C# 海康DVR客户端开发系列（2）—— 封装API
本文共 16706 字，大约阅读时间需要 55 分钟。
前言
提醒
欢迎转载，但请保留 (www.cnblogs.com)、 (over140.cnblogs.com)的出处，谢谢合作:)
系列
1.
2.
实现最基本的连接服务器并预览图像的功能。
结束语
从上篇文章（10月4日）到本篇文章截止到今天（10月22日）一直在做这个SDK翻译工作，耗时2周半，代码超过1万行，约有三分之二的行数是注释。由于工作忙也只能一天抽出那么半个小时一个小时来整理，所以对关注此系列文章的朋友说句：“抱歉，让大家久等了”。
临时决定本系列使用WPF来做例子(买了一本WPF没读 - - #，所以......)，藉此学习下WPF，也进一步熟悉.Net Framework 3.5，落伍的“老兵”奋起追击下相对于“老兵”而言的新技术 :)
其实这篇文章在10月22日就写好了，但是想和视频预览文章一起发布，比较麻烦的是我这边朋友的DVR一直不稳定，一直拖延到今天还是不行，所以还是把本文先发了。因此寻求能提供DVR设备的厂家或者提供DVR远程访问地址的朋友，以支持此系列能顺利的完成，在这里先谢谢了！我的联系方式：13811821337、over140@gmail.com
提醒
欢迎转载，但请保留 (www.cnblogs.com)、 (over140.cnblogs.com)的出处，谢谢合作:)
系列
1.
2.
更新
本文会随着后续实践文章有相应的改动，请及时更新！
2010-12-21
主要更新了SerialDataCallBack委托的pRecvDataBuffer参数数据类型，由string改为byte[]，这里感谢实践后指出，欢迎大家积极反馈！
2009-10-31
主要更新了大部分结构体中byte[]初始大小指定，加上了[MarshalAs(UnmanagedType.ByValArray, SizeConst = HCNetSDK.SERIALNO_LEN)]类似的标记。
2009-10-24
正文
一、代码截图
VS 
二、 部分代码
由于代码过长（超过1W行），这里就不贴全部了，大家直接在更新下面下载最新的SDK即可。
/// 设置码流速度 /// </summary> public const int NET_DVR_SETSPEED = 24 ; /// <summary> /// 保持与设备的心跳(如果回调阻塞，建议2秒发送一次) /// </summary> public const int NET_DVR_KEEPALIVE = 25 ; // 远程按键定义如下： /* 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 ; /// <summary> /// 光圈+ /// </summary> public const int KEY_PTZ_AP1_START = KEY_CODE_EDIT; /* 光圈+ */ public const int KEY_PTZ_AP1_STOP = 36 ; /// <summary> /// 光圈- /// </summary> public const int KEY_PTZ_AP2_START = KEY_CODE_PAN; /* 光圈- */ public const int KEY_PTZ_AP2_STOP = 37 ; /// <summary> /// 聚焦+ /// </summary> public const int KEY_PTZ_FOCUS1_START = KEY_CODE_A; /* 聚焦+ */ public const int KEY_PTZ_FOCUS1_STOP = 38 ; /// <summary> /// 聚焦- /// </summary> public const int KEY_PTZ_FOCUS2_START = KEY_CODE_M; /* 聚焦- */ public const int KEY_PTZ_FOCUS2_STOP = 39 ; /// <summary> /// 变倍+ /// </summary> public const int KEY_PTZ_B1_START = 40 ; /* 变倍+ */ public const int KEY_PTZ_B1_STOP = 41 ; /// <summary> /// 变倍- /// </summary> public const int KEY_PTZ_B2_START = 42 ; /* 变倍- */ public const int KEY_PTZ_B2_STOP = 43 ; // 9000新增 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 ; /// <summary> /// 获取网络应用参数 EMAIL /// </summary> public const int NET_DVR_GET_EMAILCFG = 228 ; // /// <summary> /// 设置网络应用参数 EMAIL /// </summary> public const int NET_DVR_SET_EMAILCFG = 229 ; // // 对应NET_DVR_EMAILCFG结构 // public const int NET_DVR_GET_ALLHDCFG = 300 ; // #region DS9000新增命令(_V30) // 设备编码类型配置(NET_DVR_COMPRESSION_AUDIO结构) /// <summary> /// 获取设备语音对讲编码参数 /// </summary> public const int NET_DVR_GET_COMPRESSCFG_AUD = 1058 ; // /// <summary> /// 设置设备语音对讲编码参数 /// </summary> public const int NET_DVR_SET_COMPRESSCFG_AUD = 1059 ; // #endregion /// <summary> /// 预览异常 /// </summary> public const int NET_DVR_REALPLAYEXCEPTION = 111 ; // /// <summary> /// 预览时连接断开 /// </summary> public const int NET_DVR_REALPLAYNETCLOSE = 112 ; // /// <summary> /// 预览5s没有收到数据 /// </summary> public const int NET_DVR_REALPLAY5SNODATA = 113 ; // /// <summary> /// 预览重连 /// </summary> public const int NET_DVR_REALPLAYRECONNECT = 114 ; // /// <summary> /// 回放数据播放完毕 /// </summary> public