From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.help Subject: Re: Refresh display after changing variable Date: Mon, 02 Aug 2021 20:03:56 +0300 Message-ID: <83k0l3n5hf.fsf@gnu.org> References: Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="30719"; mail-complaints-to="usenet@ciao.gmane.io" To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Mon Aug 02 19:04:37 2021 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mAbMj-0007sa-4O for geh-help-gnu-emacs@m.gmane-mx.org; Mon, 02 Aug 2021 19:04:37 +0200 Original-Received: from localhost ([::1]:41428 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mAbMh-0002Uw-PT for geh-help-gnu-emacs@m.gmane-mx.org; Mon, 02 Aug 2021 13:04:35 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:60102) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mAbMF-0002UM-Fo for help-gnu-emacs@gnu.org; Mon, 02 Aug 2021 13:04:07 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:50812) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mAbMF-0006bJ-8H for help-gnu-emacs@gnu.org; Mon, 02 Aug 2021 13:04:07 -0400 Original-Received: from 84.94.185.95.cable.012.net.il ([84.94.185.95]:3218 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mAbME-0004uK-S9 for help-gnu-emacs@gnu.org; Mon, 02 Aug 2021 13:04:07 -0400 In-Reply-To: (message from Ken Goldman on Mon, 2 Aug 2021 12:49:41 -0400) X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:132317 Archived-At: > From: Ken Goldman > 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))