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Determine the transparent colour from a gif image

Posted: Sat Jul 17, 2004 7:32 am
by anjanesh
Hi
imagecolortransparent() sets the transparent colour.
I want the reverse - how to determine the transparent colour from a given gif image ?
Thanks

Posted: Sat Jul 17, 2004 8:54 am
by feyd
I don't know about the gd functions for it, however I know the information is inside the header.