Widget_t * add_vslider(Widget_t *parent, const char *label, int x, int y, int width, int height)
add_vslider - add a vertical slider to a Widget_t connect to func.value_changed_callback to implement...
Widget_t * add_hslider(Widget_t *parent, const char *label, int x, int y, int width, int height)
add_hslider - add a horizontal slider to a Widget_t connect to func.value_changed_callback to impleme...