como Hacerlo?

[Yackpott]

Intenta con esto:

Código:

	public void windowDeactivated(WindowEvent asd){}
	public void windowDeiconified(WindowEvent asd){}
	public void windowIconified(WindowEvent asd){}
	public void windowActivated(WindowEvent asd){}
	public void windowOpened(WindowEvent asd){}
	public void windowClosed(WindowEvent asd){}
	public void windowClosing(WindowEvent asd){
		if(FramePadre==null){
			System.exit(0)
		}
	}