void ttclient_OnUserVideoFrame(int nUserID, int nStreamID)
{
if (userid != nUserID)
{
return;
}
if (bmp != null)
{
bmp.Dispose();
}
bmp = null;
//Release shared memory
ttclient.ReleaseUserVideoCaptureFrame(vidframe);
vidframe = ttclient.AcquireUserVideoCaptureFrame(nUserID, out bmp);
Invalidate();
}