const int NET_DVR_PLAYBACKOVER = 101 ; // /// <summary> /// 回放异常 /// </summary> public const int NET_DVR_PLAYBACKEXCEPTION = 102 ; // /// <summary> /// 回放时候连接断开 /// </summary> public const int NET_DVR_PLAYBACKNETCLOSE = 103 ; // /// <summary> /// 回放5s没有收到数据 /// </summary> public const int NET_DVR_PLAYBACK5SNODATA = 104 ; #region DS-6001D/F /// <summary> /// DS-6001D Decoder /// NET_DVR_DECODERINFO, *LPNET_DVR_DECODERINFO; /// </summary> public struct NET_DVR_DECODERINFO { /// <summary> /// 解码设备连接的服务器IP /// public byte byEncoderIP[16]; /// </summary> public byte [] byEncoderIP; /// <summary> /// 解码设备连接的服务器的用户名 /// public byte byEncoderUser[16]; /// </summary> public byte [] byEncoderUser; /// <summary> /// 解码设备连接的服务器的密码 /// public byte byEncoderPasswd[16]; /// </summary> public byte [] byEncoderPasswd; /// <summary> /// 解码设备连接服务器的连接模式 /// </summary> public byte bySendMode; /// <summary> /// 解码设备连接的服务器的通道号 /// </summary> public byte byEncoderChannel; /// <summary> /// 解码设备连接的服务器的端口号 /// </summary> public ushort wEncoderPort; /// <summary> /// 保留 /// public byte reservedData[4]; /// </summary> public byte [] reservedData; } /// <summary> /// NET_DVR_DECODERSTATE, *LPNET_DVR_DECODERSTATE; /// </summary> public struct NET_DVR_DECODERSTATE { /// <summary> /// 解码设备连接的服务器IP /// public byte byEncoderIP[16]; /// </summary> public byte [] byEncoderIP; /// <summary> /// 解码设备连接的服务器的用户名 /// public byte byEncoderUser[16]; /// </summary> public byte [] byEncoderUser; /// <summary> /// 解码设备连接的服务器的密码 /// public byte byEncoderPasswd[16]; /// </summary> public byte [] byEncoderPasswd; /// <summary> /// 解码设备连接的服务器的通道号 /// </summary> public byte byEncoderChannel; /// <summary> /// 解码设备连接的服务器的连接模式 /// </summary> public byte bySendMode; /// <summary> /// 解码设备连接的服务器的端口号 /// </summary> public ushort wEncoderPort; /// <summary> /// 解码设备连接服务器的状态 /// </summary> public uint dwConnectState; /// <summary> /// 保留 /// public byte reservedData[4]; /// </summary> public byte [] reservedData; } #region 解码设备控制码定义 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 ; #endregion #endregion /// <summary> /// Email /// NET_DVR_EMAILPARA, *LPNET_DVR_EMAILPARA; /// </summary> public struct NET_DVR_EMAILPARA { /// <summary> /// 邮件账号 /// public byte sUsername[64]; /// </summary> public string sUsername; /// <summary> /// 邮件密码 /// public byte sPassword[64]; /// </summary> public string sPassword; /// <summary> /// public byte sSmtpServer[64]; /// </summary> public string sSmtpServer; /// <summary> /// public byte sPop3Server[64]; /// </summary> public string sPop3Server; /// <summary> /// 邮件地址 /// public byte sMailAddr[64]; /// </summary> public string sMailAddr; /// <summary> /// 上传报警/异常等的email /// public byte sEventMailAddr1[64]; /// </summary> public byte [] sEventMailAddr1; /// <summary> /// public byte sEventMailAddr2[64]; /// </summary> public byte [] sEventMailAddr2; /// <summary> /// public byte res[16]; /// </summary> public byte [] res; } /// <summary> /// NET_DVR_NETCFG_OTHER, *LPNET_DVR_NETCFG_OTHER; /// </summary> public