GCLKS - closes the GKS package.

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

       #include <ncarg/gks.h>

       void gclose_gks( void );

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

UNIX                                               March 1993                                      GCLKS(3NCARG)

       GCLKS - closes the GKS package.

       Online: gopks, gopwk, gacwk, gdawk, gclwk, gupwk, opngks, clsgks, gclose_gks

       Hardcopy: User's Guide for NCAR GKS-0A Graphics; NCAR Graphics Fundamentals, UNIX Version

       CALL GCLKS

       A call to GCLKS insures that the graphics package is properly terminated.  No graphics calls depending on
       GKS  should  be  made  during  the  time  that  GKS is closed.  If output to a CGM has been the exclusive
       requirement of the graphics job, and the SPPS entry OPNGKS has been used to open  GKS  and  to  open  and
       activate  a  CGM workstation, then CLSGKS can be used to deactivate and close the CGM workstation, and to
       close GKS, making a direct call to GCLKS unnecessary in that case.