extern void x_set_window_size P_ ((struct frame *, int, int, int));
extern void x_set_mouse_position P_ ((struct frame *, int, int));
extern void x_set_mouse_pixel_position P_ ((struct frame *, int, int));
extern void x_set_window_size P_ ((struct frame *, int, int, int));
extern void x_set_mouse_position P_ ((struct frame *, int, int));
extern void x_set_mouse_pixel_position P_ ((struct frame *, int, int));