#define MAKE_MEDIA_PATH(pFileName) (TEXT("C:\\LEADTOOLS 17.5\\Media\\")TEXT(pFileName))
void OnSetFolderName(ILMDVRSink* pSink)
{
long index = 0;
BSTR path = ::SysAllocString(MAKE_MEDIA_PATH(""));
pSink->put_FolderName(index, path);
::SysFreeString(path);
}