* automatically show the menu as part of a menubar. This behaviour
* can be overridden with the #GtkApplicationWindow:show-menubar
* property.
+ *
+ * <example><title>A GtkApplicationWindow with a menubar</title>
+ * <programlisting><![CDATA[
+ * app = gtk_application_new ();
+ *
+ * builder = gtk_builder_new ();
+ * gtk_builder_add_from_string (builder,
+ * "<interface>"
+ * " <menu id='menubar'>"
+ * " <submenu label='_Edit'>"
+ * " <item label='_Copy' action='win.copy'/>"
+ * " <item label='_Paste' action='win.paste'/>"
+ * " </submenu>"
+ * " </menu>"
+ * "</interface>");
+ * g_application_set_menubar (G_APPLICATION (app),
+ * G_MENU_MODEL (gtk_builder_get_object (builder, "menubar")));
+ * g_object_unref (builder);
+ *
+ * ...
+ *
+ * window = gtk_application_window_new (app);
+ * ]]>
+ * </programlisting>
+ * </example>
*/
struct _GtkApplicationWindowPrivate
{