GNU bug report logs - #66572
Windows menu entries double

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Johann Höchtl <johann.hoechtl <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: Windows menu entries double
Date: Mon, 16 Oct 2023 08:37:21 +0200

[Message part 1 (text/plain, inline)]

I am using Emacs 29.1 downloaded from
https://ftp.gnu.org/gnu/emacs/windows/emacs-29/emacs-29.1_2.zip on Windows
10.

Every now and then, without any discernible pattern, Emacs in GUI mode
doubles its main menu entries. With main menu I mean

File / Edit / Options / Tools / Text / Help

becomes
File / Edit / Options / Tools / Text / Help / File / Edit / Options / Tools
/ Text / Help

This is also true when another mode is active which adds top level menu
entries.

When clicking on such a doubled menu entry, the menu entries get
redisplayed and I am clicking into empty space - no error message.

Sure I wanted to take a snapshot but sending Emacs to the background and
bringing it to the front caused a re-display and now I can't take the
screenshot exhibiting the problem..

A cosmetical problem as no other harm is done.

I have witnessed that behaviour for years on Windows builts.

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Message #8 received at 66572 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Johann Höchtl <johann.hoechtl <at> gmail.com>
Cc: 66572 <at> debbugs.gnu.org
Subject: Re: bug#66572: Windows menu entries double
Date: Mon, 16 Oct 2023 14:54:27 +0300

> From: Johann Höchtl <johann.hoechtl <at> gmail.com>
> Date: Mon, 16 Oct 2023 08:37:21 +0200
> 
> I am using Emacs 29.1 downloaded from
> https://ftp.gnu.org/gnu/emacs/windows/emacs-29/emacs-29.1_2.zip on Windows 10.
> 
> Every now and then, without any discernible pattern, Emacs in GUI mode doubles its main menu
> entries. With main menu I mean
> 
> File / Edit / Options / Tools / Text / Help
> 
> becomes 
> File / Edit / Options / Tools / Text / Help / File / Edit / Options / Tools / Text / Help
> 
> This is also true when another mode is active which adds top level menu entries.

I only see this rarely when I drag the right edge of the frame with
the mouse, and drag it very fast.  As soon as I stop dragging, the
"ghost" menu items disappear.

Are you saying that they just appear for you, even if you do nothing
in Emacs?  What happens if you disable double-buffering?

Message #11 received at 66572 <at> debbugs.gnu.org (full text, mbox):

From: Johann Höchtl <johann.hoechtl <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 66572 <at> debbugs.gnu.org
Subject: Re: bug#66572: Windows menu entries double
Date: Mon, 16 Oct 2023 14:41:40 +0200

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>  Are you saying that they just appear for you, even if you do nothing
in Emacs?

Yes, I have it eg. in the background or minimized to the tray and when I
pop it to the front, I have "ghost" entries - sometimes.

> What happens if you disable double-buffering?

I evaluated (modify-frame-parameters nil '((inhibit-double-buffering . t)))
and double-buffering is visibly deactivated. I will investigate.

Am Mo., 16. Okt. 2023 um 13:54 Uhr schrieb Eli Zaretskii <eliz <at> gnu.org>:

> > From: Johann Höchtl <johann.hoechtl <at> gmail.com>
> > Date: Mon, 16 Oct 2023 08:37:21 +0200
> >
> > I am using Emacs 29.1 downloaded from
> > https://ftp.gnu.org/gnu/emacs/windows/emacs-29/emacs-29.1_2.zip on
> Windows 10.
> >
> > Every now and then, without any discernible pattern, Emacs in GUI mode
> doubles its main menu
> > entries. With main menu I mean
> >
> > File / Edit / Options / Tools / Text / Help
> >
> > becomes
> > File / Edit / Options / Tools / Text / Help / File / Edit / Options /
> Tools / Text / Help
> >
> > This is also true when another mode is active which adds top level menu
> entries.
>
> I only see this rarely when I drag the right edge of the frame with
> the mouse, and drag it very fast.  As soon as I stop dragging, the
> "ghost" menu items disappear.
>
> Are you saying that they just appear for you, even if you do nothing
> in Emacs?  What happens if you disable double-buffering?
>

[Message part 2 (text/html, inline)]

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