From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Barry Margolin Newsgroups: gmane.emacs.help Subject: Re: Functions that need X Date: Sat, 01 Jan 2011 16:32:48 -0500 Organization: A noiseless patient Spider Message-ID: References: <87sjxcv2ld.fsf@Compaq.site> NNTP-Posting-Host: lo.gmane.org X-Trace: dough.gmane.org 1293924874 1407 80.91.229.12 (1 Jan 2011 23:34:34 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Sat, 1 Jan 2011 23:34:34 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Sun Jan 02 00:34:27 2011 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1PZAxv-00074x-Dd for geh-help-gnu-emacs@m.gmane.org; Sun, 02 Jan 2011 00:34:27 +0100 Original-Received: from localhost ([127.0.0.1]:40007 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PZAxu-0004L3-Ph for geh-help-gnu-emacs@m.gmane.org; Sat, 01 Jan 2011 18:34:26 -0500 Original-Path: usenet.stanford.edu!newsfeed.esat.net!colt.net!feeder.news-service.com!85.214.198.2.MISMATCH!eternal-september.org!feeder.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 32 Injection-Info: barmar.motzarella.org; posting-host="+bxBiZT/p0ZLLuDb5H+JCw"; logging-data="22398"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+hexx3KtmNQ5SmpvyPhzE0" User-Agent: MT-NewsWatcher/3.5.3b3 (Intel Mac OS X) Cancel-Lock: sha1:s4EvQaiTJ9YTsSrFcqKTuJQCshs= Original-Xref: usenet.stanford.edu gnu.emacs.help:183821 X-Mailman-Approved-At: Sat, 01 Jan 2011 18:33:44 -0500 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:78036 Archived-At: In article <87sjxcv2ld.fsf@Compaq.site>, Cecil Westerhof wrote: > I have a lot of functionality written for my Emacs. I was asked to > maintain a server for a friend. I installed Emacs there and put my > Emacs functionality there also. But some things are depending on X. > Because of this I made those depended working with X. In the start of > my .emacs I have: > (defconst +using-X+ (getenv "DISPLAY")) > > And where I use X-functionality (not much at the moment) I have: > (unless (not +using-X+) Why use "unless + not" when you can simply use "when"? > (set-scroll-bar-mode 'right) > (tool-bar-mode -1)) The idiomatic way to do this is: (when (eq window-system 'x) ...) Also, these things are not dependent on X, they work with any window system (e.g. Mac, Windows). So you may just want to do: (when window-system ...) -- Barry Margolin, barmar@alum.mit.edu Arlington, MA *** PLEASE post questions in newsgroups, not directly to me *** *** PLEASE don't copy me on replies, I'll read them in the group ***