22.1.50; function (keyboard-coding-system) doesn't consistent with variable keyboard-coding-system

[Zhang Wei]

In my system (Windows XP, cp936 locale), function
(keyboard-coding-system) returns nil, while variable
keyboard-coding-system has a value of "cp936", this result in that
chinese characters can't be inputed with system input method, I have to
add (set-keyboard-coding-system 'cp936) in my ~/.emacs to make the
system input method work, which was not necessary some days ago.



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In GNU Emacs 22.1.50.1 (i386-mingw-nt5.1.2600)
 of 2007-09-03 on BREPHOME
modified by Zhangwei <address@hidden>.
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (3.4)'

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: CHS
  locale-coding-system: cp936
  default-enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  auto-image-file-mode: t
  display-time-mode: t
  show-paren-mode: t
  delete-selection-mode: t
  pc-selection-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
<help-echo> <down-mouse-1> <mouse-1> <down-mouse-1> 
<mouse-1> C-x 1 M-x r e p o r t - e m a c d s <backspace> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
C-g C-g C-g M-x r e p o r t e C-g M-x r e p o a r t 
C-g C-h v k e y b o a r d - c o d i n g - s y s t e 
m <return> ( k e y b o a r d M-/ ) C-j M-x r e p o 
a r t <backspace> <backspace> <backspace> o r <backspace> 
<backspace> r t - e m a c s - b u g <return>

Recent messages:
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