/// <summary>
/// 根据设备列表，初始化单个相机
/// </summary>
/// <param name="tCameraDevInfoList">相机设备列表</param>
/// <param name="cameraDevID">第i个相机</param>
/// <param name="PreviewBox">相机对应的PictureBox</param>
/// <param name="CaptureThreadProc1">相机对应的线程处理函数</param>
/// <param name="cameraObj">相机对象</param>
/// <returns></returns>
protected bool InitSingleCamera(tSdkCameraDevInfo[] tCameraDevInfoList, int cameraDevID,
ThreadStart CaptureThreadProc1,
PictureBox PreviewBox, Button BtnPlay, Label StateLabel,
string errMsg,
ref tpvCameraObj cameraObj)
{
if (MvApi.CameraInit(ref tCameraDevInfoList[cameraDevID], -1, -1, ref cameraObj.m_hCamera) == CameraSdkStatus.CAMERA_STATUS_SUCCESS)
{
//获得相机特性描述
MvApi.CameraGetCapability(cameraObj.m_hCamera, out cameraObj.tCameraCapability);
cameraObj.m_ImageBuffer = Marshal.AllocHGlobal(cameraObj.tCameraCapability.sResolutionRange.iWidthMax *
cameraObj.tCameraCapability.sResolutionRange.iHeightMax * 3 + 1024);
//初始化显示模块，使用SDK内部封装好的显示接口
MvApi.CameraDisplayInit(cameraObj.m_hCamera, PreviewBox.Handle);
MvApi.CameraSetDisplaySize(cameraObj.m_hCamera, PreviewBox.Width, PreviewBox.Height);
//让SDK来根据相机的型号动态创建该相机的配置窗口。
MvApi.CameraCreateSettingPage(cameraObj.m_hCamera, this.Handle, tCameraDevInfoList[cameraDevID].acFriendlyName,
/*SettingPageMsgCalBack*/ null, /*m_iSettingPageMsgCallbackCtx*/ (IntPtr)null, 0);
MvApi.CameraPlay(cameraObj.m_hCamera);
BtnPlay.Text = "Pause";
//两种方式来获得预览图像，设置回调函数或者使用定时器或者独立线程的方式，
//主动调用CameraGetImageBuffer接口来抓图。
//本例中仅演示了两种的方式,注意，两种方式也可以同时使用，但是在回调函数中，
//不要使用CameraGetImageBuffer，否则会造成死锁现象。
cameraObj.m_bExitCaptureThread = false;
cameraObj.m_tCaptureThread = new Thread(new ThreadStart(CaptureThreadProc1));
cameraObj.m_tCaptureThread.Start();
}
else
{
cameraObj.m_hCamera = 0;
//StateLabel.Text = "Camera 1 init error";
StateLabel.Text = errMsg;
return(false);
}
return(true);
}
private bool InitCamera()
{
CameraSdkStatus status;
tSdkCameraDevInfo[] tCameraDevInfoList;
//IntPtr ptr;
//int i;
#if USE_CALL_BACK
CAMERA_SNAP_PROC pCaptureCallOld = null;
#endif
if (m_hCamera > 0)
{
//已经初始化过，直接返回 true
return(true);
}
status = MvApi.CameraEnumerateDevice(out tCameraDevInfoList);
if (status == CameraSdkStatus.CAMERA_STATUS_SUCCESS)
{
if (tCameraDevInfoList != null)//此时iCameraCounts返回了实际连接的相机个数。如果大于1，则初始化第一个相机
{
status = MvApi.CameraInit(ref tCameraDevInfoList[0], -1, -1, ref m_hCamera);
if (status == CameraSdkStatus.CAMERA_STATUS_SUCCESS)
{
//获得相机特性描述
MvApi.CameraGetCapability(m_hCamera, out tCameraCapability);
