Function fltk_sys::menu::Fl_Menu_Button_add

pub unsafe extern "C" fn Fl_Menu_Button_add(
    arg1: *mut Fl_Menu_Button, 
    name: *const c_char, 
    shortcut: c_int, 
    arg2: Fl_Callback, 
    arg3: *mut c_void, 
    arg4: c_int
)