gtk:settings-gtk-shell-shows-app-menu (object)

object -- a gtk:settings object
setting -- a boolean whether the environment is displaying the application menu

The accessor for the gtk-shell-shows-app-menu slot gets or sets whether the desktop environment is displaying the application menu. Set to true if the desktop environment is displaying the application menu, false if the application should display it itself. This property is deprecated since 4.20. This setting is not relevant anymore.