m_ImageBuffer = Marshal.AllocHGlobal(tCameraCapability.sResolutionRange.iWidthMax * tCameraCapability.sResolutionRange.iHeightMax * 3 + 1024);
m_ImageBufferSnapshot = Marshal.AllocHGlobal(tCameraCapability.sResolutionRange.iWidthMax * tCameraCapability.sResolutionRange.iHeightMax * 3 + 1024);
//初始化显示模块，使用SDK内部封装好的显示接口
MvApi.CameraDisplayInit(m_hCamera, PreviewBox.Handle);
MvApi.CameraSetDisplaySize(m_hCamera, PreviewBox.Width, PreviewBox.Height);
//设置抓拍通道的分辨率。
tSdkImageResolution tResolution;
tResolution.uSkipMode = 0;
tResolution.uBinAverageMode = 0;
tResolution.uBinSumMode = 0;
tResolution.uResampleMask = 0;
tResolution.iVOffsetFOV = 0;
tResolution.iHOffsetFOV = 0;
tResolution.iWidthFOV = tCameraCapability.sResolutionRange.iWidthMax;
tResolution.iHeightFOV = tCameraCapability.sResolutionRange.iHeightMax;
tResolution.iWidth = tResolution.iWidthFOV;
tResolution.iHeight = tResolution.iHeightFOV;
//tResolution.iIndex = 0xff;表示自定义分辨率,如果tResolution.iWidth和tResolution.iHeight
//定义为0，则表示跟随预览通道的分辨率进行抓拍。抓拍通道的分辨率可以动态更改。
//本例中将抓拍分辨率固定为最大分辨率。
tResolution.iIndex = 0xff;
tResolution.acDescription = new byte[32];//描述信息可以不设置
tResolution.iWidthZoomHd = 0;
tResolution.iHeightZoomHd = 0;
tResolution.iWidthZoomSw = 0;
tResolution.iHeightZoomSw = 0;
MvApi.CameraSetResolutionForSnap(m_hCamera, ref tResolution);
//让SDK来根据相机的型号动态创建该相机的配置窗口。
MvApi.CameraCreateSettingPage(m_hCamera, this.Handle, tCameraDevInfoList[0].acFriendlyName, /*SettingPageMsgCalBack*/ null, /*m_iSettingPageMsgCallbackCtx*/ (IntPtr)null, 0);
//两种方式来获得预览图像，设置回调函数或者使用定时器或者独立线程的方式，
//主动调用CameraGetImageBuffer接口来抓图。
//本例中仅演示了两种的方式,注意，两种方式也可以同时使用，但是在回调函数中，
//不要使用CameraGetImageBuffer，否则会造成死锁现象。
#if USE_CALL_BACK
m_CaptureCallback = new CAMERA_SNAP_PROC(ImageCaptureCallback);
MvApi.CameraSetCallbackFunction(m_hCamera, m_CaptureCallback, m_iCaptureCallbackCtx, ref pCaptureCallOld);
#else //如果需要采用多线程，使用下面的方式
m_bExitCaptureThread = false;
m_tCaptureThread = new Thread(new ThreadStart(CaptureThreadProc));
m_tCaptureThread.Start();
#endif
//MvApi.CameraReadSN 和 MvApi.CameraWriteSN 用于从相机中读写用户自定义的序列号或者其他数据，32个字节
//MvApi.CameraSaveUserData 和 MvApi.CameraLoadUserData用于从相机中读取自定义数据，512个字节
return(true);
}
else
{
m_hCamera = 0;
StateLabel.Text = "Camera init error";
return(false);
}
}
}
return(false);
}
private bool InitCamera()
{
tSdkCameraDevInfo[] tCameraDevInfoList = new tSdkCameraDevInfo[12];
IntPtr ptr;
int i;
#if USE_CALL_BACK
CAMERA_SNAP_PROC pCaptureCallOld = null;
#endif
ptr = Marshal.AllocHGlobal(Marshal.SizeOf(new tSdkCameraDevInfo()) * 12);
int iCameraCounts = 12;//如果有多个相机时，表示最大只获取最多12个相机的信息列表。该变量必须初始化，并且大于1
