Pathway/iTS SCREEN COBOL Reference Manual (H06.10+, J06.03+)

Data Division
HP NonStop Pathway/iTS SCREEN COBOL Reference Manual—426750-003
5-35
Field-Characteristic Clauses
ADVISORY Clause
The ADVISORY clause identifies a single output or input-output field as the field to be
used for informational and error messages generated by the TCP.
Every base screen should have an advisory field. The field should be alphanumeric
with a size of at least 35 characters. Error messages that appear in this field are
described in Appendix A.
An overlay screen must not have an advisory field.
The ADVISORY clause cannot be associated with a field that allows only double-byte
data.
For terminals in conversational mode, an advisory field must be defined for the screen,
or the standard advisory messages are not displayed on the terminal.
AT Clause
The AT clause specifies the location of the field.
line-spec
specifies the line in which the field begins.
column-spec
specifies the column in which the field begins.
Both line-spec and column-spec can appear in the following forms:
numeric-literal
This form represents the line or column relative to the beginning of the screen.
* [ { + | - } numeric-literal ]
This form represents a location relative to the current position. The current
position begins at line 1, column 1 and is advanced to the first available position
following a field after that field is declared.
[ WHEN { ABSENT } { CLEAR } ]
[ { BLANK } { SKIP } ]
[ [ WHEN ] FULL { TAB } ]
[ { LOCK } ]
ADVISORY
AT line-spec , column-spec