I've used this for NT, 2000, and XP.  Works great...

3; Wed, 4 Dec 1996 14:36:22 -0600 (CST)
References: <9611038496.AA849638009@cccpp.com>
In-Reply-To: "Jeff McCarrell"'s message of Tue, 03 Dec 96 10:30:02 pdt
Message-ID: 
Lines: 43
X-Mailer: Red Gnus v0.66/Emacs 19.34
From: Shane Holder 
To: "Jeff McCarrell" 
Cc: cmcmahan@Teknowledge.COM, Jonathan Payne ,         ntem
acs-users@cs.washington.edu
Subject: Re: Re[2]: problem with caps/ctrl swap on NT 4.0
Date: 04 Dec 1996 14:36:21 -0600


Found this on the net somewhere.

Add this value:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\KeyBoard
Layout\Scancode Map

It's a binary value that lets you map keystrokes in the low-level keyboard
drivers in NT.  As a result you don't have to worry about applications
bypassing mappings that you've done at a higher level (i.e. it just works).
 Here's the format of the value:

        DWORD:  0x00000000      header
        DWORD:  0x00000000      header
        DWORD:  length (in DWORDs) of remaining data, including terminating DWO
RD
        DWORD:  mapping 1
        ...
        DWORD:  mapping n
        DWORD:  0x00000000      terminating null DWORD

Each mapping DWORD  has two parts: the input scancode, and an output
scancode.  To map scancode 0x1d (left control) to scancode 0x3a (caps
lock), you want a value of 0x003a001d.  Note that this does not swap the
keys.  Using just this mapping value, both the left control and the caps
lock key will behave as caps-lock.  To swap, you also need to map 0x3a to
0x1d, using 0x001d003a.  So, the complete registry value you'd use to swap
left-control and caps-lock is:

        00 00 00 00 00 00 00 00 03 00 00 00 1d 00 3a 00 3a 00 1d 00 00 00 00 00

This works on NT 4.0, I don't know about 3.51.  This registry value is
system wide, and can't be made user-specific.  It also only takes affect on
reboot.

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