������ڲ����������,1- 255*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 18, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //���255����Դ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_MATRIX_RESOURSEGROUPPARAM
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byGroupName;
+            public byte byGroupType;/*0-�����CAM�飬1-��ʾ��MON��*/
+            public byte byRes1;
+            public ushort wMemNum;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 512, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwGlobalId; 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        //���255���û���
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_MATRIX_USERGROUPPARAM
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sGroupName;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 255, ArraySubType = UnmanagedType.U2)]
+            public ushort[] wUserMember;  /*�������û���Ա*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 255, ArraySubType = UnmanagedType.U2)]
+            public ushort[] wResorceGroupMember; /*��������Դ���Ա*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byPermission;//Ȩ�ޣ�����0-ptzȨ�ޡ��л�Ȩ�ޡ���ѯȨ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_MATRIX_TRUNKPARAM
+        {
+            public uint dwSize;
+            public uint dwTrunkId;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sTrunkName;
+            public uint dwSrcMonId;
+            public uint dwDstCamId;
+            public byte byTrunkType;  /*ʹ������  1-BNC��2-SP3���˸��壬3-SP3����D1�� 4-V6���ˣ�5-��������*/
+            public byte byAbility;     /*��ʾ���˵Ĵ��������Դ��伸·*/
+            public byte bySubChan;   /*��Թ��˸��߶��ԣ���ʾ��ͨ����*/
+            public byte byLevel;		/* ���߼��� 1-255*/
+            public ushort wReserveUserID;	//Ԥ�����û�ID�� 1~256 ��0��ʾ�ͷ�Ԥ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 18, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; 
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MATRIX_TRUNKLIST
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 12, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public uint dwTrunkNum;//�豸���صĸ�������
+            public IntPtr pBuffer;//������Ϣ������
+            public uint dwBufLen;//������ָ�볤�ȣ��������
+        }
+
+        public const int MATRIX_PROTOCOL_NUM   = 20;    //֧�ֵ�������Э����
+        public const int KEYBOARD_PROTOCOL_NUM = 20;    //֧�ֵ�������Э����
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PROTO_TYPE_EX
+        { 
+            public ushort wType;               /*ipcЭ��ֵ*/  
+            public ushort wCommunitionType;		/*0��ģ�� 1������ 2������ģ�⡢����*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = DESC_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDescribe; /*Э�������ֶ�*/    
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MATRIXMANAGE_ABIILITY
+        {
+            public uint dwSize;
+            public uint dwMaxCameraNum;//���Camera����
+            public uint dwMaxMonitorNum;//�����ʾ������
+            public ushort wMaxMatrixNum;//����������
+            public ushort wMaxSerialNum;//��������
+            public ushort wMaxUser;//����û���
+            public ushort wMaxResourceArrayNum;//�����Դ����
+            public ushort wMaxUserArrayNum;//����û�����
+            public ushort wMaxTrunkNum;//��������
+            public byte nStartUserNum;//��ʼ�û���
+            public byte nStartUserGroupNum;//��ʼ�û����
+            public byte nStartResourceGroupNum;//��ʼ��Դ���
+            public byte nStartSerialNum;//��ʼ���ں�
+            public uint  dwMatrixProtoNum;     /*��Ч�ľ���Э����Ŀ����0��ʼ*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MATRIX_PROTOCOL_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_PROTO_TYPE_EX[] struMatrixProto;/*����������*/ 
+            public uint dwKeyBoardProtoNum;     /*��Ч�ļ���Э����Ŀ����0��ʼ*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MATRIX_PROTOCOL_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_PROTO_TYPE_EX[] struKeyBoardProto;/*����������*/   
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SINGLEWALLPARAM
+        {
+            public uint dwSize;
+            public byte byEnable;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public uint dwWallNum;//����ǽ�����
+            //������Ϊ��׼�������������128��128�������Ⱥ͸߶�ֵ�������ã���Ϊ��׼ֵ
+            public NET_DVR_RECTCFG struRectCfg;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 36, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        /*������Ϣ*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_WALLWINCFG
+        {
+            public uint dwSize;
+            public byte byEnable;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 7, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public uint dwWinNum;//���ں�
+            public uint dwLayerIndex;//�������Ӧ��ͼ���
+            public NET_DVR_RECTCFG struWinPosition;//Ŀ�Ĵ���(�����ʾǽ)
+            public uint dwDeviceIndex;//�ֲ�ʽ�����������豸���
+            public ushort wInputIndex;//�����ź�Դ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 14, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        //������ز���
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_WALLWINPARAM
+        {
+            public uint dwSize;
+            public byte byTransparency; //ʹ��͸���ȣ�0-�أ���0-��	
+            public byte byWinMode;//���ڷ���ģʽ����������ȡ
+            public byte byEnableSpartan;//����ʹ�ܣ�0-�أ�1-��
+            public byte byDecResource;  //Ϊ���ڷ���Ľ�����Դ��1-D1,2-720P,3-1080P
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_RECTCFG_EX
+        {
+            public uint dwXCoordinate;
+            public uint dwYCoordinate;
+            public uint dwWidth;
+            public uint dwHeight;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //����ǽ���λ������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VIDEOWALLDISPLAYPOSITION
+        {
+            public uint dwSize;
+            public byte byEnable; //ʹ�ܣ�0- ���ã�1- ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public uint dwVideoWallNo;//����ǽ��(���)
+            public uint dwDisplayNo;  //��ʾ�����(���)��������ȡȫ��ʱ��Ч
+            public NET_DVR_RECTCFG_EX struRectCfg;//λ�����꣬��Ϊ��׼���꣨ͨ����������ȡ���������������Ⱥ͸߶�ֵ�������ã���Ϊ��׼ֵ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        //��ʾ�������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DISPLAYPARAM
+        {
+            public uint dwDisplayNo;//��ʾ�����
+            public byte byDispChanType;/*�������ģʽ,1-BNC��2-VGA��3-HDMI��4-DVI��5-SDI, 6-FIBER, \
+                                    7-RGB, 8-YPrPb, 9-VGA/HDMI/DVI����Ӧ��10-3GSDI,11-VGA/DVI����Ӧ��12-HDBaseT, 0xff-��Ч*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 11, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //��ʾ�����������
+        public const int MAX_DISPLAY_NUM = 512; //�����ʾ�������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DISPLAYCFG
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DISPLAY_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_DISPLAYPARAM[] struDisplayParam;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //������Ϣ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VIDEOWALLWINDOWPOSITION
+        {
+            public uint dwSize;
+            public byte byEnable;  //����ʹ��,0-��ʹ�ܣ�1-ʹ�� 
+            public byte byWndOperateMode;  //���ڲ���ģʽ��0-ͳһ���꣬1-�ֱ�������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 6, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public uint dwWindowNo;//���ں�
+            public uint dwLayerIndex;//�������Ӧ��ͼ��ţ�ͼ��ŵ�����ö����ö�����
+            public NET_DVR_RECTCFG_EX struRect; //Ŀ�Ĵ���ͳһ����(�����ʾǽ)����ȡ��ͳһ��������ʱ��Ч
+            public NET_DVR_RECTCFG_EX struResolution; //Ŀ�Ĵ��ڷֱ������꣬��ȡ�򰴷ֱ�������������Ч
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 44, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CHAN_RELATION_RESOURCE
+        {
+            public uint dwSize;
+            public uint dwDisplayChan; //��ʾͨ���ţ�1�ֽ��豸��+1�ֽڱ���+2�ֽ���ʾͨ���ţ�
+            public byte byRelateAudio; //�Ƿ�����Ӵ�����Ƶ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public uint dwSubWinNo; //������Ƶ���Ӵ��ںţ�1�ֽڵ���ǽ��+1�ֽ��Ӵ��ں�+2�ֽڴ��ںţ�
+            public uint dwChannel; //����ͨ���ţ���ȡȫ��ʱ��Ч
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PU_STREAM_CFG_V41
+        {
+            public uint dwSize;
+            public byte byStreamMode;//ȡ��ģʽ��0- ��Ч��1- ͨ��IP������ȡ����2- ͨ��URLȡ����3- ͨ����̬�����������豸ȡ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_DVR_DEC_STREAM_MODE uDecStreamMode;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_VIDEO_WALL_INFO
+        {
+            public uint dwSize;
+            public uint dwWindowNo;
+            public uint dwSceneNo;
+            public uint dwDestWallNo; //Ŀ��ǽ��
+            public uint dwDestSceneNo;//Ŀ�ij�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 12, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_SCENE_CONTROL_INFO
+        {
+            public uint dwSize;
+            public NET_DVR_VIDEO_WALL_INFO struVideoWallInfo;
+            public uint dwCmd;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_WALLSCENECFG
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sSceneName;    //��������
+            public byte byEnable;                //�����Ƿ���Ч��0-��Ч��1-��Ч
+            public byte bySceneIndex;            //�����ţ�ֻ�ܻ�ȡ����ȡ���г���ʱʹ�øò���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 78, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_BUF_INFO
+        {
+            public IntPtr pBuf;
+            public uint nLen;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_IN_PARAM
+        {
+            public NET_DVR_BUF_INFO struCondBuf;
+            public NET_DVR_BUF_INFO struInParamBuf;
+            public uint dwRecvTimeOut;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_OUT_PARAM
+        {
+            public NET_DVR_BUF_INFO struOutBuf;
+            public IntPtr lpStatusList;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_INPUTSTREAMCFG_V40
+        {
+            public uint dwSize;
+            public byte byValid;     //
+            public byte byCamMode;//��NET_DVR_CAM_MODE
+            public ushort wInputNo; //�ź�Դ���
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = NAME_LEN)]
+            public string sCamName;
+            public NET_DVR_VIDEOEFFECT struVideoEffect;//��Ƶ����
+            public NET_DVR_PU_STREAM_CFG struPuStream;    //ip����ʱʹ��
+            public ushort wBoardNum;      //�ź�Դ���ڵİ忨�ţ�ֻ�ܻ�ȡ
+            public ushort wInputIdxOnBoard; //�ź�Դ�ڰ忨�ϵ�λ�ã�ֻ�ܻ�ȡ
+            public uint dwResolution;//�ֱ���
+            public byte byVideoFormat;//��Ƶ��ʽ����VIDEO_STANDARD
+            public byte byStatus;    //�ź�Դ״̬��0-�ֶ���Ч 1-���ź� 2-���ź� 3-�쳣 
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = NAME_LEN)]
+            public string sGroupName;    //�����ź�Դ���� ����
+            public byte byJointMatrix;            //��������0-������  1-�������������ź�ԴΪNET_DVR_CAM_BNC��NET_DVR_CAM_VGA��NET_DVR_CAM_DVI��NET_DVR_CAM_HDMI,�е�һ��ʱ���ò�����Ч��
+            public byte byJointNo;         //ƴ���ź�Դ��ƴ�ӱ��(ֻ�ܻ�ȡ)
+            public byte byColorMode;      //ɫ��ģʽ�� 0-�Զ��� 1-���� 2-��ͨ 3-��ͣ���Ϊ�Զ���ʱ��ʹ��struVideoEffect����
+            public byte byScreenServer; //������Ļ��������0-������1-����
+            public byte byDevNo; //�豸��
+            public byte byRes1;
+            public uint dwInputSignalNo; //�����ź�Դ��ţ��£�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 120, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //����ץ�Ĺ���(����)
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_SINGLE_FACESNAPCFG
+        {
+            public byte byActive;				//�Ƿ񼤻����0-��1-��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;     //����
+            public NET_VCA_SIZE_FILTER struSizeFilter;   //�ߴ������
+            public NET_VCA_POLYGON struVcaPolygon;		//����ʶ������
+        }
+
+        //����ץ�Ĺ������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_FACESNAPCFG
+        {
+            public uint dwSize;
+            public byte bySnapTime;					//����Ŀ��������ץ�Ĵ���0-10
+            public byte bySnapInterval;                 //ץ�ļ������λ��֡
+            public byte bySnapThreshold;               //ץ����ֵ��0-100
+            public byte byGenerateRate; 		//Ŀ�������ٶ�,��Χ[1, 5]	
+            public byte bySensitive;			//Ŀ���������ȣ���Χ[1, 5]
+            public byte byReferenceBright; //2012-3-27�����[0,100]
+            public byte byMatchType;         //2012-5-3�ȶԱ���ģʽ��0-Ŀ����ʧ�󱨾���1-ʵʱ����
+            public byte byMatchThreshold;  //2012-5-3ʵʱ�ȶ���ֵ��0~100
+            public NET_DVR_JPEGPARA struPictureParam; //ͼƬ���ṹ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_RULE_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_VCA_SINGLE_FACESNAPCFG[] struRule; //����ץ�Ĺ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 100, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        //��������ʶ�����ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_HUMAN_FEATURE
+        {
+            public byte byRes3;    
+            public byte bySex;         //�Ա�, 0-��ʾ��δ֪�����㷨��֧�֣�,1 �C �� , 2 �C Ů, 0xff-�㷨֧�֣�����û��ʶ�����
+            public byte byEyeGlass;    //�Ƿ���۾� 0-��ʾ��δ֪�����㷨��֧�֣�,1 �C ����, 2 �C ��,0xff-�㷨֧�֣�public byte byRes4;
+            public byte byDeviation;//���ֵ
+            public byte byEthnic;   //�ֶ�Ԥ��,�ݲ�����
+            public byte byMask;       //�Ƿ������ 0-��ʾ��δ֪�����㷨��֧�֣�,1 �C ����, 2 �C����ͨ�۾�, 3 �C��ī��,0xff-�㷨֧�֣�����û��ʶ�����
+            public byte bySmile;      //�Ƿ�΢Ц 0-��ʾ��δ֪�����㷨��֧�֣�,1 �C ��΢Ц, 2 �C ΢Ц, 0xff-�㷨֧�֣�����û��ʶ�����
+            public byte byFaceExpression;    
+            public byte byBeard;  
+            public byte byRes2;  
+            public byte byHat;   //ñ��, 0-��֧��,1-����ñ��,2-��ñ��,0xff-unknow��ʾδ֪,�㷨֧��δ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; //����
+        }
+
+        //����ץ�ĸ�����Ϣ�ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_FACESNAP_ADDINFO
+        {
+            //�������ο�,������Ϊ����Сͼ(ͷ����)������������
+            public NET_VCA_RECT struFacePicRect;
+            public int iSwingAngle;//��ת��, -90~90��
+            public int iTiltAngle;//������, -90~90��
+            public uint dwPupilDistance;//ͫ��,��ΧΪ����СֵΪ10����,���ֵΪ��ǰ�ֱ��ʿ���/1.6
+            public byte byBlockingState;//Ŀ���ڵ�״̬�� 0-��ʾ��δ֪�����㷨��֧�֣�,1~���ڵ�,2~˲ʱ����ڵ���3~��������ڵ���4~�����ڵ�
+            public byte byFaceSnapThermometryEnabled;//����ץ�IJ���ʹ�� 1-���� 0-�ر�
+            public byte byIsAbnomalTemperature;//����ץ�IJ����Ƿ��¶��쳣 1-�� 0-��
+            public byte byThermometryUnit;//���µ�λ: 0-���϶ȣ��棩��1-���϶ȣ��H����2-������(K)
+            public NET_DVR_TIME_EX struEnterTime;   // ���ץ���½���ʱ��
+            public NET_DVR_TIME_EX struExitTime;    // ���ץ�����뿪ʱ��
+            public float fFaceTemperature; // �����¶ȣ� - 20.0��~150.0�棬��ȷ��С�����1λ��
+            public float fAlarmTemperature;// ���±�������ֵ����ȷ��С�����1λ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 472, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;// �����ֽ�
+        }
+
+        //����ץ�Ľ�������ϴ�
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_FACESNAP_RESULT
+        {
+            public uint dwSize;
+            public uint dwRelativeTime;
+            public uint dwAbsTime;
+            public uint dwFacePicID;
+            public uint dwFaceScore;
+            public NET_VCA_TARGET_INFO struTargetInfo;
+            public NET_VCA_RECT struRect;
+            public NET_VCA_DEV_INFO struDevInfo;
+            public uint dwFacePicLen;
+            public uint dwBackgroundPicLen;
+            public byte bySmart;            //IDS�豸����0(Ĭ��ֵ)��Smart Functiom Return 1
+            public byte byAlarmEndMark;//�����������0-������1-������ǣ����ֶν������ID�ֶ�ʹ�ã���ʾ��ID��Ӧ���±�����������Ҫ�ṩ��NVRʹ�ã������жϱ�����������ȡʶ��ͼƬ�����У���������ߵ�ͼƬ��
+            public byte byRepeatTimes;   //�ظ�����������0-������
+            public byte byUploadEventDataType;//����ͼƬ���ݳ�����ʽ��0-���������ݣ�1-URL
+            public NET_VCA_HUMAN_FEATURE struFeature;  //��������
+            public float fStayDuration;  //ͣ��������ʱ��(��λ: ��)
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] sStorageIP;        //�洢����IP��ַ
+            public ushort wStoragePort;            //�洢����˿ں�
+            public ushort wDevInfoIvmsChannelEx;     //��NET_VCA_DEV_INFO���byIvmsChannel������ͬ���ܱ�ʾ�����ֵ���Ͽͻ�����byIvmsChannel�ܼ������ݣ��������255���¿ͻ��˰汾��ʹ��wDevInfoIvmsChannelEx��
+            public byte byFacePicQuality;
+            public byte byUIDLen;     // �ϴ������ı�ʶ����
+            public byte byLivenessDetectionStatus;// ������״̬��0-������1-δ֪(���ʧ��)��2-������������3-����������4-δ����������
+            /*������Ϣ��ʶλ�����Ƿ���NET_VCA_FACESNAP_ADDINFO�ṹ�壩,0-�޸�����Ϣ, 1-�и�����Ϣ��*/
+            public byte byAddInfo;
+            public IntPtr pUIDBuffer;  //��ʶָ��
+            public IntPtr pAddInfoBuffer;
+            public byte byTimeDiffFlag;      /*ʱ���ֶ��Ƿ���Ч  0-ʱ����Ч�� 1-ʱ����Ч */
+            public byte cTimeDifferenceH;         /*��UTC��ʱ�Сʱ����-12 ... +14�� +��ʾ����,��byTimeDiffFlagΪ1ʱ��Ч*/
+            public byte cTimeDifferenceM;      	/*��UTC��ʱ����ӣ���-30, 30, 45�� +��ʾ������byTimeDiffFlagΪ1ʱ��Ч*/
+            public byte byBrokenNetHttp;     //����������־λ��0-�����ش����ݣ�1-�ش�����
+            public IntPtr pBuffer1;//ָ��������ͼ��ͼƬ����
+            public IntPtr pBuffer2;//����ͼ��ͼƬ���ݣ�������ͨ�����ұ���ͼ�ӿڿ��Ի�ȡ����ͼ��
+        }
+
+        //������ⱨ����Ϣ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FACE_DETECTION
+        {
+            public uint dwSize;
+            public uint dwRelativeTime;
+            public uint dwAbsTime;
+            public uint dwBackgroundPicLen;
+            public NET_VCA_DEV_INFO struDevInfo;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 30, ArraySubType = UnmanagedType.Struct)]
+            public NET_VCA_RECT[] struFacePic; //������ͼ���򣬹�һ��ֵ������ڴ�ͼ������ͼ)�ķֱ���
+            public byte byFacePicNum;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 255, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;//����
+            public IntPtr pBackgroundPicpBuffer;//����ͼ��ͼƬ����
+        }
+
+        //�齹�����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DEFOCUS_ALARM
+        {
+            public uint dwSize;     /*�ṹ����*/
+            public NET_VCA_DEV_INFO struDevInfo;/*�豸��Ϣ*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;		// �����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_AUDIOEXCEPTION_ALARM
+        {
+            public uint    dwSize;     /*�ṹ����*/
+            public byte byAlarmType;//�������ͣ�1-��Ƶ�����쳣��2-��Ƶ����ͻ��
+            public byte byRes1;
+            public ushort wAudioDecibel;//����ǿ�ȣ���Ƶ����ͻ��ʱ�õ���
+            public NET_VCA_DEV_INFO struDevInfo;/*�豸��Ϣ*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;		// �����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_BUTTON_DOWN_EXCEPTION_ALARM
+        {
+            public uint dwSize;     /*�ṹ����*/
+            public NET_VCA_DEV_INFO struDevInfo;/*�豸��Ϣ*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;		// �����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_FD_IMAGE_CFG
+        {
+            public uint dwWidth;                  //�Ҷ�ͼ�����ݿ���
+            public uint dwHeight;                 //�Ҷ�ͼ��߶�
+            public uint dwImageLen;  //�Ҷ�ͼ�����ݳ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;  //����
+            public IntPtr pImage;    //�Ҷ�ͼ������
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_FD_PROCIMG_CFG
+        {
+            public uint  dwSize;           //�ṹ��С
+            public byte byEnable;         //�Ƿ񼤻����;
+            public byte bySensitivity;      //��������ȣ�[0,5]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 22, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;       //�����ֽ� 
+            public NET_VCA_SIZE_FILTER struSizeFilter;  //�ߴ������
+            public NET_VCA_POLYGON  struPolygon;    //�����
+            public NET_VCA_FD_IMAGE_CFG struFDImage;  //ͼƬ��Ϣ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;    //����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_SUB_PROCIMG
+        {
+            public uint dwImageLen;  //ͼƬ���ݳ���
+            public uint dwFaceScore;		//��������,0-100
+            public NET_VCA_RECT struVcaRect; //������ͼ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;  //����
+            public IntPtr pImage;  //ͼƬ����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_FD_PROCIMG_RESULT
+        {
+            public uint dwSize;   //�ṹ��С
+            public uint dwImageId; //��ͼID
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; //����
+            public uint dwSubImageNum;  //������ͼ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_TARGET_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_VCA_SUB_PROCIMG[] struProcImg;  //������ͼ��Ϣ
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_PICMODEL_RESULT
+        {
+            public uint dwImageLen;  //ͼƬ���ݳ���
+            public uint dwModelLen;  //ģ�����ݳ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; //����
+            public IntPtr pImage;  //����ͼƬ����ָ��
+            public IntPtr pModel;  //ģ������ָ��
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_REGISTER_PIC
+        {
+            public uint dwImageID; //��ͼID
+            public uint dwFaceScore;		//��������,0-100
+            public NET_VCA_RECT struVcaRect;  //������ͼ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;  //����
+        }
+
+        //��������ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_AREAINFOCFG
+        {
+            public ushort wNationalityID;//����
+            public ushort wProvinceID;//ʡ
+            public ushort wCityID;//��
+            public ushort wCountyID;//��
+            public uint dwCode;//����
+        }
+
+        //��Ա��Ϣ�ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_HUMAN_ATTRIBUTE
+        {
+            public byte bySex;//�Ա�0-�У�1-Ů
+            public byte byCertificateType;//֤�����ͣ�0-����֤��1-����֤
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_HUMAN_BIRTHDATE_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byBirthDate;//�������£��磺201106
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byName; //����
+            public NET_DVR_AREAINFOCFG struNativePlace;//�������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byCertificateNumber; //֤����
+            public uint dwPersonInfoExtendLen;// ��Ա��ǩ��Ϣ��չ����
+            public IntPtr pPersonInfoExtend;  //��Ա��ǩ��Ϣ��չ��Ϣ
+            public byte byGroup;//
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 11, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;//����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_HUMANATTRIBUTE_COND
+        {
+            public byte bySex; //�Ա�0-�����ã�1-�У�2-Ů
+            public byte byCertificateType; //֤�����ͣ�0-�����ã�1-����֤��2-����֤
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_HUMAN_BIRTHDATE_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byStartBirthDate; //��ʼ�������£��磺201106
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_HUMAN_BIRTHDATE_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byEndBirthDate; //��ֹ�������£���201106
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byName; //����
+            public NET_DVR_AREAINFOCFG struNativePlace; //�������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byCertificateNumber;  //֤����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //��ֹ������Ϣ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_BLOCKLIST_INFO
+        {
+            public uint dwSize;//�ṹ��С
+            public uint dwRegisterID;//����ע��ID�ţ�ֻ����
+            public uint dwGroupNo;//�����
+            public byte byType;//������־��0-ȫ����1-����������2-��ֹ����
+            public byte byLevel;//��ֹ�����ȼ���0-ȫ����1-�ͣ�2-�У�3-��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;//����
+            public NET_VCA_HUMAN_ATTRIBUTE struAttribute;//��Ա��Ϣ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRemark;//��ע��Ϣ
+            public uint dwFDDescriptionLen;//�������������ݳ���
+            public IntPtr pFDDescriptionBuffer;//��������������ָ��
+            public uint dwFCAdditionInfoLen;//ץ�Ŀ⸽����Ϣ����
+            public IntPtr pFCAdditionInfoBuffer;//ץ�Ŀ⸽����Ϣ����ָ�루FCAdditionInfo�а������PTZ���꣩
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;//����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_BLOCKLIST_PARA
+        {
+            public uint dwSize;   //�ṹ��С
+            public NET_VCA_BLOCKLIST_INFO struBlockListInfo;  //��ֹ������������
+            public uint dwRegisterPicNum;  //��ֹ����ͼ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_HUMAN_PICTURE_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_VCA_PICMODEL_RESULT[] struRegisterPic;  //��ֹ����ͼƬ��Ϣ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 40, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; //����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_BLOCKLIST_COND
+        {
+            public Int32 lChannel; //ͨ����
+            public uint dwGroupNo; //�����
+            public byte byType; //������־��0-ȫ����1-����������2-��ֹ����
+            public byte byLevel; //��ֹ�����ȼ���0-ȫ����1-�ͣ�2-�У�3-��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;  //����
+            public NET_VCA_HUMAN_ATTRIBUTE struAttribute; //��Ա��Ϣ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_BLOCKLIST_PIC
+        {
+            public uint dwSize;   //�ṹ��С
+            public uint dwFacePicNum;  //����ͼ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; //����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_HUMAN_PICTURE_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_VCA_PICMODEL_RESULT[] struBlockListPic;  //������Ƭ��Ϣ
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_FIND_PICTURECOND
+        {
+            public Int32 lChannel;//ͨ����
+            public NET_DVR_TIME struStartTime;//��ʼʱ��
+            public NET_DVR_TIME struStopTime;//����ʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 12, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; //����
+        }
+
+        public const int MAX_FACE_PIC_LEN = 6144;   //�������ͼƬ���ݳ���
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_SUB_SNAPPIC_DATA
+        {
+            public uint dwFacePicID; //����ͼID
+            public uint dwFacePicLen;  //����ͼ���ݳ���
+            public NET_DVR_TIME struSnapTime;  //ץ��ʱ��
+            public uint dwSimilarity; //���ƶ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;  //����
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = MAX_FACE_PIC_LEN)]
+            public string sPicBuf;  //ͼƬ����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_ADVANCE_FIND
+        {
+            public uint dwFacePicID; //����ͼƬID
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 36, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_NORMAL_FIND
+        {
+            public uint dwImageID; //��ͼID
+            public uint dwFaceScore;  //��������
+            public NET_VCA_RECT struVcaRect; //������ͼ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Explicit)]
+        public struct NET_VCA_FIND_SNAPPIC_UNION
+        {
+            //�������СΪ44�ֽ�
+            [FieldOffsetAttribute(0)]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 44, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+
+            /*[FieldOffsetAttribute(0)]
+            public NET_VCA_NORMAL_FIND  struNormalFind; //��ͨ����
+            [FieldOffsetAttribute(0)]
+            public NET_VCA_ADVANCE_FIND struAdvanceFind; //�߼�����
+             * */
+        }
+
+        public enum VCA_FIND_SNAPPIC_TYPE
+        {
+            VCA_NORMAL_FIND  = 0x00000000,   //��ͨ����
+	        VCA_ADVANCE_FIND  = 0x00000001  //�߼�����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_FIND_PICTURECOND_ADVANCE
+        {
+            public Int32 lChannel;//ͨ����
+            public NET_DVR_TIME struStartTime;//��ʼʱ��
+            public NET_DVR_TIME struStopTime;//����ʱ��
+            public byte byThreshold;  //��ֵ��0-100
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 23, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; //����
+            public VCA_FIND_SNAPPIC_TYPE dwFindType;//�������ͣ����VCA_FIND_SNAPPIC_TYPE
+            public NET_VCA_FIND_SNAPPIC_UNION uFindParam; //��������
+        }
+
+        //����ץ����Ϣ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_FACESNAP_INFO_ALARM
+        {
+            public uint dwRelativeTime;     // ���ʱ��
+            public uint dwAbsTime;            // ����ʱ��
+            public uint dwSnapFacePicID;       //ץ������ͼID
+            public uint dwSnapFacePicLen;        //ץ��������ͼ�ij��ȣ�Ϊ0��ʾû��ͼƬ������0��ʾ��ͼƬ
+            public NET_VCA_DEV_INFO struDevInfo;   //ǰ���豸��Ϣ
+            public byte byFaceScore;        //�������֣�ָ������ͼ������������,0-100
+            public byte bySex;//�Ա�0-δ֪��1-�У�2-Ů
+            public byte byGlasses;//�Ƿ���۾���0-δ֪��1-�ǣ�2-��
+            
+            public byte byRes1;
+            public byte byDeviation;//���ֵ
+            public byte byGroup;
+            /*������ͼͼƬ���������ȼ���0-�͵�����,1-�е�����,2-�ߵ�����,
+            �����������㷨�����������ͼ����ͼƬ,������ͨ����̬�������ȡ��ڵ��������������ȿ�Ӱ������ʶ�����ܵ������ۺ������Ľ��*/
+            public byte byFacePicQuality;
+            public byte byEthnic; //�ֶ�Ԥ��,�ݲ�����
+            public uint dwUIDLen; // �ϴ������ı�ʶ����
+            public IntPtr pUIDBuffer;  //��ʶָ��
+            public float fStayDuration;  //ͣ��������ʱ��(��λ: ��)
+            public IntPtr pBuffer1;  //ץ��������ͼ��ͼƬ����
+        }
+        
+        
+        //��ֹ����������Ϣ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_BLOCKLIST_INFO_ALARM
+        {
+            public NET_VCA_BLOCKLIST_INFO struBlockListInfo;
+            public uint dwBlockListPicLen;       //��ֹ����������ͼ�ij��ȣ�Ϊ0��ʾû��ͼƬ������0��ʾ��ͼƬ
+            public uint dwFDIDLen;// ������ID����
+            public IntPtr pFDID;  //������Idָ��
+            public uint dwPIDLen;// ������ͼƬID����
+            public IntPtr pPID;  //������ͼƬIDָ��
+            public ushort wThresholdValue; //��������ֵ[0,100]
+            public byte byIsNoSaveFDPicture;//0-����������ͼƬ,1-������������ͼƬ, �������˵���ͼƬ���߽�ģʱ������ԭͼ����ʱ,���ֶη���1,��ʱ������ͼƬ�����ٷ���
+            public byte byRealTimeContrast;//�Ƿ�ʵʱ���� 0-ʵʱ 1-��ʵʱ
+            public IntPtr pBuffer1;//ָ��ͼƬ��ָ��
+        }
+
+        //��ֹ�����ȶԽ�������ϴ�
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_FACESNAP_MATCH_ALARM
+        {
+            public uint dwSize;             // �ṹ��С
+            public float fSimilarity; //���ƶȣ�[0.001,1]
+            public NET_VCA_FACESNAP_INFO_ALARM struSnapInfo; //ץ����Ϣ
+            public NET_VCA_BLOCKLIST_INFO_ALARM struBlockListInfo; //��ֹ������Ϣ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] sStorageIP;        //�洢����IP��ַ
+            public ushort wStoragePort;            //�洢����˿ں�
+            public byte byMatchPicNum; //ƥ��ͼƬ��������0-���������豸���ֵĬ��0�����豸���ֵΪ0ʱ��ʾ����û��ƥ���ͼƬ��Ϣ��
+            public byte byPicTransType;//ͼƬ���ݴ��䷽ʽ: 0-�����ƣ�1-url
+            public uint dwSnapPicLen;//�豸ʶ��ץ��ͼƬ����
+            public IntPtr pSnapPicBuffer;//�豸ʶ��ץ��ͼƬָ��
+            public NET_VCA_RECT struRegion;//Ŀ��߽���豸ʶ��ץ��ͼƬ�У�������ͼ����
+            public uint dwModelDataLen;//��ģ���ݳ���
+            public IntPtr pModelDataBuffer;// ��ģ����ָ��
+            public byte byModelingStatus;// ��ģ״̬
+            public byte byLivenessDetectionStatus;//������״̬��0-������1-δ֪�����ʧ�ܣ���2-������������3-����������4-δ����������
+            public byte cTimeDifferenceH;         /*��UTC��ʱ�Сʱ����-12 ... +14�� +��ʾ����,0xff��Ч*/
+            public byte cTimeDifferenceM;      	/*��UTC��ʱ����ӣ���-30, 30, 45�� +��ʾ������0xff��Ч*/    
+            public byte byMask;                //ץ��ͼ�Ƿ�����֣�0-������1-δ֪��2-�������֣�3-������
+            public byte bySmile;               //ץ��ͼ�Ƿ�΢Ц��0-������1-δ֪��2-��΢Ц��3-΢Ц
+            public byte byContrastStatus;      //�ȶԽ����0-������1-�ȶԳɹ���2-�ȶ�ʧ��
+            public byte byBrokenNetHttp;     //����������־λ��0-�����ش����ݣ�1-�ش�����
+        }   
+   
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_BLOCKLIST_INFO_ALARM_LOG
+        {
+            public NET_VCA_BLOCKLIST_INFO struBlockListInfo; //��ֹ����������Ϣ
+            public uint dwBlockListPicID;       //��ֹ����������ͼID�����ڲ���ͼƬ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;              // �����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_FACESNAP_INFO_ALARM_LOG
+        {
+            public uint dwRelativeTime;     // ���ʱ��
+            public uint dwAbsTime;			// ����ʱ��
+            public uint dwSnapFacePicID;       //ץ������ͼID
+            public NET_VCA_DEV_INFO struDevInfo;		//ǰ���豸��Ϣ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;              // �����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_FACESNAP_MATCH_ALARM_LOG
