static void PreActivate_cb(IntPtr inst, IntPtr action)
{
try {
UIManager __obj = GLib.Object.GetObject(inst, false) as UIManager;
__obj.OnPreActivate(GLib.Object.GetObject(action) as Gtk.Action);
} catch (Exception e) {
GLib.ExceptionManager.RaiseUnhandledException(e, false);
}
}