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Terminal Control
e. Disable Memory Lock mode and home the cursor. The display should appear as follows:
1. This is paragraph 1.
It should be the first one.
2. This is paragraph 2.
It should be the second one.
3. This is paragraph 3.
It should be the third one.
4. This is paragraph 4.
It should be the last one.
From the keyboard, you enable and disable memory lock mode using the
MEMORY LOCK
key.
The rows above the line containing the cursor are locked.
Normal editing can be performed within the locked rows; that is, the rows are locked by row
number only, so if lines are inserted among the locked rows, they become locked but the total
number of locked rows does not increase.
From a program executing in a host conlputer, you enable and disable Memory Lock mode
using the following escape sequences:
ENABLE:
Ec
DISABLE:
Ec m
Once enabled, Memory Lock mode remains enabled until explicitly disabled, until a hard
reset is performed, or until the power is turned off.
Smooth Scroll Mode
Smooth Scroll mode is selected with the
SMOOTH SCROLL
function key. As implied in the name,
lines are scrolled smoothly on or off the screen in Smooth Scroll mode, so that you can watch
them appear or disappear. When the terminal is not in Smooth Scroll mode, the top or bottom
line appears or disappears immediately, with no transition apparent to the eye.
CAUTION: Use of Smooth Scroll mode, while in Remote mode, may result in lost data,
unless a type of handshaking is used in which the terminal controls transmission
of data it receives. To ensure against lost data in an HP point-to-point environ- .
ment, set the EnqAck field on the Full Duplex Hardwired or Full Duplex Modem
Datacomm menu to YES; in a non-HP environment, set RecvPace to XON/XOFF..
Insurance against data loss in a multipoint environment is contained in the data
transfer protocol.
2-7
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