+        {
+            public uint dwSize;     		// �ṹ��С
+            public float fSimilarity; //���ƶȣ�[0.001,1]
+            public NET_VCA_FACESNAP_INFO_ALARM_LOG  struSnapInfoLog; //ץ����Ϣ
+            public NET_VCA_BLOCKLIST_INFO_ALARM_LOG struBlockListInfoLog; //��ֹ������Ϣ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 60, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;              // �����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_FACEMATCH_PICCOND
+        {
+            public uint dwSize;     		// �ṹ��С
+            public uint dwSnapFaceID; //ץ��������ͼID
+            public uint dwBlockListID; //ƥ��Ľ�ֹ����ID
+            public uint dwBlockListFaceID; //�ȶԵĽ�ֹ����������ͼID
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;              // �����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_FACEMATCH_PICTURE
+        {
+            public uint dwSize;     		// �ṹ��С
+            public uint dwSnapFaceLen; //ץ��������ͼ����
+            public uint dwBlockListFaceLen; //�ȶԵĽ�ֹ����������ͼ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;              //�����ֽ�
+            public IntPtr pSnapFace;  //ץ��������ͼ��ͼƬ����
+            public IntPtr pBlockListFace;  //�ȶԵĽ�ֹ����������ͼ����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_BLOCKLIST_FASTREGISTER_PARA
+        {
+            public uint dwSize;   //�ṹ��С
+            public NET_VCA_BLOCKLIST_INFO struBlockListInfo;  //��ֹ������������
+            public uint dwImageLen;  //ͼ�����ݳ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 124, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;  //����
+            public IntPtr pImage;    //ͼ������
+        }
+
+        //������������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_SINGLE_PATH
+        {
+            public byte byActive;  // �Ƿ����,0-��,1-�� 
+            public byte byType;   //0-�洢ץ�ģ�1-�洢��ֹ�����ȶԱ�����2-�洢ץ�ĺͽ�ֹ�����ȶԱ�����0xff-��Ч
+            public byte bySaveAlarmPic; //�Ƿ����ڱ�������ı���ͼƬ��0-��1-��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 5, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1; //����
+            public uint dwDiskDriver;   //�̷��ţ���0��ʼ
+            public uint dwLeftSpace;   //Ԥ����������λΪG��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2; //����
+        }
+
+        //�洢·������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_SAVE_PATH_CFG
+        { 
+            public uint dwSize;   //�ṹ��С
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DISKNUM_V30, ArraySubType = UnmanagedType.Struct)]
+            public NET_VCA_SINGLE_PATH[] struPathInfo; //��������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 40, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; //����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DEV_ACCESS_CFG
+        {
+            public uint   dwSize;
+            public NET_DVR_IPADDR struIP;		//�����豸��IP��ַ
+            public ushort wDevicePort;			 	//�˿ں�
+            public byte byEnable;		         //�Ƿ����ã�0-��1-��
+            public byte byRes1;				//����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUserName;	//�����豸�ĵ�¼�ʺ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassword;	//�����豸�ĵ�¼����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 60, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+        /********************************��������ʶ�� end****************************/
+        //�ֱ���
+        public const int NOT_AVALIABLE = 0;
+        public const int SVGA_60HZ = 52505660;
+        public const int SVGA_75HZ = 52505675;
+        public const int XGA_60HZ = 67207228;
+        public const int XGA_75HZ = 67207243;
+        public const int SXGA_60HZ = 84017212;
+        public const int SXGA2_60HZ = 84009020;
+        public const int _720P_60HZ = 83978300;
+        public const int _720P_50HZ = 83978290;
+        public const int _1080I_60HZ = 394402876;
+        public const int _1080I_50HZ = 394402866;
+        public const int _1080P_60HZ = 125967420;
+        public const int _1080P_50HZ = 125967410;
+        public const int _1080P_30HZ = 125967390;
+        public const int _1080P_25HZ = 125967385;
+        public const int _1080P_24HZ = 125967384;
+        public const int UXGA_60HZ = 105011260;
+        public const int UXGA_30HZ = 105011230;
+        public const int WSXGA_60HZ = 110234940;
+        public const int WUXGA_60HZ = 125982780;
+        public const int WUXGA_30HZ = 125982750;
+        public const int WXGA_60HZ = 89227324;
+        public const int SXGA_PLUS_60HZ = 91884860;
+
+        //��ʾͨ������ָ�ģʽ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DISPWINDOWMODE
+        {
+            public byte byDispChanType;//��ʾͨ�����ͣ�0-VGA, 1-BNC, 2-HDMI, 3-DVI
+            public byte byDispChanSeq;//��ʾͨ�����,��1��ʼ�����������VGA�����ʾ�ڼ���VGA
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_WINDOWS_NUM, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDispMode;
+        }
+
+        //��ʾͨ����Ϣ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DISPINFO
+        {
+            public byte byChanNums;//ͨ������
+            public byte byStartChan;//��ʼͨ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_SUPPORT_RES, ArraySubType = UnmanagedType.U1)]
+            public uint[] dwSupportResolution;//֧�ֵķֱ���
+        }
+
+        //����ƴ����Ϣ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SCREENINFO
+        {
+            public byte bySupportBigScreenNums;//������ƴ������
+            public byte byStartBigScreenNum;//����ƴ����ʼ��
+            public byte byMaxScreenX;//����ƴ��ģʽ
+            public byte byMaxScreenY;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MATRIX_ABILITY_V41
+        {
+            public uint dwSize;
+            public byte byDspNums;//DSP����  
+            public byte byDecChanNums;//����ͨ����
+            public byte byStartChan;//��ʼ����ͨ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 5, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+
+            public NET_DVR_DISPINFO struVgaInfo;//VGA��ʾͨ����Ϣ
+            public NET_DVR_DISPINFO struBncInfo;//BNC��ʾͨ����Ϣ
+            public NET_DVR_DISPINFO struHdmiInfo;//HDMI��ʾͨ����Ϣ
+            public NET_DVR_DISPINFO struDviInfo;//DVI��ʾͨ����Ϣ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DISPNUM_V41, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_DISPWINDOWMODE[] struDispMode;
+            public NET_DVR_SCREENINFO struBigScreenInfo;
+            public byte bySupportAutoReboot; //�Ƿ�֧���Զ�������0-��֧�֣�1-֧��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 119, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        public const int MAX_WINDOWS = 16;//��󴰿���
+        public const int MAX_WINDOWS_V41 = 36;
+        
+        public const int STARTDISPCHAN_VGA = 1;
+        public const int STARTDISPCHAN_BNC = 9;
+        public const int STARTDISPCHAN_HDMI	= 25;
+        public const int STARTDISPCHAN_DVI = 29;
+
+        [StructLayoutAttribute(LayoutKind.Explicit)]
+        public struct NET_DVR_VIDEO_PLATFORM
+        {
+            [FieldOffsetAttribute(0)]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 160, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            /*[FieldOffsetAttribute(0)]
+            public VideoPlatform struVideoPlatform;
+            [FieldOffsetAttribute(0)]
+            public NotVideoPlatform struNotVideoPlatform;
+             * */
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct VideoPlatform
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_WINDOWS_V41, ArraySubType = UnmanagedType.I1)]
+            public byte[] byJoinDecoderId;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_WINDOWS_V41, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDecResolution;
+            public NET_DVR_RECTCFG struPosition; //��ʾͨ���ڵ���ǽ��λ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 80, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NotVideoPlatform
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 160, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        /*��ʾͨ�����ýṹ��*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MATRIX_VOUTCFG
+        {
+            public uint dwSize;
+            public byte byAudio;			/*��Ƶ�Ƿ���*/
+            public byte byAudioWindowIdx;      /*��Ƶ�����Ӵ���*/
+            public byte byDispChanType;      /*��ʾͨ�����ͣ�0-BNC��1-VGA��2-HDMI��3-DVI��4-YPbPr(���뿨������DECODER_SERVERר��)*/
+            public byte byVedioFormat;         /*1:NTSC,2:PAL��0-NULL*/
+            public uint dwResolution;//�ֱ���
+            public uint dwWindowMode;		/*����ģʽ����������ȡ*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_WINDOWS_V41, ArraySubType = UnmanagedType.I1)]
+            public byte[] byJoinDecChan;/*�����Ӵ��ڹ����Ľ���ͨ��,�豸֧�ֽ�����Դ�Զ�����ʱ�˲����������*/
+            public byte byEnlargeStatus;          /*�Ƿ��ڷŴ�״̬��0�����Ŵ�1���Ŵ�*/
+            public byte byEnlargeSubWindowIndex;//�Ŵ���Ӵ��ں�
+            public byte byScale; /*��ʾģʽ��0---��ʵ��ʾ��1---������ʾ( ���BNC )*/
+            public byte byUnionType;/*���ֹ�����,0-��Ƶ�ۺ�ƽ̨�ڲ���������ʾͨ�����ã�1-������������ʾͨ������*/
+            public NET_DVR_VIDEO_PLATFORM struDiff;
+            public uint dwDispChanNum; //��ʾ����ţ��˲�����ȫ����ȡʱ��Ч
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 76, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        } 
+
+        /*�������豸״̬*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DISP_CHAN_STATUS_V41
+        {
+            public byte byDispStatus;      /*��ʾ״̬��0��δ��ʾ��1��������ʾ*/
+            public byte byBVGA;              /*0-BNC��1-VGA�� 2-HDMI��3-DVI��0xff-��Ч*/
+            public byte byVideoFormat;     /*��Ƶ��ʽ��1:NTSC,2:PAL,0-NON*/
+            public byte byWindowMode;       /*����ģʽ*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_WINDOWS_V41, ArraySubType = UnmanagedType.I1)]
+            public byte[] byJoinDecChan;   /*�����ӻ�������Ľ���ͨ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_WINDOWS_V41, ArraySubType = UnmanagedType.I1)]
+            public byte[] byFpsDisp;        /*ÿ���ӻ������ʾ֡��*/
+            public byte byScreenMode;		/*��Ļģʽ0-��ͨ 1-����*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public uint dwDispChan; /*��ȡȫ����ʾͨ��״̬ʱ��Ч������ʱ����0*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 24, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
+        }
+
+        /*�������豸״̬*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DECODER_WORK_STATUS_V41
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_MATRIX_CHAN_STATUS[] struDecChanStatus;     /*����ͨ��״̬*/
+	        /*��ʾͨ��״̬*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DISPNUM_V41, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_DISP_CHAN_STATUS_V41[] struDispChanStatus;     
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAlarmInStatus;         /*��������״̬*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAlarmOutStatus;       /*�������״̬*/
+            public byte byAudioInChanStatus;          /*�����Խ�״̬*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 127, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        /*******************************�ļ��ط�-Զ�̻ط�����*******************************/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MATRIX_DEC_REMOTE_PLAY_V41
+        {
+            public uint dwSize;
+            public NET_DVR_IPADDR	struIP;		/* DVR IP��ַ */	
+            public ushort wDVRPort;			/* �˿ں� */	
+            public byte byChannel;			/* ͨ���� */
+            public byte byReserve;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUserName;		/* �û��� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassword;		/* ���� */
+            public uint dwPlayMode;   	/* 0�����ļ� 1����ʱ��*/        	
+            public NET_DVR_TIME StartTime;
+            public NET_DVR_TIME StopTime;
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 128)]
+            public string sFileName;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;		/*����*/
+        }
+
+        public const int MAX_BIGSCREENNUM_SCENE = 100;
+
+        //��ʾͨ�����ýṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_RECTCFG_SCENE
+        {
+            public ushort wXCoordinate; /*�������Ͻ���ʼ��X����*/
+            public ushort wYCoordinate; /*�������Ͻ�Y����*/
+            public ushort wWidth;       /*�����*/
+            public ushort wHeight;      /*���θ߶�*/
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SCENEDISPCFG
+        {
+            public byte byEnable;//�Ƿ����ã�0-�����ã�1-����
+            public byte bySoltNum;//���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public byte byDispChanNum;
+            public byte byAudio;				/*��Ƶ�Ƿ���,0-��1-��*/
+            public byte byAudioWindowIdx;      /*��Ƶ�����Ӵ���*/
+            public byte byVedioFormat;          /*1:NTSC,2:PAL��0-NULL*/
+            public byte byWindowMode;			/*����ģʽ������������ȡ*/
+            public byte byEnlargeStatus;         /*�Ƿ��ڷŴ�״̬��0�����Ŵ�1���Ŵ�*/
+            public byte byEnlargeSubWindowIndex;//�Ŵ���Ӵ��ں�    
+            public byte byScale; /*��ʾģʽ��0-��ʵ��ʾ��1-������ʾ( ���BNC )*/
+            public uint dwResolution;//�ֱ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_WINDOWS_V41, ArraySubType = UnmanagedType.I1)]
+            public byte[] byJoinDecChan;/*�����Ӵ��ڹ����Ľ���ͨ��*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_WINDOWS_V41, ArraySubType = UnmanagedType.I1)]
+            public byte[] byJoinDecoderId;/*���*/
+            //��ʾ����������Ƶ�ֱ��ʣ�1-D1,2-720P,3-1080P���豸����Ҫ���ݴ�//�ֱ��ʽ��н���ͨ���ķ��䣬��1�������ó�1080P�����豸���4������ͨ����������˽���ͨ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_WINDOWS_V41, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDecResolution;
+            public byte byRow;//�������ڵ��е����
+            public byte byColumn;//�������ڵ��е����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 5, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+            public NET_DVR_RECTCFG struDisp; //����ǽ��ʾλ��
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DEV_CHAN_INFO_SCENE
+        {
+            public NET_DVR_IPADDR struIP;				/* DVR IP��ַ */
+            public ushort wDVRPort;			 	/* �˿ں� */
+            public byte byChannel;		/* ͨ���ţ�����9000���豸��IPC���룬ͨ���Ŵ�33��ʼ */
+            public byte byTransProtocol;		/* ����������0-TCP��1-UDP ��2-MCAST��3-RTP*/
+            public byte byTransMode;			/* ��������ģʽ 0�������� 1��������*/
+            public byte byFactoryType;				/*ǰ���豸��������*/
+            public byte byDeviceType;			//�豸���ͣ�1-IPC��2- ENCODER
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 5, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUserName;	/* ����������½�ʺ� */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassword;	/* ������������ */
+        }
+
+        /*��ý���������������*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_STREAM_MEDIA_SERVER_CFG_SCENE
+        {
+            public byte byValid;			/*�Ƿ�������ý�������ȡ��,0��ʾ��Ч*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_DVR_IPADDR struDevIP;	/*��ý���������ַ*/
+            public ushort wDevPort;			/*��ý��������˿�*/
+            public byte byTransmitType;		/*����������0-TCP��1-UDP */
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 5, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PU_STREAM_CFG_SCENE
+        {
+            public NET_DVR_STREAM_MEDIA_SERVER_CFG_SCENE	streamMediaServerCfg;
+            public NET_DVR_DEV_CHAN_INFO_SCENE				struDevChanInfo;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CYC_SUR_CHAN_ELE_SCENE
+        {
+            public byte byEnable;	/* �Ƿ����� 0���� 1������*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public NET_DVR_STREAM_MEDIA_SERVER_CFG_SCENE	struStreamMediaSvrCfg;	
+            public NET_DVR_DEV_CHAN_INFO_SCENE			struDecChanInfo;	/*��Ѳ����ͨ����Ϣ*/
+        }
+
+        //��Ѳ����ṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MATRIX_LOOP_DECINFO_SCENE
+        {
+            public ushort wPoolTime;		/*��ѯ���*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CYCLE_CHAN, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_CYC_SUR_CHAN_ELE_SCENE[] struChanArray;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_BIGSCREENCFG_SCENE
+        {
+            public byte byAllValid; /*����ʹ�ܱ�־ */
+            public byte byAssociateBaseMap;//�����ĵ�ͼ��ţ�0����������
+            public byte byEnableSpartan;//��������ʹ�ܣ�1-����0-��
+            public byte byRes;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_LAYERNUMS, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_WINCFG[] struWinCfg;
+            public NET_DVR_BIGSCREENCFG struBigScreen;
+
+            public void Init()
+            {
+                struBigScreen = new NET_DVR_BIGSCREENCFG();
+                struWinCfg = new NET_DVR_WINCFG[MAX_LAYERNUMS];
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MATRIX_SCENECFG
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sSceneName;
+            public byte byBigScreenNums;//�����ĸ��������ֵͨ����������ȡ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public ushort wDecChanNums;//�����н���ͨ���ĸ���
+            public ushort wDispChanNums;//��������ʾͨ���ĸ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 12, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+            public IntPtr pBigScreenBuffer;//�������û�����, byBigScreenNums��sizeof(NET_DVR_BIGSCREENCFG_SCENE)
+            public IntPtr pDecChanBuffer;//����ͨ�����û�����, wDecChanNums��sizeof(NET_DVR_DECODECHANCFG_SCENE)
+            public IntPtr pDispChanBuffer;//��ʾͨ�����û�����, wDispChanNums��sizeof(NET_DVR_SCENEDISPCFG)
+            public void Init()
+            {
+                sSceneName = new byte[NAME_LEN];
+                byRes1 = new byte[3];
+                byRes1 = new byte[12];
+            }
+        }
+        public const int NET_DVR_GET_ALLWINCFG = 1503; //���ڲ�����ȡ
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_BIGSCREENASSOCIATECFG
+        {
+            public uint dwSize;
+            public byte byEnableBaseMap;//ʹ�ܵ�ͼ��ʾ
+            public byte byAssociateBaseMap;//�����ĵ�ͼ��ţ�0����������
+            public byte byEnableSpartan;//��������ʹ�ܣ�1-����0-��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 21, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+        
+        /*******************************��������*******************************/
+        public const int MAX_WIN_COUNT = 224; //֧�ֵ���󿪴���
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SCREEN_WINCFG{
+            public uint dwSize;
+            public byte byVaild;
+            public byte byInputType;		//��CAM_MDOE
+            public ushort wInputIdx;			/*����Դ����*/
+            public uint dwLayerIdx;			/*ͼ�㣬0Ϊ��ײ�*/
+            public NET_DVR_RECTCFG struWin;	//Ŀ�Ĵ���(�����ʾǽ)
+            public byte byWndIndex;			//���ں�
+            public byte byCBD;				//0-�ޣ�1-��������2-��������
+            public byte bySubWnd;			//0���ǣ�1��
+            public byte byRes1;
+            public uint dwDeviceIndex;//�豸���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_WINLIST
+        {
+            public uint dwSize;
+            public ushort wScreenSeq;	//�豸���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 10, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public uint dwWinNum;	//�豸���صĴ�������
+            public IntPtr pBuffer;	//������Ϣ�����������Ϊ224*sizeof(NET_DVR_WINCFG)
+            public uint dwBufLen;	//������ָ�볤��
+        }
+
+        public const int MAX_LAYOUT_COUNT = 16;		//��󲼾���
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_LAYOUTCFG
+        {
+            public uint dwSize;
+            public byte byValid;								//�����Ƿ���Ч
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byLayoutName;			//��������			
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_WIN_COUNT, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCREEN_WINCFG[] struWinCfg;	//�����ڴ��ڲ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_LAYOUT_LIST
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_LAYOUT_COUNT, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_LAYOUTCFG[] struLayoutInfo;   //�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        public const int MAX_CAM_COUNT = 224;
+
+        public enum NET_DVR_CAM_MODE
+        {
+	        NET_DVR_UNKNOW  = 0,//��Ч
+	        NET_DVR_CAM_BNC,
+	        NET_DVR_CAM_VGA,
+	        NET_DVR_CAM_DVI,
+	        NET_DVR_CAM_HDMI,
+	        NET_DVR_CAM_IP,
+	        NET_DVR_CAM_RGB,
+            NET_DVR_CAM_DECODER,
+	        NET_DVR_CAM_MATRIX,
+	        NET_DVR_CAM_YPBPR,
+	        NET_DVR_CAM_USB,
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_INPUTSTREAMCFG
+        {
+            public uint dwSize ;
+            public byte byValid ;
+            public byte byCamMode;						//�ź�����Դ���ͣ���NET_DVR_CAM_MODE
+            public ushort wInputNo;						//�ź�Դ���0-224
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sCamName;			//�ź�����Դ����
+            public NET_DVR_VIDEOEFFECT struVideoEffect;	//��Ƶ����
+            public NET_DVR_PU_STREAM_CFG struPuStream;	//ip����ʱʹ��
+            public ushort wBoardNum ;						//�ź�Դ���ڵİ忨��
+            public ushort wInputIdxOnBoard;				//�ź�Դ�ڰ忨�ϵ�λ��
+            public ushort wResolutionX;					//�ֱ���
+            public ushort wResolutionY;
+            public byte byVideoFormat;					//��Ƶ��ʽ��0-�ޣ�1-NTSC��2-PAL
+            public byte byNetSignalResolution;	//; 1-CIF 2-4CIF 3-720P 4-1080P 5-500wp �������ź�Դ�ķֱ��ʣ������������ź�Դʱ�����豸���豸��������ֱ��������������Դ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sGroupName;	//�����ź�Դ���� ����
+            public byte byJointMatrix;			//  �������� ��0-������  1-����
+            public byte byRes;  
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_INPUTSTREAM_LIST
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CAM_COUNT, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_INPUTSTREAMCFG[] struInputStreamInfo; //�����ź�Դ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        /*******************************�����������*******************************/
+        /*���ͨ������*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_OUTPUTPARAM
+        {
+            public uint  dwSize;
+            public byte byMonMode;		/*�������ģʽ,1-BNC,2-VGA,3-DVI,4-HDMI*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public uint  dwResolution;	/*�ֱ��ʣ�������������ȡ��֧�ֵĽ�������*/
+            public NET_DVR_VIDEOEFFECT  struVideoEffect;	/*���ͨ����Ƶ��������*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_OUTPUTCFG
+        {
+            public uint dwSize;
+            public byte byScreenLayX;						//��������-������
+            public byte byScreenLayY;						//��������-������
+            public ushort wOutputChanNum;					//���ͨ��������0��ʾ�豸֧�ֵ�������ͨ������������������������ȡ������ֵ��ʾʵ�����ͨ������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_DVR_OUTPUTPARAM struOutputParam;	/*���ͨ����Ƶ��������*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] sWallName;					//����ǽ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        /*******************************������*******************************/
+        public const int SCREEN_PROTOCOL_NUM = 20;   //֧�ֵ�������������Э����
+        
+        //����������������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SCREENSERVER_ABILITY
+        {
+            public uint dwSize;   			/*�ṹ����*/
+            public byte byIsSupportScreenNum; /*��֧�ִ�������������Ŀ*/
+            public byte bySerialNums;			//���ڸ���
+            public byte byMaxInputNums;
+            public byte byMaxLayoutNums;
+            public byte byMaxWinNums;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 19, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public byte byMaxScreenLayX;//��������-�������������
+            public byte byMaxScreenLayY;//��������-��������������
+            public ushort wMatrixProtoNum; /*��Ч�Ĵ���Э����Ŀ*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = SCREEN_PROTOCOL_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_PROTO_TYPE[] struScreenProto;/*���Э���б�*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 24, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        //����������������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SCREENCONTROL_ABILITY
+        {
+            public uint dwSize;   		/*�ṹ����*/
+            public byte byLayoutNum; 		/* ���ָ���*/
+            public byte byWinNum; 			/*��Ļ���ڸ���*/
+            public byte byOsdNum;  		/*OSD����*/
+            public byte byLogoNum; 		/*Logo����*/
+            public byte byInputStreamNum;  //����Դ���� ---�豸֧���������ͨ��������������������Դ����������Դ��
+            public byte byOutputChanNum;	//���ͨ������---�豸֧��������ͨ������
+            public byte byCamGroupNum;		/*�������*/
+            public byte byPlanNum;    		/*Ԥ������*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 5, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public byte byIsSupportPlayBack;  /*�Ƿ�֧�ֻط�*/	
+            public byte byMatrixInputNum;  //֧���������������
+            public byte byMatrixOutputNum; //֧���������������
+            public NET_DVR_DISPINFO struVgaInfo;//VGA�����Ϣ
+            public NET_DVR_DISPINFO struBncInfo;//BNC�����Ϣ
+            public NET_DVR_DISPINFO struHdmiInfo;//HDMI�����Ϣ
+            public NET_DVR_DISPINFO struDviInfo;//DVI�����Ϣ
+            public byte byMaxUserNums;//֧���û���
+            public byte byPicSpan;		//��ͼ��ȣ�һ�ŵ�ͼ���ɸ��ǵ���Ļ��
+            public ushort wDVCSDevNum;	//�ֲ�ʽ��������������豸��
+            public ushort wNetSignalNum;	//�����������Դ����
+            public ushort wBaseCoordinateX;//��׼����
+            public ushort wBaseCoordinateY; 
+            public byte byExternalMatrixNum;	//�����Ӿ������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 49, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        /*******************************�����ź�״̬*******************************/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ANALOGINPUTSTATUS
+        {
+            public uint dwLostFrame;		/*��Ƶ���붪֡��*/
+            public byte byHaveSignal;		/*�Ƿ�����Ƶ�ź�����*/
+            public byte byVideoFormat;		/*��Ƶ��ʽ��1��NTSC,2��PAL,0����*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 46, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        } 
+
+        [StructLayoutAttribute(LayoutKind.Explicit)]
+        public struct NET_DVR_INPUTSTATUS_UNION
+        {
+            [FieldOffsetAttribute(0)]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 52, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+
+            /*[FieldOffsetAttribute(0)]
+            public NET_DVR_MATRIX_CHAN_STATUS struIpInputStatus;
+            [FieldOffsetAttribute(0)]
+            public NET_DVR_ANALOGINPUTSTATUS struAnalogInputStatus;
+             * */
+        }
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_INPUTSTATUS
+        {
+            public ushort wInputNo;		/*�ź�Դ���*/
+            public byte byInputType;	//��NET_DVR_CAM_MODE
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 9, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_DVR_INPUTSTATUS_UNION struStatusUnion;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SCREENINPUTSTATUS
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 12, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public uint dwNums;		//�豸���ص�����Դ״̬������
+            public IntPtr pBuffer;	//������
+            public uint dwBufLen;	//������ָ�볤�ȣ��������
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SCREENALARMCFG
+        {
+            public uint dwSize;
+            public byte byAlarmType;	//�������ͣ�1-�Ӱ�γ���2-�Ӱ���룬3-��ϵͳ״̬�쳣��4-��ϵͳ�ָ��ָ� 5-����Դ�쳣   6-�¶ȱ��� 7-FPGA�汾��ƥ�� 8-Ԥ����ʼ 9-Ԥ������ 10-�������� 11-�����IP��ַ��ͻ��12-�����쳣
+            public byte byBoardType;	// 1-����� 2-����� ��3-���壬4-���壬��������Ϊ1��2��3��6��ʱ��ʹ�� 
+            public byte bySubException;	//�����쳣ʱ�������쳣 1- �ֱ��������ı� 2-����˿����͸ı�3-�ֱ��ʴ���4-�ֱ��ʸı䵼�½�����Դ���㣬�رո�����Դ��Ӧ���ڡ�5-�ֱ��ʸı䣬�����ѿ��������ű�������1/8��8����Χ��6-�ֱ��ʻָ�����,7-�ֱ��ʸı䵼�����������������,�豸�رմ��� 
+            public byte byRes1;
+            public ushort wStartInputNum; // �쳣����Դ���쳣��㣩 
+            public ushort wEndInputNum;	// �쳣����Դ���쳣�յ㣩 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;	   
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MATRIX_CFG
+        {
+            public byte byValid;				//�ж��Ƿ���ģ������Ƿ���Ч��
+            public byte byCommandProtocol;	//ģ������ָ�4�֣�
+            public byte byScreenType;			//����	
+            public byte byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byScreenToMatrix;	//ģ�������������Ļ�Ķ�Ӧ��ϵ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DIGITALSCREEN
+        {
+            public NET_DVR_IPADDR  struAddress;/*�豸Ϊ�����豸ʱ��IP��Ϣ*/
+            public ushort wPort;		//ͨ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 26, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;  //����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ANALOGSCREEN
+        {
+            public byte byDevSerPortNum;   /*�����豸�Ĵ��ں�*/
+            public byte byScreenSerPort;  /*���Ӵ����Ĵ��ں�*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 130, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;   
+            public NET_DVR_MATRIX_CFG struMatrixCfg;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Explicit)]
+        public struct NET_DVR_SCREEN_UNION
+        {
+            [FieldOffsetAttribute(0)]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 172, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;  
+            
+            /*[FieldOffsetAttribute(0)]
+            public NET_DVR_DIGITALSCREEN struDigitalScreen;
+            [FieldOffsetAttribute(0)]
+            public NET_DVR_ANALOGSCREEN struAnalogScreen;
+             * */
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SCREEN_SCREENINFO
+        {
+            public uint dwSize;
+            public byte byValid;				//�Ƿ���Ч
+            public byte nLinkMode;				//���ӷ�ʽ��0-���ڣ�1-����
+            public byte byDeviceType;			//�豸�ͺţ���������ȡ
+            public byte byScreenLayX;			//��������-������
+            public byte byScreenLayY;			//��������-������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUserName;	/*��¼�û���*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PASSWD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPassword; /*��¼����*/   
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sDevName;	/*�豸����*/
+            public NET_DVR_SCREEN_UNION struScreenUnion;
+            public byte byInputNum;			// ����Դ����
+            public byte byOutputNum;			// ���Դ����
+            public byte byCBDNum;				//CBD����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 29, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        /*******************************��ͼ�ϴ�*******************************/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_BASEMAP_CFG
+        {	
+            public byte byScreenIndex;         //��Ļ�����
+            public byte byMapNum;				/*���ָ���˶��ٿ�*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] res;
+            public ushort wSourWidth;			/* ԭͼƬ�Ŀ��� */
+            public ushort wSourHeight;			/* ԭͼƬ�ĸ߶� */
+        }            
+
+        /*******************************OSD*******************************/
+        public const int MAX_OSDCHAR_NUM = 256;
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_OSDCFG
+        {
+            public uint dwSize;
+            public byte byValid;    /*�Ƿ���Ч 0��Ч 1��Ч*/
+            public byte byDispMode;  //��ʾģʽ��1-͸����2-��͸����3-��������ģʽ
+            public byte byFontColorY; /*������ɫY,0-255*/
+            public byte byFontColorU; /*������ɫU,0-255*/
+            public byte byFontColorV; /*������ɫV,0-255*/
+            public byte byBackColorY; /*������ɫY,0-255*/
+            public byte byBackColorU; /*������ɫU,0-255*/
+            public byte byBackColorV; /*������ɫV,0-255*/
+            public ushort wXCoordinate;   /*OSD����Ļ���Ͻ�λ��x*/
+            public ushort wYCoordinate;   /*OSD����Ļ���Ͻ�λ��y*/
+            public ushort wWidth;       /*OSD����*/
+            public ushort wHeight;      /*OSD�߶�*/
+            public uint dwCharCnt;     /*�ַ��ĸ���*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_OSDCHAR_NUM, ArraySubType = UnmanagedType.U2)]
+            public ushort[] wOSDChar;       /*OSD�ַ�����*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        /*******************************��ȡ������Ϣ*******************************/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SERIAL_CONTROL
+        { 
+            public uint dwSize ;
+            public byte bySerialNum;        // ���ڸ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] bySerial;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        /*******************************��Ļ����*******************************/
+        //��Ļ����Դ����
+        public enum INPUT_INTERFACE_TYPE
+        {
+	        INTERFACE_VGA = 0,
+	        INTERFACE_SVIDEO, // 2046NL��֧�֣�2046NH֧��
