void TestSamples() { int hr; int iSize = 0; IMediaSample pSample; hr = m_isg.SetBufferSamples(true); DsError.ThrowExceptionForHR(hr); hr = m_imc.Run(); Marshal.ThrowExceptionForHR(hr); // Wait a moment for the graph to start running Thread.Sleep(500); // Get a buffer (needs SetBufferSamples(true) hr = m_isg.GetCurrentBuffer(ref iSize, IntPtr.Zero); DsError.ThrowExceptionForHR(hr); Debug.Assert(iSize > 0, "GetCurrentBuffer"); hr = m_isg.GetCurrentSample(out pSample); // E_NOTIMPL - Nothing to test if (hr != -2147467263) { DsError.ThrowExceptionForHR(hr); } hr = m_imc.Stop(); Marshal.ThrowExceptionForHR(hr); }