Retrieves a pointer to a supported interface using IStream::QueryInterface.
_StreamQueryInterface(ByRef $oStream, $sIID)
| $oStream | IStream COM object. |
| $sIID | String representation of the interface ID (GUID). |
| Success: | Pointer to the requested interface. |
| Failure: | 0, sets @error to: 1 - Invalid stream object. 2 - Invalid IID. 3 - QueryInterface failed (HRESULT in @extended). |