extern void (*arc_draw_func)();
extern void (*box_draw_func)();
extern void (*picture_draw_func)();
extern void (*circle_draw_func)();
extern void (*complex_draw_func)();
extern void (*line_draw_func)();
extern void (*net_draw_func)();
extern void (*bus_draw_func)();
extern void (*text_draw_func)();
extern void (*pin_draw_func)();
extern void (*path_draw_func)();
extern void (*select_func)();
extern void (*x_log_update_func)();

