// CC_Window mod
$this->connect_simple_after('delete-event', array($this, 'on_state_save'));
// CC_Main mod
public function on_quit()
{
	$dialog = new CC_Message('Are you sure you want to quit?', 'Exit...',
		CC_Message::QUESTION, CC::$program);
	if ($dialog->run() == Gtk::RESPONSE_YES)
	{
		$this->on_state_save();
		$this->destroy();
		return false;
	}
	else
	{
		$dialog->destroy();
		return true;
	}
}