Re: [gerd.moellmann@t-online.de: Re: [bab@vx.com: Scrolling down fails to refresh.]]

[Tak Ota <Takaaki.Ota@am.sony.com>]

I've tried it on GNU Emacs 21.2.1 (i386-msvc-nt5.0.2195) of 2002-03-21
on TAK_4100 which is almost identical to the reported build, and could
not reproduce the described phenomenon by using "Task Manager"
(configure to stay on top).  It might be something to do with old
version of msvcrt.dll or some sort of system issues rather than Emacs
issues.

-Tak

Wed, 04 Sep 2002 22:47:13 -0400: Richard Stallman <rms@gnu.org> wrote:

> Is this really Windows-specific?  If so, would someone who works on
> Windows please look at it?
> 
> ------- Start of forwarded message -------
> X-Authentication-Warning: gerd.free-bsd.org: gerd set sender to gerd.moellmann@t-online.de using -f
> Sender: gerd@gerd.free-bsd.org
> To: rms@gnu.org
> Subject: Re: [bab@vx.com: Scrolling down fails to refresh.]
> From: gerd.moellmann@t-online.de (Gerd Moellmann)
> Date: 04 Aug 2002 15:25:32 +0200
> In-Reply-To: <200206151412.g5FECx510208@aztec.santafe.edu>
> X-Sender: 520015515780-0001@t-dialin.net
> 
> Richard Stallman <rms@gnu.org> writes:
> 
> > Would you please look at this?
> > He included a 3 meg screen capture, so I have deleted that;
> > please tell me if you want it.
> > 
> > ------- Start of forwarded message -------
> > From: "Bernard A Badger" <bab@vx.com>
> > To: <bug-gnu-emacs@gnu.org>
> > Subject: Scrolling down fails to refresh.
> > X-Priority: 3 (Normal)
> > X-MSMail-Priority: Normal
> > Importance: Normal
> > X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4807.1700
> > X-MS-TNEF-Correlator: <INEKLKBFCDBPKMKAJLMDOEKICCAA.bab@vx.com>
> > Sender: bug-gnu-emacs-admin@gnu.org
> > Date: Mon, 13 May 2002 16:47:27 -0400
> > 
> > This is a multi-part message in MIME format.
> > 
> > - ------=_NextPart_000_002D_01C1FA9D.DE765130
> > Content-Type: text/plain;
> > 	charset="iso-8859-1"
> > Content-Transfer-Encoding: 7bit
> > 
> > The following is a screen capture (Alt-Print Scrn) of Emacs as it scrolls badly
> > and does not
> > refresh properly.  
> > GNU Emacs 21.2.1 (i386-msvc-nt5.0.2195) of 2002-03-19 on buffy
> > If you cannot see the embedded picture, here's a description of the problem.
> > 
> > When I scroll down the window (Pull scrollbar down, that is) and there is a
> > "Stay on Top"
> > window overlapping the bottom of the emacs window
> > (such as Rational Purify's "Purify Instrumentation" progress window, 
> > or the Windows "Task Manager" window),  
> > the graphics of the obscuring window are copied up as we scroll.  
> > Sometimes they are erased in the end, sometimes not.
> > (I say "scroll down" when the window goes down the file, the corresponding
> > text appears to go up the screen.)
> > 
> > This can occur multiple times, until there is a "chatter" of wrongly-scrolled
> > window parts.
> > 
> > I suspect this has something to do with the incorrect scrolling that occurs
> > anyway.  
> > This is when the size of the scroll bar is re-computed based on the number of
> > characters 
> > on-screen.  It should really be based on the number of lines.  I think that in
> > the end it is, and
> > it's the temporary "approximate" scrolling that is to blame.
> 
> That looks a lot like another report for Emacs on MS-Windows, for
> which Jason said it was Windows-specific.
> ------- End of forwarded message -------
> 
> 
> 
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