IltmmPlay::get_SourceVideoType Example for C++

void GetPlayerSourceVideoType(IltmmPlay *pPlay) 
{ 
   BSTR     bstrSourceVideoType; 
   CString  strSourceVideoType; 
 
   // try to get the source video type GUID string 
   HRESULT hr = pPlay->get_SourceVideoType(&bstrSourceVideoType); 
 
   // if we were successful display the guid 
   if (SUCCEEDED(hr)) 
   { 
      strSourceVideoType = "Source Video Type GUID is "; 
      strSourceVideoType += bstrSourceVideoType; 
      MessageBox(NULL, strSourceVideoType, TEXT("Source Video Type"), MB_OK); 
      SysFreeString(bstrSourceVideoType); 
   } 
   else 
   { 
      MessageBox(NULL, TEXT("Unable to get the source video type GUID"), TEXT("Source Video Type"), MB_OK); 
   } 
} 
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