if (m_hCamera > 0)
{
//已经初始化过，直接返回 true
return(true);
}
if (MvApi.CameraEnumerateDevice(ptr, ref iCameraCounts) == CameraSdkStatus.CAMERA_STATUS_SUCCESS)
{
for (i = 0; i < 12; i++)
{
tCameraDevInfoList[i] = (tSdkCameraDevInfo)Marshal.PtrToStructure((IntPtr)((int)ptr + i * Marshal.SizeOf(new tSdkCameraDevInfo())), typeof(tSdkCameraDevInfo));
}
Marshal.FreeHGlobal(ptr);
if (iCameraCounts >= 1)//此时iCameraCounts返回了实际连接的相机个数。如果大于1，则初始化第一个相机
{
if (MvApi.CameraInit(ref tCameraDevInfoList[0], -1, -1, ref m_hCamera) == CameraSdkStatus.CAMERA_STATUS_SUCCESS)
{
//获得相机特性描述
ptr = Marshal.AllocHGlobal(Marshal.SizeOf(new tSdkCameraCapbility()));
MvApi.CameraGetCapability(m_hCamera, ptr);
tCameraCapability = (tSdkCameraCapbility)Marshal.PtrToStructure(ptr, typeof(tSdkCameraCapbility));
Marshal.FreeHGlobal(ptr);
Marshal.FreeHGlobal(m_ImageBuffer);
m_ImageBuffer = Marshal.AllocHGlobal(tCameraCapability.sResolutionRange.iWidthMax * tCameraCapability.sResolutionRange.iHeightMax * 3 + 1024);
m_ImageBufferSnapshot = Marshal.AllocHGlobal(tCameraCapability.sResolutionRange.iWidthMax * tCameraCapability.sResolutionRange.iHeightMax * 3 + 1024);
//初始化显示模块，使用SDK内部封装好的显示接口
MvApi.CameraDisplayInit(m_hCamera, pic_Image.Handle);
MvApi.CameraSetDisplaySize(m_hCamera, pic_Image.Width, pic_Image.Height);
//设置抓拍通道的分辨率。
tSdkImageResolution tResolution;
tResolution.fZoomScale = 1.0F;
tResolution.iVOffset = 0;
tResolution.iHOffset = 0;
tResolution.uBinMode = 0;
tResolution.uSkipMode = 0;
tResolution.iWidth = tCameraCapability.sResolutionRange.iWidthMax;
tResolution.iHeight = tCameraCapability.sResolutionRange.iHeightMax;
//tResolution.iIndex = 0xff;表示自定义分辨率,如果tResolution.iWidth和tResolution.iHeight
//定义为0，则表示跟随预览通道的分辨率进行抓拍。抓拍通道的分辨率可以动态更改。
//本例中将抓拍分辨率固定为最大分辨率。
tResolution.iIndex = 0xff;
tResolution.acDescription = new byte[32];//描述信息可以不设置
MvApi.CameraSetResolutionForSnap(m_hCamera, ref tResolution);
//让SDK来根据相机的型号动态创建该相机的配置窗口。
MvApi.CameraCreateSettingPage(m_hCamera, this.Handle, tCameraDevInfoList[0].acFriendlyName, /*SettingPageMsgCalBack*/ null, /*m_iSettingPageMsgCallbackCtx*/ (IntPtr)null, 0);
//两种方式来获得预览图像，设置回调函数或者使用定时器或者独立线程的方式，
//主动调用CameraGetImageBuffer接口来抓图。
//本例中仅演示了两种的方式,注意，两种方式也可以同时使用，但是在回调函数中，
//不要使用CameraGetImageBuffer，否则会造成死锁现象。
#if USE_CALL_BACK
MvApi.CameraSetCallbackFunction(m_hCamera, ImageCaptureCallback, m_iCaptureCallbackCtx, ref pCaptureCallOld);
#else //如果需要采用多线程，使用下面的方式
m_bExitCaptureThread = false;
m_tCaptureThread = new Thread(new ThreadStart(CaptureThreadProc));
m_tCaptureThread.Start();
