This topic documents a feature of Visual Filters and Transitions, which is deprecated as of Windows Internet Explorer 9 and obsolete as of Internet Explorer 10.
Retrieves the opacity adjustment for the lookup table.
HRESULT GetOpacity( float *pVal );
- [out] Pointer to the opacity adjustment for the lookup table.
Returns an HRESULT value that depends on the implementation of the interface.
Each value of alpha in the lookup table is multiplied by this value for opacity.