| Microsoft DirectX 8.1 (Visual Basic) | 
Retrieves information about an effect.
object.GetParameters(effectinfo As DIEFFECT)
If the method fails, an error is raised and Err.Number may be set to one of the following:
| DIERR_INVALIDPARAM | 
| DIERR_MOREDATA | 
| DIERR_NOTINITIALIZED |