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Re: redraw of screen: problem solved.

Thanks to Steve Hankin, the problem of Ferret doing a (slow) redraw
every time the window was exposed or moved is now solved:

> Steve Hankin wrote:
> The redrawing that you are seeing presumably indicates that the X
> server you are working on has Backing Store turned OFF.  This
> means that exposure events are sent back to the client (Ferret).

This was indeed the case. A quick search on google told me that the
default setting of XFree86 4.0.1 (and up) is apparently to have backing
store turned off. I turned it on by passing the option '+bs' to the
Xserver in /etc/X11/xdm/Xservers:

:0 local /usr/X11R6/bin/X +bs

and that solved the problem. Ferret only does a redraw now when the
window is resized, in all other cases the window redisplays

Thanks, Steve!
	Hein Zelle

    Hein Zelle
    Dept. of Oceographic Research
    KNMI, The Netherlands
    work:        zelle@knmi.nl     http://www.knmi.nl/~zelle
    private:     hein@icce.rug.nl  http://www.icce.rug.nl/~hein
    Phone:       +31 (0)30 2206704
Zie ook/see also: http://www.knmi.nl/maildisclaimer.html 

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