GNU bug report logs - #25408
Remove Decorations Around Emacs Frame (Windows OS)

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From: Arthur Miller <arthur.miller.no1 <at> gmail.com>
To: martin rudalics <rudalics <at> gmx.at>
Cc: 25408 <at> debbugs.gnu.org, Eli Zaretskii <eliz <at> gnu.org>, Clément Pit--Claudel <clement.pit <at> gmail.com>
Subject: bug#25408: Remove Decorations Around Emacs Frame (Windows OS)
Date: Wed, 11 Jan 2017 11:20:28 +0100

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I have a small question: how do I make this take effect in my init file
when I run in server/client mode?

Seems like my client always insist on creating frames around emacs window,
while when I run
emacs "standalone" (for ex emacs --debug-init) it starts undecorated. I
have tried following in my
.emacs:

(add-to-list 'default-frame-alist '(undecorated . 0))
(setq default-frame-alist '((undecorated . 0)))
(setq initial-frame-alist '((undecorated . 0)))

But that does not give any effect at all.

I have following to switch off/on decorations interactively:

(defvar decor 0)
(defun toggle-frame-decor ()
  (interactive)
  (progn
   (modify-frame-parameters (selected-frame) `((undecorated . ,'decor)))
   (if (= decor 0)
       (setq decor 1)
     (setq decor 0))))
(global-set-key [f9] 'toggle-frame-decor)

If I place call to
(toggle-frame-decor)

in .emacs than it works for non-server mode, but not when I run emacsclient
(which I do normally always). I tried to force loading .emacs when severs
starts
with -l ~/.emacs switch, but it didn't worked either.

I admit I am just very uneducated about emacs & elisp and would really
appreciate if a nice
soul could help with my poor education.

2017-01-11 10:17 GMT+01:00 Arthur Miller <arthur.miller.no1 <at> gmail.com>:

> I took screenshot of just one version, it was problem with both on/off, at
> least on my machine.
>
> Just posting wm_size message after the change in your function solves
> issues in both cases for me.
>
> 2017-01-11 9:39 GMT+01:00 martin rudalics <rudalics <at> gmx.at>:
>
>> > There is a slightly cosmetic issue with above function. When one
>> switches
>> > back on decorations,
>> > the frame will not resize properly and minibuffer will be not visible.
>> It's
>> > there but just
>> > covered by frame. Just resizing emacs framefixes it.
>> >
>> > Adding call to PostMessage(hwnd, WM_SIZE,0,0) in Martins function fixes
>> it.
>>
>> This is not necessary here.  And it would be strange since the idea is
>> that the outer frame size remains unchanged.  Hence, any problem would
>> manifest itself already when you remove the borders by leaving parts of
>> the display area reserved for the frame not redrawn.
>>
>> The image you posted in the message you sent just now seems to confirm
>> that.
>>
>> But I'm testing this on Windows XP and have not yet pulled the recent
>> multi-thread Emacs changes.
>>
>> martin
>>
>
>

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