Procedure Modules › How to Invoke a Procedure Module › Calling a Procedure Module

Calling a Procedure Module

First—Define input or work fields to hold argument values that are sent to the procedure module.

Second—Define input or work fields to receive values returned from the procedure module.

Usually, type 0 work fields are initialized to spaces (for alphanumeric fields) or zeros (for numeric fields).

Third—Issue a CALL statement from a type 7 parameter to the module being invoked:

• Rpt-nn, coded in columns 2 and 3, specifies a 2-digit number in the range 00 through 99 that identifies the CA Culprit report.
• Sss, coded in columns 5 through 7, specifies a 3-digit number indicating the sequence number of the type 7 parameter.
• Nn specifies a 2-digit number in the range 00 through 99 that identifies the procedure module.
• Module-argument specifies one or more values to be passed to and from the module.

  All values must be specified in sequence. To omit an alphanumeric argument, specify a blank enclosed in single quotation marks. To omit a numeric value, specify a zero.

Fourth—Reset argument values before reissuing a CALL to the same module.