rb_define_method (cWindow, "lower", c_lower, 0);
rb_define_method (cWindow, "move", c_move, 2);
rb_define_method (cWindow, "resize", c_resize, 2);
rb_define_method (cWindow, "lower", c_lower, 0);
rb_define_method (cWindow, "move", c_move, 2);
rb_define_method (cWindow, "resize", c_resize, 2);