GetDefinitionByName not finding class in externally loaded SWF

Question

In my app, I have an external SWF that contains a bunch of
movie clips that I want to instantiate in my main swf.
I have checked the "Export for ActionScript" and the "Export
in first frame" box in the movie clip in Flash.
In my main SWF, I have action script code that loads the SWF
(using the normal Loader and URLRequest classes).
When the load completes, I do:
var loader:Loader = Loader(event.target.loader);
var movieClip:MovieClip = MovieClip(loader.content);
var theClass:Class;
try
theClass = Class(getDefinitionByName("TestClass"));
catch(e:Error)
trace("TestClass not found!");
return;
I have never gotten it to successfully find the class.
Is there anything else I might be doing wrong?
Thanks

Answer 1

Ah, I figured it out. I need to use the applicationDomain. So
instead of using getDefinitionByName, I would call:
event.target.applicationDomain.getDefinition("TestClass");
That seems to work....
Thanks