Re: Transparent background in window?

[Joachim Backes <backes rhrk uni-kl de>]

On 04-Sep-2002 Brett Granger wrote: 
>  
>  Though I keep hoping somebody will be able to explain to me otherwise, 
>  there does not appear to be any way to make top level X windows 
>  transparent or translucent with the stock GTK (due to a limitation in X 
>  itself, I believe)...

Hi, this is not correct:

when working with pure X11, you can use the

        Nonrectangular Window Shape Extension

which will be provided by

        #include <X11/extensions/shape.h>

which is part of Xfree86: /usr/X11R6/include/X11/extensions

There is a good manual concerning this item:

        X11 NONRECTANGULAR WINDOW SHAPE EXTENSION

made by Keith Packard (X Consortium)

You will find the document for ex. in

        nscp.upenn.edu/aix4.3html/x11/specs/pdf/shape.PDF

Regards

Joachim Backes

--

Joachim Backes <backes rhrk uni-kl de>       | Univ. of Kaiserslautern
Computer Center, High Performance Computing  | Phone: +49-631-205-2438 
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>  
>  However, if all you want is the shape, and the contents don't need to be 
>  transparent then take a look at gtk_widget_shape_combine_mask -- 
>  http://developer.gnome.org/doc/API/2.0/gtk/gtkwidget.html#gtk-widget-shape-combine
>  -mask
>  
>  --Brett
>  
>  
>  Egon Andersen, Talura wrote:
> > Hi,
> > 
> > Is it possible to make the background in a window transparent?
> > The reason that I ask is that I have made a splash screen with an image 
> > that is not rectangular (transparent background) and I would like the 
> > window to appear as having the same shape as the image.
> > I've been looking at gtk_style family, but I haven't found the solution.
> > 
> > Any hints?
> > 
> > Best regards
> > Egon Andersen
> > 
> > _______________________________________________
> > gtk-list mailing list
> > gtk-list gnome org
> > http://mail.gnome.org/mailman/listinfo/gtk-list
>  
>  
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