海康PTZ云台摄像头调试之直接控制云台(C#)

        private bool m_bInitSDK = false;         private bool m_bRecord = false;         private uint iLastErr = 0;         private Int32 m_lUserID = -1;         private Int32 m_lRealHandle = -1;         private string str1;         private string str2;         private Int32 i = 0;         private Int32 m_lTree = 0;         private string str;         private long iSelIndex = 0;         private uint dwAChanTotalNum = 0;         private uint dwDChanTotalNum = 0;         private Int32 m_lPort = -1;         private IntPtr m_ptrRealHandle;         private int[] iIPDevID = new int[96];         private int[] iChannelNum = new int[96];          private CHCNetSDK.REALDATACALLBACK RealData = null;         public CHCNetSDK.NET_DVR_DEVICEINFO_V30 DeviceInfo;         public CHCNetSDK.NET_DVR_IPPARACFG_V40 m_struIpParaCfgV40;         public CHCNetSDK.NET_DVR_STREAM_MODE m_struStreamMode;         public CHCNetSDK.NET_DVR_IPCHANINFO m_struChanInfo;         public CHCNetSDK.NET_DVR_PU_STREAM_URL m_struStreamURL;         public CHCNetSDK.NET_DVR_IPCHANINFO_V40 m_struChanInfoV40;         public delegate void MyDebugInfo(string str);         CHCNetSDK.NET_DVR_PREVIEWINFO lpPreviewInfo = new CHCNetSDK.NET_DVR_PREVIEWINFO();          public MainForm()         {             InitializeComponent();             m_bInitSDK = CHCNetSDK.NET_DVR_Init();             if (m_bInitSDK == false)             {                 MessageBox.Show("NET_DVR_Init error!");                 return;             }             else             {                 //保存SDK日志 To save the SDK log                 CHCNetSDK.NET_DVR_SetLogToFile(3, @"./SdkLog", true);                  //comboBoxView.SelectedIndex = 0;                  //for (int i = 0; i < 64; i++)                 //{                 //    iIPDevID[i] = -1;                 //    iChannelNum[i] = -1;                 //}             }          }          public void ListIPChannel(Int32 iChanNo, byte byOnline, int byIPID)         {             str1 = String.Format("IPCamera {0}", iChanNo);             m_lTree++;              if (byIPID == 0)             {                 str2 = "X"; //通道空闲，没有添加前端设备 the channel is idle                               }             else             {                 if (byOnline == 0)                 {                     str2 = "offline"; //通道不在线 the channel is off-line                 }                 else                     str2 = "online"; //通道在线 The channel is on-line             }              //listViewIPChannel.Items.Add(new ListViewItem(new string[] { str1, str2 }));//将通道添加到列表中 add the channel to the list         }         public void ListAnalogChannel(Int32 iChanNo, byte byEnable)         {             str1 = String.Format("Camera {0}", iChanNo);             m_lTree++;              if (byEnable == 0)             {                 str2 = "Disabled"; //通道已被禁用 This channel has been disabled                            }             else             {                 str2 = "Enabled"; //通道处于启用状态 This channel has been enabled             }              //listViewIPChannel.Items.Add(new ListViewItem(new string[] { str1, str2 }));//将通道添加到列表中 add the channel to the list         }         public void InfoIPChannel()         {             uint dwSize = (uint)Marshal.SizeOf(m_struIpParaCfgV40);              IntPtr ptrIpParaCfgV40 = Marshal.AllocHGlobal((Int32)dwSize);             Marshal.StructureToPtr(m_struIpParaCfgV40, ptrIpParaCfgV40, false);              uint dwReturn = 0;             int iGroupNo = 0;  //该Demo仅获取第一组64个通道，如果设备IP通道大于64路，需要按组号0~i多次调用NET_DVR_GET_IPPARACFG_V40获取              if (!CHCNetSDK.NET_DVR_GetDVRConfig(m_lUserID, CHCNetSDK.NET_DVR_GET_IPPARACFG_V40, iGroupNo, ptrIpParaCfgV40, dwSize, ref dwReturn))             {                 iLastErr = CHCNetSDK.NET_DVR_GetLastError();                 str = "NET_DVR_GET_IPPARACFG_V40 failed, error code= " + iLastErr;                 //获取IP资源配置信息失败，输出错误号 Failed to get configuration of IP channels and output the error code             }             else             {                  m_struIpParaCfgV40 = (CHCNetSDK.NET_DVR_IPPARACFG_V40)Marshal.PtrToStructure(ptrIpParaCfgV40, typeof(CHCNetSDK.NET_DVR_IPPARACFG_V40));                  for (i = 0; i < dwAChanTotalNum; i++)                 {                     ListAnalogChannel(i + 1, m_struIpParaCfgV40.byAnalogChanEnable[i]);                     iChannelNum[i] = i + (int)DeviceInfo.byStartChan;                 }                  byte byStreamType = 0;                 uint iDChanNum = 64;                  if (dwDChanTotalNum < 64)                 {                     iDChanNum = dwDChanTotalNum; //如果设备IP通道小于64路，按实际路数获取                 }                  for (i = 0; i < iDChanNum; i++)                 {                     iChannelNum[i + dwAChanTotalNum] = i + (int)m_struIpParaCfgV40.dwStartDChan;                     byStreamType = m_struIpParaCfgV40.struStreamMode[i].byGetStreamType;                      dwSize = (uint)Marshal.SizeOf(m_struIpParaCfgV40.struStreamMode[i].uGetStream);                     switch (byStreamType)                     {                         //目前NVR仅支持直接从设备取流 NVR supports only the mode: get stream from device directly                         case 0:                             IntPtr ptrChanInfo = Marshal.AllocHGlobal((Int32)dwSize);                             Marshal.StructureToPtr(m_struIpParaCfgV40.struStreamMode[i].uGetStream, ptrChanInfo, false);                             m_struChanInfo = (CHCNetSDK.NET_DVR_IPCHANINFO)Marshal.PtrToStructure(ptrChanInfo, typeof(CHCNetSDK.NET_DVR_IPCHANINFO));                              //列出IP通道 List the IP channel                             ListIPChannel(i + 1, m_struChanInfo.byEnable, m_struChanInfo.byIPID);                             iIPDevID[i] = m_struChanInfo.byIPID + m_struChanInfo.byIPIDHigh * 256 - iGroupNo * 64 - 1;                              Marshal.FreeHGlobal(ptrChanInfo);                             break;                         case 4:                             IntPtr ptrStreamURL = Marshal.AllocHGlobal((Int32)dwSize);                             Marshal.StructureToPtr(m_struIpParaCfgV40.struStreamMode[i].uGetStream, ptrStreamURL, false);                             m_struStreamURL = (CHCNetSDK.NET_DVR_PU_STREAM_URL)Marshal.PtrToStructure(ptrStreamURL, typeof(CHCNetSDK.NET_DVR_PU_STREAM_URL));                              //列出IP通道 List the IP channel                             ListIPChannel(i + 1, m_struStreamURL.byEnable, m_struStreamURL.wIPID);                             iIPDevID[i] = m_struStreamURL.wIPID - iGroupNo * 64 - 1;                              Marshal.FreeHGlobal(ptrStreamURL);                             break;                         case 6:                             IntPtr ptrChanInfoV40 = Marshal.AllocHGlobal((Int32)dwSize);                             Marshal.StructureToPtr(m_struIpParaCfgV40.struStreamMode[i].uGetStream, ptrChanInfoV40, false);                             m_struChanInfoV40 = (CHCNetSDK.NET_DVR_IPCHANINFO_V40)Marshal.PtrToStructure(ptrChanInfoV40, typeof(CHCNetSDK.NET_DVR_IPCHANINFO_V40));                              //列出IP通道 List the IP channel                             ListIPChannel(i + 1, m_struChanInfoV40.byEnable, m_struChanInfoV40.wIPID);                             iIPDevID[i] = m_struChanInfoV40.wIPID - iGroupNo * 64 - 1;                              Marshal.FreeHGlobal(ptrChanInfoV40);                             break;                         default:                             break;                     }                 }             }             Marshal.FreeHGlobal(ptrIpParaCfgV40);          } 

