Giving up for now

Ben Klein shacklein at
Sat May 2 19:44:11 CDT 2009

2009/5/3 Joel Holdsworth <joel at>:
> On Sat, 2009-05-02 at 22:56 +0200, Roderick Colenbrander wrote:
>> Why again did you need this specific alphablend method? The icon can't
>> be converted to use some basic color keying for transparency or so?
> The reason is that the outlines will look aliased, and there will be no
> drop-shadows - without alpha the Tango icons won't look better than the
> current set. Also, I figured that icon rendering should be fixed for the
> sake of wine as a whole - which I think it should. It seems like a good
> little task for a wine beginner, and indeed I've made a lot of progress
> - I'm just a bit stuck.
> The culprit is a transfer through StretchDIBits in user32 which strips
> the alpha channel. I can't see a way round it - using StretchBlt doesn't
> help, and neither does GdiTransparentBlt.
> Another insentive: I suspect fixing this would also fix bug #201 which
> is now over 8 years old!

What format are your Tango icons in? Are you converting them to .ICO
files as you go, or leaving them in PNG/some other known alpha channel
supporting format?

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