Quick Demo stack for creating Transpanrecy effect.

[jbv]

I've done that before : setting transparent pixels, replacing
colors in an image, etc.
the problem with using the imagedata property is that it's
terribly slow... it works for small images (like in your example),
but for large images, better write an external...
JB

> Helping out a friend, I did this. It could be good for a number of
> things including:
>
> Creating cursors
> Creating transparent GIFs
> etc..
>
> in the messagebox:
>
> go URL "http://www.altuit.com/webs/altuit2/RunRev/altMakeTrans.rev"
>
> altMakeTransparent
> This is a small demo stack which has a neat function which can make a
> specific color transparent in an image.
>
> The demo makes all white pixels transparent. The function is in the
> script of the button, "Make White Transparent"
>
> -Chipp
>
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