EXTDSPOPT(a b c)
EXTDSPOPT specifies the options to use for extended ACCEPT
and extended DISPLAY statements for workstation I/O, and takes the
form:
EXTDSPOPT(a b c)
Where a is DFRWRT or NODFRWRT, b is UNDSPCHR or NOUNDSPCHR,
and c is ACCUPDALL or ACCUPDNE.
- DFRWRT indicates that extended DISPLAY statements
are held in a buffer until an extended ACCEPT statement is encountered,
or until the buffer is filled.
The contents of the buffer are written to the display when the extended ACCEPT statement is encountered or the buffer is full. DFRWRT is the default value.
- NODFRWRT indicates that each extended DISPLAY statement is performed as it is encountered.
- UNDSPCHR indicates that displayable and undisplayable characters are handled by extended ACCEPT and extended DISPLAY statements. UNDSPCHR is the default value.
- NOUNDSPCHR indicates that only displayable characters are
handled by extended ACCEPT and extended DISPLAY statements.
Although you must use this option for display stations attached to remote 3174 and 3274 controllers, you can also use it for local work stations. If you do use this option, your data must contain displayable characters. If the data contains values less than hexadecimal 20, the results are not predictable, ranging from unexpected display formats to severe errors.
- ACCUPDALL indicates that all types of data are predisplayed in the extended ACCEPT statements regardless of the existence of the UPDATE phrase. ACCUPDALL is the default value.
- ACCUPDNE indicates that only numeric-edited data are predisplayed in the extended ACCEPT statements that do not contain the UPDATE phrase.