Bug 25419 [Dialogs] Can't Maximize Window: "Preferences"
Build: 200210181211 The "Preferences" window cannot be maximized since it neither has a maximize title bar button nor does the title bar respond to being double-clicked. The only work around is to reside the window manually by dragging the border. For short-lived windows this is too detail-oriented and time-consuming.
bundles/org.eclipse.jface/src/org/eclipse/jface/preference/PreferenceDialog.java
* </p>
 */
protected void handleShellCloseEvent() {
	
	cancelPressed();
}
/**
 * Notifies of the pressing of the Help button.
 * <p>
 * The default implementation of this framework method
 * calls <code>performHelp</code> on the currently active page.
 * </p>
 */
protected void helpPressed() {
	if (currentPage != null) {
		currentPage.performHelp();
	}
}
/**
 * Returns whether the current page is valid.
 *
 * @return <code>false</code> if the current page is not valid, or
 *  or <code>true</code> if the current page is valid or there is
 *  no current page
*/
protected boolean isCurrentPageValid() {
	if (currentPage == null)
		return true;
	else
		return currentPage.isValid();