Specifies the name of the action with which this widget should be
associated. If @action_name is %NULL then the widget will be
unassociated from any previous action.
Usually this function is used when the widget is located (or will be
located) within the hierarchy of a #GtkApplicationWindow.
Names are of the form “win.save” or “app.quit” for actions on the
containing #GtkApplicationWindow or its associated #GtkApplication,
respectively. This is the same form used for actions in the #GMenu
associated with the window.
Specifies the name of the action with which this widget should be associated. If @action_name is %NULL then the widget will be unassociated from any previous action.
Usually this function is used when the widget is located (or will be located) within the hierarchy of a #GtkApplicationWindow.
Names are of the form “win.save” or “app.quit” for actions on the containing #GtkApplicationWindow or its associated #GtkApplication, respectively. This is the same form used for actions in the #GMenu associated with the window.