colorButton.addListener (SWT.Selection, listener);
void installListeners () {	Listener listener = new Listener () {		public void handleEvent (Event event) {			FontDialog.this.handleEvent (event);		}	};	okButton.addListener (SWT.Selection, listener);	cancelButton.addListener (SWT.Selection, listener);	charSetCombo.addListener (SWT.Selection, listener);	charSetCombo.addListener (SWT.Modify, listener);	faceNameCombo.addListener (SWT.Modify, listener);	fontStyleCombo.addListener (SWT.Modify, listener);	extStyleCombo.addListener (SWT.Modify, listener);	fontSizeCombo.addListener (SWT.Modify, listener);}