GDSG - deletes a GKS segment

       To use GKS routines, load the NCAR GKS-0A library ncarg_gks.

       #include <ncarg/gks.h>

       void gdel_seg(Gint seg_name);

       Copyright (C) 1987-2009
       University Corporation for Atmospheric Research
       The use of this Software is governed by a License Agreement.

UNIX                                               March 1993                                       GDSG(3NCARG)

       SGNA        (Integer,  Input)  - Specifies the segment identifier for a segment that will be deleted by a
                   call to this function.

       GDSG - deletes a GKS segment

       Online: gevtm, gactm, gclsg, gcrsg, gcsgwk, gqopsg, gqsgus, gssgt., gdel_seg

       Hardcopy: "User's Guide for NCAR GKS-0A Graphics"

       CALL GDSG(SGNA)

       The segment name is removed from the set of names of segments that are currently in use.