static void ActionStateChanged_cb(IntPtr inst, IntPtr action_name, IntPtr state)
{
try {
GLib.SimpleActionGroup __obj = GLib.Object.GetObject(inst, false) as GLib.SimpleActionGroup;
__obj.OnActionStateChanged(GLib.Marshaller.Utf8PtrToString(action_name), new GLib.Variant(state));
} catch (Exception e) {
GLib.ExceptionManager.RaiseUnhandledException(e, false);
}
}