Re: Window flickering (Was: Question on mini windows)

[David Chisnall]

On 11 Jan 2008, at 17:40, Fred Kiefer wrote:

> Andreas Schik wrote:
> > On 2008-01-10 22:15:31 +0100 Sas(o Kiselkov <skiselkov@gmail.com>
> > wrote:
> >
> > It used to work on gnustep-gui-0.11 without any problem. Also, when I
> >
> >
> > > I can confirm that. gui-0.12 worked for me as well.
> >
> > run an app in my X environment, it start spawning a window a large
> > number of times over and over again (basically, it appears as a small
> > window flickering) for about two seconds. After that the app starts
> > up normally. Any subsequent app launching (of either the same app or
> > different ones) doesn't cause the flickering anymore. Any
> > > This I have seen as well, but i occurs in -gui-0.12, too. I think
> > > it is somehow related to Étoilé as I watched this flicker appear
> > > the first time after installing Étoilé.
>
> No, it isn't Etoile. This is the test used by GNUstep to find out  
> about
> the window borders. The idea here is to check all combination of  
> border
> settings once and to store the resulting window borders for these. The
> values get cached on the root window, that is why you see it only for
> one GNUstep applications. This wont be needed in the future, when more
> and more window manager will adopt the new _NET_REQUEST_FRAME_EXTENTS
> protocol. The code for this is already in GNUstep, just try it once  
> with
> Gnome.

I patched my version of GNUstep to draw the flickering windows off the  
screen and suffered no ill effects.

David