void SetCaptureTVTunerMode(IltmmCapture *pCapture) { IltmmTVTuner* pTVTuner; // try to get the tuner if available HRESULT hr = pCapture->get_TVTuner(&pTVTuner); if (SUCCEEDED(hr) && pTVTuner) { // do something with the tv tuner pTVTuner->put_Mode(ltmmTUNER_MODE_TV); // release the tv tuner object pTVTuner->Release(); } }