I-Data 5250 ALLY - Manual (Page 190)

AGILE 5250 ALLY User’s Guide and Reference Page B-8
Command: Word Underscore (WUS)
Format: 23
Printers: 3812, 5219
Action: Causes the preceding word to be underscored.
The beginning of the word is delimited by any of the
following commands:
Underscore
Word Underscore
Space Numeric Space
Back Space Unit Back Space
Horizontal Tab Indent Tab
Justify Text Field New Line
Required New Line Line Feed
Carriage Return Form Feed
Required Form Feed Print Position
Interchange Record Separator
IBMEMUL: Same as IBM.
If Option 53 — Underlining is set to 00 (!AGILE!
53=00;), PFS 27 — UNDL ON is sent to the printer
before the word to be underscored. PFS 28 —
UNDLOFF is sent to the printer after the word to end the
underscoring. Normally these PFSs turn underlining on
and off at the target printer.
If Option 53 — Underlining is set to 01 (!AGILE!
53=01;), underlining is achieved by sending underscore
characters in a second pass through the line.
275EMUL: No operation.