struct NET_DVR_NETCFG_OTHER { public uint dwSize; /// <summary> /// char sFirstDNSIP[16]; /// </summary> public string sFirstDNSIP; /// <summary> /// char sSecondDNSIP[16]; /// </summary> public string sSecondDNSIP; /// <summary> /// char sRes[32]; /// </summary> public string sRes; } /// <summary> /// 连接的通道配置 2007-11-05 /// NET_DVR_MATRIX_DECCHANINFO, *LPNET_DVR_MATRIX_DECCHANINFO; /// </summary> public struct NET_DVR_MATRIX_DECCHANINFO { /// <summary> /// 是否启用 0－否 1－启用 /// </summary> public uint dwEnable; /// <summary> /// 轮循解码通道信息 /// </summary> public NET_DVR_MATRIX_DECINFO struDecChanInfo; } /// <summary> /// 压缩参数? /// NET_DVR_COMPRESSIONCFG_NEW, *LPNET_DVR_COMPRESSIONCFG_NEW; /// </summary> public struct NET_DVR_COMPRESSIONCFG_NEW { public uint dwSize; /// <summary> /// 定时录像 /// </summary> public NET_DVR_COMPRESSION_INFO_EX struLowCompression; /// <summary> /// 事件触发录像 /// </summary> public NET_DVR_COMPRESSION_INFO_EX struEventCompression; } /// <summary> /// 抓图模式 /// </summary> public enum CAPTURE_MODE { /// <summary> /// BMP模式 /// </summary> BMP_MODE = 0 , // /// <summary> /// JPEG模式 /// </summary> JPEG_MODE = 1 // } /// <summary> /// 实时声音模式 /// </summary> public enum REALSOUND_MODE { /// <summary> /// 独占模式 /// </summary> MONOPOLIZE_MODE = 1 , /// <summary> /// 共享模式 /// </summary> SHARE_MODE = 2 } /// <summary> /// 录象文件参数(带卡号) /// NET_DVR_FINDDATA_CARD, *LPNET_DVR_FINDDATA_CARD; /// </summary> public struct NET_DVR_FINDDATA_CARD { /// <summary> /// 文件名 /// char sFileName[100]; /// </summary> public string sFileName; /// <summary> /// 文件的开始时间 /// </summary> public NET_DVR_TIME struStartTime; /// <summary> /// 文件的结束时间 /// </summary> public NET_DVR_TIME struStopTime; /// <summary> /// 文件的大小 /// </summary> public uint dwFileSize; /// <summary> /// 卡号? /// char sCardNum[32]; /// </summary> public char sCardNum; } /// <summary> /// 设置重新连接间隔 /// NET_DVR_API BOOL __stdcall NET_DVR_SetReconnect(DWORD dwInterval = 30000, BOOL bEnableRecon = TRUE); /// </summary> /// <param name="dwInterval"></param> /// <param name="bEnableRecon"></param> /// <returns></returns> [DllImport( " HCNetSDK.dll " )] public static extern bool NET_DVR_SetReconnect( uint dwInterval, bool bEnableRecon); /// <summary> /// 通过IPSever获取设备动态IP地址[Ex] /// NET_DVR_API BOOL __stdcall NET_DVR_GetDVRIPByResolveSvr_EX(char *sServerIP, WORD wServerPort, unsigned char *sDVRName, WORD wDVRNameLen, BYTE *sDVRSerialNumber, WORD wDVRSerialLen, char* sGetIP, DWORD *dwPort); /// </summary> /// <param name="sServerIP"></param> /// <param name="wServerPort"></param> /// <param name="sDVRName"></param> /// <param name="wDVRNameLen"></param> /// <param name="sDVRSerialNumber"></param> /// <param name="wDVRSerialLen"></param> /// <param name="sGetIP"></param> /// <param name="dwPort"></param> /// <returns></returns> [DllImport( " HCNetSDK.dll " )] public static extern bool NET_DVR_GetDVRIPByResolveSvr_EX( string sServerIP, ushort wServerPort, string sDVRName, ushort wDVRNameLen, string sDVRSerialNumber, ushort