Gets the medium at the position number that is indicated by an index in the current list.
HRESULT item( long index, BSTR *pbstrMedium );
- [in] An index into the collection.
- [out, retval] The medium in the media list at the position number that is indicated by index, or NULL if that is not a valid index.
Returns S_OK if successful, or an error value otherwise.
If index is greater than or equal to the number of media in the list, this method returns NULL.