Designing and Using Forms
CURSOR
CONTROL
KEYS,
ROLL
U~
ROLL
DOWN.These keys
may
be
used to position
the
cursor
in
a
transmit-only
field.
CLEAR
LINE/CLEAR
DISPLAY.The Clear Line
and
Clear
Display operations perform
as
follows,
in
Format
mode:
Clear
Line:
If
the
cursor is positioned
in
an
unprotected or
transmit-only
field, all
displaying
and
non-displaying
characters
(except protected video enhancements)
are
cleared from
the
current
cursor position
through
the
end
of
the
current
field.
Clear
Display:
If
the
cursor is positioned
within
an
unprotected
or
transmit-only
field, all
displaying
and
non-displaying
characters
(except protected video
enhancements)
are
cleared
from
the
current
cursor position
through
the
end of
the
current
field.
In
addition, all subse-
quent
unprotected fields
are
cleared.
Any
change of
enhancements
between
the
((start field"
and
((stop field"locations will be
cleared
whenever
they
lie
within
the
range
of a clear display
or
clear
line
operation.
If
the
cursor is
in
a protected field, these commands
have
no effect.
INSERT
CHARACTER.
The
insert
character
function affects only those
characters
from
the
cursor position
through
the
end
of
the
current
field.
If
the
cursor
is
within
a protected
field,
it
automatically moves to
the
first
character
position of
the
next
unprotected field
when
the
first
character
is inserted.
The
cursor moves to
the
next
unprotected field
when
it
reaches
the
last
position of
the
current
field. (When
the
last
unprotected field is filled,
the
cursor
remains
outside it,
and
only
returns
to
the
uhome up"position
when
the
next
character
is
entered.)
DELETE
CHARACTER.
When
the
cursor is positioned
within
an
unprotected
or
transmit-
only field,
the
delete
character
function affects only those
characters
from
the
cursor
position
through
the
end
of
the
current
field. A protected video
enhancement
and/or
an
alternate
character
set
are
not
altered
by
the
delete
character
function.
If
the
cursor is
not
within
a
protected or
transmit-only
field,
the
delete
character
function
has
no effect.
INSERT/DELETE
CHARACTER
WITH
WRAPAROUND.
Insert
With
Vvrap
and
Delete
With Wrap will function
as
simple
Insert
and Delete functions
without
wrap.
INSERT/DELETE
LINE.
These functions
are
disabled
when
Format
mode is
entered.
MARGINS
AND
TABS.All
margins
and
tabs
are
cleared when
the
terminal
enters
Format
mode.
NEXT
PAGE/PREV
PAGE.
The
cursor is moved to
the
first
unprotected location on
the
new page.
HOW TO SEND FORMAT MODE
DATA
TO A HOST COMPUTER
To
send
data
to a
host
computer
in
Format
mode, refer to
the.
key
discussion
in
Section 9.
5-10
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