#endif
return(true);
}
else
{
m_hCamera = 0;
//StateLabel.Text = "相机初始化失败";
return(false);
}
}
}
return(false);
}
private bool InitCamera()
{
CameraSdkStatus status;
tSdkCameraDevInfo[] tCameraDevInfoList;
status = MvApi.CameraEnumerateDevice(out tCameraDevInfoList);
int iCameraCounts = (tCameraDevInfoList != null ? tCameraDevInfoList.Length : 0);
if (iCameraCounts >= 2)//此时iCameraCounts返回了实际连接的相机个数。如果大于2，则初始化前2个相机
{
if (MvApi.CameraInit(ref tCameraDevInfoList[0], -1, -1, ref m_hCamera1) == CameraSdkStatus.CAMERA_STATUS_SUCCESS)
{
//获得相机特性描述
MvApi.CameraGetCapability(m_hCamera1, out tCameraCapability1);
m_ImageBuffer1 = Marshal.AllocHGlobal(tCameraCapability1.sResolutionRange.iWidthMax * tCameraCapability1.sResolutionRange.iHeightMax * 3 + 1024);
//初始化显示模块，使用SDK内部封装好的显示接口
MvApi.CameraDisplayInit(m_hCamera1, PreviewBox.Handle);
MvApi.CameraSetDisplaySize(m_hCamera1, PreviewBox.Width, PreviewBox.Height);
//让SDK来根据相机的型号动态创建该相机的配置窗口。
MvApi.CameraCreateSettingPage(m_hCamera1, this.Handle, tCameraDevInfoList[0].acFriendlyName, /*SettingPageMsgCalBack*/ null, /*m_iSettingPageMsgCallbackCtx*/ (IntPtr)null, 0);
MvApi.CameraPlay(m_hCamera1);
BtnPlay.Text = "Pause";
//两种方式来获得预览图像，设置回调函数或者使用定时器或者独立线程的方式，
//主动调用CameraGetImageBuffer接口来抓图。
//本例中仅演示了两种的方式,注意，两种方式也可以同时使用，但是在回调函数中，
//不要使用CameraGetImageBuffer，否则会造成死锁现象。
m_bExitCaptureThread1 = false;
m_tCaptureThread1 = new Thread(new ThreadStart(CaptureThreadProc1));
m_tCaptureThread1.Start();
}
else
{
m_hCamera1 = 0;
StateLabel.Text = "Camera 1 init error";
return(false);
}
if (MvApi.CameraInit(ref tCameraDevInfoList[1], -1, -1, ref m_hCamera2) == CameraSdkStatus.CAMERA_STATUS_SUCCESS)
{
//获得相机特性描述
MvApi.CameraGetCapability(m_hCamera2, out tCameraCapability2);
m_ImageBuffer2 = Marshal.AllocHGlobal(tCameraCapability2.sResolutionRange.iWidthMax * tCameraCapability2.sResolutionRange.iHeightMax * 3 + 1024);
//初始化显示模块，使用SDK内部封装好的显示接口
MvApi.CameraDisplayInit(m_hCamera2, PreviewBox2.Handle);
MvApi.CameraSetDisplaySize(m_hCamera2, PreviewBox2.Width, PreviewBox2.Height);
//让SDK来根据相机的型号动态创建该相机的配置窗口。
MvApi.CameraCreateSettingPage(m_hCamera2, this.Handle, tCameraDevInfoList[1].acFriendlyName, /*SettingPageMsgCalBack*/ null, /*m_iSettingPageMsgCallbackCtx*/ (IntPtr)null, 0);
MvApi.CameraPlay(m_hCamera2);
BtnPlay2.Text = "Pause";
m_bExitCaptureThread2 = false;
m_tCaptureThread2 = new Thread(new ThreadStart(CaptureThreadProc2));
m_tCaptureThread2.Start();
}
else
{
m_hCamera2 = 0;
StateLabel.Text = "Camera 2 init error";
return(false);
}
return(true);
}
return(false);
}