HP 262SA - Page 365

3276/78 Emulation Mode
ERASING· THE DISPLAY
The 3276 has three keys (CLEAR, ERASE EOF, and ERASE INPUT) that erase all or part of
the display. The resulting operation may also reposition the cursor.
Clear Key
IBM 3276. Simultaneously pressing the ALT key and the CLEAR key initiates these actions:
•
The cursor moves to the first position in the first line of the display and the entire screen is
cleared. This converts the screen to an unformatted display.
•
If an alternate screen size is in effect, the Clear function changes the format to the default
workspace size.
• As
the CLEAR key is an I/O key, pressing the CLEAR key locks the keyboard and the
«DO NOT ENTER - TIME" message appears in the Status Line.
HP 2625A. Pressing the CLEAR key duplicates this operation, except the status message
reads: ttx System".
Erase End Of Field (ERASE EOF) Key
IBM 3276. Pressing the ERASE EOF key leaves the cursor at its current location and erases
from the cursor's position forward depending upon the screen format:
•
When the cursor is in an unprotected (ttinput") field, pressing this key erases all character
positions from the cursor's current location to the end of that field. When a field wraps
around screen boundaries, the erase operations also wraps around to the end of the field.
•
When the screen contains an unformatted display, pressing the ERASE EOF key erases all
character positions from the cursor's current location to the last character position in the
display.
• If the cursor is at an attribute byte or in a protected field when you press the ERASE EOF
key, the keyboard locks and the message ttGo E1 sewhere" appears in the Status Line.
HP 2625A. Pressing the ERASE EOF key duplicates this operation.
Erase Input Key
IBM 3276. Simultaneously pressing the ALT key and the ERASE INPUT key moves the
cursor and clears portions of the screen depending upon the screen's format:
•
If the screen contains a formatted display with input fields, simultaneously pressing the
ALT key and the ERASE INPUT key erases all input areas and moves the cursor to the first
unprotected character position on the screen.
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