+	        INTERFACE_YPBPR,
+	        INTERFACE_DVI ,
+	        INTERFACE_BNC , 
+	        INTERFACE_DVI_LOOP,//(��ͨ) 2046NH��֧�֣�2046NL֧��
+	        INTERFACE_BNC_LOOP, //(��ͨ) 2046NH��֧�֣�2046NL.֧��
+	        INTERFACE_HDMI,
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_INPUT_INTERFACE_CTRL
+        {
+            public byte byInputSourceType;	//��INPUT_INTERFACE_TYPE
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 15, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+        
+        //��ʾ��Ԫ��ɫ����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DISPLAY_COLOR_CTRL
+        {
+            public byte byColorType;		//1-���� 2-�Աȶ� 3-���Ͷ� 4-������
+            public char	byScale;			//-1 ��0��+1����ֵ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 14, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //��ʾ��Ԫλ�ÿ���
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DISPLAY_POSITION_CTRL
+        {
+            public byte byPositionType;	//1-ˮƽλ�� 2-��ֱλ�ã�
+            public char byScale;			//-1 ��0��+1����ֵ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 14, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Explicit)]
+        public struct NET_DVR_SCREEN_CONTROL_PARAM
+        {
+            /*[FieldOffsetAttribute(0)]
+            public NET_DVR_INPUT_INTERFACE_CTRL struInputCtrl;
+            [FieldOffsetAttribute(0)]
+            public NET_DVR_DISPLAY_COLOR_CTRL struDisplayCtrl;
+            [FieldOffsetAttribute(0)]
+            public NET_DVR_DISPLAY_POSITION_CTRL struPositionCtrl;
+            [FieldOffsetAttribute(0)]
+             * */
+            [FieldOffsetAttribute(0)]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SCREEN_CONTROL
+        { 	
+            public uint dwSize;			 
+            public uint dwCommand ;      /* ���Ʒ��� 1-�� 2-�� 3-��Ļ����Դѡ�� 4-��ʾ��Ԫ��ɫ���� 5-��ʾ��Ԫλ�ÿ���*/
+            public byte byProtocol;      //����������,1:LCD-S1,2:LCD-S2
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_DVR_SCREEN_CONTROL_PARAM	struControlParam;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 52, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;	
+        }
+
+        /*******************************��Ļ����V41*******************************/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SCREEN_CONTROL_V41
+        { 	
+            public uint dwSize;
+            public byte bySerialNo;		//���ں�
+            public byte byBeginAddress;	//���Ͻ���Ļ�ţ���1��ʼ
+            public byte byEndAddress;	//���½���Ļ�ţ���1��ʼ
+            public byte byProtocol;      	   // ����������  1-LCD-S1 , 2-LCD-S2 , 3-LCD-L1 �� 4-LCD-DLP�� 5-LCD-S3 , 6-LCD-H1 
+            public uint dwCommand ;      /* ���Ʒ��� 1-�� 2-�� 3-��Ļ����Դѡ�� 4-��ʾ��Ԫ��ɫ���� 5-��ʾ��Ԫλ�ÿ���*/
+            public NET_DVR_SCREEN_CONTROL_PARAM	struControlParam;
+            public byte byWallNo;		// ����ǽ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 51, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;	
+        }
+
+        /*******************************Ԥ������*******************************/
+        public const int MAX_PLAN_ACTION_NUM = 32; 	//Ԥ����������
+        public const int DAYS_A_WEEK = 7;	//һ��7��
+        public const int MAX_PLAN_COUNT = 16;	//Ԥ������
+
+        public enum NET_DVR_PLAN_OPERATE_TYPE
+        {
+	        NET_DVR_SWITCH_LAYOUT = 1, 		// �����л� Ĭ��
+	        NET_DVR_SCREEN_POWER_OFF,  		// �رմ���Ļ��ʾ
+	        NET_DVR_SCREEN_POWER_ON,   		// �򿪴���Ļ��ʾ
+        }
+
+        /*Ԥ������Ϣ*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PLAN_INFO
+        {
+            public byte byValid;      	// �����Ƿ���Ч
+            public byte byType;       	// ������NET_DVR_PLAN_OPERATE_TYPE
+            public ushort wLayoutNo;  	// ���ֺ�
+            public byte byScreenStyle;    //��Ļ�ͺţ����ػ����ã�1�ǵ�����2�Ǹ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public uint dwDelayTime;  	// һ���������ʱ��, ��λ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CYCLE_TIME
+        {
+            public byte byValid; 
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public NET_DVR_TIME_EX struTime;
+        }
+
+        /*Ԥ������*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PLAN_CFG
+        {
+            public uint dwSize;
+            public byte byValid;      	// ��Ԥ���Ƿ���Ч
+            public byte byWorkMode;  	// Ԥ������ģʽ 1��ʾ�ֶ���2�Զ���3Ԥ��ѭ��
+            public byte byWallNo;		//����ǽ�ţ���1��ʼ
+            public byte byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byPlanName; //Ԥ������
+            public NET_DVR_TIME_EX struTime; // ����ģʽΪ�Զ�ʱʹ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = DAYS_A_WEEK, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_CYCLE_TIME[] struTimeCycle; /*ѭ��ʱ�䣬����Ϊһ�����ڣ��ꡢ�¡�������������ʹ�á��磺struTimeCycle[0]�е�byValid��ֵ��1����ʾ������ִ�и�Ԥ��������ȡֵ����Ϊ[0,6]������0���������죬1��������һ���Դ�����*/
+            public uint dwWorkCount;  	// Ԥ������ִ�д�����0Ϊһֱѭ�����ţ�����ֵ��ʾ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_PLAN_ACTION_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_PLAN_INFO[] strPlanEntry;  // Ԥ��ִ�е�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        /*******************************��ȡ�豸״̬*******************************/
+        /*Ԥ���б�*/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PLAN_LIST
+        {
+            public uint dwSize;
+            public uint dwPlanNums;			//�豸�����ź�Դ����
+            public IntPtr pBuffer;			//ָ��dwInputSignalNums��NET_DVR_PLAN_CFG�ṹ��С�Ļ�����
+            public byte byWallNo;			//ǽ�ţ���1��ʼ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public uint dwBufLen;			//�����仺�������ȣ�������������ڵ���dwInputSignalNums��NET_DVR_PLAN_CFG�ṹ��С��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        /*******************************Ԥ������*******************************/
+        //�ýṹ�����Ϊͨ�ÿ��ƽṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CONTROL_PARAM
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sDeviceID; //�����豸���豸ID
+            public ushort wChan;				 //����ͨ��
+            public byte byIndex;			 //������������������ȷ�������ʾʲô����
+            public byte byRes1;
+            public uint dwControlParam;
+            public byte byMandatoryAlarm;    //1-ʹ��  0-��ʹ��
+            public byte byRes2;
+            public ushort wZoneIndex;  //������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byOperatorCode;//�ؿ���
+            public uint dwPlanNo; //4�ֽ�Ԥ���ţ��ͻ���ͳһʹ��4�ֽڵ�Ԥ���ţ����ֽڵ�Ԥ���Ų���ʹ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes3;
+        }
+
+        /*******************************��ȡ�豸״̬*******************************/
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DEVICE_RUN_STATUS
+        {
+            public uint dwSize;
+            public uint dwMemoryTotal;		//�ڴ�����	��λKbyte
+            public uint dwMemoryUsage;		//�ڴ�ʹ���� ��λKbyte
+            public byte byCPUUsage;			//CPUʹ���� 0-100
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 127, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //91ϵ��HD-SDI����DVR �����Ϣ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ACCESS_CAMERA_INFO
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 32)]
+            public string sCameraInfo;		// ǰ�������Ϣ
+            public byte  byInterfaceType;		// ǰ�˽���ӿ����ͣ�1:VGA, 2:HDMI, 3:YPbPr 4:SDI 5:FC
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public uint dwChannel;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 24, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_AUDIO_INPUT_PARAM
+        {
+            public byte byAudioInputType;  //��Ƶ�������ͣ�0-mic in��1-line in
+            public byte byVolume; //volume,[0-100]
+            public byte byEnableNoiseFilter; //�Ƿ�����������-�أ�-��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 5, ArraySubType = UnmanagedType.I1)]
+            public byte[] byres;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CAMERA_DEHAZE_CFG
+        {
+            public uint dwSize;
+            public byte byDehazeMode; //0-�����ã�1-�Զ�ģʽ��2-��
+            public byte byLevel; //�ȼ���0-100
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 6, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; 
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_INPUT_SIGNAL_LIST
+        {
+            public uint dwSize;
+            public uint dwInputSignalNums;	//�豸�����ź�Դ����
+            public IntPtr pBuffer;			//ָ��dwInputSignalNums��NET_DVR_INPUTSTREAMCFG�ṹ��С�Ļ�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public uint dwBufLen;			//�����仺�������ȣ�������������ڵ���dwInputSignalNums��NET_DVR_INPUTSTREAMCFG�ṹ��С��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        //��ȫ����״̬
+        public const int PULL_DISK_SUCCESS = 1;     // ��ȫ���̳ɹ�
+        public const int PULL_DISK_FAIL = 2;        // ��ȫ����ʧ��
+        public const int PULL_DISK_PROCESSING = 3;  // ����ֹͣ����
+        public const int PULL_DISK_NO_ARRAY = 4;	// ������� 
+        public const int PULL_DISK_NOT_SUPPORT = 5; // ��֧�ְ�ȫ����
+
+        //ɨ������״̬
+        public const int SCAN_RAID_SUC = 1; 	// ɨ�����гɹ�
+        public const int SCAN_RAID_FAIL = 2; 	// ɨ������ʧ��
+        public const int SCAN_RAID_PROCESSING = 3;	// ����ɨ������
+        public const int SCAN_RAID_NOT_SUPPORT = 4; // ��֧������ɨ��
+
+        //����ǰ���������״̬
+        public const int SET_CAMERA_TYPE_SUCCESS = 1;  // �ɹ�
+        public const int SET_CAMERA_TYPE_FAIL = 2;  // ʧ��
+        public const int SET_CAMERA_TYPE_PROCESSING	= 3;   // ���ڴ���
+
+        //9000 2.2
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_RECORD_TIME_SPAN_INQUIRY
+        {
+            public uint dwSize;    //�ṹ���С
+            public byte byType;    //0 ��������Ƶ¼��, 1ͼƬͨ��¼��, 2ANRͨ��¼��, 3��֡ͨ��¼��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 63, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; //����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_RECORD_TIME_SPAN
+        {
+            public uint dwSize;        //�ṹ���С
+            public NET_DVR_TIME strBeginTime;  //��ʼʱ��
+            public NET_DVR_TIME strEndTime;    //����ʱ��
+            public byte byType;        //0 ��������Ƶ¼��, 1ͼƬͨ��¼��, 2ANRͨ��¼��, 3��֡ͨ��¼��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 35, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;     //����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DRAWFRAME_DISK_QUOTA_CFG
+        {
+            public uint dwSize;					//�ṹ���С
+            public byte byPicQuota;				//ͼƬ�ٷֱ�	 [0%,  30%]
+            public byte byRecordQuota;				//��ͨ¼��ٷֱ� [20%, 40%]
+            public byte byDrawFrameRecordQuota;	//��֡¼��ٷֱ� [30%, 80%]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 61, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;					//�����ֽ�
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MANUAL_RECORD_PARA
+        {
+            public NET_DVR_STREAM_INFO struStreamInfo; 
+            public uint lRecordType;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //�˿�ӳ�����ýṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_NAT_PORT
+        {
+            public ushort wEnable;
+            public ushort wExtPort;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 12, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //�˿�ӳ�����ýṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_NAT_CFG
+        {
+            public uint dwSize;
+            public ushort wEnableUpnp;
+            public ushort wEnableNat;
+            public NET_DVR_IPADDR struIpAddr;//��ʱ��ֹͣʱ��
+            public NET_DVR_NAT_PORT struHttpPort;//��ʱ��ֹͣʱ��
+            public NET_DVR_NAT_PORT struCmdPort;//��ʱ��ֹͣʱ��
+            public NET_DVR_NAT_PORT struRtspPort;//��ʱ��ֹͣʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byFriendName;
+            public byte byNatType;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_DVR_NAT_PORT struHttpsPort;//��ʱ��ֹͣʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 76, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //Upnp�˿�ӳ��״̬�ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_UPNP_PORT_STATE
+        {
+            public uint dwEnabled;//�ö˿��Ƿ�ʹ��ӳ��
+            public ushort wInternalPort;//ӳ��ǰ�Ķ˿�
+            public ushort wExternalPort;//ӳ���Ķ˿�
+            public uint dwStatus;//�˿�ӳ��״̬��0- δ��Ч��1- δ��Ч��ӳ��Դ�˿���Ŀ�Ķ˿���һ�£�2- δ��Ч��ӳ��˿ں��ѱ�ʹ�ã�3- ��Ч
+            public NET_DVR_IPADDR struNatExternalIp;//ӳ�����ⲿ��ַ
+            public NET_DVR_IPADDR struNatInternalIp;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;//����
+        }
+
+        //Upnp�˿�ӳ��״̬�ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_UPNP_NAT_STATE
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 12, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_UPNP_PORT_STATE[] strUpnpPort;//�˿�ӳ��״̬:������0- web server�˿ڣ�����1- �����˿ڣ�����2- rtsp��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 200, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;//����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PLAYCOND
+        {
+            public uint dwChannel;
+            public NET_DVR_TIME struStartTime;
+            public NET_DVR_TIME struStopTime;
+            public byte byDrawFrame;  //0:����֡��1����֡
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 63, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;    //����
+        }
+
+        //¼��طŽṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VOD_PARA
+        {
+            public uint dwSize; //�ṹ���С
+            public NET_DVR_STREAM_INFO struIDInfo; //��ID��Ϣ
+            public NET_DVR_TIME struBeginTime;//�طſ�ʼʱ��
+            public NET_DVR_TIME struEndTime;//�طŽ���ʱ��
+            public IntPtr hWnd;//�طŴ���
+            public byte byDrawFrame;//�Ƿ��֡��0- ����֡��1- ��֡
+            public byte byVolumeType;//0-��ͨ¼�����1-�浵����������CVR�豸����ͨ������ͨ��¼�񣬴浵�����ڱ���¼��
+            public byte byVolumeNum;//�浵���� 
+            public byte byRes1;//����
+            public uint dwFileIndex;//�浵���ϵ�¼���ļ������������浵��¼��ʱ���ص�ֵ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 24, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;    //����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ATMFINDINFO
+        {
+            public byte byTransactionType;       //�������� 0-ȫ����1-��ѯ�� 2-ȡ� 3-�� 4-�޸����룬5-ת�ˣ� 6-�޿���ѯ 7-�޿��� 8-�̳� 9-�̿� 10-�Զ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;    //����
+            public uint dwTransationAmount ;     //���׽�� ;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Explicit)]
+        public struct NET_DVR_SPECIAL_FINDINFO_UNION
+        {
+            [FieldOffsetAttribute(0)]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byLenth ;
+           /* [FieldOffsetAttribute(0)]
+            public NET_DVR_ATMFINDINFO struATMFindInfo;	       //ATM��ѯ
+            * */
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FILECOND_V40
+        {
+            public Int32 lChannel;
+            public uint dwFileType;
+            public uint dwIsLocked;
+            public uint dwUseCardNo;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = CARDNUM_LEN_OUT, ArraySubType = UnmanagedType.I1)]
+            public byte[] sCardNumber;
+            public NET_DVR_TIME struStartTime;
+            public NET_DVR_TIME struStopTime;
+            public byte byDrawFrame; //0:����֡��1����֡
+            public byte byFindType; //0:��ѯ��ͨ����1����ѯ�浵��
+            public byte byQuickSearch; //0:��ͨ��ѯ��1�����٣���������ѯ
+            public byte bySpecialFindInfoType ;    //ר�в�ѯ�������� 0-��Ч�� 1-��ATM��ѯ����  
+            public uint dwVolumeNum;  //�浵����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = GUID_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byWorkingDeviceGUID;    //������GUID��ͨ����ȡN+1�õ�
+            public NET_DVR_SPECIAL_FINDINFO_UNION uSpecialFindInfo ;   //ר�в�ѯ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;    //����
+        }
+
+        //�¼���������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SEARCH_EVENT_PARAM_V40
+        {
+            public ushort wMajorType;            //0-�ƶ���⣬1-��������, 2-�����¼� 5-pos¼�� 7-�Ž��¼�
+            public ushort wMinorType;            //����������- ���������ͱ仯��0xffff��ʾȫ��
+            public NET_DVR_TIME struStartTime;    //�����Ŀ�ʼʱ�䣬ֹͣʱ��: ͬʱΪ(0, 0) ��ʾ�������ʱ�俪ʼ���������ǰ���4000���¼�
+            public NET_DVR_TIME struEndTime;    //
+            public byte byLockType;        // 0xff-ȫ����0-δ����1-����
+            public byte byQuickSearch;        // �Ƿ����ÿ��ٲ�ѯ��0-�����ã�1-���ã����ٲ�ѯ���᷵���ļ���С�������豸���ݿ���в�ѯ������Ƶ������Ӳ�̣�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 130, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;// ����
+            public UNION_EVENT_PARAM uSeniorParam;
+
+            public void Init()
+            {
+                byRes = new byte[130];
+                uSeniorParam.Init();
+            }
+        }
+
+        public const int SEARCH_EVENT_INFO_LEN_V40 = 800; 
+
+        [StructLayout(LayoutKind.Explicit)]
+        public struct UNION_EVENT_PARAM
+        {
+            [FieldOffset(0)]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = SEARCH_EVENT_INFO_LEN_V40, ArraySubType = UnmanagedType.I1)]
+            public byte[] byLen;
+            public void Init()
+            {
+                byLen = new byte[SEARCH_EVENT_INFO_LEN_V40];
+            }
+         }
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct struMotionParam
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.U2)]
+            public ushort[] wMotDetChanNo;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 672, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public void Init()
+            {
+                wMotDetChanNo = new ushort[MAX_CHANNUM_V30];
+                byRes = new byte[672];
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct struStreamIDParam
+        {
+            public NET_DVR_STREAM_INFO struIDInfo;
+            public uint dwCmdType;
+            public byte byBackupVolumeNum;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byArchiveLabel;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 656, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public void Init()
+            {
+                byRes1 = new byte[3];
+                byArchiveLabel = new byte[64];
+                byRes = new byte[656];
+                struIDInfo.Init();
+            }
+        }
+
+        //���ҷ��ؽ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SEARCH_EVENT_RET_V40
+        {
+            public ushort wMajorType;            //������
+            public ushort wMinorType;            //������
+            public NET_DVR_TIME struStartTime;    //�¼���ʼ��ʱ��
+            public NET_DVR_TIME struEndTime;   //�¼�ֹͣ��ʱ�䣬�����¼�ʱ�Ϳ�ʼʱ��һ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V40, ArraySubType = UnmanagedType.U2)]
+            public ushort[] wChan;    //������ͨ���ţ�0xffff��ʾ������Ч
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 36, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public UNION_EVENT_RET uSeniorRet;
+        }
+
+        [StructLayout(LayoutKind.Explicit)]
+        public struct UNION_EVENT_RET
+        {
+            [FieldOffset(0)]
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 800, ArraySubType = UnmanagedType.I1)]
+            public byte[] byLen;                 
+         }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct struMotionRet
+        {
+            public uint dwMotDetNo;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 796, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        public const int NET_SDK_MAX_TAPE_INDEX_LEN = 32; //�Ŵ������󳤶�
+        public const int NET_SDK_MAX_FILE_LEN = 256;      //�ļ�����󳤶�
+
+        //��id¼���ѯ���
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct struStreamIDRet
+        {
+            public uint dwRecordType;    //¼������ 0-��ʱ¼�� 1-�ƶ���� 2-����¼�� 3-����|�ƶ���� 4-����&�ƶ���� 5-����� 6-�ֶ�¼�� 7-�𶯱��� 8-�������� 9-���ܱ��� 10-�ش�¼��
+            public uint dwRecordLength;    //¼���С
+            public byte byLockFlag;    // ������־ 0��û���� 1������
+            public byte byDrawFrameType;    // 0���dz�֡¼�� 1����֡¼��
+            public byte byPosition;// �ļ����ڴ洢λ�ã�0-�����ϣ�1-�����λ�ϣ�����ֱ�����أ�2-�Ŵ����ڣ���Ҫ�Ѵ����л�����λ�ϣ�3-���ڴŴ����У���Ҫ�Ѵ��̲嵽�Ŵ�����
+            public byte byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byFileName;     //�ļ���
+            public uint dwFileIndex;            // �浵���ϵ��ļ�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NET_SDK_MAX_TAPE_INDEX_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byTapeIndex;  //�ļ����ڴŴ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NET_SDK_MAX_FILE_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byFileNameEx; //�ļ�����չ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 464, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_AES_KEY_INFO
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] sAESKey;  /*����������Կ*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;  /*�����ֽ�*/
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_POE_CFG
+        {
+            public NET_DVR_IPADDR struIP;     //IP��ַ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; //����
+        }
+
+        public const int MAX_PRO_PATH = 256; //���Э��·������
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CUSTOM_PROTOCAL
+        {
+            public uint dwSize;              //�ṹ���С
+            public uint dwEnabled;           //�Ƿ����ø�Э��0 ������ 1 ����
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = DESC_LEN)]
+            public string sProtocalName;   //�Զ���Э������, 16λ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;          //����,����Э��������չ
+            public uint dwEnableSubStream;   //�������Ƿ�����0 ������ 1 ����	
+            public byte byMainProType;        //������������ 1 RTSP
+            public byte byMainTransType;		//�������������� 0��Auto 1��udp 2��rtp over rtsp
+            public ushort wMainPort;           //�������˿�	
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = MAX_PRO_PATH)]
+            public string sMainPath;  //������·��	
+            public byte bySubProType;         //������������ 1 RTSP
+            public byte bySubTransType;		//�������������� 0��Auto 1��udp 2��rtp over rtsp
+            public ushort wSubPort;   //�������˿�
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = MAX_PRO_PATH)]
+            public string sSubPath;   //������·�� 	
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 200, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;          //����
+        }
+     
+        //Ԥ��V40�ӿ�
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PREVIEWINFO
+        {
+            public Int32 lChannel;//ͨ����
+            public uint dwStreamType;	// �������ͣ�0-��������1-��������2-����3��3-����4 ���Դ�����
+            public uint dwLinkMode;// 0��TCP��ʽ,1��UDP��ʽ,2���ಥ��ʽ,3 - RTP��ʽ��4-RTP/RTSP,5-RSTP/HTTP 
+            public IntPtr hPlayWnd;//���Ŵ��ڵľ��,ΪNULL��ʾ������ͼ��
+            public bool bBlocked;  //0-������ȡ��, 1-����ȡ��, �������SDK�ڲ�connectʧ�ܽ�����5s�ij�ʱ���ܹ�����,���ʺ�����ѯȡ������.
+            public bool bPassbackRecord; //0-������¼��ش�,1����¼��ش�
+            public byte byPreviewMode;//Ԥ��ģʽ��0-����Ԥ����1-�ӳ�Ԥ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = STREAM_ID_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byStreamID;//��ID��lChannelΪ0xffffffffʱ���ô˲���
+            public byte byProtoType; //Ӧ�ò�ȡ��Э�飬0-˽��Э�飬1-RTSPЭ��
+            public byte byRes1;
+            public byte byVideoCodingType; //�������ݱ�������� 0-ͨ�ñ������� 1-�ȳ���̽����������ԭʼ���ݣ��¶����ݵļ�����Ϣ��ͨ��ȥ�������㣬��ԭʼ���������ʵ���¶�ֵ��
+            public uint dwDisplayBufNum; //���ſⲥ�Ż�������󻺳�֡������Χ1-50����0ʱĬ��Ϊ1 
+            public byte byNPQMode;	//NPQ��ֱ��ģʽ�����ǹ���ý�� 0-ֱ�� 1-����ý��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 215, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        ///ץ�Ļ�
+        ///
+        public const int MAX_OVERLAP_ITEM_NUM = 50;       //����ַ���������
+        public const int NET_ITS_GET_OVERLAP_CFG = 5072;//��ȡ�ַ����Ӳ������ã������ITS�նˣ�
+        public const int NET_ITS_SET_OVERLAP_CFG = 5073;//�����ַ����Ӳ������ã������ITS�նˣ�
+        public const int NET_ITS_SET_LAMP_EXTERNAL_CFG = 5095;  //�����������
+
+        //�ַ������������������ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_ITS_OVERLAPCFG_COND
+        {
+            public uint dwSize;
+            public uint dwChannel;//ͨ���� 
+            public uint dwConfigMode;//����ģʽ��0- �նˣ�1- ǰ��(ֱ��ǰ�˻��ն˽�ǰ��)
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;//����
+        }
+
+        //�����ַ�������Ϣ�ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_ITS_OVERLAP_SINGLE_ITEM_PARAM
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;//����
+            public byte byItemType;//����
+            public byte byChangeLineNum;//�������Ļ�������ȡֵ��Χ��[0,10]��Ĭ�ϣ�0 
+            public byte bySpaceNum;//�������Ŀո�����ȡֵ��Χ��[0-255]��Ĭ�ϣ�0
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 15, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;//����
+        }
+
+        //�ַ����������ýṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_ITS_OVERLAP_ITEM_PARAM
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_OVERLAP_ITEM_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_ITS_OVERLAP_SINGLE_ITEM_PARAM[] struSingleItem;//�ַ���������Ϣ
+            public uint dwLinePercent;
+            public uint dwItemsStlye;
+            public ushort wStartPosTop;
+            public ushort wStartPosLeft;
+            public ushort wCharStyle;
+            public ushort wCharSize;
+            public ushort wCharInterval;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;//����
+            public uint dwForeClorRGB;//ǰ��ɫ��RGBֵ��bit0~bit7: B��bit8~bit15: G��bit16~bit23: R��Ĭ�ϣ�x00FFFFFF-��
+            public uint dwBackClorRGB;//����ɫ��RGBֵ��ֻ��ͼƬ�������Ч��bit0~bit7: B��bit8~bit15: G��bit16~bit23: R��Ĭ�ϣ�x00000000-�� 
+            public byte byColorAdapt;//��ɫ�Ƿ�����Ӧ��0-��1-��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 31, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;//����
+        }
+
+        //�ַ�����������Ϣ�ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_ITS_OVERLAP_INFO_PARAM
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128, ArraySubType = UnmanagedType.I1)]
+            public byte[] bySite;//
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRoadNum;//
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byInstrumentNum;//
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDirection;//
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDirectionDesc;//
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byLaneDes;//
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;//���ﱣ����Ƶ��ѹ������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 44, ArraySubType = UnmanagedType.I1)]
+            public byte[] byMonitoringSite1;//
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byMonitoringSite2;//���ﱣ����Ƶ��ѹ������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;//���ﱣ����Ƶ��ѹ������ 
+        }
+
+        //�ַ������������������ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_ITS_OVERLAP_CFG
+        {
+            public uint dwSize;
+            public byte byEnable;//�Ƿ����ã�0- �����ã�1- ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;//���ﱣ����Ƶ��ѹ������
+            public NET_ITS_OVERLAP_ITEM_PARAM struOverLapItem;//�ַ�������
+            public NET_ITS_OVERLAP_INFO_PARAM struOverLapInfo;//�ַ���������Ϣ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;//���ﱣ����Ƶ��ѹ������ 
+        }
+
+        //�������������ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SETUPALARM_PARAM
+        {
+            public uint dwSize;
+            public byte byLevel;//�������ȼ���0- һ�ȼ����ߣ���1- ���ȼ����У���2- ���ȼ����ͣ�������
+            public byte byAlarmInfoType;//�ϴ�������Ϣ���ͣ����ܽ�ͨ�����֧�֣���0- �ϱ�����Ϣ��NET_DVR_PLATE_RESULT����1- �±�����Ϣ(NET_ITS_PLATE_RESULT) 
+            public byte byRetAlarmTypeV40;
+            public byte byRetDevInfoVersion;
+            public byte byRetVQDAlarmType;
+            public byte byFaceAlarmDetection;
+            public byte bySupport;
+            public byte byBrokenNetHttp;
+            public ushort wTaskNo;
+            public byte byDeployType;    //�������ͣ�0-�ͻ��˲�����1-ʵʱ����
+            public byte bySubScription;	//���ģ���λ��ʾ��δ�������IJ��ϱ�  //ռλ //Bit7-�ƶ�����˳������Ƿ�ͼ��0-����ͼ(V30�ϱ�)��1-��ͼ(V40�ϱ�)
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public byte byAlarmTypeURL;
+            //bit0-��ʾ����ץ�ı����ϴ���INTER_FACESNAP_RESULT����0-��ʾ�����ƴ��䣬1-��ʾURL���䣨�豸֧�ֵ�����£��豸֧���������ݾ��屨���������ж�,ͬʱ�豸��Ҫ֧��URL����ط��񣬵�ǰ�ǡ��ƴ洢����
+            //bit1-��ʾEVENT_JSON��ͼƬ���ݳ������ͣ�0-��ʾ�����ƴ��䣬1-��ʾURL���䣨�豸֧�ֵ�����£��豸֧���������ݾ��屨���������жϣ�
+            //bit2 - �����ȶ�(��������ΪCOMM_SNAP_MATCH_ALARM)��ͼƬ�����ϴ����ͣ�0 - �����ƴ��䣬1 - URL����
+            //bit3 - �쳣��Ϊʶ��(��������ΪCOMM_ALARM_RULE)��ͼƬ�����ϴ����ͣ�0 - �����ƴ��䣬1 - URL���䣬���ֶ��豸�Ƿ�֧�֣���Ӧ��Ӳ����������<isSupportBehaviorUploadByCloudStorageURL>�ڵ��Ƿ񷵻���Ϊtrue
+            public byte byCustomCtrl;//Bit0- ��ʾ֧�ָ���ʻ������ͼ�ϴ�: 0-���ϴ�,1-�ϴ�
+        }
+
+        //��բ���Ʋ���
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_BARRIERGATE_CFG
+        {
+            public uint dwSize;
+            public uint dwChannel;//ͨ����
+            public byte byLaneNo; //��բ�ţ�0-��ʾ��Чֵ(�豸��Ҫ����Чֵ�ж�),1-��բ1��
+            public byte byBarrierGateCtrl;//0-�رյ�բ,1-������բ,2-ֹͣ��բ 3-������բ,4~������բ
+            public byte byEntranceNo;//����ڱ�� [1,8]
+            public byte byUnlock;//���ý���ʹ�ܣ�0~Ϊ�����ã�1~����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 12, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        public const int MAX_RELAY_NUM = 12;
+        public const int MAX_IOIN_NUM = 8;
+        public const int MAX_VEHICLE_TYPE_NUM = 8;
+
+        public const int NET_DVR_GET_ENTRANCE_PARAMCFG = 3126; //��ȡ����ڿ��Ʋ���
+        public const int NET_DVR_SET_ENTRANCE_PARAMCFG = 3127; //���ó���ڿ��Ʋ���
+
+        //����ڿ�������
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_BARRIERGATE_COND
+        {
+            public byte byLaneNo;//�����ţ�0- ��ʾ��Чֵ(�豸��Ҫ����Чֵ�ж�)��1- ����1
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //�̵�����������
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_RELAY_PARAM
+        {
+            public byte byAccessDevInfo;//0-�������豸��1-����բ��2-�ص�բ��3-ͣ��բ��4-�����źš�5-������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //������Ϣ�ܿز���
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_DVR_VEHICLE_CONTROL
+        {
+            public byte byGateOperateType;//�������ͣ�0- �޲�����1- ����բ
+            public byte byRes1;
+            public ushort wAlarmOperateType; //�����������ͣ�0- �޲�����bit0- �̵������������bit1- �����ϴ�������bit3- �澯�����ϴ���ֵ��0-��ʾ�أ�1-��ʾ�����ɸ�ѡ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        //����ڿ��Ʋ���
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ENTRANCE_CFG
+        {
+            public uint dwSize;
+            public byte byEnable;
+            public byte byBarrierGateCtrlMode;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;//����
+            public uint dwRelateTriggerMode;
+            public uint dwMatchContent;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_RELAY_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_RELAY_PARAM[] struRelayRelateInfo;//�̵�������������Ϣ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_IOIN_NUM, ArraySubType = UnmanagedType.I1)]
+            public byte[] byGateSingleIO;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_VEHICLE_TYPE_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_VEHICLE_CONTROL[] struVehicleCtrl;//������Ϣ�ܿ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;//����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_ITS_GATE_VEHICLE
+        {
+            public uint dwSize;
+            public uint dwMatchNo;
+            public byte byGroupNum;
+            public byte byPicNo;
+            public byte bySecondCam;
+
+            public byte byRes;
+            public ushort wLaneid;
+            public byte byCamLaneId;
+            public byte byRes1;
+
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 32)]
+            public byte[] byAlarmReason;
+
+            public ushort wBackList;
+            public ushort wSpeedLimit;
+            public uint dwChanIndex;
+
+
+            public NET_DVR_PLATE_INFO struPlateInfo;
+
+            public NET_DVR_VEHICLE_INFO struVehicleInfo;
+
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 48)]
+            public byte[] byMonitoringSiteID;
+
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 48)]
+            public byte[] byDeviceID;
+
+
+            public byte byDir;
+            public byte byDetectType;
+
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)]
+            public byte[] byRes2;
+
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 48)]
