3276ns Emulation Mode
Program Access
(PA)
Keys
IBM
3276.
Pressing
a
PA
key signals
the
application program
that
you
want
its
attention.
On
the
IBM 3276,
PA1
and
PA2
are
Alternate
Shift keys. Upon pressing
the
key,
the
keyboard
locks
and
the
((DO
'NOT ENTER -
TIME"
message appears
in
the
Status
Line.
The
3276
with
a
data
entry
keyboard offers a PA3 key while
the
typewriter
keyboard model does not.
HP
2625A. Your
terminal
offers
the
PA1
and
PA2 keys
and
also a PA3 key.
PA1
and
PA2
are
standard-operation keys while PA3 is
an
Alternate
Shift key. When you press one of
these
keys,
the
status
message reads:
((x
System".
Cursor Select (CURSR SEL) Key
IBM
3276.
The
CURSR SEL key duplicates
the
function of
the
Selector
Light
Pen
feature
as
it
allows you to select items from a
table
or menu.
This key works
in
conjunction
with
((Cursor Selectable" fields.
The
terminal
recognizes two
types of Cursor Selectable fields: ((Selection" fields
and
(~ttention"
fields. A special desig-
nator
character, which
must
be
the
first character
in
the
field, differentiates
the
two
types
of
fields.
• A question
mark
(?) or a
greater-than
sign
(»
shows a selection field.
•
An
ampersand
(&),
a space, or a null character shows
an
attention
field.
Once
the
terminal
displays a selection menu, you locate those fields beginning
with
a ques-
tion
mark
to view
the
available choices.
To
((select"
an
item, you move
the
cursor within
the
selection field of your choice,
then
press
the
CURSR SEL key (or
any
other' I/O
initiating
key). This action changes
the
designator
character
to
the
greater-than
sign to show
that
this
item
was selected.
If
you decide to cancel
the
selection, you
must
position
the
cursor within
the
field
then
press
the
CURSR SEL key.
The designator
character
reverts
to
its
question
mark
form.
After you
have
made all your choices, you notify
the
program ofyour selections by moving
the
cursor to
an
attention
field
and
pressing
the
CURSR SEL key.
This
locks
the
keyboard
and
a
((DO
NOT ENTER -
TIME"
message appears. Consult
the
appropriate application
manuals
to
see how your program uses
this
feature.
HP
2625A.
Pressing
the
CURSR SEL key duplicates
this
operation, except
the
status
mes-
sage reads:
((X
System".
F-34
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