void GetConvertSourceVideoType(IltmfConvert *pConvert)
{
TCHAR szVideoType[MAX_PATH];
BSTR bstr = NULL;
// get the source video type name
pConvert->get_SourceVideoType(&bstr);
// format display string
_stprintf(szVideoType, _T("Source video type GUID is %ls"), bstr);
// display the source video type
MessageBox(NULL, szVideoType, TEXT("Source Video Type"), MB_OK);
// free the bstr
SysFreeString(bstr);
}
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