When changes are made, this determines whether all viewports are updated or just the focused view.
HRESULT get_RedrawAllViewports( VARIANT_BOOL* pVal ); HRESULT put_RedrawAllViewports( VARIANT_BOOL newVal );
HRESULT get_RedrawAllViewports( VARIANT_BOOL* pVal );
HRESULT put_RedrawAllViewports( VARIANT_BOOL newVal );