FINAL TRIM SIZE : 7.0 in x 8.5 in
D
Keyboard Differences
Aside from the obvious dierence in the app earance of the ITF and PC
keyboards due to the arrangemen
t of the keys, there is also a dierence in the
keys and their output co des. Some k
eys on one k
eyboard (the ITF for example)
may not exist on the other k
eyboard. These keys generate co des whic
h also
may not exist as output from the other k
eyboard (or may b e generated b
y
a dierentkey). Co des that are generated when a k
ey is pressed are called
keycodes
.
Some applications expect to use specic
keycodes
generated bykeys existing on
one of the keyboards (the ITF keyboard for example). Since the keys do not
exist on the other keyboard (the PC keyboard for example), an accommo dation
must b e made if the PC keyboard is to be used. In most cases, it is still
possible to use some other key that is equivalent (generates the same
keycode
from a dierentkeycap). To do this, it is necessary to know whichkeys are
equivalent on the twokeyboards.
The follo wing tables compare the \equivalent" keys of the ITF and PC
keyboards. Keys not mentioned in either table have the same key symbols and
keycodes.
DRAFT
2/5/97 11:31
Keyboard Comparisons D-3
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