+            public byte[] byCardNo;
+
+            public uint dwPicNum;
+
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.Struct)]
+            public NET_ITS_PICTURE_INFO[] struPicInfo;
+
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 32)]
+            public byte[] bySwipeTime;
+
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 224)]
+            public byte[] byRes3;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_ITS_PICTURE_INFO
+        {
+            public uint dwDataLen;
+            public byte byType;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 3)]
+            public byte[] byRes1;
+            public uint dwRedLightTime;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 32)]
+            public byte[] byAbsTime;
+            public NET_VCA_RECT struPlateRect;
+            public NET_VCA_RECT struPlateRecgRect;
+            public IntPtr pBuffer;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 12)]
+            public byte[] byRes2;
+        }  
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_ITS_PLATE_RESULT
+        {
+            public uint dwSize;        //�ṹ����
+            public uint dwMatchNo;        //ƥ�����,��(�������,��������,������)���ƥ����
+            public byte byGroupNum;    //ͼƬ��������һ������������ץ�ĵ�����������һ��ͼƬ��������������ʱƥ�����ݣ�
+            public byte byPicNo;        //���ĵ�ͼƬ��ţ����յ�ͼƬ�������󣬱�ʾ�������;���ճ�ʱ����ͼƬ������ʱ��������Ҫ������ɾ����
+            public byte bySecondCam;    //�Ƿ�ڶ����ץ�ģ���Զ����ץ�ĵ�Զ���������ǰ��ץ�ĵĺ������������Ŀ�л��õ���
+            public byte byFeaturePicNo; //����Ƶ羯��ȡ�ڼ���ͼ��Ϊ��дͼ,0xff-��ʾ��ȡ
+            public byte byDriveChan;        //����������
+            public byte byVehicleType;     //�������ͣ��ο�VTR_RESULT
+            public byte byDetSceneID;//��ⳡ����[1,4], IPCĬ����0
+            //�������ԣ���λ��ʾ��0- �޸�������(��ͨ��)��bit1- �Ʊ공(�������ı�־)��bit2- Σ��Ʒ������ֵ��0- ��1- ��
+            //�ýڵ��Ѳ���ʹ��,ʹ�������byYellowLabelCar��byDangerousVehicles�ж��Ƿ�Ʊ공��Σ��Ʒ��
+            public byte byVehicleAttribute;
+            public ushort wIllegalType;       //Υ�����Ͳ��ù��궨��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byIllegalSubType;   //��������
+            public byte byPostPicNo;    //Υ��ʱȡ�ڼ���ͼƬ��Ϊ����ͼ,0xff-��ʾ��ȡ
+            //ͨ����(��Ч������ͨ���ź������豸�ϴ�����ͨ����һ�£��ں�˺�������� ͨ����һ��)
+            public byte byChanIndex;
+            public ushort wSpeedLimit;        //�������ޣ�����ʱ��Ч��
+            public byte byChanIndexEx;      //byChanIndexEx*256+byChanIndex��ʾ��ʵͨ���š�
+            public byte byRes2;
+            public NET_DVR_PLATE_INFO struPlateInfo;     //������Ϣ�ṹ
+            public NET_DVR_VEHICLE_INFO struVehicleInfo;    //������Ϣ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 48, ArraySubType = UnmanagedType.I1)]
+            public byte[] byMonitoringSiteID;        //��ʾ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 48, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDeviceID;                //�豸���
+            public byte byDir;            //��ʾ����1-���У����򣩣�2-����(����)��3-˫��4-�ɶ�������5-������,6-�����򶫣�7-�ɱ����ϣ�8-����
+            public byte byDetectType;    //��ⷽʽ,1-�ظд�����2-��Ƶ������3-��֡ʶ��4-�״ﴥ��
+            //���������������ͣ��ο�ITC_RELA_LANE_DIRECTION_TYPE
+            //�ò���Ϊ�����������������������Ŷ�Ӧ��ȷ������Ψһ�ԡ�
+            public byte byRelaLaneDirectionType;
+            public byte byCarDirectionType; //����������ʻ�ķ���0��ʾ�������£�1��ʾ�������ϣ�����ʵ�ʳ�������ʻ�����������֣�
+            //��wIllegalType����Ϊ��ʱ��ʹ�øò�������wIllegalType����Ϊ��ֵʱ����wIllegalType����Ϊ׼���ò�����Ч��
+            public uint dwCustomIllegalType; //Υ�����Ͷ���(�û��Զ���)
+            /*Ϊ0~���ָ�ʽʱ��Ϊ�ϵ�Υ�����ͣ�wIllegalType��dwCustomIllegalType������Ч����ֵ����Υ�����롣
+             * Ϊ1~�ַ���ʽʱ��pIllegalInfoBuf������Ч���ϵ�Υ�����ͣ�wIllegalType��dwCustomIllegalType������Ȼ��ֵ����Υ������*/
+            public IntPtr pIllegalInfoBuf;    //Υ�������ַ���Ϣ�ṹ��ָ�룻ָ��NET_ITS_ILLEGAL_INFO 
+            public byte byIllegalFromatType; //Υ����Ϣ��ʽ���ͣ� 0~���ָ�ʽ�� 1~�ַ���ʽ
+            public byte byPendant;// 0-��ʾδ֪,1-�����������2-������������
+            public byte byDataAnalysis;            //0-����δ����, 1-�����ѷ���
+            public byte byYellowLabelCar;        //0-��ʾδ֪, 1-�ǻƱ공,2-�Ʊ공
+            public byte byDangerousVehicles;    //0-��ʾδ֪, 1-��Σ��Ʒ��,2-Σ��Ʒ��
+            //�����ֶΰ���Pilot�ַ���Ϊ����ʻ����Copilot�ַ���Ϊ����ʻ
+            public byte byPilotSafebelt;//0-��ʾδ֪,1-ϵ��ȫ��,2-��ϵ��ȫ��
+            public byte byCopilotSafebelt;//0-��ʾδ֪,1-ϵ��ȫ��,2-��ϵ��ȫ��
+            public byte byPilotSunVisor;//0-��ʾδ֪,1-����������,2-��������
+            public byte byCopilotSunVisor;//0-��ʾδ֪, 1-����������,2-��������
+            public byte byPilotCall;// 0-��ʾδ֪, 1-����绰,2-��绰
+			//0-��բ��1-δ��բ (ר������ʷ�����������������ƥ����Ƿ�բ�ɹ��ı�־)����byAlarmDataTypeΪ0-ʵʱ����ʱ 0-δ��բ 1-��բ
+            public byte byBarrierGateCtrlType;
+            public byte byAlarmDataType;//0-ʵʱ���ݣ�1-��ʷ����
+            public NET_DVR_TIME_V30 struSnapFirstPicTime;//�˵�ʱ��(ms)��ץ�ĵ�һ��ͼƬ��ʱ�䣩
+            public uint dwIllegalTime;//Υ������ʱ�䣨ms�� = ץ�����һ��ͼƬ��ʱ�� - ץ�ĵ�һ��ͼƬ��ʱ��
+            public uint dwPicNum;        //ͼƬ��������picGroupNum��ͬ������������Ϣ������ͼƬ������ͼƬ��Ϣ��struVehicleInfoEx����    
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 6, ArraySubType = UnmanagedType.Struct)]
+            public NET_ITS_PICTURE_INFO[] struPicInfo;         //ͼƬ��Ϣ,���Żص������6��ͼ�����������
+        }     
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_ITS_PARK_VEHICLE
+        {
+            public uint dwSize;
+            public byte byGroupNum;      
+            public byte byPicNo;      
+            public byte byLocationNum;    
+            public byte byParkError;    
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = MAX_PARKNO_LEN)]
+            public string byParkingNo;    
+            public byte byLocationStatus;    
+            public byte bylogicalLaneNum;    
+            public ushort wUpLoadType;     
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;        
+            public uint dwChanIndex;  
+            public NET_DVR_PLATE_INFO      struPlateInfo;
+            public NET_DVR_VEHICLE_INFO    struVehicleInfo;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ID_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byMonitoringSiteID;  
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ID_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDeviceID;  
+            public uint dwPicNum;  
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.Struct)]
+            public NET_ITS_PICTURE_INFO[] struPicInfo;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 256, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;     
+        }
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct UNION_GATE_INFO
+        {
+            public UNION_GATE_VEHICLE struVehicleInfo; //��struAlarmTypeΪ(0x1�����Ƿ����뱨��)
+        }
+        
+         [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct UNION_GATE_VEHICLE
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_LICENSE_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sLicense;//���ƺ���
+            /*��������0-���� 1-�̶�����2-��ʱ����3-Ԥ������4-���쳵��5-��Ȩ��*/
+            public byte byVehicleType;
+             [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 111, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+        }
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_GATE_ALARMINFO
+        {
+            public uint dwSize;
+    	//0x1�����Ƿ����뱨��
+    	//0x2��բ��ʱδ�ر���
+    	//0x3����ѹ��Ȧ��ʱ����
+    	//0x4�����������޿���
+    	//0x5�����������ٿ���
+    	//0x6���������������쳣��
+            public byte byAlarmType;
+            public byte byExternalDevType;//����豸����(EXTERNAL_DEVICES_TYPE)
+            public byte byExternalDevStatus;//����豸����(EXTERNAL_DEVICES_STATUS)
+            public byte byRes;
+            public NET_DVR_TIME_V30 struAlarmTime;//����ʱ��
+            public UNION_GATE_INFO uAlarmInfo;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2; //Ԥ��
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DIAGNOSIS_UPLOAD
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = STREAM_ID_LEN)]
+            public string sStreamID;	///< ��ID������С��32���ֽ�
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 64)]
+            public string sMonitorIP;  ///< ������ip
+            public uint dwChanIndex;  ///< ������ͨ����  
+            public uint dwWidth;  ///< ͼ�����
+            public uint dwHeight;  ///< ͼ��߶�
+            public NET_DVR_TIME struCheckTime;  ///< ���ʱ��(�ϲ����ں�ʱ���ֶ�)����ʽ��2012-08-06 13:00:00
+            public byte byResult;  ///0-δ��� 1-���� 2-�쳣 3-��¼ʧ�� 4-ȡ���쳣
+            public byte bySignalResult; ///< ��Ƶ��ʧ����� 0-δ��� 1-���� 2-�쳣
+            public byte byBlurResult;  ///< ͼ��ģ���������0-δ��� 1-���� 2-�쳣
+            public byte byLumaResult;  ///< ͼ������������0-δ��� 1-���� 2-�쳣
+            public byte byChromaResult;  ///< ƫɫ�������0-δ��� 1-���� 2-�쳣
+            public byte bySnowResult;  ///< �������ż������0-δ��� 1-���� 2-�쳣
+            public byte byStreakResult;  ///< ���Ƹ��ż������0-δ��� 1-���� 2-�쳣
+            public byte byFreezeResult;  ///< ���涳��������0-δ��� 1-���� 2-�쳣
+            public byte byPTZResult;  ///< ��̨�������0-δ��� 1-���� 2-�쳣
+            public byte byContrastResult;     //�Աȶ��쳣�������0-δ��⣬1-������2-�쳣
+            public byte byMonoResult;         //�ڰ�ͼ��������0-δ��⣬1-������2-�쳣
+            public byte byShakeResult;        //��Ƶ�����������0-δ��⣬1-������2-�쳣
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 256)]
+            public string sSNapShotURL;	///<ͼƬURL��ַ
+            public byte byFlashResult;        //��Ƶ���������0-δ��⣬1-������2-�쳣
+            public byte byCoverResult;        //��Ƶ�ڵ��������0-δ��⣬1-������2-�쳣
+            public byte bySceneResult;        //��������������0-δ��⣬1-������2-�쳣
+            public byte byDarkResult;         //ͼ������������0-δ��⣬1-������2-�쳣
+            public byte byStreamType;		//�������ͣ�0-��Ч��1-δ֪��2-�������ͣ�3-�ǹ�������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 59, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        public const int CID_CODE_LEN = 4;
+        public const int ACCOUNTNUM_LEN = 6;
+        public const int ACCOUNTNUM_LEN_32 = 32;
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CID_ALARM
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = CID_CODE_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sCIDCode;    //CID�¼���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sCIDDescribe;    //CID�¼���
+            public NET_DVR_TIME_EX struTriggerTime;            //����������ʱ���
+            public NET_DVR_TIME_EX struUploadTime;                //�ϴ�������ʱ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = ACCOUNTNUM_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sCenterAccount;    //�����ʺ�
+            public byte byReportType;                    //������NET_DVR_ALARMHOST_REPORT_TYPE
+            public byte byUserType;                        //�û����ͣ�0-�����û� 1-�����û�,2-�ֻ��û�,3-ϵͳ�û�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUserName;        //�����û��û���
+            public ushort wKeyUserNo;                        //�����û���    0xFFFF��ʾ��Ч
+            public byte byKeypadNo;                        //���̺�        0xFF��ʾ��Ч
+            public byte bySubSysNo;                        //��ϵͳ��        0xFF��ʾ��Ч
+            public ushort wDefenceNo;                        //������        0xFFFF��ʾ��Ч
+            public byte byVideoChanNo;                    //��Ƶͨ����    0xFF��ʾ��Ч
+            public byte byDiskNo;                        //Ӳ�̺�        0xFF��ʾ��Ч
+            public ushort wModuleAddr;                    //ģ���ַ        0xFFFF��ʾ��Ч
+            public byte byCenterType;                    //0-��Ч, 1-�����˺�(����6),2-��չ�������˺�(����9)
+            public byte byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = ACCOUNTNUM_LEN_32, ArraySubType = UnmanagedType.I1)]
+            public byte[] sCenterAccountV40;    //�����˺�V40,ʹ�ô��ֶ�ʱsCenterAccount��Ч
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 28, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_PTZ_INFO
+        {
+            public float fPan;
+            public float fTilt;
+            public float fZoom;
+            public uint dwFocus;// �۽��������۽���Χ����һ��0-100000
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //����ⱨ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FIREDETECTION_ALARM
+        {
+            public uint dwSize; //�ṹ��С
+            public uint dwRelativeTime; //���ʱ��
+            public uint dwAbsTime; //����ʱ��
+            public NET_VCA_DEV_INFO struDevInfo;   //ǰ���豸��Ϣ
+            public ushort wPanPos;
+            public ushort wTiltPos;
+            public ushort wZoomPos;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public uint dwPicDataLen;//����ץ��ͼƬ����
+            public IntPtr pBuffer;    //����ָ��
+            public NET_VCA_RECT struRect;//���� 
+            public NET_VCA_POINT struPoint;//����������¶ȵ�����
+            public ushort wFireMaxTemperature;//�������¶�[300��~4000��]
+            public ushort wTargetDistance;//Ŀ�����[100m ~ 10000m]
+            public byte byStrategyType;//�������ͣ�0~���ⱨ����1~Эͬ������2~��ϵͳ������3~ָ����㱨����4~ָ����������
+            public byte byAlarmSubType;//���������͡�0~����ⱨ����1~������ⱨ����2~�̻𱨾�
+            /*�Ƿ�����PTZ������չ��
+            0~�����ã�PTZ����ֵ��wPanPos��wTiltPos��wZoomPosΪ׼��
+            1~���ã�PTZ����ֵ��struPtzPosExΪ׼����������PTZ���践�ء�struPtzPosEx��ֵ��ת��ΪwPanPos��wTiltPos��wZoomPosֵ��
+            */
+            public byte byPTZPosExEnable;
+            public byte byRes2;
+            public NET_PTZ_INFO struPtzPosEx;// ptz������չ(֧�ָ߾���PTZֵ����ȷ��С�������λ)
+            public uint dwVisiblePicLen;//�ɼ���ͼƬ����
+            public IntPtr pVisiblePicBuf;    //�ɼ���ͼƬ����ָ��
+            // pSmokeBuf������byAlarmSubType����������Ϊ1��������ⱨ������2���̻𱨾���ʱ��Ч��
+            public IntPtr pSmokeBuf;    //������ⱨ������ָ�룬ָ��һ��NET_DVR_SMOKEDETECTION_ALARM�ṹ��
+            public ushort wDevInfoIvmsChannelEx;     //��NET_VCA_DEV_INFO���byIvmsChannel������ͬ���ܱ�ʾ�����ֵ���Ͽͻ�����byIvmsChannel�ܼ������ݣ��������255���¿ͻ��˰汾��ʹ��wDevInfoIvmsChannelEx��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 58, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ACS_EVENT_INFO
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = ACS_CARD_NO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byCardNo; //���ţ�Ϊ0��Ч
+            public byte byCardType; //�����ͣ�1-��ͨ����3-��ֹ��������4-Ѳ������5-в�ȿ���6-��������7-��������Ϊ0��Ч
+            public byte byAllowListNo; //������������,1-8��Ϊ0��Ч
+            public byte byReportChannel; //�����ϴ�ͨ����1-�����ϴ���2-������1�ϴ���3-������2�ϴ���Ϊ0��Ч
+            public byte byCardReaderKind; //������������һ�࣬0-��Ч��1-IC��������2-����֤��������3-��ά�������,4-ָ��ͷ
+            public uint dwCardReaderNo; //��������ţ�Ϊ0��Ч
+            public uint dwDoorNo; //�ű��(¥����)��Ϊ0��Ч
+            public uint dwVerifyNo; //���ؿ���֤��ţ�Ϊ0��Ч
+            public uint dwAlarmInNo;  //��������ţ�Ϊ0��Ч
+            public uint dwAlarmOutNo; //��������ţ�Ϊ0��Ч
+            public uint dwCaseSensorNo; //�¼����������
+            public uint dwRs485No;    //RS485ͨ���ţ�Ϊ0��Ч
+            public uint dwMultiCardGroupNo; //Ⱥ����
+            public ushort wAccessChannel;    //��Աͨ����
+            public byte byDeviceNo;    //�豸��ţ�Ϊ0��Ч
+            public byte byDistractControlNo;//�ֿ�����ţ�Ϊ0��Ч
+            public uint dwEmployeeNo; //���ţ�Ϊ0��Ч
+            public ushort wLocalControllerID; //�͵ؿ�������ţ�0-�Ž�������1-64�����͵ؿ�����
+            public byte byInternetAccess; //����ID����1-��������1,2-��������2,3-��������1��
+            public byte byType;     //�������ͣ�0:��ʱ����,1-24Сʱ����,2-��ʱ���� ,3-�ڲ�������4-Կ�׷��� 5-�𾯷��� 6-�ܽ���� 7-24Сʱ��������  8-24Сʱ����������9-24Сʱ�𶯷���,10-�Ž��������ŷ�����11-�Ž��������ŷ��� 0xff-��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MACADDR_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byMACAddr; //������ַ��Ϊ0��Ч
+            public byte bySwipeCardType;//ˢ�����ͣ�0-��Ч��1-��ά��
+            public byte byMask;//�Ƿ�����֣�0-������1-δ֪��2-�������֣�3-������
+            public uint dwSerialNo; //�¼���ˮ�ţ�Ϊ0��Ч
+            public byte byChannelControllerID; //ͨ��������ID��Ϊ0��Ч��1-��ͨ����������2-��ͨ��������
+            public byte byChannelControllerLampID; //ͨ���������ư�ID��Ϊ0��Ч����Ч��Χ1-255��
+            public byte byChannelControllerIRAdaptorID; //ͨ������������ת�Ӱ�ID��Ϊ0��Ч����Ч��Χ1-255��
+            public byte byChannelControllerIREmitterID; //ͨ���������������ID��Ϊ0��Ч����Ч��Χ1-255��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ACS_EVENT_INFO_EXTEND
+        {
+            public int dwFrontSerialNo; //�¼���ˮ�ţ�Ϊ0��Ч�������ֶ�Ϊ0��ƽ̨����dwSerialNo�ж��Ƿ�ʧ�¼��������ֶβ�Ϊ0��ƽ̨���ݸ��ֶκ�dwSerialNo�ֶι�ͬ�ж��Ƿ�ʧ�¼�������Ҫ���ڽ���������ĺ���dwSerialNo�������������
+            public byte byUserType; //��Ա���ͣ�0-��Ч��1-��ͨ�ˣ����ˣ���2-�������ÿͣ���3-��ֹ�����ˣ�4-����Ա
+            public byte byCurrentVerifyMode; //��������ǰ��֤��ʽ��0-��Ч��1-���ߣ�2-ˢ��+���룬3-ˢ����4-ˢ�������룬5-ָ�ƣ�6-ָ��+���룬7-ָ�ƻ�ˢ����8-ָ��+ˢ����9-ָ��+ˢ��+���룬10-������ָ�ƻ�ˢ�������룬11-����+ָ�ƣ�12-����+���룬13-����+ˢ����14-������15-����+���룬16-ָ�ƻ����룬17-����+ָ�ƣ�18-����+ָ��+���룬19-����+ָ��+ˢ����20-����+����+ָ�ƣ�21-����+������22-����������+ˢ����23-ָ�ƻ�������24-ˢ�������������룬25-ˢ����������26-ˢ����������ָ�ƣ�27-ˢ����ָ�ƻ�����
+            public byte byCurrentEvent; //�Ƿ�Ϊʵʱ�¼���0-��Ч��1-�ǣ�ʵʱ�¼�����2-�������¼���
+            public byte byPurePwdVerifyEnable; //�豸�Ƿ�֧�ִ�������֤�� 0-��֧�֣�1-֧��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NET_SDK_EMPLOYEE_NO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byEmployeeNo; //���ţ���ԱID���������豸��˵�����ʹ���˹��ţ���ԱID���ֶΣ�byEmployeeNoһ��Ҫ���ݣ����byEmployeeNo��ת��ΪdwEmployeeNo����ô���ֶ�ҲҪ���ݣ������ϲ�ƽ̨��ͻ�����˵�����Ƚ���byEmployeeNo�ֶΣ�����ֶ�Ϊ�գ��ٿ��ǽ���dwEmployeeNo�ֶΣ�
+            public byte byAttendanceStatus; //����״̬��0-δ����,1-�ϰ࣬2-�°࣬3-��ʼ��Ϣ��4-������Ϣ��5-��ʼ�Ӱ࣬6-�����Ӱ�
+            public byte byStatusValue; //����״ֵ̬
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NET_SDK_UUID_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byUUID; //UUID�����ֶν��ڶԽ�өʯƽ̨�����вŻ�ʹ�ã�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NET_DEV_NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDeviceName;   //�豸���к�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 24, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //��չ�ṹ����ϢV20
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ACS_EVENT_INFO_EXTEND_V20
+        {
+            public byte byRemoteCheck; //�Ƿ���ҪԶ�̺��飨0-��Ч��1-����Ҫ��Ĭ�ϣ���2-��Ҫ��
+            public byte byThermometryUnit; //���µ�λ��0-���϶ȣ�Ĭ�ϣ���1-���϶ȣ�2-�����ģ�
+            public byte byIsAbnomalTemperature; //����ץ�IJ����Ƿ��¶��쳣��1-�ǣ�0-��
+            public byte byRes2;
+            public float fCurrTemperature; //�����¶ȣ���ȷ��С�����һλ��
+            public NET_VCA_POINT struRegionCoordinates; //�����¶�����
+            public ushort dwQRCodeInfoLen; //��ά����Ϣ���ȣ���Ϊ0�DZ�ʾ���������
+            public ushort dwVisibleLightDataLen; //�ȳ�������ɼ���ͼƬ���ȣ���Ϊ0�DZ�ʾ���������
+            public ushort dwThermalDataLen; //�ȳ���ͼƬ���ȣ���Ϊ0�DZ�ʾ���������
+            public IntPtr pQRCodeInfo; //��ά����Ϣָ��
+            public IntPtr pVisibleLightData; //�ȳ�������ɼ���ͼƬָ��
+            public IntPtr pThermalData; //�ȳ���ͼƬָ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAttendanceLabel; //�����Զ�������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 960, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ACS_ALARM_INFO
+        {
+            public uint dwSize;
+            public uint dwMajor; //���������ͣ��ο��궨��
+            public uint dwMinor; //���������ͣ��ο��궨��
+            public NET_DVR_TIME struTime; //ʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_NAMELEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sNetUser;//����������û���
+            public NET_DVR_IPADDR    struRemoteHostAddr ;//Զ��������ַ
+            public NET_DVR_ACS_EVENT_INFO struAcsEventInfo; //��ϸ����
+            public uint dwPicDataLen;   //ͼƬ���ݴ�С����Ϊ0�DZ�ʾ���������
+            public IntPtr pPicData;
+            public ushort wInductiveEventType; //�����¼����ͣ�0-��Ч���ͻ����жϸ�ֵΪ��0ֵ�󣬱�������ͨ�������¼��������֣�����ͨ��ԭ�б����������ͣ�dwMajor��dwMinor������
+            public byte byPicTransType;        //ͼƬ���ݴ��䷽ʽ: 0-�����ƣ�1-url
+            public byte byRes1;             //�����ֽ�
+            public uint dwIOTChannelNo;    //IOTͨ����
+            public IntPtr pAcsEventInfoExtend;    //byAcsEventInfoExtendΪ1ʱ����ʾָ��һ��NET_DVR_ACS_EVENT_INFO_EXTEND�ṹ��
+            public byte byAcsEventInfoExtend;    //pAcsEventInfoExtend�Ƿ���Ч��0-��Ч��1-��Ч
+            public byte byTimeType; //ʱ�����ͣ�0-�豸����ʱ�䣬1-UTCʱ�䣨struTime��ʱ�䣩
+            public byte byRes2;             //�����ֽ�
+            public byte byAcsEventInfoExtendV20;    //pAcsEventInfoExtendV20�Ƿ���Ч��0-��Ч��1-��Ч
+            public IntPtr pAcsEventInfoExtendV20;    //byAcsEventInfoExtendV20Ϊ1ʱ����ʾָ��һ��NET_DVR_ACS_EVENT_INFO_EXTEND_V20�ṹ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ACS_EVENT_DETAIL
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = ACS_CARD_NO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byCardNo; //���ţ�mac��ַ����Ϊ0��Ч
+            public byte byCardType; //�����ͣ�1-��ͨ����3-��ֹ��������4-Ѳ������5-в�ȿ���6-��������7-��������8-�������Ϊ0��Ч
+            public byte byAllowListNo; //������������,1-8��Ϊ0��Ч
+            public byte byReportChannel; //�����ϴ�ͨ����1-�����ϴ���2-������1�ϴ���3-������2�ϴ���Ϊ0��Ч
+            public byte byCardReaderKind; //������������һ�࣬0-��Ч��1-IC��������2-����֤��������3-��ά�������,4-ָ��ͷ
+            public uint dwCardReaderNo; //��������ţ�Ϊ0��Ч
+            public uint dwDoorNo; //�ű�ţ�¥���ţ���Ϊ0��Ч
+            public uint dwVerifyNo; //���ؿ���֤��ţ�Ϊ0��Ч
+            public uint dwAlarmInNo;  //��������ţ�Ϊ0��Ч
+            public uint dwAlarmOutNo; //��������ţ�Ϊ0��Ч
+            public uint dwCaseSensorNo; //�¼����������
+            public uint dwRs485No;    //RS485ͨ���ţ�Ϊ0��Ч
+            public uint dwMultiCardGroupNo; //Ⱥ����
+            public ushort wAccessChannel;    //��Աͨ����
+            public byte byDeviceNo; //�豸��ţ�Ϊ0��Ч����Ч��Χ1-255��
+            public byte byDistractControlNo;//�ֿ�����ţ�Ϊ0��Ч
+            public uint dwEmployeeNo; //���ţ�Ϊ0��Ч
+            public ushort wLocalControllerID; //�͵ؿ�������ţ�0-�Ž�������1-64�����͵ؿ�����
+            public byte byInternetAccess; //����ID����1-��������1,2-��������2,3-��������1��
+            public byte byType;     //�������ͣ�0:��ʱ����,1-24Сʱ����,2-��ʱ���� ,3-�ڲ�������4-Կ�׷��� 5-�𾯷��� 6-�ܽ���� 7-24Сʱ��������  8-24Сʱ����������9-24Сʱ�𶯷���,10-�Ž��������ŷ�����11-�Ž��������ŷ��� 0xff-��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MACADDR_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byMACAddr; //������ַ��Ϊ0��Ч
+            public byte bySwipeCardType;//ˢ�����ͣ�0-��Ч��1-��ά��
+            public byte byEventAttribute; //�¼����ԣ�0-δ���壬1-�Ϸ���֤��2-����
+            public uint dwSerialNo; //�¼���ˮ�ţ�Ϊ0��Ч
+            public byte byChannelControllerID; //ͨ��������ID��Ϊ0��Ч��1-��ͨ����������2-��ͨ��������
+            public byte byChannelControllerLampID; //ͨ���������ư�ID��Ϊ0��Ч����Ч��Χ1-255��
+            public byte byChannelControllerIRAdaptorID; //ͨ������������ת�Ӱ�ID��Ϊ0��Ч����Ч��Χ1-255��
+            public byte byChannelControllerIREmitterID; //ͨ���������������ID��Ϊ0��Ч����Ч��Χ1-255��
+            public uint dwRecordChannelNum; //¼��ͨ����Ŀ
+            public IntPtr pRecordChannelData;//¼��ͨ������СΪsizeof(DWORD)* dwRecordChannelNum
+            public byte byUserType; //��Ա���ͣ�0-��Ч��1-��ͨ�ˣ����ˣ���2-�������ÿͣ���3-��ֹ�����ˣ�4-����Ա
+            public byte byCurrentVerifyMode; //��������ǰ��֤��ʽ��0-��Ч��1-���ߣ�2-ˢ��+���룬3-ˢ����4-ˢ�������룬5-ָ�ƣ�6-ָ��+���룬7-ָ�ƻ�ˢ����8-ָ��+ˢ����9-ָ��+ˢ��+���룬10-������ָ�ƻ�ˢ�������룬11-����+ָ�ƣ�12-����+���룬
+            //13-����+ˢ����14-������15-����+���룬16-ָ�ƻ����룬17-����+ָ�ƣ�18-����+ָ��+���룬19-����+ָ��+ˢ����20-����+����+ָ�ƣ�21-����+������22-����������+ˢ����23-ָ�ƻ�������24-ˢ�������������룬25-ˢ����������26-ˢ����������ָ�ƣ�27-ˢ����ָ�ƻ�����
+            public byte byAttendanceStatus;  //����״̬��0-δ����,1-�ϰ࣬2-�°࣬3-��ʼ��Ϣ��4-������Ϣ��5-��ʼ�Ӱ࣬6-�����Ӱ�
+            public byte byStatusValue;  //����״ֵ̬
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NET_SDK_EMPLOYEE_NO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byEmployeeNo; //���ţ���ԱID���������豸��˵�����ʹ���˹��ţ���ԱID���ֶΣ�byEmployeeNoһ��Ҫ���ݣ����byEmployeeNo��ת��ΪdwEmployeeNo����ô���ֶ�ҲҪ���ݣ������ϲ�ƽ̨��ͻ�����˵�����Ƚ���byEmployeeNo�ֶΣ�����ֶ�Ϊ�գ��ٿ��ǽ���dwEmployeeNo�ֶΣ�
+            public byte byRes1; //����
+            public byte byMask; //�Ƿ�����֣�0-������1-δ֪��2-�������֣�3-������
+            public byte byThermometryUnit; //���µ�λ��0-���϶ȣ�Ĭ�ϣ���1-���϶ȣ�2-�����ģ�
+            public byte byIsAbnomalTemperature; //����ץ�IJ����Ƿ��¶��쳣��1-�ǣ�0-��
+            public float fCurrTemperature; //�����¶ȣ���ȷ��С�����һλ��
+            public NET_VCA_POINT struRegionCoordinates; //�����¶�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 48, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public void init()
+            {
+                byCardNo = new byte[CHCNetSDK.ACS_CARD_NO_LEN];
+                byMACAddr = new byte[CHCNetSDK.MACADDR_LEN];
+                byEmployeeNo = new byte[CHCNetSDK.NET_SDK_EMPLOYEE_NO_LEN];
+                byRes = new byte[48];
+            }
+         }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ACS_EVENT_CFG
+        {
+            public uint dwSize;
+            public uint dwMajor; //���������ͣ��ο��궨��
+            public uint dwMinor; //���������ͣ��ο��궨��
+            public NET_DVR_TIME struTime; //ʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_NAMELEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sNetUser;//����������û���
+            public NET_DVR_IPADDR struRemoteHostAddr;//Զ��������ַ
+            public NET_DVR_ACS_EVENT_DETAIL struAcsEventInfo; //��ϸ����
+            public uint dwPicDataLen;   //ͼƬ���ݴ�С����Ϊ0�DZ�ʾ���������
+            public IntPtr pPicData;
+            public ushort wInductiveEventType; //�����¼����ͣ�0-��Ч������ֵ�μ�2.2�½ڣ��ͻ����жϸ�ֵΪ��0ֵ�󣬱�������ͨ�������¼��������֣�����ͨ��ԭ�б����������ͣ�dwMajor��dwMinor������
+            public byte byTimeType; //ʱ�����ͣ�0-�豸����ʱ�䣨Ĭ�ϣ���1-UTCʱ�䣨struTime��ʱ�䣩
+            public byte byRes1;
+            public uint dwQRCodeInfoLen; //��ά����Ϣ���ȣ���Ϊ0�DZ�ʾ���������
+            public uint dwVisibleLightDataLen; //�ȳ�������ɼ���ͼƬ���ȣ���Ϊ0�DZ�ʾ���������
+            public uint dwThermalDataLen; //�ȳ���ͼƬ���ȣ���Ϊ0�DZ�ʾ���������
+            public IntPtr pQRCodeInfo; //��ά����Ϣָ��
+            public IntPtr pVisibleLightData; //�ȳ�������ɼ���ͼƬָ��
+            public IntPtr pThermalData; //�ȳ���ͼƬָ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 36, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public void init()
+            {
+                sNetUser = new byte[CHCNetSDK.MAX_NAMELEN];
+                struRemoteHostAddr.Init();
+                struAcsEventInfo.init();
+                byRes = new byte[36];
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_DATE
+        {
+            public ushort wYear;        //��
+            public byte byMonth;        //��    
+            public byte byDay;        //��                        
+        }
+
+        //����֤��Ϣ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ID_CARD_INFO
+        {
+            public uint dwSize;        //�ṹ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ID_NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byName;   //����
+            public NET_DVR_DATE struBirth; //��������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ID_ADDR_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byAddr;  //סַ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ID_NUM_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byIDNum;   //����֤����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_ID_ISSUING_AUTHORITY_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byIssuingAuthority;  //ǩ������
+            public NET_DVR_DATE struStartDate;  //��Ч��ʼ����
+            public NET_DVR_DATE struEndDate;  //��Ч��ֹ����
+            public byte byTermOfValidity;  //�Ƿ�����Ч�� 0-��1-�ǣ���Ч��ֹ������Ч��
+            public byte bySex;  //�Ա�1-�У�2-Ů
+            public byte byNation;    
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 101, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //��չ�ṹ����Ϣ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ID_CARD_INFO_EXTEND
+        {
+            public byte byRemoteCheck; //�Ƿ���ҪԶ�̺��飨0-��Ч��1-����Ҫ��Ĭ�ϣ���2-��Ҫ��
+            public byte byThermometryUnit; //���µ�λ��0-���϶ȣ�Ĭ�ϣ���1-���϶ȣ�2-�����ģ�
+            public byte byIsAbnomalTemperature; //����ץ�IJ����Ƿ��¶��쳣��1-�ǣ�0-��
+            public byte byRes2;
+            public float fCurrTemperature; //�����¶ȣ���ȷ��С�����һλ��
+            public NET_VCA_POINT struRegionCoordinates; //�����¶�����
+            public uint dwQRCodeInfoLen; //��ά����Ϣ���ȣ���Ϊ0�DZ�ʾ���������
+            public uint dwVisibleLightDataLen; //�ȳ�������ɼ���ͼƬ���ȣ���Ϊ0�DZ�ʾ���������
+            public uint dwThermalDataLen; //�ȳ���ͼƬ���ȣ���Ϊ0�DZ�ʾ���������
+            public IntPtr pQRCodeInfo; //��ά����Ϣָ��
+            public IntPtr pVisibleLightData; //�ȳ�������ɼ���ͼƬָ��
+            public IntPtr pThermalData; //�ȳ���ͼƬָ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 1024, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //����֤��Ϣ����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ID_CARD_INFO_ALARM
+        {
+            public uint dwSize;        //�ṹ����
+            public NET_DVR_ID_CARD_INFO struIDCardCfg;//����֤��Ϣ
+            public uint dwMajor; //���������ͣ��ο��궨��
+            public uint dwMinor; //���������ͣ��ο��궨��
+            public NET_DVR_TIME_V30 struSwipeTime; //ʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_NAMELEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byNetUser;//����������û���
+            public NET_DVR_IPADDR struRemoteHostAddr;//Զ��������ַ
+            public uint dwCardReaderNo; //��������ţ�Ϊ0��Ч
+            public uint dwDoorNo; //�ű�ţ�Ϊ0��Ч
+            public uint dwPicDataLen;   //ͼƬ���ݴ�С����Ϊ0�DZ�ʾ���������
+            public IntPtr pPicData;
+            public byte byCardType; //�����ͣ�1-��ͨ����3-��ֹ��������4-Ѳ������5-в�ȿ���6-��������7-��������8-�������Ϊ0��Ч
+            public byte byDeviceNo;                             // �豸��ţ�Ϊ0ʱ��Ч����Ч��Χ1-255��
+            public byte byMask; //�Ƿ�����֣�0-������1-δ֪��2-�������֣�3-������
+            public byte byCurrentEvent;//�Ƿ�Ϊʵʱ�¼���0-��Ч��1-�ǣ�ʵʱ�¼�����2-�������¼���
+            public uint dwFingerPrintDataLen;                  // ָ�����ݴ�С����Ϊ0�DZ�ʾ���������
+            public IntPtr pFingerPrintData;
+            public uint dwCapturePicDataLen;                   // ץ��ͼƬ���ݴ�С����Ϊ0�DZ�ʾ���������
+            public IntPtr pCapturePicData;
+            public uint dwCertificatePicDataLen;   //֤��ץ��ͼƬ���ݴ�С����Ϊ0�DZ�ʾ���������
+            public IntPtr pCertificatePicData;
+            public byte byCardReaderKind; //������������һ�࣬0-��Ч��1-IC��������2-����֤��������3-��ά�������,4-ָ��ͷ
+            public byte byHelmet;//��ѡ���Ƿ����ȫñ��0-������1-δ֪��2-������ȫ, 3-����ȫñ
+            public byte byRes3;
+            public byte byIDCardInfoExtend;    //pIDCardInfoExtend�Ƿ���Ч��0-��Ч��1-��Ч
+            public IntPtr pIDCardInfoExtend;    //byIDCardInfoExtendΪ1ʱ����ʾָ��һ��NET_DVR_ID_CARD_INFO_EXTEND�ṹ��
+            public uint dwSerialNo; //�¼���ˮ�ţ�Ϊ0��Ч
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 168, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_VALID_PERIOD_CFG
+        {
+            public byte byEnable; //ʹ����Ч�ڣ�0-��ʹ�ܣ�1ʹ��
+            public byte byBeginTimeFlag;      //�Ƿ�������ʼʱ��ı�־��0-�����ƣ�1-����
+            public byte byEnableTimeFlag;     //�Ƿ�������ֹʱ��ı�־��0-�����ƣ�1-����
+            public byte byTimeDurationNo;     //��Ч������,��0��ʼ��ʱ���ͨ��SDK���ø������������ƿ�ʱ��ֻ��Ҫ������Ч���������ɣ��Լ�����������
+            public NET_DVR_TIME_EX struBeginTime; //��Ч����ʼʱ��
+            public NET_DVR_TIME_EX struEndTime; //��Ч�ڽ���ʱ��
+            public byte byTimeType; //ʱ�����ͣ�0-�豸����ʱ�䣨Ĭ�ϣ���1-UTCʱ�䣨����struBeginTime��struEndTime�ֶ���Ч��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 31, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CARD_COND
+        {
+            public uint dwSize;
+            public uint dwCardNum; //card number, 0xffffffff means to get all card information when getting
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+
+            public void Init()
+            {
+                byRes = new byte[64];
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CARD_RECORD
