Warning
GtkUIManager::add-widget is deprecated and should not be used in newly-written code. 3.10
The ::add-widget signal is emitted for each generated menubar and toolbar.
It is not emitted for generated popup menus, which can be obtained by
gtk_ui_manager_get_widget().
Since 2.4
Warning GtkUIManager::add-widget is deprecated and should not be used in newly-written code. 3.10 The ::add-widget signal is emitted for each generated menubar and toolbar. It is not emitted for generated popup menus, which can be obtained by gtk_ui_manager_get_widget(). Since 2.4