Hi,
One alternative is to write your own GIF class like I did. :) That's a
great solution if you like bit-twiddling :)
Some things that may or may not be useful:
-The GIF file format specifies the background index (palette entry) in the
header.
-The Color of the transparent pixels should be 0,r,g,b. The zero says the
Alpha value is zero: the pixel has no opaqueness.
> My question concerns producing transparent gifs thar are transparent on all
> platforms (linux, win95 and Macintosh).
With Java, or an image-editing program?
Paint Shop Pro 5 (and 4 too, I think) allow you to specify which palette
entry is transparent. I've found that PSP 5's transparency doesn't always
work properly, at least for GIF89a format.
Feel free to e-mail me off this list, I might be able to help.
Seeya,
dstn.
