Output device field attributes
Device field attributes are defined in the DOF's DFLD statement. For 3270 display devices, specific attributes can be defined in the ATTR= keyword or EATTR= keyword of the DFLD statement, or default attributes are assumed.
For 3270 printers, 3770 terminals, and 3601 workstations, attribute simulation can be defined by specifying ATTR=YES or ATTR=nn in the DFLD statement. The message field definition corresponding to the device field can specify that the application program can dynamically modify, replace, or simulate device field attributes.