BOOLEAN
SetupDiGetClassDescription(
IN LPGUID ClassGuid,
OUT PTSTR ClassDescription,
IN DWORD ClassDescriptionSize,
OUT PDWORD RequiredSize, /* optional */
);
SetupDiGetClassDescription retrieves the class description associated with the specified class GUID.
The function returns TRUE if it is successful. Otherwise it returns FALSE and the logged error can be retrieved with a call to GetLastError.