GNU bug report logs - #7084
24.0.50; alpha frame parameter causes flashing with standalone minibuffer

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: martin rudalics <rudalics <at> gmx.at>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#6370: closed (24.0.50; alpha frame parameter: flashing if
 standalone minibuffer)
Date: Fri, 22 Sep 2017 08:46:02 +0000

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Your message dated Fri, 22 Sep 2017 10:44:47 +0200
with message-id <59C4CD7F.40306 <at> gmx.at>
and subject line Re: bug#7084: 24.0.50; alpha frame parameter causes flashing with standalone minibuffer
has caused the debbugs.gnu.org bug report #7084,
regarding 24.0.50; alpha frame parameter: flashing if standalone minibuffer
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: "Drew Adams" <drew.adams <at> oracle.com>
To: <bug-gnu-emacs <at> gnu.org>
Subject: 24.0.50; alpha frame parameter: flashing if standalone minibuffer
Date: Mon, 7 Jun 2010 08:22:32 -0700

If you use a standalone minibuffer, and you set some other frame's alpha
parameter (e.g. (set-frame-parameter nil 'alpha (cons 100 80))), then
using the minibuffer makes the alpha frame flash (at least on Windows).
 

In GNU Emacs 24.0.50.1 (i386-mingw-nt5.1.2600)
 of 2010-05-23 on G41R2F1
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (3.4) --no-opt --cflags -Ic:/xpm/include'

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From: martin rudalics <rudalics <at> gmx.at>
To: Drew Adams <drew.adams <at> oracle.com>, 
 Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: 7084-done <at> debbugs.gnu.org
Subject: Re: bug#7084: 24.0.50; alpha frame parameter causes flashing with
 standalone minibuffer
Date: Fri, 22 Sep 2017 10:44:47 +0200

>> Is this problem still present in Emacs 24.3?
>
> Yes, and in a 24.4 build from 2014-02-07.  It makes frame
> parameter `alpha' unusable for a setup that has a standalone
> minibuffer frame (mine, at least).

When I start Emacs 24.5.50.1 with the -Q option and load a file with the
following contents

(setq default-frame-alist '((minibuffer . nil)))

(set-frame-parameter nil 'alpha (cons 100 80))

and I now type C-h f in the "alpha frame", I can indeed see "the alpha
frame flash (at least on Windows)".  Since I cannot reproduce this
flashing with a build of Emacs 25.3.50.1, I'm marking this bug as done.

Thanks for the report, martin

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