How do I make this Emacs frame keep its buffer and not get resized?

Question

My Emacs frame looks like this:

+---------------------------+
|             |             |
|             |             |
|             |      B      |
|      A      |             |
|             |             |
|             |             |
|             |-------------|
|             |      C      |
+---------------------------+

C is usually a terminal with some kind of long-running process, like a web server or daemon. Unfortunately, all sorts of things like to switch the buffer in that window and occasionally it gets resized. How can I lock the buffer and height of window C?

score 12 · Answer 1 · answered Mar 01 '11 at 12:18

12

One possibility is to dedicate the window to its buffer, using set-window-dedicated-p. This will not prevent the window from being resized manually, only protect it from being clobbered by display-buffer. For example,

(add-hook 'shell-mode-hook
      (lambda ()
        (interactive)
        (set-window-dedicated-p (selected-window) 1)))

Replace shell-mode-hook as necessary.

answered Mar 01 '11 at 12:18

huaiyuan

26,129
5
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using a 't' instead of '1' is even stronger. as in: (set-window-dedicated-p (selected-window) t) ...refer to: https://www.gnu.org/software/emacs/manual/html_node/elisp/Dedicated-Windows.html – pestophagous Jan 11 '17 at 00:27

score 12 · Accepted Answer · edited May 23 '17 at 10:29

If you don't want to be annoyed by window stealing and resizing, put the following lines in your .emacs for a definitive solution that works even with libraries like gud that tries to open a new frame when they can't steal your windows :

(see this answer for info on the following advice)

(defadvice pop-to-buffer (before cancel-other-window first)
  (ad-set-arg 1 nil))

(ad-activate 'pop-to-buffer)

;; Toggle window dedication
(defun toggle-window-dedicated ()
  "Toggle whether the current active window is dedicated or not"
  (interactive)
  (message
   (if (let (window (get-buffer-window (current-buffer)))
         (set-window-dedicated-p window 
                                 (not (window-dedicated-p window))))
       "Window '%s' is dedicated"
     "Window '%s' is normal")
   (current-buffer)))

;; Press [pause] key in each window you want to "freeze"
(global-set-key [pause] 'toggle-window-dedicated)

and customize pop-up-windows variable to nil.

you could also use StickyWindows instead of window-dedicated feature.

Note that the arguments to `pop-to-buffer` have changed in Emacs 24, and that advice causes some havoc. — phils, Nov 04 '11 at 02:09
For those still having trouble stopping emacs from splitting or resizing a buffer http://superuser.com/a/632050 might be helpful. — ksrb, Jun 03 '16 at 19:33

score 2 · Answer 3 · answered Mar 24 '14 at 12:29

This one also works fine (for emacs 24) https://lists.gnu.org/archive/html/help-gnu-emacs/2007-05/msg00975.html

(define-minor-mode sticky-buffer-mode
  "Make the current window always display this buffer."
  nil " sticky" nil
  (set-window-dedicated-p (selected-window) sticky-buffer-mode))

score 1 · Answer 4 · answered Mar 01 '11 at 08:13

1

You could use winner-mode to be able to undo the changes to be the window sizes.

You could also explicitly save and restore the window configuration in registers.

answered Mar 01 '11 at 08:13

Teddy

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How do I make this Emacs frame keep its buffer and not get resized?

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