bug#9925: 24.0.91; Maxmized, minimize, restore: emacs window hides under taskbar

[Rolf Campbell]

This bug report will be sent to the Bug-GNU-Emacs mailing list
and the GNU bug tracker at debbugs.gnu.org.  Please check that
the From: line contains a valid email address.  After a delay of up
to one day, you should receive an acknowledgement at that address.
 
Please write in English if possible, as the Emacs maintainers
usually do not have translators for other languages.
 
Please describe exactly what actions triggered the bug, and
the precise symptoms of the bug.  If you can, give a recipe
starting from `emacs -Q':
 
1) Move Windows XP taskbar to left side of screen.
1) Run "emacs -Q"
2) Click the maximize button (in the window title bar).
3) Click the minimize button (in the window title bar).
4) Click the emacs taskbar button.

Expected Result:
Emacs window should be in the same position as it was after step #2.

Actual Result:
Emacs window is shoved to the left-hand edge of the screen, partly obscured 
behind the taskbar.

The strange thing about this is that I have 2 Windows XP systems which I've 
tried this exact recipe (with the same version of Emacs), and I can only 
reproduce this problem on one of them (this one).

Searching found this bug report from more than 10 years ago complaining about 
the same thing: 
http://lists.gnu.org/archive/html/bug-gnu-emacs/2001-05/msg00022.html

This is not a new bug, I was able to reproduce on v23.1 and v23.3.

------------------------
 
If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
For information about debugging Emacs, please read the file
c:/Program Files/emacs-24.0.91/etc/DEBUG.
 

In GNU Emacs 24.0.91.1 (i386-mingw-nt5.1.2600)
 of 2011-10-30 on MARVIN
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (4.6) --no-opt --cflags 
-I"D:/devel/emacs/libs/libXpm-3.5.8/include" 
-I"D:/devel/emacs/libs/libXpm-3.5.8/src" 
-I"D:/devel/emacs/libs/libpng-dev_1.4.3-1/include" 
-I"D:/devel/emacs/libs/zlib-dev_1.2.5-2/include" 
-I"D:/devel/emacs/libs/giflib-4.1.4-1/include" 
-I"D:/devel/emacs/libs/jpeg-6b-4/include" 
-I"D:/devel/emacs/libs/tiff-3.8.2-1/include" 
-I"D:/devel/emacs/libs/gnutls-2.10.1/include" --ldflags 
-L"D:/devel/emacs/libs/gnutls-2.10.1/lib"'
 
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: Fundamental
 
Minor modes in effect:
  shell-dirtrack-mode: t
  pc-selection-mode: t
  show-paren-mode: t
  delete-selection-mode: t
  auto-insert-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t
 
Recent input:
<lwindow> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<menu-bar> <help-menu> <about-emacs> <help-echo> <help-echo> 
<lwindow> <lwindow> <lwindow> <lwindow> <help-echo> 
<lwindow> <help-echo> M-x r e p o r t <tab> <retur
n>
 
Recent messages:
Loading autoinsert...done
Loading delsel...done
Loading grep...done
Loading paren...done
Fill column set to 77 (was 70)
For information about GNU Emacs and the GNU system, type C-h C-a.
Package pc-select is obsolete!
For information about GNU Emacs and the GNU system, type C-h C-a.
 
Load-path shadows:
None found.
 
Features:
(shadow sort gnus-util mail-extr message format-spec rfc822 mml mml-sec
mm-decode mm-bodies mm-encode mail-parse rfc2231 rfc2047 rfc2045
ietf-drums mm-util mail-prsvr mailabbrev mail-utils gmm-utils mailheader
emacsbug etags ido ffap python-21 python easymenu tex-mode shell
pcomplete skeleton edmacro kmacro pc-select paren grep compile comint
regexp-opt ring delsel autoinsert cus-start cus-load time-date 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 register
page menu-bar rfn-eshadow timer select scroll-bar mouse 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 minibuffer button
faces cus-face files text-properties overlay sha1 md5 base64 format env
code-pages mule custom widget hashtable-print-readable backquote
make-network-process multi-tty emacs)