User Guide

928 Menu component (Flash Professional only)
When the event is triggered, it automatically passes an event object (eventObject) to the
handler. Each event object has properties that contain information about the event. You can
use these properties to write code that handles the event. The
Menu.rollOver event’s event
object has one additional property:
menuItem, which is a reference to the menu item (XML
node) that the pointer rolled over.
For more information, see “EventDispatcher class” on page 499.
Example
The following example creates a menu with two items and a listener for a rollOver event.
When the
rollOver event is broadcast, a trace() function in the event handler,
menuListener, displays the name of the menu item for which the event occurred.
You first drag a Menu component to the library and then add the following code to Frame 1:
/**
Requires:
- Menu component in library
*/
import mx.controls.Menu;
// Create an XML object to act as a factory.
var my_xml:XML = new XML();
// The item created next does not appear in the menu.
// The createMenu() method call (below) expects to
// receive a root element whose children will become
// the items. This is just a simple way to create that
// root element and give it a convenient name.
var menuDP_obj:Object = my_xml.addMenuItem("XXXXX");
// Add the menu items.
menuDP_obj.addMenuItem({label:"1st Item"});
menuDP_obj.addMenuItem({label:"2nd Item"});
// Create the Menu object.
var my_menu:Menu = Menu.createMenu(this, menuDP_obj);
// Show and position the menus
my_menu.show(100, 20);
// Create listener object.
var menuListener:Object = new Object();
menuListener.rollOver = function(evt_obj:Object) {
trace("Menu rollOver: "+evt_obj.menuItem.attributes.label);
};
// Add listener.
my_menu.addEventListener("rollOver", menuListener);