AS3 Pass FlashVars to loaded swf

Question

Hi

I have a A.swf which loads B.swf onto a movieclip and needs to pass it some FlashVars. When loading B.swf with html, I can pass FlashVars fine. When passing from A.swf, it gets a

Error #2044: Unhandled ioError:. text=Error #2032: Stream Error. URL: file:

The code in A.swf is

var request:URLRequest = new URLRequest ("B.swf");

var variables : URLVariables = new URLVariables();
variables.xml = "test.xml";

// This line causes the error 2044, else B.swf loads fine with FlashVars  
request.data = variables;

loader.load (request); 

In B.swf, it is checking the Flashvars like so. It works fine from html side

this.loaderInfo.parameters.xml

Answer 1

you can add the flash vars into the URI when you are loading it

URLRequest(String("B.swf" + "?myvar=45"));

the problem is that when you loaded the string in the uri, it is put inside an Object loaderInfo.parameters so if you want to pass those parameters, you need to create a string to pass these into.

here's a script from http://ragona.com/blog/pass-flashvars-loaded-swf/ that shows how to convert that into a string array again

//:: Store loader info
var lInfo:Object = this.root.loaderInfo.parameters;
//:: Flashvars
var fVars:String = "?whee=nada"; //:: Getting the syntax change (? --> &) out of the way with a dummy var

//:: Set path + data
for (var flashVar in lInfo)
{
    fVars += "&" + flashVar + "=" + lInfo[flashVar];
}

var myRequest:URLRequest = new URLRequest(String("/myPath.swf" + fVars));

Answer 2

How do I sandbox the permissions? I tried adding the folder via the settings, but that didn't work too.

http://www.macromedia.com/support/documentation/en/flashplayer/help/settings_manager04.html#117502

I made a simple as new project. This is the complete code.

var mc:MovieClip = new MovieClip ();

var loader:Loader = new Loader ();
loader.contentLoaderInfo.addEventListener (Event.COMPLETE, OnComplete);

var request:URLRequest = new URLRequest ("B.swf"); 

var variables : URLVariables = new URLVariables(); 
variables.xml = "test2.xml"; 

// This line causes the error 2044, if i comment out, it runs fine without FlashVars   
request.data = variables; 

loader.load (request);  


function OnComplete (e:Event)
{
    trace ("On Complete");
    mc = e.currentTarget.content as MovieClip;
    addChild (mc);
}