Top CICS Screen Navigation Controlling commands using DFHAID

The following DFHAID list we will use in the navigation of CICS Screens in the CICS-COBOL program.

DFHENTER: ENTER key.
DFHCLEAR: CLEAR key.
DFHPA1– DFHPA3 (Mapping Keys): PA1–PA3 keys.
DFHPF1– DFHPF24: PF1–PF24 keys.
DFHOPID: OPERID or MSR.
DFHMSRE: Extended (standard) MSR.
DFHTRIG: Trigger field.
DFHPEN: SELECTOR PEN or CURSOR SELECT key.
DFHCLRP: CLEAR PARTITION key.
DFHSTRF: Structured field pseudo-AID.

By putting COPY DFHAID into the program, we can use all the above variables for screen navigation.