Function:     GgiSetFormat

Purpose:      Modify a Ggi valuator element's output format.

Category:     USER-INTERFACE

File:         ggi.src

Author:       J.P. Terlouw

Use:
              #include "ggi.h"
              ident element, result;
              char  *format;

              result = GgiSetFormat(element, format);

                 element  -  the element to be operated upon.
                 format   -  the new format.

Description:  This function operates on all valuator element types,
              currently GgiGauge and GgiDial. It modifies the format
              used to write the valuator's value to the associated keyword.
              When a valuator is created, its format is set to "%f".

Updates:      Jan 25, 1999: JPT, Document created.