void CheckVideoCaptureStreamType(IltmmCapture *pCapture) { BSTR strType; // Get the capture stream type pCapture->get_VideoCaptureStreamType(&strType); if (_wcsicmp(L"MEDIATYPE_Stream", OLE2T(strType)) != 0) { // the capture stream type is not MEDIATYPE_Stream, do something } // release the string SysFreeString(strType); }