/// <summary>
/// 开启摄像头
/// </summary>
public void StartWebCam()
{
var lpszName = new byte[100];
var lpszVer = new byte[100];
AviCapture.capGetDriverDescriptionA(1, lpszName, 100, lpszVer, 100);
this._lwndC = AviCapture.capCreateCaptureWindowA(lpszName, AviCapture.WsVisible + AviCapture.WsChild, 0, 0, _mWidth, _mHeight, _mControlPtr, 0);
if (this.CapDriverConnect(this._lwndC, 0))
{
this.CapPreviewRate(this._lwndC, 66);
this.CapPreview(this._lwndC, true);
this.CapOverlay(this._lwndC, true);
var bitmapinfo = new AviCapture.Bitmapinfo();
bitmapinfo.bmiHeader.biSize = AviCapture.SizeOf(bitmapinfo.bmiHeader);
bitmapinfo.bmiHeader.biWidth = this._mWidth;
bitmapinfo.bmiHeader.biHeight = this._mHeight;
bitmapinfo.bmiHeader.biPlanes = 1;
bitmapinfo.bmiHeader.biBitCount = 24;
this.CapSetVideoFormat(this._lwndC, ref bitmapinfo, AviCapture.SizeOf(bitmapinfo));
this._mFrameEventHandler = new AviCapture.FrameEventHandler(FrameCallBack);
this.CapSetCallbackOnFrame(this._lwndC, this._mFrameEventHandler);
AviCapture.SetWindowPos(this._lwndC, 0, 0, 0, _mWidth, _mHeight, 6);
}
}
private bool CapSetVideoFormat(IntPtr hCapWnd, ref AviCapture.Bitmapinfo bmpFormat, int capFormatSize)
{
return(AviCapture.SendMessage(hCapWnd, AviCapture.WmCapSetVideoformat, capFormatSize, ref bmpFormat));
}