Re: Transparency, again...

[Tristan Van Berkom <vantr touchtunes com>]

I believe what you're looking at is:
        gdk_pixbuf_render_pixmap_and_mask();
with this you'll get transperency ... but not alpha channeling
(or at least I haven't found the time to try)

Good luck!
        -Tristan

Thomas Cameron wrote:
> Hello,
>
> Okay, I followed that link, and that is what I'm talking about.  But,
> like you said...weather or not you can apply it to a top-level window or
> not has yet to be seen.  Anyway, I had another idea.  I was rifling
> through the GDK API, and I was looking at the background stuff.  It was
> saying something about using a bitmap/pixmap combination to create
> transparency.  It mentioned that if a window had it's bg set to be
> transparent, then whatever was already in that area of the screen would
> remain displayed.  It also made mention of using xpm's, and other files
> as a background.  I'll look into this more, and hopefully even produce a
> sample application to see if this will give me the desired effect.
>
> If I am able to reach my goal, I will submit my findings to the list.
> For my particular application, I will most likely write a function to
> make setting transparency easier for end-programmers...which I may also
> release to the group.  Thanks again for your help!
>
> Thomas Cameron
>
> -----Original Message-----
> From: Shahms E. King [mailto:shahms shahms com]
> Sent: Wednesday, August 28, 2002 10:20 PM
> To: gtk-app-devel-list gnome org
> Subject: RE: Transparency, again...
>
> That's a patch by Owen Taylor that does exactly that to get
> transparency.  It's here:
> http://people.redhat.com/otaylor/gtk/
>
> I doubt if it will even apply to the current Gtk+, but you can have a
> look at it anyway.  You can get transparency of widgets and such
> depending on the theme/engine, but it doesn't apply to top-level
> windows, at least not that I've found.
>
> --Shahms
>
> On Wed, 2002-08-28 at 19:06, Thomas Cameron wrote:
> > Hello again,
> >
> > So then, how is it that when I see some screenshots of GTK apps, their
>
> > pop-up menus are partially transparent?  Does anybody know about that?
> >
> > Tom Cameron
> >
> > -----Original Message-----
> > From: Shahms E. King [mailto:shahms shahms com]
> > Sent: Wednesday, August 28, 2002 9:29 PM
> > To: gtk-app-devel-list gnome org
> > Subject: Re: Transparency, again...
> >
> >
> > At the moment, you don't, unless you want to muck around with gdkx_*
> > and
> > gdk_x11_* and XRender/XFT yourself.
> >
> > --Shahms
> >
> > On Wed, 2002-08-28 at 17:10, Thomas Cameron wrote:
> > > Hello all,
> > >
> > > I would like to post this question again.  How would I go about
> > > setting a window to be partially transparent?  In other words, I
> would
> > > like to have my main window partially viewable through a "popup"
> > > window.  Any real way to do this?  I know that GDK has some pixbuf
> > > stuff, which also allows for an alpha "channel".  How would I go
> about
> > > setting the background of the popup to be transparent?  Any help
> > > would
> >
> > > be greatly appreciated!
> > >
> > > Tom Cameron
> > _______________________________________________
> > gtk-app-devel-list mailing list
> > gtk-app-devel-list gnome org
> > http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
> > _______________________________________________
> > gtk-app-devel-list mailing list
> > gtk-app-devel-list gnome org
> > http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
> _______________________________________________
> gtk-app-devel-list mailing list
> gtk-app-devel-list gnome org
> http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
> _______________________________________________
> gtk-app-devel-list mailing list
> gtk-app-devel-list gnome org
> http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list