Java tutorial
import org.eclipse.swt.SWT; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.Listener; import org.eclipse.swt.widgets.Shell; public class SystemSettingChangeListener { public static void main(String[] args) { final Display display = new Display(); Shell shell = new Shell(display); display.addListener(SWT.Settings, new Listener() { public void handleEvent(Event event) { System.out.println("Setting changed"); } }); while (!shell.isDisposed()) { if (!display.readAndDispatch()) display.sleep(); } display.dispose(); } }