867     STDMETHODIMP GetUnknown(REFGUID guidKey, REFIID riid, LPVOID* ppv)  in GetUnknown()  function in CBaseAttributes
870         return _spAttributes->GetUnknown(guidKey, riid, ppv);  in GetUnknown()
1192 …hr = CBaseAttributes<>::GetUnknown(MF_STREAMSINK_MEDIASINKINTERFACE, __uuidof(IMFMediaSink), (LPVO…  in Initialize()
1298 …hr = m_pParent->GetUnknown(MF_MEDIASINK_SAMPLEGRABBERCALLBACK, IID_IMFSampleGrabberSinkCallback, (…  in Shutdown()
1329 …hr = CBaseAttributes<>::GetUnknown(MF_STREAMSINK_MEDIASINKINTERFACE, __uuidof(IMFMediaSink), (LPVO…  in GetMediaSink()
1421 …hr = m_pParent->GetUnknown(MF_MEDIASINK_SAMPLEGRABBERCALLBACK, IID_IMFSampleGrabberSinkCallback, (…  in ProcessSample()
1636 …   hr = m_pParent->GetUnknown(MF_MEDIASINK_PREFERREDTYPE, __uuidof(IMFMediaType), (LPVOID*)&pType);  in IsMediaTypeSupported()
1715 …   hr = m_pParent->GetUnknown(MF_MEDIASINK_PREFERREDTYPE, __uuidof(IMFMediaType), (LPVOID*)&pType);  in GetMediaTypeByIndex()
1839 …   hr = m_pParent->GetUnknown(MF_MEDIASINK_PREFERREDTYPE, __uuidof(IMFMediaType), (LPVOID*)&pType);  in GetMajorType()
3094 …hr = GetUnknown(MF_MEDIASINK_SAMPLEGRABBERCALLBACK, IID_IMFSampleGrabberSinkCallback, (LPVOID*)pSa…  in SetPresentationClock()
3137 …hr = CBaseAttributes<>::GetUnknown(MF_MEDIASINK_PREFERREDTYPE, __uuidof(IMFMediaType), (LPVOID*)pT…  in Shutdown()
3246 …hr = GetUnknown(MF_MEDIASINK_SAMPLEGRABBERCALLBACK, IID_IMFSampleGrabberSinkCallback, (LPVOID*)pSa…  in OnClockStart()
3266 …hr = GetUnknown(MF_MEDIASINK_SAMPLEGRABBERCALLBACK, IID_IMFSampleGrabberSinkCallback, (LPVOID*)pSa…  in OnClockStop()
3278 …hr = GetUnknown(MF_MEDIASINK_SAMPLEGRABBERCALLBACK, IID_IMFSampleGrabberSinkCallback, (LPVOID*)pSa…  in OnClockPause()
3289 …hr = GetUnknown(MF_MEDIASINK_SAMPLEGRABBERCALLBACK, IID_IMFSampleGrabberSinkCallback, (LPVOID*)pSa…  in OnClockRestart()
3301 …hr = GetUnknown(MF_MEDIASINK_SAMPLEGRABBERCALLBACK, IID_IMFSampleGrabberSinkCallback, (LPVOID*)pSa…  in OnClockSetRate()