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.