virtual void DoGetPosition(int *x, int *y) const;
virtual void DoGetSize(int *width, int *height) const;
virtual void DoMoveWindow(int x, int y, int width, int height);
virtual void DoGetPosition(int *x, int *y) const;
virtual void DoGetSize(int *width, int *height) const;
virtual void DoMoveWindow(int x, int y, int width, int height);