Save Transparent PNG

[arikd]

Hi,

I'm using SWFKit Pro 3.4 and I'm trying to load a PNG file (with transparent background), do some changes on it and save it back to PNG (keeping the original transparent background). Right now it saves the PNG, but with a black background, not transparent. How do I do this?

Thanks in advance,
Ariel

[SWFKit]

var bkcolor = 0xFFFFFF;

image.save("c:\\test.png", null, bkcolor);

[arikd]

Wouldn't that save the PNG with a white background instead of transparent?