Mail Archives: cygwin/1998/01/11/14:00:49
>Does anybody know of an NT kernel hack that switches the caps-lock key
>with the control key (that lies under the shift key on most machines
>these days)? I just can't adjust to the idea that the control key
>should be so inaccessible. I'm an Emacs/bash bigot, and I like using
>the control key a lot.
sure, enjoy (author is unknown). on my system, i totally disabled CAPS LOCK,
so both
keys act like CONTROL key
my system (caps -> ctrl) has this setting:
00 00 00 00 - 00 00 00 00 - 02 00 00 00 - 1d 00 3a 00 - 00 00 00 00
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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
DWORD
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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