// virtual bool MacSetPortDrawingParams( const Point & localOrigin, const Rect & clipRect, WindowRef window , wxWindowMac* rootwin ) ;
// virtual void MacGetPortParams(Point* localOrigin, Rect* clipRect, WindowRef *window , wxWindowMac** rootwin ) ;
// virtual void MacGetPortClientParams(Point* localOrigin, Rect* clipRect, WindowRef *window , wxWindowMac** rootwin) ;
const wxBrush& MacGetBackgroundBrush() ;
// virtual bool MacSetPortDrawingParams( const Point & localOrigin, const Rect & clipRect, WindowRef window , wxWindowMac* rootwin ) ;
// virtual void MacGetPortParams(Point* localOrigin, Rect* clipRect, WindowRef *window , wxWindowMac** rootwin ) ;
// virtual void MacGetPortClientParams(Point* localOrigin, Rect* clipRect, WindowRef *window , wxWindowMac** rootwin) ;
const wxBrush& MacGetBackgroundBrush() ;