Actionscript Library Availability?

[Star Weaver]

Hiya. I'm totally new to flash, and I'm trying to see what I can do with raw ActionScript at the moment. I've got some code that manages to draw a tiled background, but when I try to run it in GFx I get an error:

Error: <unknown>::CreateNewObject returned NULL during creation of <unknown> class instance.

Which seems to be because of BitmapData not actually existing in this line:

var bmd:BitmapData = new BitmapData(512, 256, true);

Is that just something you can't use with GFx, or is there a different thing you have to do to get it to import properly, or what? Is there a list of this stuff?

[Doublezer0]

as far as I know only 4 functions of the BitmapData class work in gfx3.0

these are : Height, Width, Rectangle and LoadBitmap.

I may be wrong tho my info is a couple of years old.