bug#11138: 23.3; on Windows, message-box does not display line breaks in

When I run this code:

(message-box (concat "First line in a long-ish message.\n"

"This is line number 2 in the message."))

The message gets displayed in one very wide dialog box.

I would expect it to break at the \n. Line breaks work, apparently,

on Linux, so I am told. But I have confirmed with others that they

see this anomalous message-box behavior on Windows .

In GNU Emacs 23.3.1 (i386-mingw-nt6.1.7601)

of 2011-03-10 on 3249CTO

Windowing system distributor `Microsoft Corp.', version 6.1.7601

configured using `configure --with-gcc (4.5) --no-opt --cflags -Ic:/imagesupport/include'

Important settings:

value of $LC_ALL: nil

value of $LC_COLLATE: nil

value of $LC_CTYPE: nil

value of $LC_MESSAGES: nil

value of $LC_MONETARY: nil

value of $LC_NUMERIC: nil

value of $LC_TIME: nil

value of $LANG: ENU

value of $XMODIFIERS: nil

locale-coding-system: cp1252

default enable-multibyte-characters: t

Major mode: Dired by ext

Minor modes in effect:

show-paren-mode: t

recentf-mode: t

shell-dirtrack-mode: t

yas/global-mode: t

yas/minor-mode: t

global-hl-line-mode: t

hl-line-mode: t

tooltip-mode: t

mouse-wheel-mode: t

menu-bar-mode: t

file-name-shadow-mode: t

global-font-lock-mode: t

font-lock-mode: t

blink-cursor-mode: t

auto-encryption-mode: t

auto-compression-mode: t

line-number-mode: t

transient-mark-mode: t

Recent input:

<C-left> u i - l i g h t n e s s <escape> d <C-left>

<C-left> <left> <escape> SPC <C-left> <left> C-w C-y

C-y <escape> b s t a r t <escape> d C-b C-b C-b C-b

C-b C-b <escape> SPC <escape> b C-b C-w C-y C-t C-x

u <escape> SPC <escape> C-b C-w C-y C-y <escape> b

h u m a n i t y <escape> d C-n C-n C-n C-n C-x C-s

<C-right> <C-right> <C-right> <C-right> <C-right> <C-right>

<C-right> <C-left> <left> <backspace> 1 <down> <down>

<C-right> <C-right> <right> u i . <escape> b <backspace>

- C-x C-s C-x C-f <backspace> <return> g s C-p C-p

C-p C-n C-n C-n u C-p C-p <help-echo> <down> f C-e

C-e <down> C-e <up> C-e <left> <C-left> <C-left> <C-left>

<down> <down> <down> <down> <down> C-x C-s C-x C-f

<backspace> <return> C-p C-p C-p C-p C-p C-p f C-n

C-n C-n C-n C-e C-b C-b C-d C-n C-x C-s C-x k <return>

C-n f C-n C-n C-e C-n C-n C-p C-p C-p C-n C-n C-n C-n

C-n C-x k <return> C-n C-n C-n C-n C-n C-n C-n C-p

C-p C-x b t h e <tab> C-g C-x C-f <escape> <backspace>

e l <tab> <return> <escape> SPC <escape> > C-w C-y

C-x k <return> y e s <return> <help-echo> <help-echo>

<help-echo> <help-echo> <help-echo> <escape> x r e

p o r t - e m <tab> <return>

Recent messages:

Directory has changed on disk; type g to update Dired

Saving file c:/Users/Dino/elisp/snippets/html-mode/script-jquery-ui...

Wrote c:/Users/Dino/elisp/snippets/html-mode/script-jquery-ui

Saving file c:/Users/Dino/elisp/snippets/html-mode/script-jquery-ui...

Wrote c:/Users/Dino/elisp/snippets/html-mode/script-jquery-ui

Saving file c:/Users/Dino/elisp/snippets/html-mode/link...

Wrote c:/Users/Dino/elisp/snippets/html-mode/link

Quit

Mark set [2 times]

Auto-saving...

Load-path shadows:

/users/dino/elisp/refill hides c:/emacs/lisp/textmodes/refill

Features:

(shadow sort mail-extr message ecomplete rfc822 mml mml-sec

password-cache mm-decode mm-bodies mm-encode mailabbrev nnheader

gnus-util netrc gmm-utils mailheader canlock sha1 hex-util hashcash

emacsbug sgml-mode holidays hol-loaddefs cal-menu calendar cal-loaddefs

ebnf2ps ps-print ps-def lpr epg-config ansi-color goto-addr nxml-uchnm

rng-xsd xsd-regexp rng-cmpct rng-nxml rng-valid rng-loc rng-uri

rng-parse nxml-parse rng-match rng-dt rng-util rng-pttrn nxml-ns

nxml-mode nxml-outln nxml-rap nxml-util nxml-glyph nxml-enc xmltok

vbs-mode browse-url mail-utils info find-func dabbrev smart-op

flymake-for-jslint-for-wsh autopair js json etags imenu dired-aux tabify

compare-w rfringe paren csharp-mode cc-langs cc-mode cc-fonts cc-menus

cc-cmds align mule-util pp grep time-stamp multi-isearch conf-mode

newcomment cl-specs edebug url-cache format-spec url-http tls mail-parse

rfc2231 rfc2047 rfc2045 qp ietf-drums time-date url-gw url-auth url

url-proxy url-privacy url-expand url-methods url-history url-cookie

url-util url-parse url-vars mm-util mail-prsvr mailcap autorevert server

thesaurus recentf tree-widget flyphpcs flymake-cursor byte-opt warnings

bytecomp byte-compile flymake compile synonyms-autoloads package

cperl-mode jsshell-bundle jsshell shell comint ring hideshow cc-styles

cc-align cc-engine cc-vars cc-defs dired regexp-opt defaultcontent

thingatpt yasnippet dropdown-list derived easy-mmode help-mode view

assoc cl cl-19 tfs skeleton edmacro kmacro httpget hl-line advice

help-fns advice-preload cus-edit easymenu cus-start cus-load wid-edit

tooltip ediff-hook vc-hooks lisp-float-type mwheel dos-w32 disp-table

ls-lisp w32-win w32-vars tool-bar dnd fontset image fringe lisp-mode

jit-lock font-lock syntax facemenu font-core frame cham georgian

utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean

japanese hebrew greek romanian slovak czech european ethiopic indian

cyrillic chinese case-table epa-hook jka-cmpr-hook help simple abbrev

loaddefs button minibuffer faces cus-face files text-properties overlay

md5 base64 format env code-pages mule custom widget

hashtable-print-readable backquote make-network-process multi-tty emacs)

From:	Dino Chiesa
Subject:	bug#11138: 23.3; on Windows, message-box does not display line breaks in the message
Date:	Sat, 31 Mar 2012 07:53:40 -0700