From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: NSTRACE: Create message indicating window and/or buffer. Date: Thu, 07 Sep 2017 17:56:04 +0300 Message-ID: <83y3pqzhff.fsf@gnu.org> References: Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1504796246 2829 195.159.176.226 (7 Sep 2017 14:57:26 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Thu, 7 Sep 2017 14:57:26 +0000 (UTC) Cc: emacs-devel@gnu.org To: Keith David Bershatsky Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Thu Sep 07 16:57:12 2017 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dpyEb-0007UZ-Nj for ged-emacs-devel@m.gmane.org; Thu, 07 Sep 2017 16:56:49 +0200 Original-Received: from localhost ([::1]:40815 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dpyEg-0007Sb-S2 for ged-emacs-devel@m.gmane.org; Thu, 07 Sep 2017 10:56:54 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:38228) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dpyE1-0007S6-L9 for emacs-devel@gnu.org; Thu, 07 Sep 2017 10:56:21 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dpyDs-0002cx-GZ for emacs-devel@gnu.org; Thu, 07 Sep 2017 10:56:13 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:59143) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dpyDs-0002cn-DO; Thu, 07 Sep 2017 10:56:04 -0400 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:1904 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1dpyDr-0001Uu-6A; Thu, 07 Sep 2017 10:56:04 -0400 In-reply-to: (message from Keith David Bershatsky on Wed, 06 Sep 2017 22:07:53 -0700) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2001:4830:134:3::e X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:217979 Archived-At: > Date: Wed, 06 Sep 2017 22:07:53 -0700 > From: Keith David Bershatsky > > I would like to insert a NSTRACE message to let me know the window and/or buffer at issue. > > For example, ns_update_window_end contains a first argument of `w`. I would like to see the pretty human readable name for that window, just like what we see when running `M-x trace-redisplay`. The `%s` format argument requires a `char`, and rejects a Lisp_Object. > > How can I achieve this feature? Something like this should work: if (BUFFERP (w->contents) && STRINGP (BVAR (XBUFFER (w->contents), name))) fprintf (stderr, "window %s\n", SSDATA (BVAR (XBUFFER (w->contents), name)); This prints the name of the buffer shown in the window.