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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 of your 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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