IBM Extension

CONTROL-AREA Clause

This clause specifies device-dependent and system-dependent information used to control input/output operations for TRANSACTION files.

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CONTROL-AREA Clause - Format

                (1)                        
>>-CONTROL-AREA------+----+--data-name-7-----------------------><
                     '-IS-'                

Notes:
  1. IBM Extension
data-name-7
A data-item (2, 12, or 22 characters long) defined in the LINKAGE, LOCAL-STORAGE or WORKING-STORAGE SECTIONS, of the following format:
01    data-name-7
      05   function-key  PIC X(2)
      05   device-name   PIC X(10)
      05   record-format PIC X(10)
Where:
function-key
Is a 2-digit number inserted in the field by the workstation interface that identifies the function key the operator pressed to initiate the transaction.
Number
Meaning
00
Enter key
01-24
Function keys 1 through 24
90
Roll up / Page down key
91
Roll down / Page up key
92
Print key
93
Help key
94
Clear key
95
Home key
99
Undefined
device-name
The program device name
record-format
The DDS record format name that was referenced by the last input/output statement run.
End of IBM Extension