Attention identifier constants list (DFHAID)
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. The following table shows the symbolic name for each attention identifier (AID) value and the corresponding 3270 function.
You 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 DFHAIDFor C or C++ users, it consists
of a series of defined constants that are included in the application program
as follows:
#include <dfhaid.h>For PL/I users, it consists of DECLARE statements defining elementary
character variables as follows:
%include DFHAID| Constant | Meaning |
|---|---|
| DFHENTER | ENTER key |
| DFHCLEAR | CLEAR key |
| DFHNULL | NULL value |
| DFHPA1 - DFHPA3 | PA1 - PA3 keys |
| DFHPF1 - DFHPF24 | PF1 - PF24 keys |
| DFHOPID (see note) | OPERID |
| DFHMSRE (see note) | Extended (standard) MSR |
| DFHTRIG (see note) | Trigger field |
| DFHPEN (see note) | CURSOR SELECT key |
| DFHCLRP (see note) | CLEAR PARTITION key |
| DFHSTRF (see note) | Structured field pseudo-AID |
Note: DFHOPID, DFHMSRE, DFHTRIG, DFHPEN, DFHCLRP, and DFHSTRF are
ignored on TXSeries for Multiplatforms,
but can be used for transaction routing.