HI - Help Character

The character which is to be used to invoke a field-specific helproutine or a map helproutine.

The character specified with the profile parameter HI must not be the same as the one specified with the profile/session parameter CF (control character for mainframe terminal commands); it should not be the same as the one specified with the profile/session parameter DC (decimal character), profile/session parameter IA (input assign character) or profile/session parameter ID (input delimiter character).

Numeric fields which have a helproutine assigned are internally translated to alphanumeric format so as to make it possible for the user to enter a question mark into the field to invoke the helproutine.

To prevent this internal translation (that is, if you wish to make sure that alphabetical characters cannot be entered into a numeric field) you can set the profile parameter HI to blank.

When HI=' ' is set, a help key must be defined in the Natural application, using the SETKEY statement correspondingly; otherwise it is not possible to invoke a helproutine for any field.