PFI-PFIO
Keys
Application programs can assign programmable funCtions
to
the Program Function
(PF) keys.
On the Data Entry keyboards there are lOPF keys (Figure 3-17).
Figure 3-17. Program Function (PF) Keys
Application programs can define the action
that
occurs when
anyone
of
the PF
keys
is
pressed.
By
doing this, each program can tailor the keyboard
to
fit its
specific needs. This adds flexibility to the keyboards and makes them more
powerful input devices.
One program might replace the document on the screen
with a different one whenever
PFI
is
pressed. When
you
are working with a
different program, pressing
PFI
might be a signal
that
you have keyed in all the
source data
that
you have available.
To determine the use
of
each
PF
key and the action
it
causes, ask the appropriate
person in
your
organization
how
the
PF
keys are used or refer
to
the appropriate
user's program guide.
Note:
The
PF
keys
are
typamatic when held down; however,
it
is
recommended
that
you
do
not
use the PF
key
typamatic capability, because the results
are
unpredictable.
Blank Keys (in Numeric Mode)
When
the
keyboard
of
a 3278 connected to a 3274
is
in Numeric Mode and the
cursor
is
in an input field, the A and Z keys generate a space when pressed. The
top
portion
of
these keys
is
blank.
On a
3278
connected to a 3276, the A and Z keys are ignored when the keyboard
is
in Numeric Mode; pressing either key when in Numeric Mode does
not
cause
the cursor to move.
3-24