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From: Eli Zaretskii <eliz@gnu.org>
To: help-gnu-emacs@gnu.org
Subject: Re: Refresh display after changing variable
Date: Mon, 02 Aug 2021 20:03:56 +0300	[thread overview]
Message-ID: <83k0l3n5hf.fsf@gnu.org> (raw)
In-Reply-To: <se97n5$1343$1@ciao.gmane.io> (message from Ken Goldman on Mon, 2 Aug 2021 12:49:41 -0400)

> From: Ken Goldman <kgoldman@us.ibm.com>
> Date: Mon, 2 Aug 2021 12:49:41 -0400
> 
> I have this to toggle a variable:
> 
> (defun kg-toggle-whitespace-line-column ()
>    "Toggle whitespace line column between 80 and 101"
>    (interactive)
>    (setq whitespace-line-column (if (= whitespace-line-column 80) 101 80))
>    (font-lock-fontify-buffer))
> (global-set-key "\C-cw" 'kg-toggle-whitespace-line-column)
> 
> However, the buffer is not refreshed with the different colors.
> 
> I also tried (refresh-display) - no success
> 
> (revert-buffer) works but seems crude.
> 
> What's the correct function?

This:

  (defun kg-toggle-whitespace-line-column ()
     "Toggle whitespace line column between 80 and 101"
     (interactive)
     (setq whitespace-line-column (if (= whitespace-line-column 80) 101 80))
     (whitespace-mode 1))



  reply	other threads:[~2021-08-02 17:03 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-02 16:49 Refresh display after changing variable Ken Goldman
2021-08-02 17:03 ` Eli Zaretskii [this message]
2021-08-02 19:36   ` Ken Goldman
2021-08-02 19:40     ` Eli Zaretskii
2021-08-02 20:56       ` Michael Heerdegen
2021-08-02 21:26         ` 2QdxY4RzWzUUiLuE
2021-08-03 15:42           ` Ken Goldman
2021-08-03 15:52             ` Eli Zaretskii
2021-08-03 16:17               ` Ken Goldman
2021-08-03 17:00             ` 2QdxY4RzWzUUiLuE
2021-08-03 17:03               ` Eli Zaretskii
2021-08-04 20:17               ` Ken Goldman

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