Learning interactively to program with GDDM

GDDM V3R2 Base Application Programming Guide

Learning interactively to program with GDDM

GDDM V3R2 Base Application Programming Guide
SC33-0867-01

If you write programs on a subsystem that supports the REXX programming language, such as CMS or TSO, you can use the ERXTRY exec, which is supplied with GDDM, to try out GDDM calls as you learn them.

ERXTRY executes each call the moment you issue it, so you can build up a picture on your display call by call.

In this way you can write simple GDDM routines in REXX, without much knowledge of the language at all.

GDDM call statements in REXX can be easily converted into other programming languages. More information about ERXTRY can be found under "ERXTRY--the easiest way to write GDDM-REXX programs" in topic 1.7.3.1.

Notices | Terms of use | Support | Contact z/OS