What is DFHAID? what is its use?

Answer Posted / vishi

The standard attention identifier list, DFHAID, simplifies
the testing of the contents of the EIBAID field after a
Basic Mapping Support (BMS) or terminal control input operation.

We can Get the standard attention identifier list by
including the DFHAID copybook in your application program:

For COBOL users, it consists of an 01 statement and a set of
02 statements that must be copied into the working storage
section, as follows:

COPY DFHAID

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