Button* button_new(Manager *m, const char *name);
void button_free(Button*b);
int button_open(Button *b);
Button* button_new(Manager *m, const char *name);
void button_free(Button*b);
int button_open(Button *b);
int button_recheck(Button *b);
int button_set_seat(Button *b, const char *sn);
int button_recheck(Button *b);
int button_set_seat(Button *b, const char *sn);