You access all these graphics routines with the same format of the CALL statement.
CALL GDDM *-------------* V + ->->--CALL "GDDM" USING---routine-name--*-------------*------><- *-data-name-1-*
Routine-name is the name of the graphics routine you want to use.
Data-name-1 specifies the parameters necessary to use certain graphics routines. The number of parameters that you must specify varies, depending on which routines you select. When you select a graphics routine, make sure each parameter is the correct size and data type as required by that routine.
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