RE: [ros-dev] Strange Stretch Problem

[Sebastiaan Roodenburg]

Hi All,

I think the problem is caused by a bug in NtUserPaintDesktop in
/trunk/reactos/subsys/win32k/ntuser/desktop.c

The NtGdiStrechBlt on line 1277 uses the clipping box (Rect) to determin the
destination with and hight of the background, but no actual clipping is
preformed. A quick fix (hack?) for the problem would be changing the
"Rect.right" to "sz.cx" and "Recht.bottom" to
"sz.cy". This would update the
entire desktop background on every request (just like the Tile and Centre
moduses do).

(I don't have a build environment set-up, so i can't test this suggested
fix, sorry)

Regards,

Sebastiaan

>   -----Original Message-----
>  From: ros-dev-bounces(a)reactos.org [mailto:[e-mail]]On
>  Behalf Of WaxDragon
>  Sent: Monday, January 16, 2006 2:39 PM
>  To: ReactOS Development List
>  Subject: Re: [ros-dev] Strange Stretch Problem
>
>
>  I have seen this exact problem.  I was getting around to filing a
>  bug on it. ;0)
>
>  On 1/16/06, James Tabor
>  <jimtabor(a)adsl-64-217-116-74.dsl.hstntx.swbell.net> wrote:
> >   Hi all,
> >  Can anyone see the problem with this picture? Every time I move 
>  the window,
> >   it looks like back behind the window, it gets
> > redrawn.
> >  Thanks,
> >  James
> >
> >
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> >
> >  
>
>  --
>  <Alex_Ionescu> it's like saying let's rename Ke to Kernel because
>  people think it's Ketchup
>
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