GNU bug report logs - #24642
26.0.50; Missing mode-line on initial frame

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#24642: closed (26.0.50; Missing mode-line on initial frame)
Date: Sun, 20 Nov 2016 17:30:02 +0000

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Your message dated Sun, 20 Nov 2016 19:29:57 +0200
with message-id <83a8cu9i0a.fsf <at> gnu.org>
and subject line Re: bug#24642: 26.0.50; Missing mode-line on initial frame
has caused the debbugs.gnu.org bug report #24642,
regarding 26.0.50; Missing mode-line on initial frame
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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From: martin rudalics <rudalics <at> gmx.at>
To: Bug-Gnu-Emacs <bug-gnu-emacs <at> gnu.org>
Subject: 26.0.50; Missing mode-line on initial frame
Date: Sat, 08 Oct 2016 18:17:29 +0200

With the following file missing-mode-line.el


(defvar old (selected-frame))
(defvar new (make-frame '((minibuffer . nil))))

(set-frame-width new 1640 nil t)
(set-frame-width old 400 nil t)
(set-frame-position new 0 0)
(set-frame-position old -1 -40)


and

emacs -Q -load "~/missing-mode-line.el"

I get on Windows XP two frames where the root window of the smaller one
has a missing mode-line.  The mode-line reappears when that frame gets
focus.  It's a minor issue but cannot be reproduced here with Emacs 25.

It's easily possible that I introduced the bug myself but I don't recall
changing anything in this area.  So if this rings a bell ...


In GNU Emacs 26.0.50.1 (i686-pc-mingw32)
 of 2016-10-08 built on MACHNO
Repository revision: 9adfb021df482c6aa94a043f07acf1e8eb695bf2
Windowing system distributor 'Microsoft Corp.', version 5.1.2600

Configured using:
 'configure --prefix=/c/emacs-git/quick --with-gnutls=no --with-wide-int
 --enable-checking=yes --enable-check-lisp-object-type=yes 'CFLAGS=-O0
 -g3''

Configured features:
SOUND NOTIFY ACL TOOLKIT_SCROLL_BARS

martin

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From: Eli Zaretskii <eliz <at> gnu.org>
To: martin rudalics <rudalics <at> gmx.at>
Cc: 24642-done <at> debbugs.gnu.org
Subject: Re: bug#24642: 26.0.50; Missing mode-line on initial frame
Date: Sun, 20 Nov 2016 19:29:57 +0200

> Date: Sun, 20 Nov 2016 18:10:18 +0100
> From: martin rudalics <rudalics <at> gmx.at>
> CC: 24642 <at> debbugs.gnu.org
> 
>  > No bells rang here, but the patch below solves this for me.  Does it
>  > make sense?  (Don't ask me how it works on emacs-25, it looks like
>  > some lucky coincidence with timing of the WM_PAINT message and the way
>  > we set windows_or_buffers_changed.)
> 
> It solves the problem so please apply it.

Done.

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