Accessing swf vars from Flex

Ever need your memory jogged on the topic of putting swf vars into your Flex app? Here's just the thing for that:

Flash cs3 as3 file "click.swf"

ActionScript Code:

click_mc.addEventListener(MouseEvent.CLICK, reportClick);
var output:String = new String();

function reportClick(evt:MouseEvent):void
  {
      for(var i:int = 0; i<5; i++) {
          output += "I have been clicked. i = " + i + "\n";
      }
  }

MXML Flex 2.0

ActionScript Code:

<?xml version="1.0" encoding="utf-8"?>

<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">

<mx:Script>
  <![CDATA[
      private function updateTextField():void
      {
          output_txt.text += swf.content["output"];
      }
  ]]>
</mx:Script>

  <mx:SWFLoader x="10" y="10" source="click.swf" scaleContent="false" id="swf" click="updateTextField()"/>

  <mx:TextArea x="10" y="518" width="550" height="211" id="output_txt"/>

</mx:Application>

Made for Flex 2 but perfectly applicable to 3, 4 and perhaps beyond... Thanks to the forums at actionscript.org for this one.