SetupDiGetClassDescriptionW function (setupapi.h)
The SetupDiGetClassDescription function retrieves the class description associated with the specified setup class GUID.
Syntax
WINSETUPAPI BOOL SetupDiGetClassDescriptionW(
[in] const GUID *ClassGuid,
[out] PWSTR ClassDescription,
[in] DWORD ClassDescriptionSize,
[out, optional] PDWORD RequiredSize
);
Parameters
[in] ClassGuid
The GUID of the setup class whose description is to be retrieved.
[out] ClassDescription
A pointer to a character buffer that receives the class description.
[in] ClassDescriptionSize
The size, in characters, of the ClassDescription buffer.
[out, optional] RequiredSize
A pointer to variable of type DWORD that receives the size, in characters, that is required to store the class description (including a NULL terminator). RequiredSize is always less than LINE_LEN. This parameter is optional and can be NULL.
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.
Remarks
Call SetupDiGetClassDescriptionEx to retrieve the description of a setup class installed on a remote computer.
Note
The setupapi.h header defines SetupDiGetClassDescription as an alias that automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that is not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see Conventions for Function Prototypes.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Available in Microsoft Windows 2000 and later versions of Windows. |
| Target Platform | Desktop |
| Header | setupapi.h (include Setupapi.h) |
| Library | Setupapi.lib |
| API set | ext-ms-win-setupapi-classinstallers-l1-1-2 (introduced in Windows 10, version 10.0.14393) |