  *  is measured, laid out, and drawn, after which the
  *  <code>creationComplete</code> event is dispatched.</p>
  *
+ *  <p>This event will only be dispatched when there are one or more 
+ *  relevant listeners attached to the dispatching object.</p>
+ * 
  *  @eventType mx.events.FlexEvent.INITIALIZE
  *  
  *  @langversion 3.0

        invalidateProperties();
        if (was3D != is3D)
            validateMatrix();
        dispatchEvent(new Event("zChanged"));
    }

    /**

 *  using the <code>rawChildren.addChild()</code> or
 *  <code>rawChildren.addChildAt()</code> method, the event is not dispatched.
 *
 * <p>This event will only be dispatched when there are one or more relevant listeners 
 * attached to the dispatching object.</p>
 * 
 *  @eventType mx.events.FlexEvent.ADD
 *  
 *  @langversion 3.0
