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What is DFHAID? what is its use?
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Answer / shiva
DFHAID=DEFINED FIELD HIRERACHY ATTENTION IDENTIFIER...
IT IS A SYSTEM DEFINED COPY BOOK IN WHICH FUNCTION KEYS
INFORMATION IS DECLARED USING VARIABLES....
| Is This Answer Correct ? | 36 Yes | 1 No |
Answer / thomas vt
DFHAID is an attention identifier. it is a group of keys
from F1 - F24(PF1-PF24) and A1 - A4 keys, along with ENTER
key and ESC key(for clear). we can set appropriate
functions for each key in a program by writing it inside an
EVALUATE keyword.
eg: EVALUATE DFHAID
WHEN PF1 perform exit
WHEN PF2 display 'hai'
WHEN OTHER display 'invalid key'
END-EVALUATE.
| Is This Answer Correct ? | 18 Yes | 0 No |
Answer / 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
| Is This Answer Correct ? | 7 Yes | 1 No |
Attention key identifier , in order to identify the attend
key in screen in your program, that means if the user
pressess the attention key in screen per say Enter, using
AID field you can reconginze and alter ur code execution
based on the aid field.
| Is This Answer Correct ? | 5 Yes | 0 No |
Answer / suriya
DFHAID IS THE ATTENTION IDENTIFIER.IF WE PRESS THE KEY IT
WILL STORED IN DFHAID.IT IS JUST LIKE A COPY BOOK. THE KEY
MEANS F3,F8,F7 LIKE THAT.
| Is This Answer Correct ? | 1 Yes | 0 No |
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COBOL 
