Display Data Stream—Chapter 6
265TE 2000
5250 Terminal Emulation Programmer’s Guide
Results
The contents of each field that has an MDT bit on are returned to the
host system in the order that the fields appear in the format table, if one of
the following AID-generating keys is used:
S Roll up/Page down
S Roll down/Page up
S Enter/Rec Adv
S Unmasked function keys
If no MDT bits are on, or if the operator does not use one of the accept-
able AID-generating keys (Clear, Help, Print, or Record Backspace), only
the cursor and AID code are returned to the host system.
The host system can use field control words (FCWs) to rearrange the
sequence in which the fields are returned. If data is returned, the following
formatting is done. If the field is not a transparent data field, the following
occurs:
S Trailing nulls are stripped. If the field consists of all nulls, only the Set
Buffer Address, row, and column are returned.
S Leading and embedded nulls are converted to blanks.
If the field is signed numeric, the last character is not sent. If that same
field is negative, the zone position of the next-to-the-last character is
changed to hex D.
Hex 10 and hex 11 are control data. Avoid writing hex 10 and hex 11 to
the display as data unless they are written in transparent data fields.
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