IltmmConvert::get_SourceVideoType Example for C

LPTSTR OLE2T(LPCOLESTR lpw) 
{ 
   static TCHAR lpt[512]; 
 
   if(!lpw) 
      return NULL; 
 
   lpt[0] = _T('\0'); 
 
   WideCharToMultiByte(CP_ACP, 0, lpw, -1, lpt, 512, NULL, NULL); 
   return lpt; 
} 
 
void IltmmConvert_get_SourceVideoType_Example (IltmmConvert* pConvert) 
{ 
   char szVideoType[256]; 
   BSTR bstr; 
 
   IltmmConvert_get_SourceVideoType(pConvert, &bstr); 
 
   strcpy(szVideoType, "Source video type GUID is "); 
 
   strcat(szVideoType, OLE2T(bstr)); 
 
   MessageBox(NULL, szVideoType, NULL, MB_OK); 
 
   SysFreeString(bstr); 
} 
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