GtkMenu: Document that gtk_widget_insert_action_group() can be used

diff --git a/gtk/gtkmenu.c b/gtk/gtkmenu.c
index 6a4f01eb605457de0c2c54f2018760e4169b0d14..f6b0c7a9cb83a486f8336c24ba90ec328b007e45 100644 (file)
--- a/gtk/gtkmenu.c
+++ b/gtk/gtkmenu.c
@@ -5614,6 +5614,9 @@ gtk_menu_get_reserve_toggle_size (GtkMenu *menu)
  * by means of being attached to a widget (see gtk_menu_attach_to_widget())
  * that is contained within the #GtkApplicationWindows widget hierarchy.
  *
+ * Actions can also be added using gtk_widget_insert_action_group() on menu's
+ * attach widget or any if its parent widgets.
+ *
  * Returns: a new #GtkMenu
  *
  * Since: 3.4