Bug 24586 [Dialogs] Changed initial focus behaviour
bundles/org.eclipse.jface/src/org/eclipse/jface/dialogs/MessageDialog.java
*/
	private String[] buttonLabels;
	/**
	 * The buttons. Parallels <code>buttonLabels</code>.
	 */
	private Button[] buttons;
	/**
	 * Index into <code>buttonLabels</code> of the default button.
	 */
	private int defaultButtonIndex;
	/**
	 * Dialog title (a localized string).
	 */
	private String title;
	/**
	 * Dialog title image.
	 */
	private Image titleImage;
	/**
	 * Image, or <code>null</code> if none.
	 */
	private Image image = null;
	
	/**
	 * The custom dialog area.
	 */
	private Control customArea;
/**
 * Create a message dialog.
 * Note that the dialog will have no visual representation (no widgets)