GNU bug report logs - #11939
24.1; `save-buffers-kill-emacs' loses minibuffer focus when it calls `list-processes'

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Message #383 received at 11939 <at> debbugs.gnu.org (full text, mbox):

From: martin rudalics <rudalics <at> gmx.at>
To: Drew Adams <drew.adams <at> oracle.com>
Cc: 11939 <at> debbugs.gnu.org
Subject: Re: bug#11939: 24.1; `save-buffers-kill-emacs' loses
	minibufferfocuswhenitcalls`list-processes'
Date: Fri, 10 Aug 2012 11:33:42 +0200

>>  > Perhaps you can help by telling me what vanilla Emacs code
>>  > normally changes things so that the value [of (windows-parameters)]
>>  > returned is non-nil.
>>
>> `display-buffer-record-window'
>>
>>  > I note that in Emacs 23 also (windows-parameters) returns nil for me.
>>
>> `display-buffer-record-window' has been introduced in Emacs 24.1.
>
> How does that make sense?  If `display-buffer-record-window' is what makes
> `windows-parameters'

... with vanilla Emacs code ...

> return non-nil, and `windows-parameters' existed back in
> Emacs 23, and `display-buffer-record-window' did not exist in Emacs 23, then
> `windows-parameters' would have always returned nil in Emacs 23, no?

It would have always returned nil in a vanilla Emacs 23.

> Why would it exist back then if it always returned nil?

For a user or an application to store values in it.

> Does/did it have side
> effects or something?

Not to my knowledge.

> And its doc even in Emacs 23 says that it returns a list
> of elements of form (PARAMETER . VALUE).

nil is an empty list of elements of form (PARAMETER . VALUE)

martin

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