private void TestFPS() { int hr; const double FPS = 13.14; double d; hr = m_pSource1Src.SetDefaultFPS(FPS); DESError.ThrowExceptionForHR(hr); hr = m_pSource1Src.GetDefaultFPS(out d); DESError.ThrowExceptionForHR(hr); Debug.Assert(d == FPS, "TestFPS"); }