Gtk.UIManager.prototype.ensure_update

function ensure_update():void {
    // Gjs wrapper for gtk_ui_manager_ensure_update()
}

Makes sure that all pending updates to the UI have been completed.

This may occasionally be necessary, since Gtk.UIManager updates the UI in an idle function. A typical example where this function is useful is to enforce that the menubar and toolbar have been added to the main window before showing it: |[ gtk_container_add (GTK_CONTAINER (window), vbox); g_signal_connect (merge, "add-widget", G_CALLBACK (add_widget), vbox); gtk_ui_manager_add_ui_from_file (merge, "my-menus"); gtk_ui_manager_add_ui_from_file (merge, "my-toolbars"); gtk_ui_manager_ensure_update (merge); gtk_widget_show (window); ]|

Since 2.4