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = ACS_CARD_NO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byCardNo; //card No
+            public byte byCardType;
+            public byte byLeaderCard;
+            public byte byUserType;
+            public byte byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DOOR_NUM_256, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDoorRight;
+            public NET_DVR_VALID_PERIOD_CFG struValid;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_GROUP_NUM_128, ArraySubType = UnmanagedType.I1)]
+            public byte[] byBelongGroup;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = CARD_PASSWORD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byCardPassword;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DOOR_NUM_256, ArraySubType = UnmanagedType.I1)]
+            public ushort[] wCardRightPlan;
+            public uint dwMaxSwipeTimes;
+            public uint dwSwipeTimes;
+            public uint dwEmployeeNo;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byName;
+            //��λ��ʾ��0-��Ȩ�ޣ�1-��Ȩ��
+            //��0λ��ʾ�����籨��
+            //��1λ��ʾ��������ʾ��
+            //��2λ��ʾ�����ƿͿ�
+            //��3λ��ʾ��ͨ��
+            //��4λ��ʾ����������
+            //��5λ��ʾ��Ѳ������
+            public uint dwCardRight;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 256, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+
+            public void Init()
+            {
+                byCardNo = new byte[ACS_CARD_NO_LEN];
+                byDoorRight = new byte[MAX_DOOR_NUM_256];
+                byBelongGroup = new byte[MAX_GROUP_NUM_128];
+                byCardPassword = new byte[CARD_PASSWORD_LEN];
+                wCardRightPlan = new ushort[MAX_DOOR_NUM_256];
+                byName = new byte[NAME_LEN];
+                byRes = new byte[256];
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CARD_STATUS
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = ACS_CARD_NO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byCardNo; //card No
+            public uint dwErrorCode;
+            public byte byStatus; //0-fail, 1-success
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 23, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+
+            public void Init()
+            {
+                byCardNo = new byte[ACS_CARD_NO_LEN];
+                byRes = new byte[23];
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CARD_SEND_DATA
+        {
+            public uint dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = ACS_CARD_NO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byCardNo; //card No
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+
+            public void Init()
+            {
+                byCardNo = new byte[ACS_CARD_NO_LEN];
+                byRes = new byte[16];
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FACE_PARAM_CTRL_ByCard
+        {
+            public int dwSize;
+            public byte byMode;//0 del by card,1 del by card reader
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_DVR_FACE_PARAM_BYCARD struProcessMode;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+
+            public void Init()
+            {
+                byRes1 = new byte[3];
+                byRes = new byte[64];
+                struProcessMode = new NET_DVR_FACE_PARAM_BYCARD();
+                struProcessMode.Init();
+            }
+        }
+
+        public const int MAX_FACE_NUM = 2;                       //max face number
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FACE_PARAM_BYCARD
+        {
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = CHCNetSDK.ACS_CARD_NO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byCardNo;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = CHCNetSDK.MAX_CARD_READER_NUM_512, ArraySubType = UnmanagedType.I1)]
+            public byte[] byEnableCardReader;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = CHCNetSDK.MAX_FACE_NUM, ArraySubType = UnmanagedType.I1)]
+            public byte[] byFaceID;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 42, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+
+            public void Init()
+            {
+                byCardNo = new byte[CHCNetSDK.ACS_CARD_NO_LEN];
+                byEnableCardReader = new byte[CHCNetSDK.MAX_CARD_READER_NUM_512];
+                byFaceID = new byte[CHCNetSDK.MAX_FACE_NUM];
+                byRes1 = new byte[42];
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FACE_PARAM_CTRL_ByReader
+        {
+            public int dwSize;
+            public byte byMode;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_DVR_FACE_PARAM_BYREADER struProcessMode;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+
+            public void Init()
+            {
+                byRes1 = new byte[3];
+                byRes = new byte[64];
+                struProcessMode = new NET_DVR_FACE_PARAM_BYREADER();
+                struProcessMode.Init();
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FACE_PARAM_BYREADER
+        {
+            public int dwCardReaderNo;
+            public byte byClearAllCard;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = CHCNetSDK.ACS_CARD_NO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byCardNo;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 548, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+
+            public void Init()
+            {
+                byRes1 = new byte[3];
+                byCardNo = new byte[CHCNetSDK.ACS_CARD_NO_LEN];
+                byRes = new byte[548];
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FACE_STATUS
+        {
+            public int dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = CHCNetSDK.ACS_CARD_NO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byCardNo;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = CHCNetSDK.ERROR_MSG_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byErrorMsg;//�·�������Ϣ����byCardReaderRecvStatusΪ4ʱ����ʾ�Ѵ���������Ӧ�Ŀ���
+            public int dwReaderNo; //������������ţ��������·����󷵻�
+            public byte byRecvStatus;  //����������״̬�����ֽڱ�ʾ��0-ʧ�ܣ�1-�ɹ���2-���Ի����������3-�ڴ�����(����������)��4-�Ѵ��ڸ�������5-�Ƿ�����ID
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 131, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public void init()
+            {
+                byCardNo = new byte[CHCNetSDK.ACS_CARD_NO_LEN];
+                byErrorMsg = new byte[CHCNetSDK.ERROR_MSG_LEN];
+                byRes = new byte[131];
+            }
+        }
+
+        [StructLayout(LayoutKind.Sequential)]
+        public struct NET_DVR_FACE_RECORD
+        {
+            public int dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = CHCNetSDK.ACS_CARD_NO_LEN)]
+            public byte[] byCardNo;
+            public int dwFaceLen;
+            public IntPtr pFaceBuffer;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 128)]
+            public byte[] byRes;
+
+            public void init()
+            {
+                byCardNo = new byte[CHCNetSDK.ACS_CARD_NO_LEN];
+                byRes = new byte[128];
+            }
+        }
+
+
+        [StructLayout(LayoutKind.Sequential)]
+        public struct NET_DVR_FACE_COND
+        {
+            public int dwSize;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = CHCNetSDK.ACS_CARD_NO_LEN)]
+            public byte[] byCardNo;//���������Ŀ��ţ�����ʱ�ò����ɲ����ã�
+            public int dwFaceNum;// ���û��ȡ������������ȡʱ��Ϊ0xffffffff��ʾ��ȡ����������Ϣ
+            public int dwEnableReaderNo;// �������������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 124)]
+            public byte[] byRes;
+            public void init()
+            {
+                byCardNo = new byte[CHCNetSDK.ACS_CARD_NO_LEN];
+                byRes = new byte[124];
+            }
+        }
+
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FACE_PARAM_CTRL_CARDNO
+        {
+            public int dwSize;
+            public byte byMode;//ɾ����ʽ��0-�����ŷ�ʽɾ����1-��������ɾ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public CHCNetSDK.NET_DVR_FACE_PARAM_BYCARD struByCard;//�����ŵķ�ʽɾ��,��������ʱ��д
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public void Init()
+            {
+                byRes1 = new byte[3];
+                byRes = new byte[64];
+                struByCard.Init();
+            }
+        }
+
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FINGERPRINT_COND
+        {
+            public int dwSize;
+            public int dwFingerprintNum;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = CHCNetSDK.ACS_CARD_NO_LEN)]
+            public byte[] byCardNo;
+            public int dwEnableReaderNo;
+            public byte byFingerPrintID;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 131)]
+            public byte[] byRes;
+
+            public void init()
+            {
+                byCardNo = new byte[CHCNetSDK.ACS_CARD_NO_LEN];
+                byRes = new byte[131];
+            }
+        }
+
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CARD_CFG_V50
+        {
+            public uint dwSize;
+            public uint dwModifyParamType;
+            // ��Ҫ�޸ĵĿ����������ÿ�����ʱ��Ч����λ��ʾ��ÿλ����һ�ֲ�����1Ϊ��Ҫ�޸ģ�0Ϊ���޸�
+            // #define CARD_PARAM_CARD_VALID       0x00000001 //���Ƿ���Ч����
+            // #define CARD_PARAM_VALID            0x00000002  //��Ч�ڲ���
+            // #define CARD_PARAM_CARD_TYPE        0x00000004  //�����Ͳ���
+            // #define CARD_PARAM_DOOR_RIGHT       0x00000008  //��Ȩ�޲���
+            // #define CARD_PARAM_LEADER_CARD      0x00000010  //�׿�����
+            // #define CARD_PARAM_SWIPE_NUM        0x00000020  //���ˢ����������
+            // #define CARD_PARAM_GROUP            0x00000040  //����Ⱥ�����
+            // #define CARD_PARAM_PASSWORD         0x00000080  //���������
+            // #define CARD_PARAM_RIGHT_PLAN       0x00000100  //��Ȩ�޼ƻ�����
+            // #define CARD_PARAM_SWIPED_NUM       0x00000200  //��ˢ������
+            // #define CARD_PARAM_EMPLOYEE_NO      0x00000400  //����
+            // #define CARD_PARAM_NAME             0x00000800  //����
+            // #define CARD_PARAM_DEPARTMENT_NO    0x00001000  //���ű��
+            // #define CARD_SCHEDULE_PLAN_NO       0x00002000  //�Ű�ƻ����
+            // #define CARD_SCHEDULE_PLAN_TYPE     0x00004000  //�Ű�ƻ�����
+            // #define CARD_ROOM_NUMBER            0x00008000  //�����
+            // #define CARD_SIM_NO                 0x00010000  //SIM���ţ��ֻ��ţ�
+            // #define CARD_FLOOR_NUMBER           0x00020000  //¥���
+            // #define CARD_USER_TYPE              0x00040000  //�û�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = ACS_CARD_NO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byCardNo; //����
+            public byte byCardValid; //���Ƿ���Ч��0-��Ч��1-��Ч������ɾ����������ʱ��Ϊ0����ɾ������ȡʱ���ֶ�ʼ��Ϊ1��
+            public byte byCardType; //�����ͣ�1-��ͨ����3-��ֹ��������4-Ѳ������5-в�ȿ���6-��������7-��������8-�������9-Ա������10-Ӧ������11-Ӧ����������������Ȩ��ʱ��Ȩ�ޣ��������ܿ��ţ���Ĭ����ͨ��
+            public byte byLeaderCard; //�Ƿ�Ϊ�׿���1-�ǣ�0-��
+            public byte byUserType; // 0 �C ��ͨ�û�1 - ����Ա�û�;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DOOR_NUM_256, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDoorRight; //��Ȩ��(¥��Ȩ�ޡ���Ȩ��)����λ��ʾ��1Ϊ��Ȩ�ޣ�0Ϊ��Ȩ�ޣ��ӵ�λ����λ��ʾ���ţ�����1-N�Ƿ���Ȩ��
+            public NET_DVR_VALID_PERIOD_CFG struValid; //��Ч�ڲ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_GROUP_NUM_128, ArraySubType = UnmanagedType.I1)]
+            public byte[] byBelongGroup; //����Ⱥ�飬���ֽڱ�ʾ��1-���ڣ�0-������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = CARD_PASSWORD_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byCardPassword; //������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DOOR_NUM_256*MAX_CARD_RIGHT_PLAN_NUM, ArraySubType = UnmanagedType.U2)]
+            public ushort[] wCardRightPlan; //��Ȩ�޼ƻ���ȡֵΪ�ƻ�ģ���ţ�ͬ���ţ�������ͬ�ƻ�ģ�����Ȩ�޻�ķ�ʽ����
+            public uint dwMaxSwipeTime; //���ˢ��������0Ϊ�޴������ƣ�����������
+            public uint dwSwipeTime; //��ˢ������
+            public ushort wRoomNumber;  //�����
+            public ushort wFloorNumber;   //���
+            public uint dwEmployeeNo;   //���ţ��û�ID��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byName;   //����
+            public ushort wDepartmentNo;   //���ű��
+            public ushort wSchedulePlanNo;   //�Ű�ƻ����
+            public byte bySchedulePlanType;  //�Ű�ƻ����ͣ�0-�����塢1-���ˡ�2-����
+            public byte byRightType;  //�·�Ȩ�����ͣ�0-��ͨ����Ȩ�ޡ�1-��ά��Ȩ�ޡ�2-����Ȩ�ޣ����ӶԽ��豸��ά��Ȩ�����������š����ţ����⿨�ţ������ˢ����������������������Ч�ڲ���������Ȩ�ޣ����ţ�өʯAPP�˺ţ�������������������ͨ����Ȩ��һ�£�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+            public uint dwLockID;  //��ID
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_LOCK_CODE_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byLockCode;    //������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DOOR_CODE_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRoomCode;  //�������
+            //��λ��ʾ��0-��Ȩ�ޣ�1-��Ȩ��
+            //��0λ��ʾ�����籨��
+            //��1λ��ʾ��������ʾ��
+            //��2λ��ʾ�����ƿͿ�
+            //��3λ��ʾ��ͨ��
+            //��4λ��ʾ����������
+            //��5λ��ʾ��Ѳ������
+            public uint dwCardRight;      //��Ȩ��
+            public uint dwPlanTemplate;   //�ƻ�ģ��(ÿ��)��ʱ����Ƿ����ã���λ��ʾ��0--�����ã�1-����
+            public uint dwCardUserId;    //�ֿ���ID
+            public byte byCardModelType;  //0-�գ�1- M1 CARD S50��2- M1 CARD S70��3- FM1208 CPU����4- FM1216 CPU����5-����CPU����6-����֤��7- NFC
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 51, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes3;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] bySIMNum; //SIM���ţ��ֻ��ţ�
+        }
+        
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CHECK_FACE_PICTURE_COND
+        {
+            public uint dwSize;
+            public uint dwPictureNum; //ͼƬ����
+            public byte byCheckTemplate; //0-У��ͼƬ�Ƿ�Ϸ���Ĭ�ϣ���1-У��ͼƬ�ͽ�ģ�����Ƿ�ƥ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 127, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+        
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_GROUP_COMBINATION_INFO_V50
+        {
+            public byte byEnable; //�Ƿ����ø�Ⱥ�����
+            public byte byMemberNum; //ˢ����Ա����
+            public byte bySequenceNo; //Ⱥ��ˢ�������
+            public byte byRes;
+            public uint dwGroupNo;  //Ⱥ����,0xffffffff��ʾԶ�̿��ţ�0xfffffffe��ʾ��������
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MULTI_CARD_GROUP_CFG_V50
+        {
+            public byte byEnable; //�Ƿ����øö��ؿ��������0-�����ã�1-����
+            public byte byEnableOfflineVerifyMode; //�Ƿ�������������ʱ��֤��ʽ�������������Զ�̿��ţ���1-���ã�0-������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public uint dwTemplateNo; //���ö��ؿ����ܵļƻ�ģ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = GROUP_COMBINATION_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_GROUP_COMBINATION_INFO_V50[] struGroupCombination; //Ⱥ����ϲ���
+        }
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_MULTI_CARD_CFG_V50
+        {
+            public uint dwSize;
+            public byte byEnable; //�Ƿ����ö��ؿ����ܣ�0-�����ã�1-����
+            public byte bySwipeIntervalTimeout; //ˢ�������ʱʱ�䣬1-255s��Ĭ��10s
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NET_SDK_MULTI_CARD_GROUP_NUM_20, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_MULTI_CARD_GROUP_CFG_V50[] struGroupCfg; //Ⱥ��ˢ������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+        }
+
+        public const int NET_SDK_MONITOR_ID_LEN = 64; //������ID����
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ACS_EVENT_COND
+        {
+            public uint dwSize;
+            public uint dwMajor; //���������ͣ��ο��¼��ϴ��궨�壬0-ȫ��
+            public uint dwMinor; //���������ͣ��ο��¼��ϴ��궨�壬0-ȫ��
+            public NET_DVR_TIME  struStartTime; //��ʼʱ��
+            public NET_DVR_TIME  struEndTime; //����ʱ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = ACS_CARD_NO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byCardNo; //����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byName; //�ֿ�������
+            public byte byPicEnable; //�Ƿ��ͼƬ��0-����ͼƬ��1-��ͼƬ
+            public byte byTimeType; //ʱ�����ͣ�0-�豸����ʱ�䣨Ĭ�ϣ���1-UTCʱ�䣨struStartTime��struEndTime��ʱ�䣩
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2; //����
+            public uint dwBeginSerialNo; //��ʼ��ˮ�ţ�Ϊ0ʱĬ��ȫ����
+            public uint dwEndSerialNo; //������ˮ�ţ�Ϊ0ʱĬ��ȫ����
+            public uint dwIOTChannelNo; //IOTͨ���ţ�0-��Ч
+            public ushort wInductiveEventType; //�����¼����ͣ�0-��Ч������ֵ�μ�2.2�½ڣ��ͻ����жϸ�ֵΪ��0ֵ�󣬱�������ͨ�������¼��������֣�����ͨ��ԭ�б����������ͣ�dwMajor��dwMinor������
+            public byte bySearchType;      //������ʽ��0-������1-���¼�Դ��������ʱͨ����Ϊ����Ƶͨ���ţ���2-��������ID����
+            public byte byEventAttribute; //�¼����ԣ�0-δ���壬1-�Ϸ��¼���2-����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NET_SDK_MONITOR_ID_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] szMonitorID;          //������ID�����豸���кš�ͨ�����͡������ɣ������Ž��㣺�豸���к�+��DOOR��+�ű�ţ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NET_SDK_EMPLOYEE_NO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byEmployeeNo; //���ţ���ԱID��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 140, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes; //����
+
+            public void Init()
+            {
+                byCardNo = new byte[CHCNetSDK.ACS_CARD_NO_LEN];
+                byName = new byte[CHCNetSDK.NAME_LEN];
+                byRes2 = new byte[2];
+                byEmployeeNo = new byte[CHCNetSDK.NET_SDK_EMPLOYEE_NO_LEN];
+                byRes = new byte[140];
+            }
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_LOCAL_GENERAL_CFG
+        {
+            public byte byExceptionCbDirectly;    //0-ͨ���̳߳��쳣�ص���1-ֱ���쳣�ص����ϲ�
+            public byte byNotSplitRecordFile;     //�طź�Ԥ���б��浽����¼���ļ�����Ƭ 0-Ĭ����Ƭ��1-����Ƭ
+            public byte byResumeUpgradeEnable;    //������������ʹ�ܣ�0-�رգ�Ĭ�ϣ���1-����
+            public byte byAlarmJsonPictureSeparate;   //����JSON͸���������ݺ�ͼƬ�Ƿ���룬0-�����룬1-���루�������COMM_ISAPI_ALARM�ص����أ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;      //����
+            public Int64 i64FileSize;      //���Byte
+            public uint dwResumeUpgradeTimeout;       //��������������ʱʱ�䣬��λ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 236, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;    //Ԥ��
+        }
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_LOCAL_CHECK_DEV
+        {
+            public uint dwCheckOnlineTimeout;     //Ѳ��ʱ��������λms  ��СֵΪ30s�����ֵ120s��Ϊ0ʱ����ʾ��Ĭ��ֵ(120s)
+            public uint dwCheckOnlineNetFailMax;  //��������ԭ��ʧ�ܵ�����ۼӴ�����������ֵSDK�Żص��û��쳣��Ϊ0ʱ����ʾʹ��Ĭ��ֵ1
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 256, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ALARM_ISAPI_INFO
+        {
+            public IntPtr pAlarmData;           // ��������
+            public uint dwAlarmDataLen;   // �������ݳ���
+            public byte byDataType;        // 0-invalid,1-xml,2-json
+            public byte byPicturesNumber;  // ͼƬ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public IntPtr pPicPackData;         // ͼƬ�䳤����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+        }
+        public const int MAX_FILE_PATH_LEN = 256;     //�ļ�·������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ALARM_ISAPI_PICDATA
+        {
+            public uint dwPicLen;
+            public byte byPicType;  //ͼƬ��ʽ: 1- jpg
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_FILE_PATH_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] szFilename;
+            public IntPtr pPicData;
+        }
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_EXTERNAL_DEVICE_STATE_UNION
+        {
+           [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 512, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+        
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_ALARMHOST_EXTERNAL_DEVICE_STATE
+        {
+            public uint dwSize;
+            public byte byDevType;    //1-UPS��2-���ص�Դ��3-������ϵͳ��4-��ʪ�ȴ�������5-�յ���6-��������7-�����״̬, 8-ˮλ��������9-�ﳾ������������10-�����ɼ��ǡ�11-���ٴ�����״̬��12-ͨ����չ���ģ��״̬��13-��ˮ������״̬��14-̫���ܿ�����״̬��15-SF6��������״̬��16-������״̬��17-����ɼ�ϵͳ״̬��18-ˮ�ʼ����״̬��19-ȼ����ʾϵͳ״̬��20-��������״̬
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_DVR_EXTERNAL_DEVICE_STATE_UNION struDevState;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes2;
+       }
+
+        //�豸��������
+        public const int REGIONTYPE = 0;//��������
+        public const int MATRIXTYPE = 11;//����ڵ�
+        public const int DEVICETYPE = 2;//�����豸
+        public const int CHANNELTYPE = 3;//����ͨ��
+        public const int USERTYPE = 5;//�����û�
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_LOG_MATRIX
+        {
+            public NET_DVR_TIME strLogTime;
+            public uint dwMajorType;
+            public uint dwMinorType;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_NAMELEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sPanelUser;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_NAMELEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sNetUser;
+            public NET_DVR_IPADDR struRemoteHostAddr;
+            public uint dwParaType;
+            public uint dwChannel;
+            public uint dwDiskNumber;
+            public uint dwAlarmInPort;
+            public uint dwAlarmOutPort;
+            public uint dwInfoLen;
+            public byte byDevSequence;//���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MACADDR_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byMacAddr;//MAC��ַ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = SERIALNO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sSerialNumber;//���к�
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = LOG_INFO_LEN - SERIALNO_LEN - MACADDR_LEN - 1)]
+            public string sInfo;
+        }
+
+        //��Ƶ�ۺ�ƽ̨����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct tagVEDIOPLATLOG
+        {
+            public byte bySearchCondition;//����������0-����λ��������1-�����к����� 2-��MAC��ַ��������
+            public byte byDevSequence;//��λ�ţ�0-79����Ӧ��ϵͳ�IJ�λ�ţ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = SERIALNO_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sSerialNumber;//���к�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MACADDR_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byMacAddr;//MAC��ַ
+        }
+
+        //�����ؼ���
+        public enum IVS_PARAM_KEY
+        {
+            OBJECT_DETECT_SENSITIVE = 1,//Ŀ����������
+            BACKGROUND_UPDATE_RATE = 2,//���������ٶ�
+            SCENE_CHANGE_RATIO = 3,//�����仯�����Сֵ
+            SUPPRESS_LAMP = 4,//�Ƿ����Ƴ�ͷ��
+            MIN_OBJECT_SIZE = 5,//�ܼ�������СĿ���С
+            OBJECT_GENERATE_RATE = 6,//Ŀ�������ٶ�
+            MISSING_OBJECT_HOLD = 7,//Ŀ����ʧ�����ʱ��
+            MAX_MISSING_DISTANCE = 8,//Ŀ����ʧ���������
+            OBJECT_MERGE_SPEED = 9,//���Ŀ�꽻��ʱ��Ŀ����ں��ٶ�
+            REPEATED_MOTION_SUPPRESS = 10,//�ظ��˶�����
+            ILLUMINATION_CHANGE = 11,//��Ӱ�仯���ƿ���
+            TRACK_OUTPUT_MODE = 12,//���ģʽ��0-���Ŀ������ģ�1-���Ŀ��ĵײ�����
+            ENTER_CHANGE_HOLD = 13,//�������仯��ֵ
+            RESUME_DEFAULT_PARAM = 255,//�ָ�Ĭ�Ϲؼ��ֲ���
+        }
+
+        //�궨�������ýṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_LF_CALIBRATION_PARAM
+        {
+            public byte byPointNum;//��Ч�궨�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CALIB_PT, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_CB_POINT[] struCBPoint;//�궨����
+        }
+
+        //LF˫��������ýṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_LF_CFG
+        {
+            public uint dwSize;//�ṹ����	
+            public byte byEnable;//�궨ʹ��
+            public byte byFollowChan;// �����ƵĴ�ͨ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public NET_DVR_LF_CALIBRATION_PARAM struCalParam;//�궨����
+        }
+
+        //L/F�ֶ����ƽṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_LF_MANUAL_CTRL_INFO
+        {
+            public NET_VCA_POINT struCtrlPoint;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //L/FĿ��ṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_LF_TRACK_TARGET_INFO
+        {
+            public uint dwTargetID;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 8, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_LF_TRACK_MODE
+        {
+            public uint dwSize;//�ṹ����
+            public byte byTrackMode;//ģʽ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;//��������0
+            [StructLayoutAttribute(LayoutKind.Explicit)]
+            public struct uModeParam
+            {
+                [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.U4)]
+                [FieldOffsetAttribute(0)]
+                public uint[] dwULen;
+                /*[FieldOffsetAttribute(0)]
+                public NET_DVR_LF_MANUAL_CTRL_INFO struManualCtrl;//�ֶ��ṹ
+                [FieldOffsetAttribute(0)]
+                public NET_DVR_LF_TRACK_TARGET_INFO struTargetTrack;//Ŀ��ṹ
+                 * */
+            }
+        }        
+
+        // Long config callback type
+        public enum NET_SDK_CALLBACK_TYPE
+        {
+            NET_SDK_CALLBACK_TYPE_STATUS = 0, //�ص�״ֵ̬
+            NET_SDK_CALLBACK_TYPE_PROGRESS,   //�ص�����ֵ 
+            NET_SDK_CALLBACK_TYPE_DATA        //�ص���������
+        }
+        
+
+        // Long config status value
+        public enum NET_SDK_CALLBACK_STATUS_NORMAL
+        {
+            NET_SDK_CALLBACK_STATUS_SUCCESS = 1000,        //�ɹ�
+            NET_SDK_CALLBACK_STATUS_PROCESSING,            //������
+            NET_SDK_CALLBACK_STATUS_FAILED,                //ʧ��
+            NET_SDK_CALLBACK_STATUS_EXCEPTION,             //�쳣
+            NET_SDK_CALLBACK_STATUS_LANGUAGE_MISMATCH,     //���Բ�ƥ��
+            NET_SDK_CALLBACK_STATUS_DEV_TYPE_MISMATCH,     //�豸���Ͳ�ƥ��
+            NET_DVR_CALLBACK_STATUS_SEND_WAIT             //���͵ȴ�
+        }
+        
+        //Sensor��Ϣ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SENSOR_PARAM
+        {
+            public byte bySensorType;//SensorType:0-CCD,1-CMOS
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 31, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+            public float  fHorWidth;//ˮƽ���� ��ȷ��С�������λ *10000
+            public float  fVerWidth;//��ֱ���� ��ȷ��С�������λ *10000
+            public float  fFold;//zoom=1û��ʱ�Ľ��� ��ȷ��С�������λ *100
+        }
+        
+        
+       //���λ����Ϣ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PTZPOS_PARAM{
+            public float fPanPos;//ˮƽ��������ȷ��С�����1λ
+            public float fTiltPos;//��ֱ��������ȷ��С�����1λ
+            public float fZoomPos;//�䱶��������ȷ��С�����1λ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 16, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes ;
+        }
+
+        //GIS��Ϣ�ϴ�
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_GIS_UPLOADINFO
+        {
+            public uint dwSize;//�ṹ���С
+            public uint dwRelativeTime; //���ʱ��
+            public uint dwAbsTime; //����ʱ��
+            public NET_VCA_DEV_INFO    struDevInfo;//ǰ���豸
+            public float fAzimuth;//�������̵ķ�λ��Ϣ����λ��[0.00��,360.00��)
+            public byte byLatitudeType ;//γ�����ͣ�0-��γ��1-��γ
+            public byte byLongitudeType ;// �������ͣ�0-���ȣ�1-����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            public NET_DVR_LLI_PARAM struLatitude;     /*�*/
+            public NET_DVR_LLI_PARAM struLongitude;   /*����*/
+            public float   fHorizontalValue;//ˮƽ�ӳ��ǣ���ȷ��С���������λ
+            public float   fVerticalValue;//��ֱ�ӳ��ǣ���ȷ��С���������λ
+            public float   fVisibleRadius;//��ǰ���Ӱ뾶����ȷ��С���������λ
+            public float   fMaxViewRadius;//�����Ӱ뾶����ȷ��С�������0λ��Ԥ��������
+            public NET_DVR_SENSOR_PARAM  struSensorParam;//Sensor��Ϣ
+            public NET_DVR_PTZPOS_PARAM  struPtzPos; //ptz����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 256, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+         }
+         
+         public const int NET_SDK_MAX_FDID_LEN = 256;
+
+        //������������(����ͼƬ+ͼƬ������Ϣ)������������������ṹ�塣
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_FACELIB_COND
+        {
+            public uint dwSize;     		// �ṹ��С
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NET_SDK_MAX_FDID_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] szFDID;
+            public byte byConcurrent;//�豸����������0- ��������1- ��ʼ 
+            public byte byCover;//�Ƿ񸲸�ʽ���� 0-��1-��
+            public byte byCustomFaceLibID;//FDID�Ƿ����Զ��壬0-���ǣ�1-�ǣ�
+            public byte byPictureSaveMode;//�ϴ�ԭͼ����ģʽ��0-���棬1-������;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byIdentityKey;//������������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 60, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;//����
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_SEND_PARAM_IN
+        {
+            public IntPtr pSendData;
+            public uint dwSendDataLen;
+            public NET_DVR_TIME_V30 struTime;
+            public byte byPicType;
+            public byte byPicURL;  //ͼƬ���ݲ���URL��ʽ 0-������ͼƬ���ݣ�1-ͼƬ������URL��ʽ
+            public byte byUploadModeling;
+            public byte byRes1;
+            public uint dwPicMangeNo;
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 32)]
+            public string sPicName;
+            public uint dwPicDisplayTime;
+            public IntPtr pSendAppendData;
+            public uint dwSendAppendDataLen;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 192, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        public enum HKUploadType
+        {
+            IMPORT_DATA_TO_FACELIB = 39,// ������������(����ͼƬ+ͼƬ������Ϣ)��������
+        }
+
+        public const int MAX_UPLOADFILE_URL_LEN = 240;
+
+        //��������ͼƬ���ݵ�������Ľ�������ṹ��
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_UPLOAD_FILE_RET
+        {
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_UPLOADFILE_URL_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] sUrl;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 260, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;//����
+        }
+		
+		//GPS������Ϣ�ṹ��
+		 [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_GPSALARMINFO
+        {
+			[MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = NAME_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byDeviceID;/*�豸��ID��*/
+			public NET_DVR_TIME_EX struGpsTime;    /*GPS�ϴ���ʱ��*/
+			public uint dwLongitude;    /* ����*/
+			public uint dwLatitude;  /* �*/
+			public int iTimeZone; /*ʱ�����÷�������ʾ��+60������1����+480������8����-60����������-480������8�������ֶκ�GPSTime����һ��������ʱ������*/ 
+			public uint dwDirection; /*��������=ʵ�ʷ����Զ�Ϊ��λ����������Ϊ��˳ʱ�뷽����㣩*100*/
+			public ushort wSatellites; /*��������*/
+			public ushort wPrecision; /*����*/
+			public uint dwHeight; /*�߶�:���ף�Ԥ��*/
+			public uint dwGPSSeq; /*GPS��ţ�GPS����ʱҪ�õ�*/
+			public ushort wSpeed;//�ٶȣ���λ��km/h
+			/* direction[0]:'E'or'W'(����/����), direction[1]:'N'or'S'(��γ/��γ)*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+			public byte[] sDirection; 
+			public byte byLocateMode;/*��λģʽ(��ֵ0)��1,������λ,2,���3,����,4,������Ч��65,��Ч��λ��78����Ч��λ*/  
+			[MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+			public byte[] byRes;
+        }
+		
+		//�ȶ�ͼ�����ϴ�
+		[StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_HEATMAP_RESULT
+        {
+			public uint dwSize;
+			public NET_VCA_DEV_INFO struDevInfo;/*�豸��Ϣ*/
+			public NET_DVR_TIME_EX struStartTime;/*��ʼʱ��*/
+			public NET_DVR_TIME_EX struEndTime;/*����ʱ��*/
+			public uint dwMaxHeatMapValue;//����ȶ�ֵ
+			public uint dwMinHeatMapValue;//��С�ȶ�ֵ
+			public uint dwTimeHeatMapValue;// (ʱ���ȶ�ֵ)ƽ���ȶ�ֵ
+			public ushort wArrayLine;//ͼƬ���ص���ֵ 
+			public ushort wArrayColumn;//ͼƬ���ص���ֵ ��������ֵΪ0��ʱ�����ص�ֵ�ڴ���Ϣ�����ڣ�
+			public IntPtr pBuffer;  //�ȶ�ͼƬ���ص�������Ϣ
+			public byte byDetSceneID;//��ⳡ����[1],�����ǰ֧��1������, IPCĬ����0
+			public byte byBrokenNetHttp;     //����������־λ��0-�����ش����ݣ�1-�ش�����
+			public ushort wDevInfoIvmsChannelEx;     //��NET_VCA_DEV_INFO���byIvmsChannel������ͬ���ܱ�ʾ�����ֵ���Ͽͻ�����byIvmsChannel�ܼ������ݣ��������255���¿ͻ��˰汾��ʹ��wDevInfoIvmsChannelEx��
+			public byte byTimeDiffFlag;      /*ʱ���ֶ��Ƿ���Ч  0-ʱ����Ч�� 1-ʱ����Ч */
+			public byte cStartTimeDifferenceH;      /*��ʼʱ����UTC��ʱ�Сʱ����-12 ... +14��+��ʾ����*/
+			public byte cStartTimeDifferenceM;      /*��ʼʱ����UTC��ʱ����ӣ���-30, 30, 45��+��ʾ����*/
+			public byte cStopTimeDifferenceH;        /*����ʱ����UTC��ʱ�Сʱ����-12 ... +14�� +��ʾ����*/
