/// <summary>
/// 打开视频设备
/// </summary>
public void StartWebCam()
{
byte[] lpszName = new byte[100];
byte[] lpszVer = new byte[100];
UCVideoAPI.capGetDriverDescriptionA(0, lpszName, 100, lpszVer, 100);
this.lwndC = UCVideoAPI.capCreateCaptureWindowA(lpszName, UCVideoAPI.WS_CHILD | UCVideoAPI.WS_VISIBLE, 0, 0, mWidth, mHeight, mControlPtr, 0);
if (UCVideoAPI.SendMessage(lwndC, UCVideoAPI.WM_CAP_DRIVER_CONNECT, 0, 0))
{
UCVideoAPI.SendMessage(lwndC, UCVideoAPI.WM_CAP_SET_PREVIEWRATE, 100, 0);
UCVideoAPI.SendMessage(lwndC, UCVideoAPI.WM_CAP_SET_PREVIEW, true, 0);
}
}
/// <summary>
///拍照
/// </summary>
/// <param name=”path”>要保存bmp文件的路径</param>
public void GrabImage(IntPtr hWndC, string path)
{
IntPtr hBmp = Marshal.StringToHGlobalAnsi(path);
UCVideoAPI.SendMessage(lwndC, UCVideoAPI.WM_CAP_SAVEDIB, 0, hBmp.ToInt32());
}
/// <summary>
/// 关闭视频设备
/// </summary>
public void CloseWebcam()
{
UCVideoAPI.SendMessage(lwndC, UCVideoAPI.WM_CAP_DRIVER_DISCONNECT, 0, 0);
}