Function:     GgiSetRange

Purpose:      Modify the range of a Ggi gauge or dial element (analog valuator).

Category:     USER-INTERFACE

File:         ggi.src

Author:       J.P. Terlouw

Use:          
              #include "ggi.h"
              ident valtor, result;
              float lowval, highval;

              result = GgiSetRange(gauge, lowval, highval);

                 valtor  - the gauge or dial element to be operated upon.
                 lowval  - the value corresponding with the lowest position.
                 highval - the value corresponding with the highest position.
                 result  - receives a copy the argument element.

                 lowval may be larger than highval.

Updates:      Jan 13, 1998: JPT, Document created.
              Jan 14, 1999: JPT, Modified for dial element.