How do I import mx.core.* with CS4?

Is mx.core.* something in the flex sdk / framework?

I am trying to get the unserializer from http://www.sephiroth.it/test/unserializer/ to work with flash CS4, and I am getting the compiler error:

1004: Namespace was not found or is not a compile-time constant.

The lines called out in the package are:
use namespace mx_internal
and
mx_internal static var c:uint;

I don't know the first thing about namespaces, but does anyone know how to get this package/class working in CS4 AS3? It might be something simple I am missing.

I have attached the .as package file (uploaded as a txt file) if anyone wants a look...

Any help would be appreciated. I am having to get a lot of lists from a mySQL database and it is becoming a real pain urlencoding them all manually. If I could just urlencode(serialize($result)); in php and send that file to AS3 to be decode it would be so much simpler.

Get the flex sdk http://www.adobe.com/products/flex/

I think the mx stuff is in either flex.swc or framework.swc. But you might be better off trying to compile with the flex compiler.

I can't really go back and compile with the flex compiler, I have a lot of layout and UI elements created in the flash API. I much prefer doing UI's visually than in flex.

Is there no easy way to change that .as file to compile properly with Flash? It seems like a horrible idea to make things as simple as classes not transportable between flex and flash.

You can try using one of the swcs as a library. I don't know if that would work.

Flex is a whole framework, so even if it does work, you might drag in a lot of extra code.

I figured it out for this case.

They weren't actually using any flex code at all. All they were using was a namespace that was not even required. I just removed the include and deleted all references to the mx_internal namespace and now the class works great!

Very cool! Now I can send full objects from php to flash with extremely little effort. Whole database results just urlencoded and serialized to be sent back as text and then be re-created in flash with one line of code as a native flash object. Wonderful!