Using symbol sets

GDDM V3R2 Base Application Programming Guide

Using symbol sets

GDDM V3R2 Base Application Programming Guide
SC33-0867-01

"Drawing graphics pictures" in topic 2.0, describes the use of symbols sets for graphics markers and shading patterns. Symbol sets are even more useful in GDDM applications that perform alphanumeric and graphics text tasks.

You do not need to specify a symbol set for either graphics or alphanumeric text: GDDM always supplies a default. If you want to use a symbol set other than the default set, there are two operations that your program must perform.

The first is to load the required symbol set into main storage. This is best done before the program opens any graphics segments. Several symbol sets can be loaded and stored concurrently, so the second operation is to specify which one is to be used for a given piece of text.

Table 4 in topic 12.1 shows these operations, as steps 1 and 3, in the context of the other major text output calls.

Most of this topic applies to devices with programmed symbols. For device variations, see "Device variations with symbol sets" in topic 12.12.

Subtopics:

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