wDVRSerialLen, StringBuilder sGetIP, ref uint dwPort); /// <summary> /// NET_DVR_API BOOL __stdcall NET_DVR_PTZControlWithSpeed_EX(LONG lRealHandle, DWORD dwPTZCommand, DWORD dwStop, DWORD dwSpeed); /// </summary> /// <param name="lRealHandle"></param> /// <param name="dwPTZCommand"></param> /// <param name="dwStop"></param> /// <param name="dwSpeed"></param> /// <returns></returns> [DllImport( " HCNetSDK.dll " )] public static extern bool NET_DVR_PTZControlWithSpeed_EX( int lRealHandle, uint dwPTZCommand, uint dwStop, uint dwSpeed); /// <summary> /// NET_DVR_API BOOL __stdcall NET_DVR_PTZMltTrack(LONG lRealHandle,DWORD dwPTZTrackCmd, DWORD dwTrackIndex); /// </summary> /// <param name="lRealHandle"></param> /// <param name="dwPTZTrackCmd"></param> /// <param name="dwTrackIndex"></param> /// <returns></returns> [DllImport( " HCNetSDK.dll " )] public static extern bool NET_DVR_PTZMltTrack( int lRealHandle, uint dwPTZTrackCmd, uint dwTrackIndex); /// <summary> /// NET_DVR_API BOOL __stdcall NET_DVR_PTZMltTrack_Other(LONG lUserID,LONG lChannel,DWORD dwPTZTrackCmd, DWORD dwTrackIndex); /// </summary> /// <param name="lUserID"></param> /// <param name="lChannel"></param> /// <param name="dwPTZTrackCmd"></param> /// <param name="dwTrackIndex"></param> /// <returns></returns> [DllImport( " HCNetSDK.dll " )] public static extern bool NET_DVR_PTZMltTrack_Other( int lUserID, int lChannel, uint dwPTZTrackCmd, uint dwTrackIndex); /// <summary> /// NET_DVR_API BOOL __stdcall NET_DVR_PTZMltTrack_EX(LONG lRealHandle,DWORD dwPTZTrackCmd, DWORD dwTrackIndex); /// </summary> /// <param name="lRealHandle"></param> /// <param name="dwPTZTrackCmd"></param> /// <param name="dwTrackIndex"></param> /// <returns></returns> [DllImport( " HCNetSDK.dll " )] public static extern bool NET_DVR_PTZMltTrack_EX( int lRealHandle, uint dwPTZTrackCmd, uint dwTrackIndex); /// <summary> /// NET_DVR_API LONG __stdcall NET_DVR_FindNextFile_Card(LONG lFindHandle, LPNET_DVR_FINDDATA_CARD lpFindData); /// </summary> /// <param name="lFindHandle"></param> /// <param name="lpFindData"></param> /// <returns></returns> [DllImport( " HCNetSDK.dll " )] public static extern int NET_DVR_FindNextFile_Card( int lFindHandle, NET_DVR_FINDDATA_CARD lpFindData); /// <summary> /// NET_DVR_API LONG __stdcall NET_DVR_FindFile_Card(LONG lUserID, LONG lChannel, DWORD dwFileType, LPNET_DVR_TIME lpStartTime, LPNET_DVR_TIME lpStopTime); /// </summary> /// <param name="lUserID"></param> /// <param name="lChannel"></param> /// <param name="dwFileType"></param> /// <param name="lpStartTime"></param> /// <param name="lpStopTime"></param> /// <returns></returns> [DllImport( " HCNetSDK.dll " )] public static extern int NET_DVR_FindFile_Card( int lUserID, int lChannel, uint dwFileType, NET_DVR_TIME lpStartTime, NET_DVR_TIME lpStopTime); /// <summary> /// NET_DVR_API int __stdcall NET_DVR_GetPlayBackPos(LONG lPlayHandle); /// </summary> /// <param name="lPlayHandle"></param> /// <returns></returns> [DllImport( " HCNetSDK.dll " )] public static extern int NET_DVR_GetPlayBackPos( int