On Tue, 17 Apr 2001, Tobias Hintze wrote:
> On Tue, Apr 17, 2001 at 04:50:04PM +0100, J. Ali Harlow wrote:
> >
> > Pixmaps don't support transparency. You have to use pixbufs.
>
> so i have to use GTK+2.0 API? seems so.
To use Pixbuf, yes.
> well, perhaps i don't need transparency but have to use my masks the
> right way. (i just need one-bit-depth-transparency)
>
> is it possible somehow to draw pixmap2 over pixmap1 using a mask
> (from pixmap2)?
I've never done this myself, but why don't you try gdk_gc_set_clip_mask.
> > When I get time I'll put together a test program and
> > log a bug against it. And least that way I'll get a response, even if it's just
> > to tell me that I've misunderstood how it's supposed to work.)
>
> so give me a line then...o
If you want a solution using images (which works in GTK+ 1.2.x) and is
nice and fast please have a look at the algorithms I use for Slash'EM at:
http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/slashem/slashem/win/gtk2/
gtktile.c (high level) and xshmmap.c (low level) are the files of interest.
Warning: The GTK+ team don't like this method. You must make up your own mind.
HTH
--
Ali Harlow Email: [EMAIL PROTECTED]
Research programmer Tel: (020) 7477 8000 X 4348
Applied Vision Research Centre Intl: +44 20 7477 8000 X 4348
City University Fax: (020) 7505 5515
London Intl: +44 20 7505 5515
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