Release 10.1A: OpenEdge Development:
Progress 4GL Reference

CALL Statement

Transfers control to a dispatch routine (PRODSP) that then calls a C function. You write the C function using Progress Host Language Call (HLC) interface.

Progress HLC consists of a collection of C functions that:

Obtain data from Progress shared variables and buffers
Set data in Progress shared variables and buffers
Control screen modes
Provide Progress-like messages in the message area at the bottom of the screen

Using HLC, you can extend Progress with your own C functions.

Syntax

CALL routine-identifier [ argument ] ...

routine-identifier

The name the PRODSP dispatch routine used to identify the C function to call.

argument

One or more arguments that you want to pass to the C function.

See also

RUN statement