Bug 64760 add SINGLE/MULTI radios to ControlExample - Dialog tab - File Dialog Styles
should probably add a horizontal separator below the SWT.OPEN radio, then the SINGLE and MULTI radios below
examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/controlexample/DialogTab.java
ignoreButton.setEnabled (
			!(okButton.getSelection () || cancelButton.getSelection () |
				yesButton.getSelection () || noButton.getSelection ()));
	}
	
	/**
	 * Handle the create button selection event.
	 *
	 * @param event org.eclipse.swt.events.SelectionEvent
	 */
	void createButtonSelected(SelectionEvent event) {
	
		
		int style = getDefaultStyle();
		if (okButton.getEnabled () && okButton.getSelection ()) style |= SWT.OK;
		if (cancelButton.getEnabled () && cancelButton.getSelection ()) style |= SWT.CANCEL;
		if (yesButton.getEnabled () && yesButton.getSelection ()) style |= SWT.YES;
		if (noButton.getEnabled () && noButton.getSelection ()) style |= SWT.NO;
		if (retryButton.getEnabled () && retryButton.getSelection ()) style |= SWT.RETRY;
		if (abortButton.getEnabled () && abortButton.getSelection ()) style |= SWT.ABORT;
		if (ignoreButton.getEnabled () && ignoreButton.getSelection ()) style |= SWT.IGNORE;
		if (iconErrorButton.getEnabled () && iconErrorButton.getSelection ()) style |= SWT.ICON_ERROR;
		if (iconInformationButton.getEnabled () && iconInformationButton.getSelection ()) style |= SWT.ICON_INFORMATION;
		if (iconQuestionButton.getEnabled () && iconQuestionButton.getSelection ()) style |= SWT.ICON_QUESTION;
		if (iconWarningButton.getEnabled () && iconWarningButton.getSelection ()) style |= SWT.ICON_WARNING;
		if (iconWorkingButton.getEnabled () && iconWorkingButton.getSelection ()) style |= SWT.ICON_WORKING;
		if (primaryModalButton.getEnabled () && primaryModalButton.getSelection ()) style |= SWT.PRIMARY_MODAL;
		if (applicationModalButton.getEnabled () && applicationModalButton.getSelection ()) style |= SWT.APPLICATION_MODAL;
		if (systemModalButton.getEnabled () && systemModalButton.getSelection ()) style |= SWT.SYSTEM_MODAL;
		if (saveButton.getEnabled () && saveButton.getSelection ()) style |= SWT.SAVE;