pub unsafe extern "C" fn Fl_Fill_Slider_set_callback(
arg1: *mut Fl_Fill_Slider,
arg2: Fl_Callback,
arg3: *mut c_void,
)
pub unsafe extern "C" fn Fl_Fill_Slider_set_callback(
arg1: *mut Fl_Fill_Slider,
arg2: Fl_Callback,
arg3: *mut c_void,
)