private void FrameCallBack(IntPtr lwnd, IntPtr lpVHdr)
{
ClassShowVideo.VIDEOHDR videoHeader = new ClassShowVideo.VIDEOHDR();
byte[] VideoData;
videoHeader = (ClassShowVideo.VIDEOHDR)ClassShowVideo.GetStructure(lpVHdr, videoHeader);
VideoData = new byte[videoHeader.dwBytesUsed];
ClassShowVideo.Copy(videoHeader.lpData, VideoData);
if (this.RecievedFrame != null)
{
this.RecievedFrame(VideoData);
}
}
// start the web camera
public void StartWebCam()
{
byte[] lpszName = new byte[100];
byte[] lpszVer = new byte[100];
ClassShowVideo.capGetDriverDescriptionA(0, lpszName, 100, lpszVer, 100);
this.lwndC = ClassShowVideo.capCreateCaptureWindowA(lpszName, ClassShowVideo.WS_VISIBLE + ClassShowVideo.WS_CHILD, 0, 0, mWidth, mHeight, mControlPtr, 0);
if (this.capDriverConnect(this.lwndC, 0))
{
this.capPreviewRate(this.lwndC, 66);
this.capPreview(this.lwndC, true);
ClassShowVideo.BITMAPINFO bitmapinfo = new ClassShowVideo.BITMAPINFO();
bitmapinfo.bmiHeader.biSize = ClassShowVideo.SizeOf(bitmapinfo.bmiHeader);
bitmapinfo.bmiHeader.biWidth = 352;
bitmapinfo.bmiHeader.biHeight = 288;
bitmapinfo.bmiHeader.biPlanes = 1;
bitmapinfo.bmiHeader.biBitCount = 24;
this.capSetVideoFormat(this.lwndC, ref bitmapinfo, ClassShowVideo.SizeOf(bitmapinfo));
this.mFrameEventHandler = new ClassShowVideo.FrameEventHandler(FrameCallBack);
this.capSetCallbackOnFrame(this.lwndC, this.mFrameEventHandler);
ClassShowVideo.SetWindowPos(this.lwndC, 0, 0, 0, mWidth, mHeight, 6);
}
}
private bool capSetVideoFormat(IntPtr hCapWnd, ref ClassShowVideo.BITMAPINFO BmpFormat, int CapFormatSize)
{
return(ClassShowVideo.SendMessage(hCapWnd, ClassShowVideo.WM_CAP_SET_VIDEOFORMAT, CapFormatSize, ref BmpFormat));
}
private bool capSetCallbackOnFrame(IntPtr lwnd, ClassShowVideo.FrameEventHandler lpProc)
{
return(ClassShowVideo.SendMessage(lwnd, ClassShowVideo.WM_CAP_SET_CALLBACK_FRAME, 0, lpProc));
}
private bool capPreviewRate(IntPtr lwnd, short wMS)
{
return(ClassShowVideo.SendMessage(lwnd, ClassShowVideo.WM_CAP_SET_PREVIEWRATE, wMS, 0));
}
private bool capPreview(IntPtr lwnd, bool f)
{
return(ClassShowVideo.SendMessage(lwnd, ClassShowVideo.WM_CAP_SET_PREVIEW, f, 0));
}
private bool capDriverDisconnect(IntPtr lwnd)
{
return(ClassShowVideo.SendMessage(lwnd, ClassShowVideo.WM_CAP_DRIVER_DISCONNECT, 0, 0));
}
// private functions
private bool capDriverConnect(IntPtr lwnd, short i)
{
return(ClassShowVideo.SendMessage(lwnd, ClassShowVideo.WM_CAP_DRIVER_CONNECT, i, 0));
}