Glib::RefPtr<Gtk::ActionGroup> actiongroup = Gtk::ActionGroup::create();
actiongroup->add( Gtk::Action::create("MenuFile", "_Arbol") );
actiongroup->add( Gtk::Action::create("Nuevo", Gtk::Stock::NEW), &nuevo_arbol);
actiongroup->add( Gtk::Action::create("Salir", Gtk::Stock::QUIT), Gtk::AccelKey ("<control>q"), &Gtk::Main::quit);
Glib::RefPtr<Gtk::ActionGroup> actiongroup = Gtk::ActionGroup::create();
actiongroup->add( Gtk::Action::create("MenuFile", "_Arbol") );
actiongroup->add( Gtk::Action::create("Nuevo", Gtk::Stock::NEW), &nuevo_arbol);
actiongroup->add( Gtk::Action::create("Salir", Gtk::Stock::QUIT), Gtk::AccelKey ("<control>q"), &Gtk::Main::quit);