void sys_watch(win_t *win, Key_t key, mod_t mod);
+void sys_unwatch(win_t *win, Key_t key, mod_t mod);
+
void sys_move(win_t *win, int x, int y, int w, int h);
void sys_raise(win_t *win);
void sys_foreach(win_t *win);
+list_t *sys_info(win_t *win);
+
win_t *sys_init(void);
void sys_run(win_t *root);