private void button1_Click(object sender, EventArgs e)         {             if (m_lUserID < 0)             {                 string DVRIPAddress = tb_IP.Text; //设备IP地址或者域名 Device IP                 Int16 DVRPortNumber = Int16.Parse(tb_Port.Text);//设备服务端口号 Device Port                 string DVRUserName = tb_ID.Text;//设备登录用户名 User name to login                 string DVRPassword = tb_Pwd.Text;//设备登录密码 Password to login                   //登录设备 Login the device                 m_lUserID = CHCNetSDK.NET_DVR_Login_V30(DVRIPAddress, DVRPortNumber, DVRUserName, DVRPassword, ref DeviceInfo);                 if (m_lUserID < 0)                 {                     iLastErr = CHCNetSDK.NET_DVR_GetLastError();                     str = "NET_DVR_Login_V30 failed, error code= " + iLastErr; //登录失败，输出错误号 Failed to login and output the error code                     return;                 }                 else                 {                     //登录成功                     button1.Text = "断开";                      dwAChanTotalNum = (uint)DeviceInfo.byChanNum;                     dwDChanTotalNum = (uint)DeviceInfo.byIPChanNum + 256 * (uint)DeviceInfo.byHighDChanNum;                     if (dwDChanTotalNum > 0)                     {                         InfoIPChannel();                     }                     else                     {                         for (i = 0; i < dwAChanTotalNum; i++)                         {                             ListAnalogChannel(i + 1, 1);                             iChannelNum[i] = i + (int)DeviceInfo.byStartChan;                         }                          //comboBoxView.SelectedItem = 1;                         // MessageBox.Show("This device has no IP channel!");                     }                 }              }             else             {                 //注销登录 Logout the device                 if (m_lRealHandle >= 0)                 {                     m_lUserID = -1;                     button1.Text = "连接相机";                     return;                 }                  if (!CHCNetSDK.NET_DVR_Logout(m_lUserID))                 {                     iLastErr = CHCNetSDK.NET_DVR_GetLastError();                     str = "NET_DVR_Logout failed, error code= " + iLastErr;                     return;                 }                 //listViewIPChannel.Items.Clear();//清空通道列表 Clean up the channel list                 m_lUserID = -1;                 button1.Text = "连接相机";             }              if (m_lRealHandle < 0)             {                 //lpPreviewInfo.hPlayWnd = RealPlayWnd.Handle;//预览窗口 live view window                 lpPreviewInfo.lChannel = iChannelNum[(int)iSelIndex];//预览的设备通道 the device channel number                 lpPreviewInfo.dwStreamType = 0;//码流类型：0-主码流，1-子码流，2-码流3，3-码流4，以此类推                 lpPreviewInfo.dwLinkMode = 0;//连接方式：0- TCP方式，1- UDP方式，2- 多播方式，3- RTP方式，4-RTP/RTSP，5-RSTP/HTTP                  lpPreviewInfo.bBlocked = true; //0- 非阻塞取流，1- 阻塞取流                 lpPreviewInfo.dwDisplayBufNum = 15; //播放库显示缓冲区最大帧数                  IntPtr pUser = IntPtr.Zero;//用户数据 user data                   //if (comboBoxView.SelectedIndex == 0)                 //{                 //打开预览 Start live view                  m_lRealHandle = CHCNetSDK.NET_DVR_RealPlay_V40(m_lUserID, ref lpPreviewInfo, null/*RealData*/, pUser);                 //}                 //else                 //{                 //    lpPreviewInfo.hPlayWnd = IntPtr.Zero;//预览窗口 live view window                 //    m_ptrRealHandle = RealPlayWnd.Handle;                 //    RealData = new CHCNetSDK.REALDATACALLBACK(RealDataCallBack);//预览实时流回调函数 real-time stream callback function                  //    m_lRealHandle = CHCNetSDK.NET_DVR_RealPlay_V40(m_lUserID, ref lpPreviewInfo, RealData, pUser);                 //}                  if (m_lRealHandle < 0)                 {                     iLastErr = CHCNetSDK.NET_DVR_GetLastError();                     str = "NET_DVR_RealPlay_V40 failed, error code= " + iLastErr; //预览失败，输出错误号 failed to start live view, and output the error code.                     return;                 }                 else                 {                     ////预览成功                     //DebugInfo("NET_DVR_RealPlay_V40 succ!");                     //btnPreview.Text = "Stop View";                     MessageBox.Show("连接成功！");                 }             }             return;         }