Labelbar - Creates a labeled, filled, rectangular bar to serve as a key for a filled plot.

       To use Labelbar routines, load the NCAR Graphics libraries ncarg, ncarg_gks, and ncarg_c, preferably in
       that order.

       c_lblbar
       c_lbgeti
       c_lbgetr
       c_lbfill
       c_lbseti
       c_lbsetr

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

UNIX                                               March 1993                                   Labelbar(3NCARG)

       Various error conditions can occur in Labelbar.  Each of these results in a call to the error-handling
       routine SETER, with a final argument indicating that the error is recoverable; by default, an error
       message is printed and execution is terminated, but, if you turn on error recovery (as described in the
       "man" page for "error_handling"), you can get control back.

       The error messages are as follows; all should be more or less self-explanatory.

            LBGETI - UNCLEARED PRIOR ERROR
            LBGETR - PARAMETER NAME NOT KNOWN - X
            LBGETR - PARAMETER NAME TOO SHORT - X
            LBGETR - UNCLEARED PRIOR ERROR
            LBLBAR - ERROR EXIT FROM GQFACI
            LBLBAR - ERROR EXIT FROM GQLWSC
            LBLBAR - ERROR EXIT FROM GQPLCI
            LBLBAR - ERROR EXIT FROM GQTXCI
            LBLBAR - UNCLEARED PRIOR ERROR
            LBSETI - UNCLEARED PRIOR ERROR
            LBSETR - PARAMETER NAME NOT KNOWN - X
            LBSETR - PARAMETER NAME TOO SHORT - X
            LBSETR - UNCLEARED PRIOR ERROR

       All of these should be more or less self-explanatory. Those that complain of an error exit from a GKS
       routine probably imply that GKS has somehow been put in the wrong state.  Others will result from using
       an incorrect internal-parameter name in a call to one of the parameter-access routines.  (The "X" will be
       replaced by the offending name.)

       Labelbar - Creates a labeled, filled, rectangular bar to serve as a key for a filled plot.

       Online: labelbar_params, lbfill, lbgeti, lbgetr, lblbar, lbseti, lbsetr, ncarg_cbind

       Hardcopy: NCAR Graphics Fundamentals, UNIX Version

       LBLBAR - Produces a complete label bar.

       LBGETI - Retrieves current integer parameter values.

       LBGETR - Retrieves current real parameter values.

       LBSETI - Sets integer parameter values.

       LBSETR - Sets real parameter values.

       LBFILL - Fills label bars.