[pmwiki-users] Request: Transparent PNGs in PmWiki

[Allister Jenks]

Hans,

Looks like we posted at the same time.

On 3/17/06, Hans <design at softflow.co.uk> wrote:
>
> http://pmwiki.org/wiki/Test/Opacity is not using the method described
> on http://www.willhowat.com/knowledge/transparent_png.aspx, but both IE's
> and Mozilla's built in opacity style attributes.
> I would think this is actually better, as it avoids a lot of
> restriction imposed by IE otherwise, like having to use floating
> images.
>
> See also http://www.pmwiki.org/wiki/Cookbook/BackgroundImages
> for further inspiration.
>

My goal is not so much opacity, but the display of a PNG image with a full
8-bit alpha channel (i.e. variable opacity/transparency).  As far as I can
tell IE for Windows (prior to v7) does not display 8-bit alpha, only 1-bit
simple mask ala gif files.  However, the technique I described in my
previous post does allow IE (5.5 and greater) to display such images
correctly.  Why MS never put that capability directly into the <img> tag I
don't know.

Thanks for the tip though.

--
Allister
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