+			public byte cStopTimeDifferenceM;       /*����ʱ����UTC��ʱ����ӣ���-30, 30, 45��+��ʾ����*/
+			public byte byArrayUnitType; //����Ԫ�������ͣ�������Ϣ��ÿ�����ص����ݵ��������ͣ���1-byte��2-short,4-int
+			[MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+			public byte[] byRes1;
+			public uint dwTotalTime;//ͣ��ʱ���ܺͣ���λ�룬����Աͣ��ʱ�䱨��ʱ�ϴ�
+			[MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 112, ArraySubType = UnmanagedType.I1)]
+			public byte[] byRes;
+		}
+
+        //��ʾ��ʵʱ���ݽṹ��
+        [StructLayout(LayoutKind.Sequential)]
+        public struct NET_DVR_ALARMHOST_POINT_VALUE
+        {
+            public byte byChanType;         // �������ͣ�1-����ģ����ͨ����2-���ؿ�����ͨ����3-485ͨ����4-����ͨ��
+            public byte byPointType;        // �����ͣ�1-ң�⣨ģ��������2-ң�ţ���������
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)]
+            public byte[] byRes1;           // ����
+            public uint dwChanNo;           // 485ͨ���ţ�0xffffffff��ʾ��Ч��ͨ������Ϊ1ʱ����ʾ����ģ����ͨ���ţ�ͨ������Ϊ2ʱ��ʾ���ؿ�����ͨ���ţ�ͨ������Ϊ3ʱ��ʾ485ͨ���š�
+            public uint dwSubChanNo;        // ��λ�ţ�0xffffffff��ʾ��Ч��ͨ������Ϊ3ʱʹ��
+            public uint dwVariableNo;       // ������ţ�0xffffffff��ʾ��Ч
+            public uint dwPointNo;          // 104��ţ�0xffffffff��ʾ��Ч
+            public int iValue;              // ��ʾ���ֵ����ʾ��32λ
+            public int iValueEx;            // ��ʾ���ֵ����ʾ��32λ
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 12)]
+            public byte[] byRes;            // ����
+        }
+
+
+
+        //���������ϴ���Ϣ�ṹ��
+        [StructLayout(LayoutKind.Sequential)]
+        public struct NET_DVR_ALARMHOST_DATA_UPLOAD
+        {
+            public uint dwSize;                                     //�ṹ����
+            public byte byDataType;                                 //�������ͣ�1-��ʾ��ʵʱ�����ϴ�
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 3)]
+            public byte[] byRes1;                                   //�����ֽ�
+            public NET_DVR_ALARMHOST_POINT_VALUE struPointValue;      //������������������
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 32)]
+            public byte[] byRes2;                                   //�����ֽ�
+        }
+		
+        /********************************�ӿڲ����ṹ(end)*********************************/
+
+
+        #region �ӿں���
+        /********************************SDK�ӿں�������*********************************/
+
+        /*********************************************************
+        Function:	NET_DVR_Init
+        Desc:		��ʼ��SDK����������SDK������ǰ�ᡣ
+        Input:	
+        Output:	
+        Return:	TRUE��ʾ�ɹ���FALSE��ʾʧ�ܡ�
+        **********************************************************/
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_Init();
+
+        /*********************************************************
+        Function:	NET_DVR_Cleanup
+        Desc:		�ͷ�SDK��Դ���ڽ���֮ǰ������
+        Input:	
+        Output:	
+        Return:	TRUE��ʾ�ɹ���FALSE��ʾʧ��
+        **********************************************************/
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_Cleanup();
+
+
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetDVRMessage(uint nMessage, IntPtr hWnd);
+
+        /*********************************************************
+        Function:	EXCEPYIONCALLBACK
+        Desc:		(�ص�����)
+        Input:	
+        Output:	
+        Return:	
+        **********************************************************/
+        public delegate void EXCEPYIONCALLBACK(uint dwType, int lUserID, int lHandle, IntPtr pUser);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetExceptionCallBack_V30(uint nMessage, IntPtr hWnd, EXCEPYIONCALLBACK fExceptionCallBack, IntPtr pUser);
+
+
+        /*********************************************************
+        Function:	MESSCALLBACK
+        Desc:		(�ص�����)
+        Input:	
+        Output:	
+        Return:	
+        **********************************************************/
+        public delegate int MESSCALLBACK(int lCommand, string sDVRIP, string pBuf, uint dwBufLen);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetDVRMessCallBack(MESSCALLBACK fMessCallBack);
+
+        /*********************************************************
+        Function:	MESSCALLBACKEX
+        Desc:		(�ص�����)
+        Input:	
+        Output:	
+        Return:	
+        **********************************************************/
+        public delegate int MESSCALLBACKEX(int iCommand, int iUserID, string pBuf, uint dwBufLen);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetDVRMessCallBack_EX(MESSCALLBACKEX fMessCallBack_EX);
+
+        /*********************************************************
+        Function:	MESSCALLBACKNEW
+        Desc:		(�ص�����)
+        Input:	
+        Output:	
+        Return:	
+        **********************************************************/
+        public delegate int MESSCALLBACKNEW(int lCommand, string sDVRIP, string pBuf, uint dwBufLen, ushort dwLinkDVRPort);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetDVRMessCallBack_NEW(MESSCALLBACKNEW fMessCallBack_NEW);
+
+        /*********************************************************
+        Function:	MESSAGECALLBACK
+        Desc:		(�ص�����)
+        Input:	
+        Output:	
+        Return:	
+        **********************************************************/
+        public delegate int MESSAGECALLBACK(int lCommand, System.IntPtr sDVRIP, System.IntPtr pBuf, uint dwBufLen, uint dwUser);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetDVRMessageCallBack(MESSAGECALLBACK fMessageCallBack, uint dwUser);
+
+
+        /*********************************************************
+        Function:	MSGCallBack
+        Desc:		(�ص�����)
+        Input:	
+        Output:	
+        Return:	
+        **********************************************************/
+        public delegate void MSGCallBack(int lCommand, ref NET_DVR_ALARMER pAlarmer, IntPtr pAlarmInfo, uint dwBufLen, IntPtr pUser);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetDVRMessageCallBack_V30(MSGCallBack fMessageCallBack, IntPtr pUser);
+
+        public delegate bool MSGCallBack_V31(int lCommand, ref NET_DVR_ALARMER pAlarmer, IntPtr pAlarmInfo, uint dwBufLen, IntPtr pUser);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetDVRMessageCallBack_V31(MSGCallBack_V31 fMessageCallBack, IntPtr pUser);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetSDKLocalCfg(int enumType, IntPtr lpInBuff);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetSDKLocalCfg(int enumType, IntPtr lpOutBuff);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetConnectTime(uint dwWaitTime, uint dwTryTimes);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetReconnect(uint dwInterval, int bEnableRecon);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetLocalIP(byte[] strIP, ref uint pValidNum, ref Boolean pEnableBind);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetValidIP(uint dwIPIndex, Boolean bEnableBind);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern uint NET_DVR_GetSDKVersion();
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern uint NET_DVR_GetSDKBuildVersion();
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern Int32 NET_DVR_IsSupport();
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_StartListen(string sLocalIP, ushort wLocalPort);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_StopListen();
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_StartListen_V30(String sLocalIP, ushort wLocalPort, MSGCallBack DataCallback, IntPtr pUserData);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_StopListen_V30(Int32 lListenHandle);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern Int32 NET_DVR_Login(string sDVRIP, ushort wDVRPort, string sUserName, string sPassword, ref NET_DVR_DEVICEINFO lpDeviceInfo);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_Logout(int iUserID);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern uint NET_DVR_GetLastError();
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern IntPtr NET_DVR_GetErrorMsg(ref int pErrorNo);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetShowMode(uint dwShowType, uint colorKey);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetDVRIPByResolveSvr(string sServerIP, ushort wServerPort, string sDVRName, ushort wDVRNameLen, string sDVRSerialNumber, ushort wDVRSerialLen, IntPtr pGetIP);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetDVRIPByResolveSvr_EX(string sServerIP, ushort wServerPort, byte[] sDVRName, ushort wDVRNameLen, byte[] sDVRSerialNumber, ushort wDVRSerialLen, byte[] sGetIP, ref uint dwPort);
+        //Ԥ����ؽӿ�
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern Int32 NET_DVR_RealPlay(int iUserID, ref NET_DVR_CLIENTINFO lpClientInfo);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern Int32 NET_SDK_RealPlay(int iUserLogID, ref NET_DVR_CLIENTINFO lpDVRClientInfo);
+        /*********************************************************
+		Function:	REALDATACALLBACK
+		Desc:		Ԥ���ص�
+		Input:	lRealHandle ��ǰ��Ԥ����� 
+				dwDataType ��������
+				pBuffer ������ݵĻ�����ָ�� 
+				dwBufSize ��������С 
+				pUser �û����� 
+		Output:	
+		Return:	void
+		**********************************************************/
+        public delegate void REALDATACALLBACK(Int32 lRealHandle, UInt32 dwDataType, IntPtr pBuffer, UInt32 dwBufSize, IntPtr pUser);
+        [DllImport(@".\HCNetSDK.dll")]
+
+        /*********************************************************
+        Function:	NET_DVR_RealPlay_V30
+        Desc:		ʵʱԤ����
+        Input:	lUserID [in] NET_DVR_Login()��NET_DVR_Login_V30()�ķ���ֵ 
+                lpClientInfo [in] Ԥ������ 
+                cbRealDataCallBack [in] �������ݻص����� 
+                pUser [in] �û����� 
+                bBlocked [in] �������������Ƿ�������0����1���� 
+        Output:	
+        Return:	1��ʾʧ�ܣ�����ֵ��ΪNET_DVR_StopRealPlay�Ⱥ����ľ������
+        **********************************************************/
+        public static extern int NET_DVR_RealPlay_V30(int iUserID, ref NET_DVR_CLIENTINFO lpClientInfo, REALDATACALLBACK fRealDataCallBack_V30, IntPtr pUser, UInt32 bBlocked);
+
+        /*********************************************************
+        Function:	NET_DVR_RealPlay_V40
+        Desc:		ʵʱԤ����չ�ӿڡ�
+        Input:	lUserID [in] NET_DVR_Login()��NET_DVR_Login_V30()�ķ���ֵ 
+                lpPreviewInfo [in] Ԥ������ 
+                fRealDataCallBack_V30 [in] �������ݻص����� 
+                pUser [in] �û����� 
+        Output:	
+        Return:	1��ʾʧ�ܣ�����ֵ��ΪNET_DVR_StopRealPlay�Ⱥ����ľ������
+        **********************************************************/
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_RealPlay_V40(int iUserID, ref NET_DVR_PREVIEWINFO lpPreviewInfo, REALDATACALLBACK fRealDataCallBack_V30, IntPtr pUser);
+
+       // [DllImport(@".\HCNetSDK.dll")]
+       // public static extern int NET_DVR_GetRealPlayerIndex(int lRealHandle);
+        /*********************************************************
+		Function:	NET_DVR_StopRealPlay
+		Desc:		ֹͣԤ����
+		Input:	lRealHandle [in] Ԥ�������NET_DVR_RealPlay����NET_DVR_RealPlay_V30�ķ���ֵ 
+		Output:	
+		Return:	
+		**********************************************************/
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_StopRealPlay(int iRealHandle);
+
+        /*********************************************************
+        Function:	DRAWFUN
+        Desc:		(�ص�����)
+        Input:	
+        Output:	
+        Return:	
+        **********************************************************/
+        public delegate void DRAWFUN(int lRealHandle, IntPtr hDc, uint dwUser);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_RigisterDrawFun(int lRealHandle, DRAWFUN fDrawFun, uint dwUser);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetPlayerBufNumber(Int32 lRealHandle, uint dwBufNum);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_ThrowBFrame(Int32 lRealHandle, uint dwNum);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetAudioMode(uint dwMode);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_OpenSound(Int32 lRealHandle);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_CloseSound();
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_OpenSoundShare(Int32 lRealHandle);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_CloseSoundShare(Int32 lRealHandle);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_Volume(Int32 lRealHandle, ushort wVolume);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SaveRealData(Int32 lRealHandle, string sFileName);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_StopSaveRealData(Int32 lRealHandle);
+
+        /*********************************************************
+        Function:	REALDATACALLBACK
+        Desc:		(�ص�����)
+        Input:	
+        Output:	
+        Return:	
+        **********************************************************/
+        public delegate void SETREALDATACALLBACK(int lRealHandle, uint dwDataType, IntPtr pBuffer, uint dwBufSize, uint dwUser);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetRealDataCallBack(int lRealHandle, SETREALDATACALLBACK fRealDataCallBack, uint dwUser);
+
+        /*********************************************************
+        Function:	STDDATACALLBACK
+        Desc:		(�ص�����)
+        Input:	
+        Output:	
+        Return:	
+        **********************************************************/
+        public delegate void STDDATACALLBACK(int lRealHandle, uint dwDataType, ref byte pBuffer, uint dwBufSize, uint dwUser);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetStandardDataCallBack(int lRealHandle, STDDATACALLBACK fStdDataCallBack, uint dwUser);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_CapturePicture(Int32 lRealHandle, string sPicFileName);
+		
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_CapturePictureBlock(Int32 lRealHandle, string sPicFileName, int dwTimeOut);
+		
+        //��̬����I֡
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MakeKeyFrame(Int32 lUserID, Int32 lChannel);//������
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MakeKeyFrameSub(Int32 lUserID, Int32 lChannel);//������
+
+        //��̨������ؽӿ�
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetPTZCtrl(Int32 lRealHandle);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetPTZCtrl_Other(Int32 lUserID, int lChannel);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_PTZControl(Int32 lRealHandle, uint dwPTZCommand, uint dwStop);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_PTZControl_Other(Int32 lUserID, Int32 lChannel, uint dwPTZCommand, uint dwStop);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_TransPTZ(Int32 lRealHandle, string pPTZCodeBuf, uint dwBufSize);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_TransPTZ_Other(int lUserID, int lChannel, string pPTZCodeBuf, uint dwBufSize);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_PTZPreset(int lRealHandle, uint dwPTZPresetCmd, uint dwPresetIndex);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_PTZPreset_Other(int lUserID, int lChannel, uint dwPTZPresetCmd, uint dwPresetIndex);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_TransPTZ_EX(int lRealHandle, string pPTZCodeBuf, uint dwBufSize);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_PTZControl_EX(int lRealHandle, uint dwPTZCommand, uint dwStop);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_PTZPreset_EX(int lRealHandle, uint dwPTZPresetCmd, uint dwPresetIndex);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_PTZCruise(int lRealHandle, uint dwPTZCruiseCmd, byte byCruiseRoute, byte byCruisePoint, ushort wInput);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_PTZCruise_Other(int lUserID, int lChannel, uint dwPTZCruiseCmd, byte byCruiseRoute, byte byCruisePoint, ushort wInput);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_PTZCruise_EX(int lRealHandle, uint dwPTZCruiseCmd, byte byCruiseRoute, byte byCruisePoint, ushort wInput);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_PTZTrack(int lRealHandle, uint dwPTZTrackCmd);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_PTZTrack_Other(int lUserID, int lChannel, uint dwPTZTrackCmd);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_PTZTrack_EX(int lRealHandle, uint dwPTZTrackCmd);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_PTZControlWithSpeed(int lRealHandle, uint dwPTZCommand, uint dwStop, uint dwSpeed);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_PTZControlWithSpeed_Other(int lUserID, int lChannel, uint dwPTZCommand, uint dwStop, uint dwSpeed);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_PTZControlWithSpeed_EX(int lRealHandle, uint dwPTZCommand, uint dwStop, uint dwSpeed);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetPTZCruise(int lUserID, int lChannel, int lCruiseRoute, ref NET_DVR_CRUISE_RET lpCruiseRet);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_PTZMltTrack(int lRealHandle, uint dwPTZTrackCmd, uint dwTrackIndex);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_PTZMltTrack_Other(int lUserID, int lChannel, uint dwPTZTrackCmd, uint dwTrackIndex);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_PTZMltTrack_EX(int lRealHandle, uint dwPTZTrackCmd, uint dwTrackIndex);
+
+        //�ļ�������ط�
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_FindFile(int lUserID, int lChannel, uint dwFileType, ref NET_DVR_TIME lpStartTime, ref NET_DVR_TIME lpStopTime);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_FindNextFile(int lFindHandle, ref NET_DVR_FIND_DATA lpFindData);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_FindClose(int lFindHandle);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_FindNextFile_V30(int lFindHandle, ref NET_DVR_FINDDATA_V30 lpFindData);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_FindNextFile_V40(int lFindHandle, ref NET_DVR_FINDDATA_V40 lpFindData);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_FindFile_V30(int lUserID, ref NET_DVR_FILECOND pFindCond);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_FindFile_V40(int lUserID, ref NET_DVR_FILECOND_V40 pFindCond);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_FindFileByEvent_V40(int lUserID, ref NET_DVR_SEARCH_EVENT_PARAM_V40 lpSearchEventParam);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_FindNextEvent_V40(int lSearchHandle, ref NET_DVR_SEARCH_EVENT_RET_V40 lpSearchEventRet);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_FindClose_V30(int lFindHandle);
+
+        //2007-04-16���Ӳ�ѯ��������ŵ��ļ�����
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_FindNextFile_Card(int lFindHandle, ref NET_DVR_FINDDATA_CARD lpFindData);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_FindFile_Card(int lUserID, int lChannel, uint dwFileType, ref NET_DVR_TIME lpStartTime, ref NET_DVR_TIME lpStopTime);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_LockFileByName(int lUserID, string sLockFileName);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_UnlockFileByName(int lUserID, string sUnlockFileName);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_PlayBackByName(int lUserID, string sPlayBackFileName, IntPtr hWnd);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_PlayBackByTime(int lUserID, int lChannel, ref NET_DVR_TIME lpStartTime, ref NET_DVR_TIME lpStopTime, System.IntPtr hWnd);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_PlayBackByTime_V40(int lUserID, ref NET_DVR_VOD_PARA pVodPara);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_PlayBackReverseByName(int lUserID, string sPlayBackFileName, IntPtr hWnd);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_PlayBackReverseByTime_V40(int lUserID, IntPtr hWnd, ref NET_DVR_PLAYCOND pPlayCond);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_PlayBackControl(int lPlayHandle, uint dwControlCode, uint dwInValue, ref uint LPOutValue);
+        
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_PlayBackControl_V40(int lPlayHandle, uint dwControlCode, IntPtr lpInBuffer, uint dwInValue, IntPtr lpOutBuffer, ref uint LPOutValue);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_StopPlayBack(int lPlayHandle);
+
+        /*********************************************************
+        Function:	PLAYDATACALLBACK
+        Desc:		(�ص�����)
+        Input:	
+        Output:	
+        Return:	
+        **********************************************************/
+        public delegate void PLAYDATACALLBACK(int lPlayHandle, uint dwDataType, IntPtr pBuffer, uint dwBufSize, uint dwUser);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetPlayDataCallBack(int lPlayHandle, PLAYDATACALLBACK fPlayDataCallBack, uint dwUser);
+
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_PlayBackSaveData(int lPlayHandle, string sFileName);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_StopPlayBackSave(int lPlayHandle);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetPlayBackOsdTime(int lPlayHandle, ref NET_DVR_TIME lpOsdTime);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_PlayBackCaptureFile(int lPlayHandle, string sFileName);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_GetFileByName(int lUserID, string sDVRFileName, string sSavedFileName);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_GetFileByTime(int lUserID, int lChannel, ref NET_DVR_TIME lpStartTime, ref NET_DVR_TIME lpStopTime, string sSavedFileName);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_GetFileByTime_V40(int lUserID, string sSavedFileName, ref NET_DVR_PLAYCOND pDownloadCond);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_StopGetFile(int lFileHandle);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_GetDownloadPos(int lFileHandle);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_GetPlayBackPos(int lPlayHandle);
+		
+		//ͼƬ����
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_FindPicture(int lUserID, ref NET_DVR_FIND_PICTURE_PARAM pFindParam);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_FindNextPicture_V50(int lFindHandle, ref NET_DVR_FIND_PICTURE_V50 lpFindData);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_CloseFindPicture(int lFindHandle);
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetPicture(int lUserID, String sDVRFileName, String sSavedFileName);
+
+        //����
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_Upgrade(int lUserID, string sFileName);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_GetUpgradeState(int lUpgradeHandle);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_GetUpgradeProgress(int lUpgradeHandle);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_CloseUpgradeHandle(int lUpgradeHandle);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetNetworkEnvironment(uint dwEnvironmentLevel);
+
+        //Զ�̸�ʽ��Ӳ��
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_FormatDisk(int lUserID, int lDiskNumber);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetFormatProgress(int lFormatHandle, ref int pCurrentFormatDisk, ref int pCurrentDiskPos, ref int pFormatStatic);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_CloseFormatHandle(int lFormatHandle);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetIPCProtoList(int lUserID, ref NET_DVR_IPC_PROTO_LIST lpProtoList);
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetIPCProtoList_V41(int lUserID, ref NET_DVR_IPC_PROTO_LIST_V41 lpProtoList);
+
+        //����
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_SetupAlarmChan(int lUserID);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_CloseAlarmChan(int lAlarmHandle);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_SetupAlarmChan_V30(int lUserID);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_SetupAlarmChan_V41(int lUserID, ref NET_DVR_SETUPALARM_PARAM lpSetupParam);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_CloseAlarmChan_V30(int lAlarmHandle);
+
+        //�����Խ�
+        /*********************************************************
+        Function:	VOICEDATACALLBACK
+        Desc:		(�ص�����)
+        Input:	
+        Output:	
+        Return:	
+        **********************************************************/
+        public delegate void VOICEDATACALLBACK(int lVoiceComHandle, string pRecvDataBuffer, uint dwBufSize, byte byAudioFlag, uint dwUser);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_StartVoiceCom(int lUserID, VOICEDATACALLBACK fVoiceDataCallBack, uint dwUser);
+
+        /*********************************************************
+        Function:	VOICEDATACALLBACKV30
+        Desc:		(�ص�����)
+        Input:	
+        Output:	
+        Return:	
+        **********************************************************/
+        public delegate void VOICEDATACALLBACKV30(int lVoiceComHandle, IntPtr pRecvDataBuffer, uint dwBufSize, byte byAudioFlag, System.IntPtr pUser);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_StartVoiceCom_V30(int lUserID, uint dwVoiceChan, bool bNeedCBNoEncData, VOICEDATACALLBACKV30 fVoiceDataCallBack, IntPtr pUser);
+
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetVoiceComClientVolume(int lVoiceComHandle, ushort wVolume);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_StopVoiceCom(int lVoiceComHandle);
+
+        //����ת��
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_StartVoiceCom_MR(int lUserID, VOICEDATACALLBACK fVoiceDataCallBack, uint dwUser);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_StartVoiceCom_MR_V30(int lUserID, uint dwVoiceChan, VOICEDATACALLBACKV30 fVoiceDataCallBack, IntPtr pUser);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_VoiceComSendData(int lVoiceComHandle, string pSendBuf, uint dwBufSize);
+
+        //�����㲥
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_ClientAudioStart();
+
+        /*********************************************************
+        Function:	VOICEAUDIOSTART
+        Desc:		(�ص�����)
+        Input:	
+        Output:	
+        Return:	
+        **********************************************************/
+        public delegate void VOICEAUDIOSTART(string pRecvDataBuffer, uint dwBufSize, IntPtr pUser);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_ClientAudioStart_V30(VOICEAUDIOSTART fVoiceAudioStart, IntPtr pUser);
+
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_ClientAudioStop();
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_AddDVR(int lUserID);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_AddDVR_V30(int lUserID, uint dwVoiceChan);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_DelDVR(int lUserID);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_DelDVR_V30(int lVoiceHandle);
+
+
+        //͸��ͨ������
+        /*********************************************************
+        Function:	SERIALDATACALLBACK
+        Desc:		(�ص�����)
+        Input:	
+        Output:	
+        Return:	
+        **********************************************************/
+        public delegate void SERIALDATACALLBACK(int lSerialHandle, string pRecvDataBuffer, uint dwBufSize, uint dwUser);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SerialStart(int lUserID, int lSerialPort, SERIALDATACALLBACK fSerialDataCallBack, uint dwUser);
+
+        //485��Ϊ͸��ͨ��ʱ����Ҫָ��ͨ���ţ���Ϊ��ͬͨ����485�����ÿ��Բ�ͬ(���粨����)
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SerialSend(int lSerialHandle, int lChannel, string pSendBuf, uint dwBufSize);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SerialStop(int lSerialHandle);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SendTo232Port(int lUserID, string pSendBuf, uint dwBufSize);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SendToSerialPort(int lUserID, uint dwSerialPort, uint dwSerialIndex, string pSendBuf, uint dwBufSize);
+
+        //���� nBitrate = 16000
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern System.IntPtr NET_DVR_InitG722Decoder(int nBitrate);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern void NET_DVR_ReleaseG722Decoder(IntPtr pDecHandle);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_DecodeG722Frame(IntPtr pDecHandle, ref byte pInBuffer, ref byte pOutBuffer);
+
+        //����
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern IntPtr NET_DVR_InitG722Encoder();
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_EncodeG722Frame(IntPtr pEncodeHandle, ref byte pInBuffer, ref byte pOutBuffer);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern void NET_DVR_ReleaseG722Encoder(IntPtr pEncodeHandle);
+
+        //Զ�̿��Ʊ�����ʾ
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_ClickKey(int lUserID, int lKeyIndex);
+
+        //Զ�̿����豸���ֶ�¼��
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_StartDVRRecord(int lUserID, int lChannel, int lRecordType);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_StopDVRRecord(int lUserID, int lChannel);
+
+        //���뿨
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_InitDevice_Card(ref int pDeviceTotalChan);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_ReleaseDevice_Card();
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_InitDDraw_Card(IntPtr hParent, uint colorKey);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_ReleaseDDraw_Card();
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_RealPlay_Card(int lUserID, ref NET_DVR_CARDINFO lpCardInfo, int lChannelNum);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_ResetPara_Card(int lRealHandle, ref NET_DVR_DISPLAY_PARA lpDisplayPara);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_RefreshSurface_Card();
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_ClearSurface_Card();
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_RestoreSurface_Card();
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_OpenSound_Card(int lRealHandle);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_CloseSound_Card(int lRealHandle);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetVolume_Card(int lRealHandle, ushort wVolume);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_AudioPreview_Card(int lRealHandle, int bEnable);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_GetCardLastError_Card();
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern System.IntPtr NET_DVR_GetChanHandle_Card(int lRealHandle);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_CapturePicture_Card(int lRealHandle, string sPicFileName);
+
+        //��ȡ���뿨���кŴ˽ӿ���Ч������GetBoardDetail�ӿڻ��(2005-12-08֧��)
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetSerialNum_Card(int lChannelNum, ref uint pDeviceSerialNo);
+
+        //��־
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_FindDVRLog(int lUserID, int lSelectMode, uint dwMajorType, uint dwMinorType, ref NET_DVR_TIME lpStartTime, ref NET_DVR_TIME lpStopTime);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_FindNextLog(int lLogHandle, ref NET_DVR_LOG lpLogData);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_FindLogClose(int lLogHandle);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_FindDVRLog_V30(int lUserID, int lSelectMode, uint dwMajorType, uint dwMinorType, ref NET_DVR_TIME lpStartTime, ref NET_DVR_TIME lpStopTime, bool bOnlySmart);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_FindNextLog_V30(int lLogHandle, ref NET_DVR_LOG_V30 lpLogData);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_FindLogClose_V30(int lLogHandle);
+
+        //��ֹ2004��8��5��,��113���ӿ�
+        //ATM DVR
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_FindFileByCard(int lUserID, int lChannel, uint dwFileType, int nFindType, ref byte sCardNumber, ref NET_DVR_TIME lpStartTime, ref NET_DVR_TIME lpStopTime);
+
+
+        //2005-09-15
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_CaptureJPEGPicture(int lUserID, int lChannel, ref NET_DVR_JPEGPARA lpJpegPara, string sPicFileName);
+
+        //JPEGץͼ���ڴ�
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_CaptureJPEGPicture_NEW(int lUserID, int lChannel, ref NET_DVR_JPEGPARA lpJpegPara, byte[] sJpegPicBuffer, uint dwPicSize, ref uint lpSizeReturned);
+
+        //2006-02-16
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_GetRealPlayerIndex(int lRealHandle);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_GetPlayBackPlayerIndex(int lPlayHandle);
+
+
+        [DllImportAttribute(@".\HCNetSDK.dll")]
+        //����ʶ���ϴ��ļ���������
+        public static extern Int32 NET_DVR_UploadSend(int lUploadHandle, ref NET_DVR_SEND_PARAM_IN pstruSendParamIN, IntPtr lpOutBuffer);
+
+        [DllImportAttribute(@".\HCNetSDK.dll")]
+        //����ʶ���ϴ��ļ�
+        public static extern Int32 NET_DVR_UploadFile_V40(int lUserID, uint dwUploadType, IntPtr lpInBuffer, uint dwInBufferSize, string sFileName, IntPtr lpOutBuffer, uint dwOutBufferSize);
+
+        [DllImportAttribute(@".\HCNetSDK.dll")]
+        public static extern Int32 NET_DVR_GetUploadState(int lUploadHandle, ref uint pProgress);
+
+        //��ȡ��ǰ�ϴ��Ľ����Ϣ��
+        [DllImportAttribute(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetUploadResult(int lUploadHandle, IntPtr lpOutBuffer, uint dwOutBufferSize);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_UploadClose(int lUploadHandle);
+
+
+
+        //2006-08-28 704-640 ��������
