pTAL Reference Manual (G06.24+, H06.09+, J06.03+)

Descriptions for STRUCT, PROC, PROC(32), and type, are included below. You can find
descriptions of the remaining data types in Chapter 3 (page 46).
STRUCT
means the parameter is one of:
A standard indirect or extended indirect definition structure (not supported in future
software platforms)
A standard indirect or extended indirect referral structure
PROC
is the address of the entry point of a procedure. You must assign PROC to a PROCPTR
before you can call it.
type
specifies that the parameter is a function procedure, the return value of which is one of the
following data types:
252 Procedures, Subprocedures, and Procedure Pointers