Declare myFunc() function to be callable by the wrapper
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<!-- wrapper/AddCallbackExample.mxml -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:mx="library://ns.adobe.com/flex/mx"
xmlns:s="library://ns.adobe.com/flex/spark" creationComplete="initApp()">
<fx:Script>
import flash.external.*;
public function initApp():void {
ExternalInterface.addCallback("myFlexFunction",myFunc);
}
public function myFunc(s:String):void {
l1.text = s;
}
</fx:Script>
<s:Label id="l1" />
</s:Application>
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