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetScaleCFG(int lUserID, uint dwScale);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetScaleCFG(int lUserID, ref uint lpOutScale);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetScaleCFG_V30(int lUserID, ref NET_DVR_SCALECFG pScalecfg);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetScaleCFG_V30(int lUserID, ref NET_DVR_SCALECFG pScalecfg);
+
+        //2006-08-28 ATM���˿�����
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetATMPortCFG(int lUserID, ushort wATMPort);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetATMPortCFG(int lUserID, ref ushort LPOutATMPort);
+
+        //2006-11-10 ֧���Կ��������
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_InitDDrawDevice();
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_ReleaseDDrawDevice();
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_GetDDrawDeviceTotalNums();
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetDDrawDevice(int lPlayPort, uint nDeviceNum);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_PTZSelZoomIn(int lRealHandle, ref NET_DVR_POINT_FRAME pStruPointFrame);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_PTZSelZoomIn_EX(int lUserID, int lChannel, ref NET_DVR_POINT_FRAME pStruPointFrame);
+
+        //�����豸DS-6001D/DS-6001F
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_StartDecode(int lUserID, int lChannel, ref NET_DVR_DECODERINFO lpDecoderinfo);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_StopDecode(int lUserID, int lChannel);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetDecoderState(int lUserID, int lChannel, ref NET_DVR_DECODERSTATE lpDecoderState);
+
+        //2005-08-01
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetDecInfo(int lUserID, int lChannel, ref NET_DVR_DECCFG lpDecoderinfo);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetDecInfo(int lUserID, int lChannel, ref NET_DVR_DECCFG lpDecoderinfo);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetDecTransPort(int lUserID, ref NET_DVR_PORTCFG lpTransPort);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetDecTransPort(int lUserID, ref NET_DVR_PORTCFG lpTransPort);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_DecPlayBackCtrl(int lUserID, int lChannel, uint dwControlCode, uint dwInValue, ref uint LPOutValue, ref NET_DVR_PLAYREMOTEFILE lpRemoteFileInfo);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_StartDecSpecialCon(int lUserID, int lChannel, ref NET_DVR_DECCHANINFO lpDecChanInfo);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_StopDecSpecialCon(int lUserID, int lChannel, ref NET_DVR_DECCHANINFO lpDecChanInfo);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_DecCtrlDec(int lUserID, int lChannel, uint dwControlCode);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_DecCtrlScreen(int lUserID, int lChannel, uint dwControl);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetDecCurLinkStatus(int lUserID, int lChannel, ref NET_DVR_DECSTATUS lpDecStatus);
+
+        //��·������
+        //2007-11-30 V211֧�����½ӿ� //11
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixStartDynamic(int lUserID, uint dwDecChanNum, ref NET_DVR_MATRIX_DYNAMIC_DEC lpDynamicInfo);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixStopDynamic(int lUserID, uint dwDecChanNum);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixGetDecChanInfo(int lUserID, uint dwDecChanNum, ref NET_DVR_MATRIX_DEC_CHAN_INFO lpInter);
+
+        [DllImport(@"..\bin\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixGetDecChanInfo_V41(int lUserID, uint dwDecChanNum, ref NET_DVR_MATRIX_DEC_CHAN_INFO_V41 lpOuter);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixSetLoopDecChanInfo(int lUserID, uint dwDecChanNum, ref NET_DVR_MATRIX_LOOP_DECINFO lpInter);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixGetLoopDecChanInfo(int lUserID, uint dwDecChanNum, ref NET_DVR_MATRIX_LOOP_DECINFO lpInter);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixSetLoopDecChanEnable(int lUserID, uint dwDecChanNum, uint dwEnable);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixGetLoopDecChanEnable(int lUserID, uint dwDecChanNum, ref uint lpdwEnable);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixGetLoopDecEnable(int lUserID, ref uint lpdwEnable);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixSetDecChanEnable(int lUserID, uint dwDecChanNum, uint dwEnable);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixGetDecChanEnable(int lUserID, uint dwDecChanNum, ref uint lpdwEnable);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixGetDecChanStatus(int lUserID, uint dwDecChanNum, ref NET_DVR_MATRIX_DEC_CHAN_STATUS lpInter);
+
+        //2007-12-22 ����֧�ֽӿ� //18
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixSetTranInfo(int lUserID, ref NET_DVR_MATRIX_TRAN_CHAN_CONFIG lpTranInfo);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixGetTranInfo(int lUserID, ref NET_DVR_MATRIX_TRAN_CHAN_CONFIG lpTranInfo);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixSetRemotePlay(int lUserID, uint dwDecChanNum, ref NET_DVR_MATRIX_DEC_REMOTE_PLAY lpInter);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixSetRemotePlayControl(int lUserID, uint dwDecChanNum, uint dwControlCode, uint dwInValue, ref uint LPOutValue);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixGetRemotePlayStatus(int lUserID, uint dwDecChanNum, ref NET_DVR_MATRIX_DEC_REMOTE_PLAY_STATUS lpOuter);
+
+        //2009-4-13 ����
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixStartDynamic_V30(int lUserID, uint dwDecChanNum, ref NET_DVR_PU_STREAM_CFG lpDynamicInfo);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixStartDynamic_V41(int lUserID, uint dwDecChanNum, ref NET_DVR_PU_STREAM_CFG_V41 lpDynamicInfo);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixSetLoopDecChanInfo_V30(int lUserID, uint dwDecChanNum, ref NET_DVR_MATRIX_LOOP_DECINFO_V30 lpInter);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixGetLoopDecChanInfo_V30(int lUserID, uint dwDecChanNum, ref NET_DVR_MATRIX_LOOP_DECINFO_V30 lpInter);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixGetDecChanInfo_V30(int lUserID, uint dwDecChanNum, ref NET_DVR_MATRIX_DEC_CHAN_INFO_V30 lpInter);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixSetTranInfo_V30(int lUserID, ref NET_DVR_MATRIX_TRAN_CHAN_CONFIG_V30 lpTranInfo);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixGetTranInfo_V30(int lUserID, ref NET_DVR_MATRIX_TRAN_CHAN_CONFIG_V30 lpTranInfo);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixGetDisplayCfg(int lUserID, uint dwDispChanNum, ref NET_DVR_VGA_DISP_CHAN_CFG lpDisplayCfg);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixSetDisplayCfg(int lUserID, uint dwDispChanNum, ref NET_DVR_VGA_DISP_CHAN_CFG lpDisplayCfg);
+
+        [DllImport(@"..\bin\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixGetDisplayCfg_V41(int lUserID, uint dwDispChanNum, ref NET_DVR_MATRIX_VOUTCFG lpDisplayCfg);
+
+        [DllImport(@"..\bin\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixSetDisplayCfg_V41(int lUserID, uint dwDispChanNum, ref NET_DVR_MATRIX_VOUTCFG lpDisplayCfg);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_MatrixStartPassiveDecode(int lUserID, uint dwDecChanNum, ref NET_DVR_MATRIX_PASSIVEMODE lpPassiveMode);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixSendData(int lPassiveHandle, System.IntPtr pSendBuf, uint dwBufSize);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixStopPassiveDecode(int lPassiveHandle);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_UploadLogo(int lUserID, uint dwDispChanNum, ref NET_DVR_DISP_LOGOCFG lpDispLogoCfg, System.IntPtr sLogoBuffer);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_PicUpload(int lUserID, String sFileName, ref NET_DVR_PICTURECFG lpPictureCfg);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_GetPicUploadProgress(int lUploadHandle);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_CloseUploadHandle(int lUploadHandle);  
+   
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_GetPicUploadState(int lUploadHandle);
+
+        public const int NET_DVR_SHOWLOGO = 1;/*��ʾLOGO*/
+        public const int NET_DVR_HIDELOGO = 2;/*����LOGO*/
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_LogoSwitch(int lUserID, uint dwDecChan, uint dwLogoSwitch);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixGetDeviceStatus(int lUserID, ref NET_DVR_DECODER_WORK_STATUS lpDecoderCfg);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetInputSignalList_V40(int lUserID, uint dwDevNum, ref NET_DVR_INPUT_SIGNAL_LIST lpInputSignalList);
+
+        public const int DISP_CMD_ENLARGE_WINDOW = 1;	/*��ʾͨ���Ŵ�ij������*/
+        public const int DISP_CMD_RENEW_WINDOW = 2;	/*��ʾͨ�����ڻ�ԭ*/
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixDiaplayControl(int lUserID, uint dwDispChanNum, uint dwDispChanCmd, uint dwCmdParam);
+
+        //end
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_RefreshPlay(int lPlayHandle);
+
+        //�ָ�Ĭ��ֵ
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_RestoreConfig(int lUserID);
+
+        //�������
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SaveConfig(int lUserID);
+
+        //����
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_RebootDVR(int lUserID);
+
+        //�ر�DVR
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_ShutDownDVR(int lUserID);
+
+        //�������� begin
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetDVRConfig(int lUserID, uint dwCommand, int lChannel, IntPtr lpOutBuffer, uint dwOutBufferSize, ref uint lpBytesReturned);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetDVRConfig(int lUserID, uint dwCommand, int lChannel, System.IntPtr lpInBuffer, uint dwInBufferSize);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetDVRWorkState_V30(int lUserID, IntPtr pWorkState);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetDVRWorkState(int lUserID, ref NET_DVR_WORKSTATE lpWorkState);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetVideoEffect(int lUserID, int lChannel, uint dwBrightValue, uint dwContrastValue, uint dwSaturationValue, uint dwHueValue);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetVideoEffect(int lUserID, int lChannel, ref uint pBrightValue, ref uint pContrastValue, ref uint pSaturationValue, ref uint pHueValue);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_ClientGetframeformat(int lUserID, ref NET_DVR_FRAMEFORMAT lpFrameFormat);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_ClientSetframeformat(int lUserID, ref NET_DVR_FRAMEFORMAT lpFrameFormat);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetAtmProtocol(int lUserID, ref NET_DVR_ATM_PROTOCOL lpAtmProtocol);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetAlarmOut_V30(int lUserID, IntPtr lpAlarmOutState);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetAlarmOut(int lUserID, ref NET_DVR_ALARMOUTSTATUS lpAlarmOutState);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetAlarmOut(int lUserID, int lAlarmOutPort, int lAlarmOutStatic);
+
+        //��ȡUPNP�˿�ӳ��״̬
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetUpnpNatState(int lUserID, ref NET_DVR_UPNP_NAT_STATE lpState);
+
+        //��Ƶ��������
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_ClientSetVideoEffect(int lRealHandle, uint dwBrightValue, uint dwContrastValue, uint dwSaturationValue, uint dwHueValue);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_ClientGetVideoEffect(int lRealHandle, ref uint pBrightValue, ref uint pContrastValue, ref uint pSaturationValue, ref uint pHueValue);
+
+        //�����ļ�
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetConfigFile(int lUserID, string sFileName);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetConfigFile(int lUserID, string sFileName);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetConfigFile_V30(int lUserID, string sOutBuffer, uint dwOutSize, ref uint pReturnSize);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetConfigFile_EX(int lUserID, string sOutBuffer, uint dwOutSize);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetConfigFile_EX(int lUserID, string sInBuffer, uint dwInSize);
+
+        //������־�ļ�д��ӿ�
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetLogToFile(int bLogEnable, string strLogDir, bool bAutoDel);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetSDKState(ref NET_DVR_SDKSTATE pSDKState);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetSDKAbility(ref NET_DVR_SDKABL pSDKAbl);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetPTZProtocol(int lUserID, ref NET_DVR_PTZCFG pPtzcfg);
+
+        //ǰ�������
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_LockPanel(int lUserID);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_UnLockPanel(int lUserID);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetRtspConfig(int lUserID, uint dwCommand, ref NET_DVR_RTSPCFG lpInBuffer, uint dwInBufferSize);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetRtspConfig(int lUserID, uint dwCommand, ref NET_DVR_RTSPCFG lpOutBuffer, uint dwOutBufferSize);
+
+        //��Ƶ�ۺ�ƽ̨
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixGetSceneCfg(int lUserID, uint dwSceneNum, ref NET_DVR_MATRIX_SCENECFG lpSceneCfg);
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_MatrixSetSceneCfg(int lUserID, uint dwSceneNum, ref NET_DVR_MATRIX_SCENECFG lpSceneCfg);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetRealHeight(int lUserID, int lChannel, ref NET_VCA_LINE lpLine, ref Single lpHeight);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetRealLength(int lUserID, int lChannel, ref NET_VCA_LINE lpLine, ref Single lpLength);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SaveRealData_V30(int lRealHandle, uint dwTransType, string sFileName);
+
+        //Win32���
+        //[DllImport(@".\HCNetSDK.dll")]
+        //public static extern bool NET_DVR_EncodeG711Frame(uint iType, ref byte pInBuffer, ref byte pOutBuffer);
+       
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern IntPtr NET_DVR_InitG711Encoder(ref NET_DVR_AUDIOENC_INFO enc_info);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_EncodeG711Frame(IntPtr handle, ref NET_DVR_AUDIOENC_PROCESS_PARAM p_enc_proc_param);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_ReleaseG711Encoder(IntPtr pEncodeHandle);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_DecodeG711Frame(uint iType, ref byte pInBuffer, ref byte pOutBuffer);
+
+        //2009-7-22 end  
+
+        //�ʼ�������� 9000_1.1
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_EmailTest(int lUserID);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_FindFileByEvent(int lUserID, ref NET_DVR_SEARCH_EVENT_PARAM lpSearchEventParam);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_FindNextEvent(int lSearchHandle, ref NET_DVR_SEARCH_EVENT_RET lpSearchEventRet);
+
+        /*********************************************************
+        Function:	NET_DVR_Login_V30
+        Desc:		
+        Input:	sDVRIP [in] �豸IP��ַ 
+                wServerPort [in] �豸�˿ں� 
+                sUserName [in] ��¼���û��� 
+                sPassword [in] �û����� 
+        Output:	lpDeviceInfo [out] �豸��Ϣ 
+        Return:	-1��ʾʧ�ܣ�����ֵ��ʾ���ص��û�IDֵ
+        **********************************************************/
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern Int32 NET_DVR_Login_V30(string sDVRIP, Int32 wDVRPort, string sUserName, string sPassword, ref NET_DVR_DEVICEINFO_V30 lpDeviceInfo);
+
+        [DllImport(@"HCNetSDK.dll")]
+        public static extern int NET_DVR_Login_V40(ref NET_DVR_USER_LOGIN_INFO pLoginInfo, ref NET_DVR_DEVICEINFO_V40 lpDeviceInfo);
+        /*********************************************************
+        Function:	NET_DVR_Logout_V30
+        Desc:		�û�ע���豸��
+        Input:	lUserID [in] �û�ID��
+        Output:	
+        Return:	TRUE��ʾ�ɹ���FALSE��ʾʧ��
+        **********************************************************/
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_Logout_V30(Int32 lUserID);
+
+        [DllImportAttribute(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_FindNextLog_MATRIX(int iLogHandle, ref NET_DVR_LOG_MATRIX lpLogData);
+
+
+        [DllImportAttribute(@".\HCNetSDK.dll")]
+        public static extern int NET_DVR_FindDVRLog_Matrix(int iUserID, int lSelectMode, uint dwMajorType, uint dwMinorType, ref tagVEDIOPLATLOG lpVedioPlatLog, ref NET_DVR_TIME lpStartTime, ref NET_DVR_TIME lpStopTime);
+
+        [DllImportAttribute(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_STDXMLConfig(int iUserID, ref NET_DVR_XML_CONFIG_INPUT lpInputParam, ref NET_DVR_XML_CONFIG_OUTPUT lpOutputParam);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetDeviceConfig(int lUserID, uint dwCommand, uint dwCount, IntPtr lpInBuffer, uint dwInBufferSize, IntPtr lpStatusList, IntPtr lpOutBuffer, uint dwOutBufferSize);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetDeviceConfig(int lUserID, uint dwCommand, uint dwCount, IntPtr lpInBuffer, uint dwInBufferSize, IntPtr lpStatusList, IntPtr lpInParamBuffer, uint dwInParamBufferSize);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetDeviceConfigEx(Int32 lUserID, uint dwCommand, uint dwCount, ref NET_DVR_IN_PARAM lpInParam, ref NET_DVR_OUT_PARAM lpOutParam);
+        
+        [DllImportAttribute(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetSTDConfig(int iUserID, uint dwCommand, ref NET_DVR_STD_CONFIG lpConfigParam);
+
+        [DllImportAttribute(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetSTDConfig(int iUserID, uint dwCommand, ref NET_DVR_STD_CONFIG lpConfigParam);
+
+        public delegate void RemoteConfigCallback(uint dwType, IntPtr lpBuffer, uint dwBufLen, IntPtr pUserData);
+
+        [DllImportAttribute(@"HCNetSDK.dll")]
+        public static extern int NET_DVR_StartRemoteConfig(int lUserID, int dwCommand, IntPtr lpInBuffer, Int32 dwInBufferLen, RemoteConfigCallback cbStateCallback, IntPtr pUserData);
+        
+        [DllImportAttribute(@"HCNetSDK.dll")]
+        public static extern int NET_DVR_GetNextRemoteConfig(int lHandle, IntPtr lpOutBuff, int dwOutBuffSize);
+
+        [DllImportAttribute(@"HCNetSDK.dll")]
+        public static extern bool NET_DVR_SendRemoteConfig(int lHandle, int dwDataType, IntPtr pSendBuf, int dwBufSize);
+
+        [DllImportAttribute(@"HCNetSDK.dll")]
+        public static extern bool NET_DVR_StopRemoteConfig(int lHandle);
+
+
+        [DllImportAttribute(@"HCNetSDK.dll")]
+        public static extern bool NET_DVR_RemoteControl(int lUserID, int dwCommand, IntPtr lpInBuffer, int dwInBufferSize);
+
+        [DllImportAttribute(@"HCNetSDK.dll")]
+        public static extern bool NET_DVR_RemoteControl(int lUserID, int dwCommand, ref CHCNetSDK.NET_DVR_FACE_PARAM_CTRL_CARDNO lpInBuffer, int dwInBufferSize);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_ContinuousShoot(Int32 lUserID, ref NET_DVR_SNAPCFG lpInter);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_ManualSnap(Int32 lUserID, ref NET_DVR_MANUALSNAP lpInter, ref NET_DVR_PLATE_RESULT lpOuter);
+
+        /*********************************************************
+		Function:	NET_DVR_GetDeviceAbility
+		Desc:		
+		Input:	
+		Output:	
+		Return:	TRUE��ʾ�ɹ���FALSE��ʾʧ�ܡ�
+		**********************************************************/
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetDeviceAbility(int lUserID, uint dwAbilityType, IntPtr pInBuf, uint dwInLength, IntPtr pOutBuf, uint dwOutLength);
+
+        //����/��ȡ�����ؼ���
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetBehaviorParamKey(int lUserID, int lChannel, uint dwParameterKey, int nValue);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetBehaviorParamKey(int lUserID, int lChannel, uint dwParameterKey, ref int pValue);
+
+        //��ȡ/�����쳣��Ϊʶ��Ŀ����ӽӿ�
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetVCADrawMode(int lUserID, int lChannel, ref NET_VCA_DRAW_MODE lpDrawMode);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetVCADrawMode(int lUserID, int lChannel, ref NET_VCA_DRAW_MODE lpDrawMode);
+
+        //˫�����ģʽ���ýӿ�
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetLFTrackMode(int lUserID, int lChannel, ref NET_DVR_LF_TRACK_MODE lpTrackMode);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetLFTrackMode(int lUserID, int lChannel, ref NET_DVR_LF_TRACK_MODE lpTrackMode);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetCCDCfg(int lUserID, int lChannel, ref NET_DVR_CCD_CFG lpCCDCfg);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_SetCCDCfg(int lUserID, int lChannel, ref NET_DVR_CCD_CFG lpCCDCfg);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_GetParamSetMode(int lUserID, ref uint dwParamSetMode);
+
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_DVR_InquestStartCDW_V30(int lUserID,  ref NET_DVR_INQUEST_ROOM lpInquestRoom, bool bNotBurn);
+        #endregion
+
+        #region ��Ϣ�¼�
+        [DllImport("User32.dll", EntryPoint = "PostMessage")]
+        public static extern int PostMessage(IntPtr hWnd, int Msg, int wParam, int lParam);
+        #endregion
+
+
+        //ʶ�𳡾�
+        public enum VCA_RECOGNIZE_SCENE
+        {
+            VCA_LOW_SPEED_SCENE = 0,//����ͨ���������շ�վ��С���ſڡ�ͣ������
+            VCA_HIGH_SPEED_SCENE = 1,//����ͨ�����������ڡ����ٹ�·���ƶ�����)
+            VCA_MOBILE_CAMERA_SCENE = 2,//�ƶ������Ӧ�ã� 
+        }
+
+        //ʶ������־
+        public enum VCA_RECOGNIZE_RESULT
+        {
+            VCA_RECOGNIZE_FAILURE = 0,//ʶ��ʧ��
+            VCA_IMAGE_RECOGNIZE_SUCCESS,//ͼ��ʶ��ɹ�
+            VCA_VIDEO_RECOGNIZE_SUCCESS_OF_BEST_LICENSE,//��Ƶʶ����Ž��
+            VCA_VIDEO_RECOGNIZE_SUCCESS_OF_NEW_LICENSE,//��Ƶʶ���µij���
+            VCA_VIDEO_RECOGNIZE_FINISH_OF_CUR_LICENSE,//��Ƶʶ���ƽ���
+        }
+        
+
+        //��Ƶʶ�𴥷�����
+        public enum VCA_TRIGGER_TYPE
+        {
+            INTER_TRIGGER = 0,// ģ���ڲ�����ʶ��
+            EXTER_TRIGGER = 1,// �ⲿ�����źŴ�������Ȧ���״�ֶ������źţ�
+        }
+
+        public const int MAX_CHINESE_CHAR_NUM = 64;    // ������������
+        //���ƿɶ�̬�޸IJ���
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_PLATE_PARAM
+        {
+            public NET_VCA_RECT struSearchRect;//��������(��һ��)
+            public NET_VCA_RECT struInvalidateRect;//��Ч���������������ڲ� (��һ��)
+            public ushort wMinPlateWidth;//����������
+            public ushort wTriggerDuration;//��������֡��
+            public byte byTriggerType;//����ģʽ, VCA_TRIGGER_TYPE
+            public byte bySensitivity;//������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;//��������0
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 64, ArraySubType = UnmanagedType.I1)]
+            public byte[] byCharPriority;// �������ȼ�
+        }
+
+        /*wMinPlateWidth:�ò���Ĭ������Ϊ80���أ��ò��������ö��ڳ��ƺ������ӳ���ʶ��˵���ĵ� 
+	    ʶ����Ӱ�죬������ù�����ô��������г���С���ƾͻ�©ʶ����������г��ƿ����ձ�ϴ󣬿��԰Ѹò��������Դ󣬱��ڼ��ٶ���ٳ��ƵĴ������ڱ�������½�������Ϊ80�� �ڸ�������½�������Ϊ120
+        wTriggerDuration �� �ⲿ�����źų���֡�������京���ǴӴ����źſ�ʼʶ���֡��������ֵ�ڵ��ٳ�����������Ϊ50��100�����ٳ�����������Ϊ15��25���ƶ�ʶ��ʱ���Ҳ���ⲿ����������Ϊ15��25��������Ը����ֳ������������
+        */
+        //����ʶ������ӽṹ
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_PLATEINFO
+        {
+            public VCA_RECOGNIZE_SCENE eRecogniseScene;//ʶ�𳡾�(���ٺ͸���)
+            public NET_VCA_PLATE_PARAM struModifyParam;//���ƿɶ�̬�޸IJ���
+        }
+
+        //����ʶ�����ò���
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_PLATECFG
+        {
+            public uint dwSize;
+            public byte byPicProType;//����ʱͼƬ������ʽ 0-������ 1-�ϴ�
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;//����������Ϊ0
+            public NET_DVR_JPEGPARA struPictureParam;//ͼƬ���ṹ
+            public NET_VCA_PLATEINFO struPlateInfo;//������Ϣ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_DAYS * MAX_TIMESEGMENT_2, ArraySubType = UnmanagedType.Struct)]
+            public NET_DVR_SCHEDTIME[] struAlarmTime;//����ʱ��
+            public NET_DVR_HANDLEEXCEPTION_V30 struHandleType;//������ʽ
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_CHANNUM_V30, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRelRecordChan;//����������¼��ͨ��,Ϊ1��ʾ������ͨ��
+        }
+
+        //����ʶ�����ӽṹ
+        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+        public struct NET_VCA_PLATE_INFO
+        {
+            public VCA_RECOGNIZE_RESULT eResultFlag;//ʶ������־ 
+            public VCA_PLATE_TYPE ePlateType;//��������
+            public VCA_PLATE_COLOR ePlateColor;//������ɫ
+            public NET_VCA_RECT struPlateRect;//�����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwRes;//����������Ϊ0 
+            public uint dwLicenseLen;//���Ƴ���
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = MAX_LICENSE_LEN)]
+            public string sLicense;//���ƺ��� 
+            [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = MAX_LICENSE_LEN)]
+            public string sBelieve;//����ʶ���ַ������Ŷȣ����⵽����"��A12345", ���Ŷ�Ϊ10,20,30,40,50,60,70�����ʾ"��"����ȷ�Ŀ�����ֻ��10%��"A"�ֵ���ȷ�Ŀ�������20%
+        }
+
+        //���Ƽ����
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_PLATE_RESULT
+        {
+            public uint dwSize;//�ṹ����
+            public uint dwRelativeTime;//���ʱ��
+            public uint dwAbsTime;//����ʱ��
+            public byte byPlateNum;//���Ƹ���
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes1;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_PLATE_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_VCA_PLATE_INFO[] struPlateInfo;//������Ϣ�ṹ
+            public uint dwPicDataLen;//����ͼƬ�ij��� Ϊ0��ʾû��ͼƬ������0��ʾ�ýṹ�������ͼƬ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwRes2;//����������Ϊ0 ͼƬ�ĸ߿�
+            public System.IntPtr pImage;//ָ��ͼƬ��ָ��
+        }
+
+        //�������ܿ�
+        [DllImport(@".\HCNetSDK.dll")]
+        public static extern bool NET_VCA_RestartLib(int lUserID, int lChannel);
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_LINE_SEGMENT
+        {
+            public NET_VCA_POINT struStartPoint;//��ʾ�߶���ʱ����ʾͷ����
+            public NET_VCA_POINT struEndPoint;//��ʾ�߶���ʱ����ʾ�Ų���
+            public float fValue;//�߶�ֵ����λ��
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.I1)]
+            public byte[] byRes;
+        }
+
+        //�궨������
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_VCA_LINE_SEG_LIST
+        {
+            public uint dwSize;//�ṹ����
+            public byte bySegNum;//�궨������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = System.Runtime.InteropServices.UnmanagedType.I1)]
+            public byte[] byRes;//��������0
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = MAX_SEGMENT_NUM, ArraySubType = UnmanagedType.Struct)]
+            public NET_VCA_LINE_SEGMENT[] struSeg;
+        }      
+
+        //2009-8-18 ץ�Ļ�
+        public const int PLATE_INFO_LEN = 1024;
+        public const int PLATE_NUM_LEN = 16;
+        public const int FILE_NAME_LEN = 256;
+
+        //liscense plate result
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_PLATE_RET
+        {
+            public uint dwSize;//�ṹ����
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PLATE_NUM_LEN, ArraySubType = UnmanagedType.I1)]
+            public byte[] byPlateNum;//���ƺ�
+            public byte byVehicleType;// ������
+            public byte byTrafficLight;//0-�̵ƣ�1-���
+            public byte byPlateColor;//������ɫ
+            public byte byDriveChan;//����������
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 32, ArraySubType = UnmanagedType.I1)]
+            public byte[] byTimeInfo;/*ʱ����Ϣ*///plate_172.6.113.64_20090724155526948_197170484 
+            //Ŀǰ��17λ����ȷ��ms:20090724155526948
+            public byte byCarSpeed;/*��λkm/h*/
+            public byte byCarSpeedH;/*cm/s��8λ*/
+            public byte byCarSpeedL;/*cm/s��8λ*/
+            public byte byRes;
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = PLATE_INFO_LEN - 36, ArraySubType = UnmanagedType.I1)]
+            public byte[] byInfo;
+            public uint dwPicLen;
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct NET_DVR_CCD_CFG
+        {
+            public uint dwSize;//�ṹ����
+            public byte byBlc;/*���ⲹ��0-off; 1-on*/
+            public byte byBlcMode;/*blc����0-�Զ���1-�ϣ�2-�£�3-��4-�ң�5-�У�ע��������blcΪ on ʱ����Ч*/
+            public byte byAwb;/*�Զ���ƽ��0-�Զ�1; 1-�Զ�2; 2-�Զ�����*/
+            public byte byAgc;/*�Զ�����0-��; 1-��; 2-��; 3-��*/
+            public byte byDayNight;/*��ҹת����0 ��ɫ��1�ڰף�2�Զ�*/
+            public byte byMirror;/*����0-��;1-����;2-����;3-����*/
+            public byte byShutter;/*����0-�Զ�; 1-1/25; 2-1/50; 3-1/100; 4-1/250;5-1/500; 6-1/1k ;7-1/2k; 8-1/4k; 9-1/10k; 10-1/100k;*/
+            public byte byIrCutTime;/*IRCUT�л�ʱ�䣬5, 10, 15, 20, 25*/
+            public byte byLensType;/*��ͷ����0-���ӹ�Ȧ; 1-�Զ���Ȧ*/
+            public byte byEnVideoTrig;/*��Ƶ����ʹ�ܣ�1-֧�֣�0-��֧�֡���Ƶ����ģʽ����Ƶ�����ٶȰ���byShutter�ٶȣ�ץ��ͼƬ�Ŀ����ٶȰ���byCapShutter�ٶȣ�ץ����ɺ���Զ����ڻ���Ƶģʽ*/
+            public byte byCapShutter;/*ץ��ʱ�Ŀ����ٶȣ�1-1/25; 2-1/50; 3-1/100; 4-1/250;5-1/500; 6-1/1k ;7-1/2k; 8-1/4k; 9-1/10k; 10-1/100k; 11-1/150; 12-1/200*/
+            public byte byEnRecognise;/*1-֧��ʶ��0-��֧��ʶ��*/
+        }
+
+        [StructLayoutAttribute(LayoutKind.Sequential)]
+        public struct tagCAMERAPARAMCFG
+        {
+            public uint dwSize;
+            public uint dwPowerLineFrequencyMode;/*0-50HZ; 1-60HZ*/
+            public uint dwWhiteBalanceMode;/*0�ֶ���ƽ��; 1�Զ���ƽ��1����ΧС��; 2 �Զ���ƽ��2����Χ����2200K-15000K��;3�Զ�����3*/
+            public uint dwWhiteBalanceModeRGain;/*�ֶ���ƽ��ʱ��Ч���ֶ���ƽ�� R����*/
+            public uint dwWhiteBalanceModeBGain;/*�ֶ���ƽ��ʱ��Ч���ֶ���ƽ�� B����*/
+            public uint dwExposureMode;/*0 �ֶ��ع� 1�Զ��ع�*/
+            public uint dwExposureSet;/* 0-USERSET, 1-�Զ�x2��2-�Զ�4��3-�Զ�81/25, 4-1/50, 5-1/100, 6-1/250, 7-1/500, 8-1/750, 9-1/1000, 10-1/2000, 11-1/4000,12-1/10,000; 13-1/100,000*/
+            public uint dwExposureUserSet;/* �Զ��Զ����ع�ʱ��*/
+            public uint dwExposureTarget;/*�ֶ��ع�ʱ�� ��Χ��Manumal��Ч��΢�룩*/
+            public uint dwIrisMode;/*0 �Զ���Ȧ 1�ֶ���Ȧ*/
+            public uint dwGainLevel;/*���棺0-100*/
+            public uint dwBrightnessLevel;/*0-100*/
+            public uint dwContrastLevel;/*0-100*/
+            public uint dwSharpnessLevel;/*0-100*/
+            public uint dwSaturationLevel;/*0-100*/
+            public uint dwHueLevel;/*0-100����������*/
+            public uint dwGammaCorrectionEnabled;/*0 dsibale  1 enable*/
+            public uint dwGammaCorrectionLevel;/*0-100*/
+            public uint dwWDREnabled;/*����̬��0 dsibale  1 enable*/
+            public uint dwWDRLevel1;/*0-F*/
+            public uint dwWDRLevel2;/*0-F*/
+            public uint dwWDRContrastLevel;/*0-100*/
+            public uint dwDayNightFilterType;/*��ҹ�л���0 day,1 night,2 auto */
+            public uint dwSwitchScheduleEnabled;/*0 dsibale  1 enable,(����)*/
+            //ģʽ1(����)
+            public uint dwBeginTime;	/*0-100*/
+            public uint dwEndTime;/*0-100*/
+            //ģʽ2
+            public uint dwDayToNightFilterLevel;//0-7
+            public uint dwNightToDayFilterLevel;//0-7
+            public uint dwDayNightFilterTime;//(60��)
+            public uint dwBacklightMode;/*���ⲹ��:0 USERSET 1 UP��2 DOWN��3 LEFT��4 RIGHT��5MIDDLE*/
+            public uint dwPositionX1;//��X����1��
+            public uint dwPositionY1;//��Y����1��
+            public uint dwPositionX2;//��X����2��
+            public uint dwPositionY2;//��Y����2��
+            public uint dwBacklightLevel;/*0x0-0xF*/
+            public uint dwDigitalNoiseRemoveEnable; /*����ȥ�룺0 dsibale  1 enable*/
+            public uint dwDigitalNoiseRemoveLevel;/*0x0-0xF*/
+            public uint dwMirror; /* ����0 Left;1 Right,;2 Up;3Down */
+            public uint dwDigitalZoom;/*��������:0 dsibale  1 enable*/
+            public uint dwDeadPixelDetect;/*������,0 dsibale  1 enable*/
+            [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 20, ArraySubType = UnmanagedType.U4)]
+            public uint[] dwRes;
+        }
+
+        [StructLayout(LayoutKind.Sequential)]
+        public struct NET_DVR_SHIPSINFO
+        {
+            public float fShipsLength;           // ��ֻ���ȣ�1~1000.0m����ȷ��С�����һλ
+            public float fShipsHeight;           // ��ֻ�߶ȣ�1~1000.0m����ȷ��С�����һλ
+            public float fShipsWidth;            // ��ֻ���ȣ�1~1000.0m����ȷ��С�����һλ
+            public float fShipsSpeed;            // ��ֻ�ٶȣ�1~1000.0m/s����ȷ��С�����һλ
+            public byte byShipsDirection;        // ��ֻ����0~up,1~down,2~left,3~right
+            public byte byShipsDetState;         // ��ֻ���״̬��0~����Խ����ߣ�1~��ͷ��⣬2~��β���
+            public byte byTriggerLineID;         // �����ID
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 61)]
+            public byte[] byRes;                 // ����ֽ�
+            public NET_VCA_POLYGON struShipsRect; // ��ֻ���򣬹�һ��ֵ������ڴ�ͼ���ɼ���ͼ���ȳ���ͼ)�ķֱ���
+        }
+
+        [StructLayout(LayoutKind.Sequential)]
+        public struct NET_DVR_SHIPIMAGE_INFO
+        {
+            public uint dwShipImageLen;          // ��ֻץ��ͼƬ���������ݳ���
+            public IntPtr pXmlBuf;               // ��ֻץ��ͼƬ����������ָ��
+        }
+
