Function gtk4_sys::gtk_widget_class_query_action

pub unsafe extern "C" fn gtk_widget_class_query_action(
    widget_class: *mut GtkWidgetClass, 
    index_: c_uint, 
    owner: *mut GType, 
    action_name: *mut *const c_char, 
    parameter_type: *mut *const GVariantType, 
    property_name: *mut *const c_char
) -> gboolean