|Microsoft DirectX 9.0|
Retrieves the globally unique identifier (GUID) for the effect represented by the IDirectInputEffect object.
LPGUID pguid );
- GUID structure that is filled by the method.
If the method succeeds, the return value is DI_OK.
If the method fails, the return value can be one of the following error values:
DIERR_INVALIDPARAM An invalid parameter was passed to the returning function, or the object was not in a state that permitted the function to be called. This value is equal to the E_INVALIDARG standard Component Object Model (COM) return value. DIERR_NOTINITIALIZED The object has not been initialized.
Additional information about the effect can be obtained by passing the GUID to IDirectInputDevice8::GetEffectInfo.