From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Michael Heerdegen Newsgroups: gmane.emacs.help Subject: Re: What function does a button click call? Date: Sun, 26 Oct 2014 20:19:26 +0100 Message-ID: <87lho2oczl.fsf@web.de> References: <87r3xuoetu.fsf@web.de> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1414351217 1064 80.91.229.3 (26 Oct 2014 19:20:17 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 26 Oct 2014 19:20:17 +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 Oct 26 20:20:10 2014 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 1XiTMH-0002K1-8b for geh-help-gnu-emacs@m.gmane.org; Sun, 26 Oct 2014 20:20:09 +0100 Original-Received: from localhost ([::1]:58148 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XiTMG-0003hU-RR for geh-help-gnu-emacs@m.gmane.org; Sun, 26 Oct 2014 15:20:08 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:42935) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XiTLz-0003YM-LT for help-gnu-emacs@gnu.org; Sun, 26 Oct 2014 15:19:59 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XiTLs-0000pz-5n for help-gnu-emacs@gnu.org; Sun, 26 Oct 2014 15:19:51 -0400 Original-Received: from plane.gmane.org ([80.91.229.3]:44224) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XiTLr-0000pv-VL for help-gnu-emacs@gnu.org; Sun, 26 Oct 2014 15:19:44 -0400 Original-Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1XiTLq-0002An-ST for help-gnu-emacs@gnu.org; Sun, 26 Oct 2014 20:19:42 +0100 Original-Received: from ip-90-186-147-240.web.vodafone.de ([90.186.147.240]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 26 Oct 2014 20:19:42 +0100 Original-Received: from michael_heerdegen by ip-90-186-147-240.web.vodafone.de with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 26 Oct 2014 20:19:42 +0100 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 24 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: ip-90-186-147-240.web.vodafone.de User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux) Cancel-Lock: sha1:j3XyCERUJ5DW5JfuTEBwoZfjypU= X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 80.91.229.3 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:100618 Archived-At: Michael Heerdegen writes: > Try M-x debug-on-entry widget-button-click RET to find out what > happens when pressing the button. BTW, a good strategy to find out what happens after hitting some key is to use C-c k to see which command will be invoked, and then to M-x debug-on-entry this command. I do that so often that I wrote an own command doing that, and bound it to a simple key: (defun my-debug-on-next-key () "Enter the debugger for the next command." (interactive) (let* ((keys (read-key-sequence "Debugging next key sequence...")) (cmd (key-binding keys))) (debug-on-entry cmd) (unwind-protect (call-interactively cmd keys) (cancel-debug-on-entry cmd)))) Regards, Michael.