VVGETR - Gets the current value of a Vectors parameter of type REAL.

       To use VVGETR or c_vvgetr, load the NCAR Graphics libraries ncarg, ncarg_gks, and ncarg_c, preferably  in
       that order.

       The C-binding argument descriptions are the same as the FORTRAN argument descriptions.

       #include <ncarg/ncargC.h>

       void c_vvgetr(char *cnm, float *rvl)

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

UNIX                                               April 1993                                     VVGETR(3NCARG)

       CNM         (CHARACTER,  input)  is the name of a parameter whose real value is to be retrieved. Only the
                   first three characters of CNM are examined. The three characters may either be entirely upper
                   or entirely lower case; mixed case is not recognized. It is recommended that the rest of  the
                   character string be used to improve the readability of the code. For example, instead of just
                   ´DMX´, use ´DMX - Device Maximum Vector Size´.

       RVL         (REAL,  output)  is  a variable in which the value of the parameter specified by CNM is to be
                   returned.

       Use the ncargex command to see the following relevant examples: ffex02, ffex05, vvex01, vvex02.

       See the vectors man page for a description of all Vectors error messages and/or informational messages.

       VVGETR - Gets the current value of a Vectors parameter of type REAL.

       Online:  vectors, vectors_params, vvectr, vvgetc, vvgeti, vvinit, vvrset, vvsetc, vvseti, vvsetr, vvudmv,
       vvumxy, ncarg_cbind.

       Hardcopy: NCAR Graphics Fundamentals, UNIX Version

       CALL VVGETR (CNM,RVL)

       This routine allows you to retrieve the current value of Vectors parameters of type REAL.  For a complete
       list of parameters available in this utility, see the vectors_params man page.