Re: Keyboard Madness!

[dempson@atlantis.actrix.gen.nz (David Empson)]

In article <3jbia7$987@acme.freenet.columbus.oh.us>,
Dave Althoff <dalloff@freenet.columbus.oh.us> wrote:
> 
> Of course. And it is a serious limitation for other reasons as well.  If I
> am not mistaken (which, naturally, I could be!), one of the features I've
> come to really like about the GS would vanish if the keyboard were not ADB
> compatible...since the GS allows the keys to all be seperately identified,
> I can send ^J, ^K, ^H, and ^U characters to my Internet service without
> any gymnastics, while my term program converts all the arrow keys to the
> VT-100 equivalents.

The arrow keys cannot be specifically identified with an ADB keyboard
(unless you bypass the keyboard micro and handle the scan codes
directly).

The reason the arrow keys can be distinguished from Ctrl-H, etc. is
that the Control key can be detected.  If you try pressing
Ctrl-Left-Arrow, for example, the computer will think you've pressed
Ctrl-H.

All the modifier keys should be detectable with the IIe keyboard,
because they are all fed directly into the keyboard microcontroller,
so it should be possible to distinguish Left Arrow from Ctrl-H.

-- 
David Empson
dempson@actrix.gen.nz
Snail mail: P.O. Box 27-103, Wellington, New Zealand