"Void function definition" error when I press key bound to it

Question

I added this function to my ~/.emacs file and run it by entering M-x my-turn-current-window-into-frame RET.

I added the following to my ~/.emacs file after that function:

(global-set-key (kbd "<f12>") 'my-turn-current-window-into-frame)

I copied that line to *scratch* and evaluated it.

When I press F12, Emacs returns:

Symbol's function definition is void: my-turn-current-window-into-frame

How can I configure a hot-key to run this function?

Shouldn't it be (global-set-key (kbd "") #'my-turn-current-window-into-frame)? — Manuel Uberti, Feb 04 '16 at 12:31
I assume `M-x my-turn-current-window-into-frame` still works fine, right? Have you tried starting from `emacs -Q`, so it's not something weird in your init file? — zck, Feb 05 '16 at 22:11
I'm voting to close this question because the problem turned out to be due to a typo. — Gilles 'SO- stop being evil', Feb 25 '16 at 11:59

score 3 · Accepted Answer · edited Feb 05 '16 at 20:56

3

This is what I did:

I put this code in my init.el:

(defun my-turn-current-window-into-frame ()
  (interactive)
  (let ((buffer (current-buffer)))
    (unless (one-window-p)
      (delete-window))
    (display-buffer-pop-up-frame buffer nil)))

(global-set-key (kbd "<f12>") #'my-turn-current-window-into-frame)

I restarted Emacs.
I issued F12.

The current window was turned into a frame.

edited Feb 05 '16 at 20:56

Kaushal Modi

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answered Feb 05 '16 at 14:19

Manuel Uberti

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This results in the same error as I experience without the `#` character, using Emacs 24.3.1. – SabreWolfy Feb 25 '16 at 11:31
1

Did you try the code with `emacs -Q`? – Manuel Uberti Feb 25 '16 at 11:45
Thanks, I have traced the problem to a typo. It now works with or without the `#`. – SabreWolfy Feb 25 '16 at 11:50

"Void function definition" error when I press key bound to it

1 Answers1