+        [StructLayout(LayoutKind.Sequential)]
+        public struct NET_DVR_SHIPSDETECTION_ALARM
+        {
+            public uint dwSize;
+            public NET_VCA_DEV_INFO struDevInfo;           // �豸��Ϣ
+            public uint dwRelativeTime;                    // ���ʱ��
+            public uint dwAbsTime;                         // ����ʱ��
+            public byte byShipsNum;                        // ��ֻ����(����Խ����ߵĴ�ֻ��)
+            public byte byShipsNumHead;                    // ��ֻ����(��ͷ��⴬ֻ��)
+            public byte byShipsNumEnd;                     // ��ֻ����(��β��⴬ֻ��)
+            public byte byPicTransType;                    // ͼƬ���ݴ��䷽ʽ: 0-�����ƣ�1-url
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 20)]
+            public NET_DVR_SHIPSINFO[] struShipInfo;       // ��ֻ��Ϣ�����֧��20��
+            public uint dwPicLen;                          // �ɼ���ͼƬ����
+            public uint dwThermalPicLen;                   // �ȳ���ͼƬ����
+            public IntPtr pPicBuffer;                      // �ɼ���ͼƬ����ָ��
+            public IntPtr pThermalPicBuffer;               // �ȳ���ͼƬ����ָ��
+            public ushort wDevInfoIvmsChannelEx;           // ��NET_VCA_DEV_INFO���byIvmsChannel������ͬ���ܱ�ʾ�����ֵ
+            public byte byTimeDiffFlag;                    // ʱ���ֶ��Ƿ���Ч  0-ʱ����Ч�� 1-ʱ����Ч
+            public sbyte cTimeDifferenceH;                 // ��UTC��ʱ�Сʱ����-12 ... +14�� +��ʾ����
+            public sbyte cTimeDifferenceM;                 // ��UTC��ʱ����ӣ���-30, 30, 45�� +��ʾ����
+            public byte bySID;                             // ����ID
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)]
+            public byte[] byRes1;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 32)]
+            public byte[] szSceneName;                     // �������ƣ�������32�ַ�
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 132)]
+            public byte[] byRes;
+            public uint dwXmlLen;                          // XML͸�����ݳ���
+            public IntPtr pXmlBuf;                         // XML������Ϣָ��
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 6)]
+            public NET_DVR_SHIPIMAGE_INFO[] struShipImageInfo; // ��ֻץ��ͼƬ��Ϣ
+        }
+
+
+        public const int NET_DVR_GET_CCDPARAMCFG = 1067;       //IPC��ȡCCD��������
+        public const int NET_DVR_SET_CCDPARAMCFG = 1068;      //IPC����CCD��������  
+    }
+}
diff --git a/Models/AlarmRecord.cs b/Models/AlarmRecord.cs
new file mode 100644
index 0000000..49a6bcd
--- /dev/null
+++ b/Models/AlarmRecord.cs
@@ -0,0 +1,63 @@
+using System.Text.Json.Serialization;
+
+namespace YD_TrainingCompetition_Api.Models;
+
+/// <summary>
+/// 报警记录，包含 JSON/XML 数据和图片信息
+/// </summary>
+public sealed class AlarmRecord
+{
+    [JsonPropertyName("id")]
+    public string Id { get; set; } = Guid.NewGuid().ToString("N");
+
+    [JsonPropertyName("deviceId")]
+    public string DeviceId { get; set; } = string.Empty;
+
+    [JsonPropertyName("ip")]
+    public string Ip { get; set; } = string.Empty;
+
+    [JsonPropertyName("dataType")]
+    public string DataType { get; set; } = string.Empty; // "xml" or "json"
+
+    /// <summary>
+    /// 原始报警数据（JSON 或 XML 字符串）
+    /// </summary>
+    [JsonPropertyName("rawData")]
+    public string RawData { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 报警数据长度（字节）
+    /// </summary>
+    [JsonPropertyName("dataLength")]
+    public uint DataLength { get; set; }
+
+    /// <summary>
+    /// 附带图片数量
+    /// </summary>
+    [JsonPropertyName("pictureCount")]
+    public int PictureCount { get; set; }
+
+    /// <summary>
+    /// 图片数据（Base64 编码，仅保留最新报警的图片）
+    /// </summary>
+    [JsonPropertyName("pictures")]
+    public List<AlarmPicture> Pictures { get; set; } = new();
+
+    [JsonPropertyName("timestamp")]
+    public DateTimeOffset Timestamp { get; set; } = DateTimeOffset.UtcNow;
+}
+
+/// <summary>
+/// 报警附带图片
+/// </summary>
+public sealed class AlarmPicture
+{
+    [JsonPropertyName("fileName")]
+    public string FileName { get; set; } = string.Empty;
+
+    [JsonPropertyName("length")]
+    public uint Length { get; set; }
+
+    [JsonPropertyName("base64")]
+    public string Base64 { get; set; } = string.Empty;
+}
diff --git a/Models/CameraConfig.cs b/Models/CameraConfig.cs
new file mode 100644
index 0000000..33495a6
--- /dev/null
+++ b/Models/CameraConfig.cs
@@ -0,0 +1,33 @@
+using System.Text.Json.Serialization;
+
+namespace YD_TrainingCompetition_Api.Models;
+
+/// <summary>
+/// 摄像头连接配置
+/// </summary>
+public sealed class CameraConfig
+{
+    [JsonPropertyName("deviceId")]
+    public string DeviceId { get; set; } = string.Empty;
+
+    [JsonPropertyName("ip")]
+    public string Ip { get; set; } = string.Empty;
+
+    [JsonPropertyName("port")]
+    public ushort Port { get; set; } = 8000;
+
+    [JsonPropertyName("userName")]
+    public string UserName { get; set; } = "admin";
+
+    [JsonPropertyName("password")]
+    public string Password { get; set; } = string.Empty;
+
+    [JsonPropertyName("channel")]
+    public int Channel { get; set; } = 1;
+
+    /// <summary>
+    /// 是否启用该摄像头
+    /// </summary>
+    [JsonPropertyName("enabled")]
+    public bool Enabled { get; set; } = true;
+}
diff --git a/Models/HikvisionCameraStatus.cs b/Models/HikvisionCameraStatus.cs
new file mode 100644
index 0000000..9cbf5e5
--- /dev/null
+++ b/Models/HikvisionCameraStatus.cs
@@ -0,0 +1,36 @@
+using System.Text.Json.Serialization;
+
+namespace YD_TrainingCompetition_Api.Models;
+
+/// <summary>
+/// 海康摄像头实时状态
+/// </summary>
+public sealed class HikvisionCameraStatus
+{
+    [JsonPropertyName("deviceId")]
+    public string DeviceId { get; set; } = string.Empty;
+
+    [JsonPropertyName("ip")]
+    public string Ip { get; set; } = string.Empty;
+
+    [JsonPropertyName("online")]
+    public bool Online { get; set; }
+
+    [JsonPropertyName("armed")]
+    public bool Armed { get; set; }
+
+    [JsonPropertyName("userId")]
+    public int UserId { get; set; } = -1;
+
+    [JsonPropertyName("alarmHandle")]
+    public int AlarmHandle { get; set; } = -1;
+
+    [JsonPropertyName("lastAlarmTime")]
+    public DateTimeOffset? LastAlarmTime { get; set; }
+
+    [JsonPropertyName("lastSeen")]
+    public DateTimeOffset LastSeen { get; set; } = DateTimeOffset.UtcNow;
+
+    [JsonPropertyName("errorMessage")]
+    public string? ErrorMessage { get; set; }
+}
diff --git a/Options/HikvisionOptions.cs b/Options/HikvisionOptions.cs
new file mode 100644
index 0000000..1f1e986
--- /dev/null
+++ b/Options/HikvisionOptions.cs
@@ -0,0 +1,69 @@
+namespace YD_TrainingCompetition_Api.Options;
+
+public sealed class HikvisionOptions
+{
+    public const string SectionName = "Hikvision";
+
+    /// <summary>
+    /// 是否启用海康威视 SDK 接入
+    /// </summary>
+    public bool Enabled { get; set; } = false;
+
+    /// <summary>
+    /// SDK 日志目录
+    /// </summary>
+    public string SdkLogPath { get; set; } = "C:\\SdkLog\\";
+
+    /// <summary>
+    /// 报警数据图片分离：0-不分离(COMM_VCA_ALARM)，1-分离(COMM_ISAPI_ALARM)
+    /// </summary>
+    public byte AlarmJsonPictureSeparate { get; set; } = 1;
+
+    /// <summary>
+    /// 报警存储最大条数
+    /// </summary>
+    public int MaxAlarmRecords { get; set; } = 200;
+
+    /// <summary>
+    /// 摄像头列表
+    /// </summary>
+    public List<CameraConfigItem> Cameras { get; set; } = new();
+}
+
+public sealed class CameraConfigItem
+{
+    /// <summary>
+    /// 设备唯一标识
+    /// </summary>
+    public string DeviceId { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 摄像头 IP 地址
+    /// </summary>
+    public string Ip { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 端口号
+    /// </summary>
+    public ushort Port { get; set; } = 8000;
+
+    /// <summary>
+    /// 用户名
+    /// </summary>
+    public string UserName { get; set; } = "admin";
+
+    /// <summary>
+    /// 密码
+    /// </summary>
+    public string Password { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 通道号
+    /// </summary>
+    public int Channel { get; set; } = 1;
+
+    /// <summary>
+    /// 是否启用
+    /// </summary>
+    public bool Enabled { get; set; } = true;
+}
diff --git a/Program.cs b/Program.cs
index 314a363..bb44dea 100644
--- a/Program.cs
+++ b/Program.cs
@@ -15,6 +15,7 @@ builder.WebHost.UseUrls(listenUrls);
 builder.Services.Configure<ScoringOptions>(builder.Configuration.GetSection(ScoringOptions.SectionName));
 builder.Services.Configure<Serial24GOptions>(builder.Configuration.GetSection(Serial24GOptions.SectionName));
 builder.Services.Configure<RosterOptions>(builder.Configuration.GetSection(RosterOptions.SectionName));
+builder.Services.Configure<HikvisionOptions>(builder.Configuration.GetSection(HikvisionOptions.SectionName));
 
 builder.Services.AddControllers();
 builder.Services.AddEndpointsApiExplorer();
@@ -39,8 +40,10 @@ builder.Services.AddSingleton<IJumpProtocolParser, JumpProtocolParser>();
 builder.Services.AddSingleton<IRosterService, RosterService>();
 builder.Services.AddSingleton<IParticipantDirectory, ParticipantDirectory>();
 builder.Services.AddSingleton<ICompetitionSessionService, CompetitionSessionService>();
+builder.Services.AddSingleton<IHikvisionAlarmStore, HikvisionAlarmStore>();
 builder.Services.AddHostedService<SerialIngestWorker>();
 builder.Services.AddHostedService<CompetitionCountdownWorker>();
+builder.Services.AddHostedService<HikvisionIngestWorker>();
 
 var app = builder.Build();
 
diff --git a/Services/HikvisionAlarmStore.cs b/Services/HikvisionAlarmStore.cs
new file mode 100644
index 0000000..92f1a34
--- /dev/null
+++ b/Services/HikvisionAlarmStore.cs
@@ -0,0 +1,92 @@
+using Microsoft.Extensions.Options;
+using System.Collections.Concurrent;
+using YD_TrainingCompetition_Api.Models;
+using YD_TrainingCompetition_Api.Options;
+
+namespace YD_TrainingCompetition_Api.Services;
+
+public sealed class HikvisionAlarmStore : IHikvisionAlarmStore
+{
+    private readonly ConcurrentQueue<AlarmRecord> _alarms = new();
+    private readonly ConcurrentDictionary<string, HikvisionCameraStatus> _cameraStatuses = new(StringComparer.OrdinalIgnoreCase);
+    private readonly HikvisionOptions _options;
+    private readonly ILogger<HikvisionAlarmStore> _logger;
+    private int _alarmCount;
+
+    public HikvisionAlarmStore(IOptions<HikvisionOptions> options, ILogger<HikvisionAlarmStore> logger)
+    {
+        _options = options.Value;
+        _logger = logger;
+    }
+
+    public void Add(AlarmRecord record)
+    {
+        _alarms.Enqueue(record);
+
+        var newCount = Interlocked.Increment(ref _alarmCount);
+
+        // 超出上限则移除最旧的记录
+        while (newCount > _options.MaxAlarmRecords)
+        {
+            if (_alarms.TryDequeue(out _))
+            {
+                Interlocked.Decrement(ref _alarmCount);
+                newCount--;
+            }
+        }
+
+        _logger.LogInformation("Alarm stored: DeviceId={DeviceId}, Id={Id}, QueueSize={Size}",
+            record.DeviceId, record.Id, newCount);
+    }
+
+    public IReadOnlyCollection<AlarmRecord> GetAll()
+    {
+        return _alarms.Reverse().ToArray();
+    }
+
+    public IReadOnlyCollection<AlarmRecord> GetByDeviceId(string deviceId)
+    {
+        return _alarms
+            .Where(x => string.Equals(x.DeviceId, deviceId, StringComparison.OrdinalIgnoreCase))
+            .Reverse()
+            .ToArray();
+    }
+
+    public AlarmRecord? GetLatest()
+    {
+        return _alarms.LastOrDefault();
+    }
+
+    public AlarmRecord? GetLatestByDevice(string deviceId)
+    {
+        return _alarms
+            .LastOrDefault(x => string.Equals(x.DeviceId, deviceId, StringComparison.OrdinalIgnoreCase));
+    }
+
+    public void UpdateCameraStatus(HikvisionCameraStatus status)
+    {
+        status.LastSeen = DateTimeOffset.UtcNow;
+        _cameraStatuses[status.DeviceId] = status;
+    }
+
+    public IReadOnlyCollection<HikvisionCameraStatus> GetAllCameraStatuses()
+    {
+        return _cameraStatuses.Values
+            .OrderBy(x => x.DeviceId, StringComparer.OrdinalIgnoreCase)
+            .ToArray();
+    }
+
+    public HikvisionCameraStatus? GetCameraStatus(string deviceId)
+    {
+        return _cameraStatuses.TryGetValue(deviceId, out var status) ? status : null;
+    }
+
+    public void ClearAlarms()
+    {
+        while (_alarms.TryDequeue(out _))
+        {
+            Interlocked.Decrement(ref _alarmCount);
+        }
+        _logger.LogInformation("All alarms cleared");
+    }
+}
diff --git a/Services/HikvisionIngestWorker.cs b/Services/HikvisionIngestWorker.cs
new file mode 100644
index 0000000..958ba0d
--- /dev/null
+++ b/Services/HikvisionIngestWorker.cs
@@ -0,0 +1,382 @@
+using System.Runtime.InteropServices;
+using System.Text;
+using Microsoft.Extensions.Options;
+using YD_TrainingCompetition_Api.Hikvision;
+using YD_TrainingCompetition_Api.Models;
+using YD_TrainingCompetition_Api.Options;
+
+namespace YD_TrainingCompetition_Api.Services;
+
+public sealed class HikvisionIngestWorker : BackgroundService
+{
+    // 静态实例引用，供静态回调使用
+    private static HikvisionIngestWorker? s_instance;
+
+    private readonly ILogger<HikvisionIngestWorker> _logger;
+    private readonly IHikvisionAlarmStore _alarmStore;
+    private readonly IRealtimeNotifier _notifier;
+    private readonly HikvisionOptions _options;
+    private readonly List<CameraSession> _sessions = new();
+    private bool _sdkInitialized;
+
+    public HikvisionIngestWorker(
+        ILogger<HikvisionIngestWorker> logger,
+        IHikvisionAlarmStore alarmStore,
+        IRealtimeNotifier notifier,
+        IOptions<HikvisionOptions> options)
+    {
+        _logger = logger;
+        _alarmStore = alarmStore;
+        _notifier = notifier;
+        _options = options.Value;
+    }
+
+    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+    {
+        if (!_options.Enabled)
+        {
+            _logger.LogInformation("Hikvision SDK ingest is disabled");
+            return;
+        }
+
+        s_instance = this;
+
+        try
+        {
+            // 1. 初始化 SDK
+            if (!CHCNetSDK.NET_DVR_Init())
+            {
+                _logger.LogError("NET_DVR_Init failed, error={Error}", CHCNetSDK.NET_DVR_GetLastError());
+                return;
+            }
+            _sdkInitialized = true;
+            _logger.LogInformation("NET_DVR_Init succeeded");
+
+            // 2. 设置 SDK 日志
+            CHCNetSDK.NET_DVR_SetLogToFile(3, _options.SdkLogPath, true);
+
+            // 3. 设置本地配置：报警 JSON 图片分离
+            SetLocalConfig();
+
+            // 4. 设置报警回调
+            var callbackDelegate = new CHCNetSDK.MSGCallBack_V31(AlarmCallbackBridge);
+            CHCNetSDK.NET_DVR_SetDVRMessageCallBack_V31(callbackDelegate, IntPtr.Zero);
+            _logger.LogInformation("Alarm callback registered");
+
+            // 5. 登录所有启用的摄像头
+            foreach (var cam in _options.Cameras.Where(c => c.Enabled))
+            {
+                if (stoppingToken.IsCancellationRequested) break;
+                await LoginCameraAsync(cam, stoppingToken);
+            }
+
+            _logger.LogInformation("Hikvision ingest running, {Count} camera(s) connected", _sessions.Count);
+
+            // 6. 保持运行，直到取消
+            while (!stoppingToken.IsCancellationRequested)
+            {
+                await Task.Delay(5000, stoppingToken);
+            }
+        }
+        catch (OperationCanceledException)
+        {
+            _logger.LogInformation("Hikvision ingest worker cancelled");
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Hikvision ingest worker fatal error");
+        }
+        finally
+        {
+            await CleanupAsync();
+            s_instance = null;
+        }
+    }
+
+    private void SetLocalConfig()
+    {
+        var localCfg = new CHCNetSDK.NET_DVR_LOCAL_GENERAL_CFG
+        {
+            byAlarmJsonPictureSeparate = _options.AlarmJsonPictureSeparate
+        };
+
+        int size = Marshal.SizeOf(localCfg);
+        IntPtr ptr = Marshal.AllocHGlobal(size);
+        try
+        {
+            Marshal.StructureToPtr(localCfg, ptr, false);
+            if (!CHCNetSDK.NET_DVR_SetSDKLocalCfg(17, ptr))
+            {
+                _logger.LogWarning("NET_DVR_SetSDKLocalCfg failed, error={Error}", CHCNetSDK.NET_DVR_GetLastError());
+            }
+            else
+            {
+                _logger.LogInformation("Local config set: AlarmJsonPictureSeparate={Val}", _options.AlarmJsonPictureSeparate);
+            }
+        }
+        finally
+        {
+            Marshal.FreeHGlobal(ptr);
+        }
+    }
+
+    private async Task LoginCameraAsync(CameraConfigItem cam, CancellationToken ct)
+    {
+        var session = new CameraSession
+        {
+            DeviceId = cam.DeviceId,
+            Ip = cam.Ip
+        };
+
+        var loginInfo = new CHCNetSDK.NET_DVR_USER_LOGIN_INFO
+        {
+            sDeviceAddress = Encoding.UTF8.GetBytes(cam.Ip.PadRight(129, '\0')),
+            sUserName = Encoding.UTF8.GetBytes(cam.UserName.PadRight(64, '\0')),
+            sPassword = Encoding.UTF8.GetBytes(cam.Password.PadRight(64, '\0')),
+            wPort = cam.Port,
+            bUseAsynLogin = false,
+            byUseTransport = 0
+        };
+
+        var deviceInfo = new CHCNetSDK.NET_DVR_DEVICEINFO_V40();
+
+        // 在后台线程执行同步登录
+        int userId = await Task.Run(() =>
+            CHCNetSDK.NET_DVR_Login_V40(ref loginInfo, ref deviceInfo), ct);
+
+        if (userId < 0)
+        {
+            uint err = CHCNetSDK.NET_DVR_GetLastError();
+            _logger.LogError("Login failed: DeviceId={DeviceId}, Ip={Ip}, Error={Error}", cam.DeviceId, cam.Ip, err);
+
+            _alarmStore.UpdateCameraStatus(new HikvisionCameraStatus
+            {
+                DeviceId = cam.DeviceId,
+                Ip = cam.Ip,
+                Online = false,
+                ErrorMessage = $"Login failed, error={err}"
+            });
+            return;
+        }
+
+        session.UserId = userId;
+        _logger.LogInformation("Login success: DeviceId={DeviceId}, Ip={Ip}, UserId={UserId}", cam.DeviceId, cam.Ip, userId);
+
+        // 设置布防
+        var alarmParam = new CHCNetSDK.NET_DVR_SETUPALARM_PARAM
+        {
+            dwSize = (uint)Marshal.SizeOf<CHCNetSDK.NET_DVR_SETUPALARM_PARAM>(),
+            byLevel = 0,           // 0-一级报警（最高）
+            byAlarmInfoType = 0,
+            byDeployType = 1       // 1-实时布防
+        };
+
+        int alarmHandle = await Task.Run(() =>
+            CHCNetSDK.NET_DVR_SetupAlarmChan_V41(userId, ref alarmParam), ct);
+
+        if (alarmHandle < 0)
+        {
+            uint err = CHCNetSDK.NET_DVR_GetLastError();
+            _logger.LogWarning("SetupAlarmChan failed: DeviceId={DeviceId}, Error={Error}", cam.DeviceId, err);
+        }
+        else
+        {
+            session.AlarmHandle = alarmHandle;
+            session.Armed = true;
+            _logger.LogInformation("Alarm armed: DeviceId={DeviceId}, Handle={Handle}", cam.DeviceId, alarmHandle);
+        }
+
+        _sessions.Add(session);
+
+        _alarmStore.UpdateCameraStatus(new HikvisionCameraStatus
+        {
+            DeviceId = cam.DeviceId,
+            Ip = cam.Ip,
+            Online = true,
+            Armed = session.Armed,
+            UserId = userId,
+            AlarmHandle = session.AlarmHandle
+        });
+    }
+
+    /// <summary>
+    /// 静态回调桥接 — SDK 回调在非托管线程上执行
+    /// </summary>
+    private static bool AlarmCallbackBridge(int lCommand, ref CHCNetSDK.NET_DVR_ALARMER pAlarmer, IntPtr pAlarmInfo, uint dwBufLen, IntPtr pUser)
+    {
+        var instance = s_instance;
+        if (instance == null) return true;
+
+        try
+        {
+            instance.HandleAlarm(lCommand, ref pAlarmer, pAlarmInfo, dwBufLen);
+        }
+        catch (Exception ex)
+        {
+            instance._logger.LogError(ex, "Unhandled error in alarm callback");
+        }
+
+        return true;
+    }
+
+    private void HandleAlarm(int lCommand, ref CHCNetSDK.NET_DVR_ALARMER pAlarmer, IntPtr pAlarmInfo, uint dwBufLen)
+    {
+        if (lCommand != CHCNetSDK.COMM_ISAPI_ALARM)
+        {
+            // 仅处理 ISAPI 报警（JSON/XML 数据分离后的类型）
+            _logger.LogDebug("Ignored alarm command: 0x{Command:X}", lCommand);
+            return;
+        }
+
+        string ip = GetString(pAlarmer.sDeviceIP);
+
+        try
+        {
+            var struAlarm = Marshal.PtrToStructure<CHCNetSDK.NET_DVR_ALARM_ISAPI_INFO>(pAlarmInfo);
+
+            // 提取报警数据
+            string alarmData = string.Empty;
+            string dataType = "unknown";
+
+            if (struAlarm.dwAlarmDataLen > 0 && struAlarm.pAlarmData != IntPtr.Zero)
+            {
+                byte[] by = new byte[struAlarm.dwAlarmDataLen];
+                Marshal.Copy(struAlarm.pAlarmData, by, 0, (int)struAlarm.dwAlarmDataLen);
+                alarmData = Encoding.UTF8.GetString(by);
+
+                dataType = struAlarm.byDataType switch
+                {
+                    1 => "xml",
+                    2 => "json",
+                    _ => "unknown"
+                };
+
+                _logger.LogInformation(
+                    "[ISAPI Alarm] DeviceIp={Ip}, DataType={Type}, DataLen={Len}",
+                    ip, dataType, struAlarm.dwAlarmDataLen);
+
+                // 控制台输出
+                Console.WriteLine($"========== ISAPI报警{dataType.ToUpper()}数据 (设备IP: {ip}) ==========");
+                Console.WriteLine(alarmData);
+                Console.WriteLine("==============================================================\r\n");
+            }
+
+            // 提取图片数据
+            var pictures = new List<AlarmPicture>();
+            if (struAlarm.byPicturesNumber > 0 && struAlarm.pPicPackData != IntPtr.Zero)
+            {
+                int picStructSize = Marshal.SizeOf<CHCNetSDK.NET_DVR_ALARM_ISAPI_PICDATA>();
+                for (int i = 0; i < struAlarm.byPicturesNumber; i++)
+                {
+                    IntPtr picPtr = IntPtr.Add(struAlarm.pPicPackData, i * picStructSize);
+                    var struPic = Marshal.PtrToStructure<CHCNetSDK.NET_DVR_ALARM_ISAPI_PICDATA>(picPtr);
+
+                    if (struPic.dwPicLen > 0 && struPic.pPicData != IntPtr.Zero)
+                    {
+                        byte[] picBytes = new byte[struPic.dwPicLen];
+                        Marshal.Copy(struPic.pPicData, picBytes, 0, (int)struPic.dwPicLen);
+
+                        string fileName = Encoding.UTF8.GetString(struPic.szFilename).TrimEnd('\0');
+                        pictures.Add(new AlarmPicture
+                        {
+                            FileName = fileName,
+                            Length = struPic.dwPicLen,
+                            Base64 = Convert.ToBase64String(picBytes)
+                        });
+                    }
+                }
+
+                _logger.LogInformation("[ISAPI Alarm] Pictures count: {Count}", pictures.Count);
+            }
+
+            // 查找匹配的设备 ID
+            string deviceId = _sessions
+                .FirstOrDefault(s => string.Equals(s.Ip, ip, StringComparison.OrdinalIgnoreCase))
+                ?.DeviceId ?? ip;
+
+            // 创建报警记录
+            var record = new AlarmRecord
+            {
+                DeviceId = deviceId,
+                Ip = ip,
+                DataType = dataType,
+                RawData = alarmData,
+                DataLength = struAlarm.dwAlarmDataLen,
+                PictureCount = pictures.Count,
+                Pictures = pictures,
+                Timestamp = DateTimeOffset.UtcNow
+            };
+
+            _alarmStore.Add(record);
+
+            // 更新摄像头最后报警时间
+            var status = _alarmStore.GetCameraStatus(deviceId);
+            if (status != null)
+            {
+                status.LastAlarmTime = record.Timestamp;
+                _alarmStore.UpdateCameraStatus(status);
+            }
+
+            // 通过 SignalR 推送报警数据到前端
+            _ = _notifier.BroadcastHikvisionAlarmAsync(record);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Error processing ISAPI alarm from {Ip}", ip);
+        }
+    }
+
+    private async Task CleanupAsync()
+    {
+        foreach (var session in _sessions)
+        {
+            try
+            {
+                if (session.AlarmHandle >= 0)
+                {
+                    await Task.Run(() => CHCNetSDK.NET_DVR_CloseAlarmChan_V30(session.AlarmHandle));
+                    _logger.LogInformation("Alarm channel closed: DeviceId={DeviceId}", session.DeviceId);
+                }
+
+                if (session.UserId >= 0)
+                {
+                    await Task.Run(() => CHCNetSDK.NET_DVR_Logout(session.UserId));
+                    _logger.LogInformation("Logout: DeviceId={DeviceId}", session.DeviceId);
+                }
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error cleaning up session: DeviceId={DeviceId}", session.DeviceId);
+            }
+        }
+
+        _sessions.Clear();
+
+        if (_sdkInitialized)
+        {
+            await Task.Run(() => CHCNetSDK.NET_DVR_Cleanup());
+            _logger.LogInformation("SDK cleanup completed");
+        }
+    }
+
+    private static string GetString(byte[] bytes)
+    {
+        if (bytes == null || bytes.Length == 0) return string.Empty;
+        int nullIdx = Array.IndexOf(bytes, (byte)0);
+        return nullIdx >= 0
+            ? Encoding.UTF8.GetString(bytes, 0, nullIdx)
+            : Encoding.UTF8.GetString(bytes);
+    }
+
+    /// <summary>
+    /// 摄像头会话状态
+    /// </summary>
+    private sealed class CameraSession
+    {
+        public string DeviceId { get; set; } = string.Empty;
+        public string Ip { get; set; } = string.Empty;
+        public int UserId { get; set; } = -1;
+        public int AlarmHandle { get; set; } = -1;
+        public bool Armed { get; set; }
+    }
+}
diff --git a/Services/IHikvisionAlarmStore.cs b/Services/IHikvisionAlarmStore.cs
new file mode 100644
index 0000000..6970325
--- /dev/null
+++ b/Services/IHikvisionAlarmStore.cs
@@ -0,0 +1,51 @@
+using YD_TrainingCompetition_Api.Models;
+
+namespace YD_TrainingCompetition_Api.Services;
+
+public interface IHikvisionAlarmStore
+{
+    /// <summary>
+    /// 存储一条报警记录
+    /// </summary>
+    void Add(AlarmRecord record);
+
+    /// <summary>
+    /// 获取所有报警记录（按时间倒序）
+    /// </summary>
+    IReadOnlyCollection<AlarmRecord> GetAll();
+
+    /// <summary>
+    /// 获取指定摄像头的报警记录
+    /// </summary>
+    IReadOnlyCollection<AlarmRecord> GetByDeviceId(string deviceId);
+
+    /// <summary>
+    /// 获取最新一条报警记录
+    /// </summary>
+    AlarmRecord? GetLatest();
+
+    /// <summary>
+    /// 获取最新一条报警记录（按设备）
+    /// </summary>
+    AlarmRecord? GetLatestByDevice(string deviceId);
+
+    /// <summary>
+    /// 更新摄像头状态
+    /// </summary>
+    void UpdateCameraStatus(HikvisionCameraStatus status);
+
+    /// <summary>
+    /// 获取所有摄像头状态
+    /// </summary>
+    IReadOnlyCollection<HikvisionCameraStatus> GetAllCameraStatuses();
+
+    /// <summary>
+    /// 获取单个摄像头状态
+    /// </summary>
+    HikvisionCameraStatus? GetCameraStatus(string deviceId);
+
+    /// <summary>
+    /// 清空报警记录
+    /// </summary>
+    void ClearAlarms();
+}
diff --git a/Services/IRealtimeNotifier.cs b/Services/IRealtimeNotifier.cs
index 1936716..031d993 100644
--- a/Services/IRealtimeNotifier.cs
+++ b/Services/IRealtimeNotifier.cs
@@ -7,5 +7,20 @@ public interface IRealtimeNotifier
 {
     Task BroadcastTelemetryAsync(DeviceSnapshot snapshot, CancellationToken cancellationToken = default);
     Task BroadcastCompetitionStateAsync(CompetitionSessionState state, CancellationToken cancellationToken = default);
+
+    /// <summary>
+    /// 通用广播方法，用于向所有客户端发送指定消息
+    /// </summary>
+    Task SendAsync(string method, object? payload, CancellationToken cancellationToken = default);
+
+    /// <summary>
+    /// 广播海康报警记录
+    /// </summary>
+    Task BroadcastHikvisionAlarmAsync(AlarmRecord record, CancellationToken cancellationToken = default);
+
+    /// <summary>
+    /// 广播海康摄像头状态变更
+    /// </summary>
+    Task BroadcastHikvisionCameraStatusAsync(HikvisionCameraStatus status, CancellationToken cancellationToken = default);
 }
 
diff --git a/Services/SignalRRealtimeNotifier.cs b/Services/SignalRRealtimeNotifier.cs
index 2b42976..ca95dbe 100644
--- a/Services/SignalRRealtimeNotifier.cs
+++ b/Services/SignalRRealtimeNotifier.cs
@@ -23,5 +23,20 @@ public sealed class SignalRRealtimeNotifier : IRealtimeNotifier
     {
         return _hubContext.Clients.All.SendAsync("competition-state", state, cancellationToken);
     }
+
+    public Task SendAsync(string method, object? payload, CancellationToken cancellationToken = default)
+    {
+        return _hubContext.Clients.All.SendAsync(method, payload ?? new { }, cancellationToken);
+    }
+
+    public Task BroadcastHikvisionAlarmAsync(AlarmRecord record, CancellationToken cancellationToken = default)
+    {
+        return _hubContext.Clients.All.SendAsync("HikvisionAlarmReceived", record, cancellationToken);
+    }
+
+    public Task BroadcastHikvisionCameraStatusAsync(HikvisionCameraStatus status, CancellationToken cancellationToken = default)
+    {
+        return _hubContext.Clients.All.SendAsync("HikvisionCameraStatusChanged", status, cancellationToken);
+    }
 }
 
diff --git a/appsettings.json b/appsettings.json
index 2fcdcc9..e9fe42e 100644
--- a/appsettings.json
+++ b/appsettings.json
@@ -21,5 +21,22 @@
   },
   "Roster": {
     "FolderPath": "C:\\Users\\tangl\\Desktop\\长征小学版本(2)\\长征小学版本(2)\\长征小学版本\\Jump_window\\bin\\Debug\\秩序册"
+  },
+  "Hikvision": {
+    "Enabled": false,
+    "SdkLogPath": "C:\\SdkLog\\",
+    "AlarmJsonPictureSeparate": 1,
+    "MaxAlarmRecords": 200,
+    "Cameras": [
+      {
+        "DeviceId": "camera-01",
+        "Ip": "192.168.1.64",
+        "Port": 8000,
+        "UserName": "admin",
+        "Password": "",
+        "Channel": 1,
+        "Enabled": true
+      }
+    ]
   }
 }
diff --git a/obj/YD_TrainingCompetition_Api.csproj.nuget.dgspec.json b/obj/YD_TrainingCompetition_Api.csproj.nuget.dgspec.json
index 6542d59..5257622 100644
--- a/obj/YD_TrainingCompetition_Api.csproj.nuget.dgspec.json
+++ b/obj/YD_TrainingCompetition_Api.csproj.nuget.dgspec.json
@@ -1,17 +1,17 @@
 {
   "format": 1,
   "restore": {
-    "C:\\Project\\赛事\\YD_TrainingCompetition_Api\\YD_TrainingCompetition_Api.csproj": {}
+    "C:\\Project\\Event\\YD_TrainingCompetition_Api\\YD_TrainingCompetition_Api.csproj": {}
   },
   "projects": {
-    "C:\\Project\\赛事\\YD_TrainingCompetition_Api\\YD_TrainingCompetition_Api.csproj": {
+    "C:\\Project\\Event\\YD_TrainingCompetition_Api\\YD_TrainingCompetition_Api.csproj": {
       "version": "1.0.0",
       "restore": {
-        "projectUniqueName": "C:\\Project\\赛事\\YD_TrainingCompetition_Api\\YD_TrainingCompetition_Api.csproj",
+        "projectUniqueName": "C:\\Project\\Event\\YD_TrainingCompetition_Api\\YD_TrainingCompetition_Api.csproj",
         "projectName": "YD_TrainingCompetition_Api",
-        "projectPath": "C:\\Project\\赛事\\YD_TrainingCompetition_Api\\YD_TrainingCompetition_Api.csproj",
+        "projectPath": "C:\\Project\\Event\\YD_TrainingCompetition_Api\\YD_TrainingCompetition_Api.csproj",
         "packagesPath": "C:\\Users\\19304\\.nuget\\packages\\",
-        "outputPath": "C:\\Project\\赛事\\YD_TrainingCompetition_Api\\obj\\",
+        "outputPath": "C:\\Project\\Event\\YD_TrainingCompetition_Api\\obj\\",
         "projectStyle": "PackageReference",
         "fallbackFolders": [
           "C:\\Program Files (x86)\\Microsoft Visual Studio\\Shared\\NuGetPackages"
diff --git a/obj/project.assets.json b/obj/project.assets.json
index 9e6afb3..1a2dc61 100644
--- a/obj/project.assets.json
+++ b/obj/project.assets.json
@@ -1044,11 +1044,11 @@
   "project": {
     "version": "1.0.0",
     "restore": {
-      "projectUniqueName": "C:\\Project\\赛事\\YD_TrainingCompetition_Api\\YD_TrainingCompetition_Api.csproj",
+      "projectUniqueName": "C:\\Project\\Event\\YD_TrainingCompetition_Api\\YD_TrainingCompetition_Api.csproj",
       "projectName": "YD_TrainingCompetition_Api",
-      "projectPath": "C:\\Project\\赛事\\YD_TrainingCompetition_Api\\YD_TrainingCompetition_Api.csproj",
+      "projectPath": "C:\\Project\\Event\\YD_TrainingCompetition_Api\\YD_TrainingCompetition_Api.csproj",
       "packagesPath": "C:\\Users\\19304\\.nuget\\packages\\",
-      "outputPath": "C:\\Project\\赛事\\YD_TrainingCompetition_Api\\obj\\",
+      "outputPath": "C:\\Project\\Event\\YD_TrainingCompetition_Api\\obj\\",
       "projectStyle": "PackageReference",
       "fallbackFolders": [
         "C:\\Program Files (x86)\\Microsoft Visual Studio\\Shared\\NuGetPackages"
diff --git a/obj/project.nuget.cache b/obj/project.nuget.cache
index 4039ad6..1df9d2d 100644
--- a/obj/project.nuget.cache
+++ b/obj/project.nuget.cache
@@ -1,8 +1,8 @@
 {
   "version": 2,
-  "dgSpecHash": "MwWq4leAOS8=",
+  "dgSpecHash": "cuY1YmDuD/k=",
   "success": true,
-  "projectFilePath": "C:\\Project\\赛事\\YD_TrainingCompetition_Api\\YD_TrainingCompetition_Api.csproj",
+  "projectFilePath": "C:\\Project\\Event\\YD_TrainingCompetition_Api\\YD_TrainingCompetition_Api.csproj",
   "expectedPackageFiles": [
     "C:\\Users\\19304\\.nuget\\packages\\closedxml\\0.104.0\\closedxml.0.104.0.nupkg.sha512",
     "C:\\Users\\19304\\.nuget\\packages\\closedxml.parser\\1.2.0\\closedxml.parser.1.2.0.nupkg.sha512",