Function:     wkeyf

Purpose:      wkey, using variable arguments

Category:     USER-INTERFACE

Author:       J.P. Terlouw

Use:          void wkeyf(
                          char *fmt,  IN : fmt as in printf
                          ...         IN : variable arguments as in printf
                        )

Description:
              The declaration of this function is in "userfio.h",
              where similar functions for statusf, anyoutf, errorf and userfxxx
              are declared too.
              This routine is NOT callable in FORTRAN.
              
Example:
              wkeyf("FREQUENCY=%f BEAM=%f %f", freq, major, minor);
                   //  This call sends two keyword-value pairs to Hermes.

Related doc.: wkey.dc2

Updates:      Apr 21, 1998: JPT, Document created.