private void TestLogError() { int hr; IGraphBuilder fg; IRenderEngine ire = new RenderEngine() as IRenderEngine; hr = ire.SetTimelineObject(m_pTimeline); DESError.ThrowExceptionForHR(hr); hr = ire.ConnectFrontEnd(); DESError.ThrowExceptionForHR(hr); hr = ire.RenderOutputPins(); DESError.ThrowExceptionForHR(hr); hr = ire.GetFilterGraph(out fg); DESError.ThrowExceptionForHR(hr); hr = ((IMediaControl)fg).Run(); DESError.ThrowExceptionForHR(hr); IMediaEvent ime = fg as IMediaEvent; EventCode evCode; const int E_Abort = unchecked ((int)0x80004004); do { System.Windows.Forms.Application.DoEvents(); System.Threading.Thread.Sleep(100); hr = ime.WaitForCompletion(1000, out evCode); } while (evCode == (EventCode)E_Abort); Debug.Assert(m_Called == true, "LogError"); }