// Programm verlassen.
MenuItem insertParentItem = new MenuItem(submenu, SWT.PUSH);
insertParentItem.setText("E&xit (Speichern und Programm verlassen)\tCtrl + Q");
insertParentItem.setAccelerator(SWT.CONTROL + 'Q');
insertParentItem.addListener(SWT.Selection, new ExitProgram());
}