GCLWK - closes a GKS workstation

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

       #include <ncarg/gks.h>

       void gclose_ws(Gint ws_id);

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

UNIX                                               March 1993                                      GCLWK(3NCARG)

       WKID        (Input,  Integer) - A number identifying the workstation to be closed.  WKID must be the same
                   as that used in some previous GOPWK call.

       GCLWK - closes a GKS workstation

       Online: gopks, gopwk, gacwk, gdawk, gclks, opngks, clsgks, gclear_ws

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

       CALL GCLWK (WKID)

       Close workstation updates the workstation and removes its identifier from the set of  open  workstations.
       The connection to the workstation is released and the associated connection ID is available for re-use.