Function gtk4_sys::gtk_menu_button_get_use_underline 
source · pub unsafe extern "C" fn gtk_menu_button_get_use_underline(
    menu_button: *mut GtkMenuButton
) -> gbooleanpub unsafe extern "C" fn gtk_menu_button_get_use_underline(
    menu_button: *mut GtkMenuButton
) -> gboolean