void ConnectFilters()
{
int hr = 0;
hr = captureGraphBuilder.RenderStream(PinCategory.Capture, MediaType.Video, fsourceBaseFilter, grabberFilter, nullRendererFilter);
DsError.ThrowExceptionForHR(hr);
// Get size of connected media
// After we connect the grabber to the source filter,
// we can ask it what size it actually has, and what
// media type.
GetCaptureSize();
// If we were not using a null renderer, we would have to do
// the following in order to turn off the default display window
//win.set_AutoShow(false);
//win = null;
// But, since we're using a null renderer, we don't have to do anything
}