GAGETR - Retrieves the real value of an internal parameter of Gridall.

       To use GAGETR or c_gagetr, 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_gagetr (char *pnam, float *rval)

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

UNIX                                               March 1993                                     GAGETR(3NCARG)

       PNAM        (an  input  constant  or  variable of type CHARACTER) is a string three or more characters in
                   length, the first three characters of which constitute the name  of  the  internal  parameter
                   whose value is to be retrieved.

       RVAL        (an  output  variable  of  type  REAL)  is the name of a variable into which the value of the
                   internal parameter specified by PNAM is to be retrieved.  If the  internal  parameter  is  of
                   type INTEGER and has the value "i", "REAL(i)" will be returned in RVAL.

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

       GAGETR - Retrieves the real value of an internal parameter of Gridall.

       Online:  gridall,  gridall_params,  gacolr,  gagetc, gageti, gasetc, gaseti, gasetr, grid, gridal, gridl,
       halfax, labmod, perim, periml, tick4, ticks, ncarg_cbind.

       Hardcopy: NCAR Graphics Fundamentals, UNIX Version

       CALL GAGETR (PNAM,RVAL)

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