From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Marcin Borkowski Newsgroups: gmane.emacs.help Subject: Re: How to determine (from Elisp) whether the Emacs frame has focus? Date: Sat, 14 Nov 2015 09:44:25 +0100 Message-ID: <874mgpas2e.fsf@mbork.pl> References: <87fv09o9p5.fsf@mbork.pl> <20151114073041.GA22234@tuxteam.de> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1447493844 13381 80.91.229.3 (14 Nov 2015 09:37:24 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 14 Nov 2015 09:37:24 +0000 (UTC) Cc: help-gnu-emacs@gnu.org To: tomas@tuxteam.de Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Sat Nov 14 10:37:18 2015 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1ZxXGi-0002U0-Sp for geh-help-gnu-emacs@m.gmane.org; Sat, 14 Nov 2015 10:37:13 +0100 Original-Received: from localhost ([::1]:33106 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZxXGh-0008G2-W8 for geh-help-gnu-emacs@m.gmane.org; Sat, 14 Nov 2015 04:37:12 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:58572) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZxWRu-0003wC-4X for help-gnu-emacs@gnu.org; Sat, 14 Nov 2015 03:44:43 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZxWRq-0004BQ-Ul for help-gnu-emacs@gnu.org; Sat, 14 Nov 2015 03:44:42 -0500 Original-Received: from mail.mojserwer.eu ([2a01:5e00:2:52::8]:47167) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZxWRq-0004Aj-Ny for help-gnu-emacs@gnu.org; Sat, 14 Nov 2015 03:44:38 -0500 Original-Received: from localhost (localhost [127.0.0.1]) by mail.mojserwer.eu (Postfix) with ESMTP id EFFE78F201B; Sat, 14 Nov 2015 09:44:33 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at mail.mojserwer.eu Original-Received: from mail.mojserwer.eu ([127.0.0.1]) by localhost (mail.mojserwer.eu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id gRz4fuWn0fv6; Sat, 14 Nov 2015 09:44:31 +0100 (CET) Original-Received: from localhost (unknown [109.232.24.28]) by mail.mojserwer.eu (Postfix) with ESMTPSA id E40198F201A; Sat, 14 Nov 2015 09:44:29 +0100 (CET) User-agent: mu4e 0.9.15; emacs 25.0.50.1 In-reply-to: <20151114073041.GA22234@tuxteam.de> X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2a01:5e00:2:52::8 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.14 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.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:108060 Archived-At: On 2015-11-14, at 08:30, tomas@tuxteam.de wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On Fri, Nov 13, 2015 at 08:05:11PM -0800, John Mastro wrote: >> Marcin Borkowski wrote: >> > I'd like to know whether the selected Emacs frame has focus. Currently, >> > I'm using an xdotool/xprop combo (I'm on GNU/Linux), but I'd like to >> > know whether there is a better way. I know about focus-in-hook and >> > focus-out-hook, and I could make them set/unset some global variable, >> > but this looks hackish. >> >> Not that I can tell. >> >> I'm not sure if it would end up less hackish, but an alternative to >> global variables might be to use frame parameters. See the info nodes >> "(Elisp) Frame Parameters" and "(Elisp) Parameter Access". > > To be more specific, the function selected-frame (Info menu Frames / submenu > Input Focus) gives you the selected frame. That I know, I did my homework. Still, evaluating (progn (sit-for 3) (selected-frame)) and immediately going to, say, Evince, does not make Emacs say "nil", as I (somehow) expected. > Thanks, Jon for prompting me to read manuals and learn something :) That's usually good;-). Best, -- Marcin Borkowski http://octd.wmi.amu.edu.pl/en/Marcin_Borkowski Faculty of Mathematics and Computer Science Adam Mickiewicz University