I’m creating a new portfolio site using Joomla and Flash. I’ve spent this past weekend creating AS3 class packages (and converting some of my AS2 classes to AS3).

I began loading thumbnails using AS3′s URLRequest and URLLoader in my main application file. I decided to create a package that would request/load the thumbnails, but I needed to return the data from the URLRequest to my main application. I was able to accomplish it using the dispatchEvent method.

Note: This functionality is the basis for my gpUrlLoader class (part of my gpAS3Library).

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I just received a Flash/AS3 error message:

1172: Definition could not be found

After many years of developing websites using Flash/AS2, I abandoned Flash web development for the new world of Ajax development (actually, Flash was the first Ajax/Web 2.0 framework).

I recently began to convert some of my AS2 class packages to AS3. I upgraded to Flash CS3 a couple of years ago, but because I have recently been doing a lot of Ajax development (primarily JQuery, YUI, and Dojo), I have only done minor Flash development, limited to Flash banners and other animation projects.

After a lot of frustration, I figured out why I was receiving errors when converting my flash AS2 classes to AS3 packages.

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I was trying to find the version of XULRunner on my Ubuntu box.

sudo apt-cache showpkg xulrunner | less

This command will give you version and other relevant information about a package installed on Ubuntu.