extern int required_matrix_height P_ ((struct window *));
extern int estimate_mode_line_height P_ ((struct frame *, enum face_id));
extern Lisp_Object mode_line_string P_ ((struct window *, int, int, int, int *));
+extern Lisp_Object marginal_area_string P_ ((struct window *, int, int, int, int *));
extern void redraw_frame P_ ((struct frame *));
extern void redraw_garbaged_frames P_ ((void));
extern void cancel_line P_ ((int, struct frame *));