SetupDiClassGuidsFromName

BOOLEAN
    SetupDiClassGuidsFromName(
        IN PCTSTR  ClassName,
        OUT LPGUID  ClassGuidList,
        IN DWORD  ClassGuidListSize,
        OUT PDWORD  RequiredSize
        );

SetupDiClassGuidsFromName retrieves the GUID(s) associated with the specified class name. This list is built based on the classes currently installed on the system.

Parameters

ClassName

Supplies the name of the class for which to retrieve the class GUID.

ClassGuidList

Supplies a pointer to an array to receive the list of GUIDs associated with the specified class name.

ClassGuidListSize

Supplies the number of GUIDs in the ClassGuidList array.

RequiredSize

Supplies a pointer to a variable that receives the number of GUIDs associated with the class name. If this number is greater than the size of the ClassGuidList buffer, the number indicates how large the array must be in order to store all the GUIDs.

Return Value

The function returns TRUE if it is successful. Otherwise it returns FALSE and the logged error can be retrieved with a call to GetLastError.

See Also

SetupDiClassNameFromGuid