| Microsoft DirectX 9.0 | 
This topic applies to Windows XP only.
The get__ClassID method retrieves the device's class identifier (CLSID) as a GUID.
Syntax
HRESULT get__ClassID(
  GUID*  pClsid
);
Parameters
pClsid
[out] Pointer to a variable of type GUID that receives the CLSID.
Return Values
Returns an HRESULT value. Possible values include the following.
| Value | Description | 
| S_OK | Success. | 
| E_POINTER | NULL pointer argument. | 
See Also