GDDM V3R2 Base Application Programming Reference
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Segment characteristics

GDDM V3R2 Base Application Programming Reference
SC33-0868-02



The Segment Characteristics order adds more attributes to a segment. It is valid only within the prolog of a segment.

The general format is as follows:


 Fld
 len
 Content
                  
 Meaning
                                               
 1  X'04'  Segment Characteristics order code
 1  LEN  Length of following data
 1  CHID  Identifier code for characteristics
 LEN
 -1
 DATA
                  
 Data
                                               


   Notes:

1. GDDM sets X'80' in the CHID field. All other values are reserved. Values above X'80' are allocated to applications other than GDDM.
2. GDDM preserves all Segment Characteristics orders with values of other than X'80' in the CHID field. The use of the Segment Characteristics order with a CHID value of X'80' is defined below.

The order can be used to provide information that corresponds to the GSSORG call, as follows:


 Fld
 len
 Content
                  
 Meaning
                                               
 1  X'04'  Segment Characteristics order code
 1  LEN  Length of following data
 1  X'80'  Identifier for GDDM
 1  X'00'  Reserved
 1  X'04'  Segment origin
 1  LEN-4  Length of coordinate data
 *  x0  x coordinate origin
 *  y0  y coordinate origin


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