From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#55208: 29.0.50; MS-Windows GUI selection dialogs and double-buffering Date: Sun, 01 May 2022 19:03:18 +0300 Message-ID: <83mtg15jg9.fsf@gnu.org> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="14791"; mail-complaints-to="usenet@ciao.gmane.io" To: 55208@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sun May 01 18:04:24 2022 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nlC3c-0003eo-Az for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 01 May 2022 18:04:24 +0200 Original-Received: from localhost ([::1]:44036 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nlC3a-00013i-I9 for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 01 May 2022 12:04:22 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:51508) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nlC3H-00010R-2A for bug-gnu-emacs@gnu.org; Sun, 01 May 2022 12:04:03 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:40107) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nlC3G-0000yS-In for bug-gnu-emacs@gnu.org; Sun, 01 May 2022 12:04:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1nlC3G-0006Nn-D5 for bug-gnu-emacs@gnu.org; Sun, 01 May 2022 12:04:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 01 May 2022 16:04:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: report 55208 X-GNU-PR-Package: emacs X-Debbugs-Original-To: bug-gnu-emacs@gnu.org Original-Received: via spool by submit@debbugs.gnu.org id=B.165142099524480 (code B ref -1); Sun, 01 May 2022 16:04:02 +0000 Original-Received: (at submit) by debbugs.gnu.org; 1 May 2022 16:03:15 +0000 Original-Received: from localhost ([127.0.0.1]:34004 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nlC2V-0006Ml-3p for submit@debbugs.gnu.org; Sun, 01 May 2022 12:03:15 -0400 Original-Received: from lists.gnu.org ([209.51.188.17]:50866) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nlC2T-0006Me-7d for submit@debbugs.gnu.org; Sun, 01 May 2022 12:03:13 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:51382) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nlC2T-0007wq-0R for bug-gnu-emacs@gnu.org; Sun, 01 May 2022 12:03:13 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:39398) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nlC2S-0000uM-KS for bug-gnu-emacs@gnu.org; Sun, 01 May 2022 12:03:12 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=Subject:To:From:Date:mime-version:in-reply-to: references; bh=p6HCTIDUMLGDQoL0ulQxS89fofYwiI6AdWyIwjLCfYk=; b=peZGN5iKwP2WIk Q5VqtEa9GrImRNnnQSr9/CdD3xfAzg9Ohg22WvssTEc8dGB5oexRwY5Awq7iVPs15s306njTp+XoT 1lMiuFex7s4m75mDCHTawZGGxhW16nxsr+mSe3nvTP4X4NiCoGIU/qh2sA0bU1ijgfK9vbPyAh/f3 f779QfSjepX7qQjtknBQB6tRzFcz4ZQDndAgYlwL7Z+BgmctTSlomUMavm69wxWM3Yxaj/M7IbtMk wcJkqiFVIO+1zXeckXAaq8OHpI5qsiMRir9nApujDrk8xqHjsMVVYkt216B4qAkAHvDQFahufmJho O8II6+A4dvtjp5OuD5mw==; Original-Received: from [87.69.77.57] (port=4907 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nlC2S-0008A6-3H for bug-gnu-emacs@gnu.org; Sun, 01 May 2022 12:03:12 -0400 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:231165 Archived-At: The double-buffering feature on MS-Windows has one unpleasant side-effect: when the user opens any GUI selection dialog that is provided by the MS-Windows "toolkit", dragging that dialog leaves its "ghost" shown in the Emacs frame. To reproduce: emacs -Q Click File->Open File Drag the file selection dialog with the mouse Observe that the dialog is indeed dragged, as expected, but it leaves its "ghost" at the original position I think this is related to the fact that, as long as the selection dialog is open, we don't update the Emacs display. With double-buffering disabled, the area across which the dialog is dragged is cleared (the text is not "erased", and only the background remains). Which is also not very nice, but it's much more subtle, so much so that I don't recall any bug reports about this. Showing the "ghost" of the menu there is much more prominent, so I hope we could at least go back to what we have without double-buffering. Bonus points for redrawing the text while the dialog is being dragged. In GNU Emacs 29.0.50 (build 968, i686-pc-mingw32) of 2022-05-01 built on HOME-C4E4A596F7 Repository revision: 9370a4763aacbb9278b5be9c92a2484e3652bc29 Repository branch: master Windowing system distributor 'Microsoft Corp.', version 5.1.2600 System Description: Microsoft Windows XP Service Pack 3 (v5.1.0.2600) Configured using: 'configure -C --prefix=/d/usr --with-wide-int --enable-checking=yes,glyphs 'CFLAGS=-O0 -gdwarf-4 -g3'' Configured features: ACL GIF GMP GNUTLS HARFBUZZ JPEG JSON LCMS2 LIBXML2 MODULES NOTIFY W32NOTIFY PDUMPER PNG RSVG SOUND SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS WEBP XPM ZLIB Important settings: value of $LANG: ENU locale-coding-system: cp1255 Major mode: Lisp Interaction Minor modes in effect: tooltip-mode: t global-eldoc-mode: t eldoc-mode: t show-paren-mode: t electric-indent-mode: t mouse-wheel-mode: t tool-bar-mode: t menu-bar-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t blink-cursor-mode: t line-number-mode: t indent-tabs-mode: t transient-mark-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t Load-path shadows: None found. Features: (shadow sort mail-extr emacsbug message mailcap yank-media rmc puny rfc822 mml mml-sec password-cache epa derived epg rfc6068 epg-config gnus-util text-property-search time-date seq gv subr-x byte-opt bytecomp byte-compile cconv mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader cl-loaddefs cl-lib sendmail rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils dired dired-loaddefs face-remap iso-transl tooltip eldoc paren electric uniquify ediff-hook vc-hooks lisp-float-type elisp-mode mwheel dos-w32 ls-lisp disp-table term/w32-win w32-win w32-vars term/common-win tool-bar dnd fontset image regexp-opt fringe tabulated-list replace newcomment text-mode lisp-mode prog-mode register page tab-bar menu-bar rfn-eshadow isearch easymenu timer select scroll-bar mouse jit-lock font-lock syntax font-core term/tty-colors frame minibuffer nadvice simple cl-generic cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese composite emoji-zwj charscript charprop case-table epa-hook jka-cmpr-hook help abbrev obarray oclosure cl-preloaded button loaddefs faces cus-face macroexp files window text-properties overlay sha1 md5 base64 format env code-pages mule custom widget keymap hashtable-print-readable backquote threads w32notify w32 lcms2 multi-tty make-network-process emacs) Memory information: ((conses 16 49989 12437) (symbols 48 6902 1) (strings 16 19268 3097) (string-bytes 1 540461) (vectors 16 11301) (vector-slots 8 161753 13124) (floats 8 25 198) (intervals 40 340 71) (buffers 888 10))