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: scroll-down with pixel transition Date: Mon, 10 Apr 2017 10:42:49 +0300 Message-ID: <83efx0lnd2.fsf@gnu.org> References: <83mvbols77.fsf@gnu.org> <51DD8835-1124-41A4-85E1-9B7B8DC9E1D4@misasa.okayama-u.ac.jp> Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1491810202 7033 195.159.176.226 (10 Apr 2017 07:43:22 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Mon, 10 Apr 2017 07:43:22 +0000 (UTC) Cc: emacs-devel@gnu.org To: Tak Kunihiro Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Mon Apr 10 09:43:16 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 1cxTyj-0001eY-2P for ged-emacs-devel@m.gmane.org; Mon, 10 Apr 2017 09:43:13 +0200 Original-Received: from localhost ([::1]:32837 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cxTyn-0007tn-9T for ged-emacs-devel@m.gmane.org; Mon, 10 Apr 2017 03:43:17 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:37406) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cxTyC-0007ti-Fp for emacs-devel@gnu.org; Mon, 10 Apr 2017 03:42:41 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cxTy8-0005vc-0b for emacs-devel@gnu.org; Mon, 10 Apr 2017 03:42:40 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:34881) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cxTy7-0005vW-Ti; Mon, 10 Apr 2017 03:42:35 -0400 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:2060 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1cxTy7-00041J-76; Mon, 10 Apr 2017 03:42:35 -0400 In-reply-to: <51DD8835-1124-41A4-85E1-9B7B8DC9E1D4@misasa.okayama-u.ac.jp> (message from Tak Kunihiro on Mon, 10 Apr 2017 16:06:37 +0900) 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:213832 Archived-At: > From: Tak Kunihiro > Date: Mon, 10 Apr 2017 16:06:37 +0900 > Cc: Kunihiro Tak , > emacs-devel@gnu.org > > > Scroll down one line, then use set-window-vscroll to scroll up by > > pixels? > > It works. > Is there a way to visually hide the overshoot on (scroll-down 1)? I don't understand the question. The display is only refreshed when you call sit-for, so you have complete control of that already, and AFAICS the code does what you told it to do. Am I missing something? (Btw, I think (sit-for 0) should also work, you don't need the 1 msec delay.)