GNU bug report logs - #950
CVS Emacs on Windows XP fails to draw contents of new frame

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Message #5 received at submit <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Francis Litterio <flitterio <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: CVS Emacs on Windows XP fails to draw contents of new frame
Date: Tue, 09 Sep 2008 12:51:22 -0400

CVS Emacs on Windows XP sometimes fails to draw the contents of a new
frame.  To reproduce, run "emacs -q", and evaluate this form:

    (let ((frame (make-frame)))
      (make-frame-invisible frame)
      (make-frame-visible frame))

The new frame's contents will not be drawn.  Typing "C-l" in the new
frame does not cause its contents to be drawn.  You have to switch focus
to another window and back again before the frame's contents are drawn.
--
Fran

Message #12 received at 950 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: martin rudalics <rudalics <at> gmx.at>
To: Francis Litterio <flitterio <at> gmail.com>, 950 <at> debbugs.gnu.org
Subject: Re: bug#950: CVS Emacs on Windows XP fails to draw contents of new
 frame
Date: Thu, 11 Sep 2008 10:54:05 +0200

> CVS Emacs on Windows XP sometimes fails to draw the contents of a new
> frame.  To reproduce, run "emacs -q", and evaluate this form:
>
>     (let ((frame (make-frame)))
>       (make-frame-invisible frame)
>       (make-frame-visible frame))
>
> The new frame's contents will not be drawn.

Works here (on Windows XP).

> Typing "C-l" in the new
> frame does not cause its contents to be drawn.  You have to switch focus
> to another window and back again before the frame's contents are drawn.

But the new frame is visible and in the foreground, I suppose.  What are
your focus-follows-mouse settings?

martin

Message #17 received at 950 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: "Juanma Barranquero" <lekktu <at> gmail.com>
To: "martin rudalics" <rudalics <at> gmx.at>,
        "Francis Litterio" <flitterio <at> gmail.com>,
        950 <at> debbugs.gnu.org
Subject: Re: bug#950: CVS Emacs on Windows XP fails to draw contents of new frame
Date: Thu, 11 Sep 2008 14:15:55 +0200

>> The new frame's contents will not be drawn.
>
> Works here (on Windows XP).

I see the bug (Windows XP Home SP3).

It doesn't happen every time, though. I just did a few tests; in one,
the non-displaying behavior happened once, of twenty frames created.
In the very next run, it happened about one in three times.

   Juanma

Message #22 received at 950 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Francis Litterio <flitterio <at> gmail.com>
To: 950 <at> debbugs.gnu.org
Subject: Re: bug#950: CVS Emacs on Windows XP fails to draw contents of new frame
Date: Thu, 11 Sep 2008 10:34:03 -0400

martin rudalics wrote:

>> CVS Emacs on Windows XP sometimes fails to draw the contents of a new
>> frame.  To reproduce, run "emacs -q", and evaluate this form:
>>
>>     (let ((frame (make-frame)))
>>       (make-frame-invisible frame)
>>       (make-frame-visible frame))
>>
>> The new frame's contents will not be drawn.
>
> Works here (on Windows XP).
>
>> Typing "C-l" in the new
>> frame does not cause its contents to be drawn.  You have to switch focus
>> to another window and back again before the frame's contents are drawn.
>
> But the new frame is visible and in the foreground, I suppose.

Yes, it appears on top of the existing Emacs frame, but about 20 or 30
pixels to the right.

> What are
> your focus-follows-mouse settings?

focus-follows-mouse is nil.
--
Fran

Message #29 received at 950-done <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Jason Rumney <jasonr <at> gnu.org>
To: 950-done <at> debbugs.gnu.org
Subject: Re: bug#950: CVS Emacs on Windows XP fails to draw contents of new
 frame
Date: Sun, 15 Mar 2009 22:51:54 +0800

> CVS Emacs on Windows XP sometimes fails to draw the contents of a new
> frame.

This bug (also reported as bug#1748 and bug#2524) should be fixed now. 
It was due to a poorly implemented redraw optimization within Windows, 
which I have worked around by using a non-standard paint message 
internally in Emacs.

Message #40 received at 950-done <at> emacsbugs.donarmstrong.com (full text, mbox):

From: "Drew Adams" <drew.adams <at> oracle.com>
To: "'Jason Rumney'" <jasonr <at> gnu.org>, <950-done <at> debbugs.gnu.org>
Subject: RE: bug#950: CVS Emacs on Windows XP fails to draw contents of new frame
Date: Sun, 15 Mar 2009 10:42:35 -0700

> From: Jason Rumney Sent: Sunday, March 15, 2009 7:52 AM
> > CVS Emacs on Windows XP sometimes fails to draw the 
> > contents of a new frame.
> 
> This bug (also reported as bug#1748 and bug#2524) should be 
> fixed now. It was due to a poorly implemented redraw optimization
> within Windows, which I have worked around by using a
> non-standard paint message internally in Emacs.

This will be great - thanks. Looking forward to it.

 - Drew

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