-public:
- virtual void button_press(int, int, unsigned);
- virtual void button_release(int, int, unsigned);
- virtual void pointer_motion(int, int);
- virtual void pointer_leave();
- virtual void key_press(unsigned, unsigned);
- virtual void key_release(unsigned, unsigned);
- virtual void character(wchar_t);
- virtual void focus_out();
-protected:
- virtual void on_geometry_change();