Passing variables from actionscript 3 to actionscript 2 - actionscript-3

Question

I have a swf written in AS3 which loads an AS2 swf.
AS3 code:
var url:String = "as2.swf?myvar=hello";
var spURL:Array = url.split("?");
var urlVars:URLVariables = new URLVariables();
urlVars.decode(spURL[1]);
var req:URLRequest = new URLRequest( spURL[0] );
req.data = urlVars;
req.method = URLRequestMethod.GET;
AS2 code:
trace(_root.myvar);
but nothing traced!

Answer 1

I found solution to my question.
Full source code bellow
AS3: with a movieclip named "as2btn" and a text field named "as3_log". The publish class name is "main_as3"
package {
import flash.display.*;
import flash.events.*;
import flash.net.*;
public class main_as3 extends MovieClip {
public var ld:Loader;
public function main_as3() {
// constructor code
this.as2btn.addEventListener(MouseEvent.MOUSE_DOWN, as2Load);
this.logMessage("Initialized!");
}
public function logMessage(msg:String)
{
this.as3_log.appendText("AS3: " + msg + "\n");
}
public function as2Load(evt:MouseEvent)
{
if (this.ld) {
this.ld.unloadAndStop();
this.ld = null;
}
var url:String = "as2.swf?myvar=1rewr&myvar2=1234";
var spURL:Array = url.split("?");
var urlVars:URLVariables = new URLVariables();
urlVars.decode(spURL[1]);
var req:URLRequest = new URLRequest(spURL[0]);
req.data = urlVars;
req.method = URLRequestMethod.GET;
this.ld = new Loader();
this.ld.load(req);
addChild(this.ld);
}
}
}
AS2: with a movieclip linkage identifier "main" and class name "main_as2" includes a text field named "as2_log"
class main_as2 extends MovieClip
{
var _parent;
function main_as2()
{
super();
this.gotoAndStop(1);
this.logMessage("Initialized!");
this.logMessage("_parent.myvar: " + _parent.myvar);
}
function logMessage(msg:String)
{
this["as2_log"].text = this["as2_log"].text + "AS2: " + msg + "\n";
}
}