lPlayHandle); // 解码设备DS-6001D/DS-6001F /// <summary> /// NET_DVR_API BOOL __stdcall NET_DVR_StartDecode(LONG lUserID, LONG lChannel, LPNET_DVR_DECODERINFO lpDecoderinfo); /// </summary> /// <param name="lUserID"></param> /// <param name="lChannel"></param> /// <param name="lpDecoderinfo"></param> /// <returns></returns> [DllImport( " HCNetSDK.dll " )] public static extern bool NET_DVR_StartDecode( int lUserID, int lChannel, NET_DVR_DECODERINFO lpDecoderinfo); /// <summary> /// NET_DVR_API BOOL __stdcall NET_DVR_StopDecode(LONG lUserID, LONG lChannel); /// </summary> /// <param name="lUserID"></param> /// <param name="lChannel"></param> /// <returns></returns> [DllImport( " HCNetSDK.dll " )] public static extern bool NET_DVR_StopDecode( int lUserID, int lChannel); /// <summary> /// NET_DVR_API BOOL __stdcall NET_DVR_GetDecoderState(LONG lUserID, LONG lChannel, LPNET_DVR_DECODERSTATE lpDecoderState); /// </summary> /// <param name="lUserID"></param> /// <param name="lChannel"></param> /// <param name="lpDecoderState"></param> /// <returns></returns> [DllImport( " HCNetSDK.dll " )] public static extern bool NET_DVR_GetDecoderState( int lUserID, int lChannel, NET_DVR_DECODERSTATE lpDecoderState); /// <summary> /// 保存参数 /// NET_DVR_API BOOL __stdcall NET_DVR_SaveConfig(LONG lUserID); /// </summary> /// <param name="lUserID"></param> /// <returns></returns> [DllImport( " HCNetSDK.dll " )] public static extern bool NET_DVR_SaveConfig( int lUserID); /// <summary> /// NET_DVR_API BOOL __stdcall NET_DVR_SetVideoEffect(LONG lUserID, LONG lChannel, DWORD dwBrightValue, DWORD dwContrastValue, DWORD dwSaturationValue, DWORD dwHueValue); /// </summary> /// <param name="lUserID"></param> /// <param name="lChannel"></param> /// <param name="dwBrightValue"></param> /// <param name="dwContrastValue"></param> /// <param name="dwSaturationValue"></param> /// <param name="dwHueValue"></param> /// <returns></returns> [DllImport( " HCNetSDK.dll " )] public static extern bool NET_DVR_SetVideoEffect( int lUserID, int lChannel, uint dwBrightValue, uint dwContrastValue, uint dwSaturationValue, uint dwHueValue); /// <summary> /// NET_DVR_API BOOL __stdcall NET_DVR_GetVideoEffect(LONG lUserID, LONG lChannel, DWORD *pBrightValue, DWORD *pContrastValue, DWORD *pSaturationValue, DWORD *pHueValue); /// </summary> /// <param name="lUserID"></param> /// <param name="lChannel"></param> /// <param name="pBrightValue"></param> /// <param name="pContrastValue"></param> /// <param name="pSaturationValue"></param> /// <param name="pHueValue"></param> /// <returns></returns> [DllImport( " HCNetSDK.dll " )] public static extern bool NET_DVR_GetVideoEffect( int lUserID, int lChannel, out uint pBrightValue, out uint pContrastValue, out uint pSaturationValue, out uint pHueValue);
三、下章预告 实现最基本的连接服务器并预览图像的功能。
结束语
首先我必须强调本章的翻译是一个体力活！本章可能会再随后的文章不断的更新，主要是数据类型对应可能有问题，这里也是凭经验来进行对应了，也欢迎有朋友尽早的向我提交勘误，我好及时的更新文章。
转载：http://www.cnblogs.com/over140/archive/2009/10/24/1577975.html
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