NDF_HAPPN( APPN, STATUS )
-- Declare a new application name for NDF history recording
NDF_HCRE( INDF, STATUS )
-- Ensure that a history component exists for an NDF
NDF_HDEF( INDF, APPN, STATUS )
-- Write default history information to an NDF
NDF_HECHO( NLINES, TEXT, STATUS )
-- Write out lines of history text
NDF_HEND( STATUS )
-- End NDF history recording for the current application
NDF_HFIND( INDF, YMDHM, SEC, EQ, IREC, STATUS )
-- Find an NDF history record by date and time
NDF_HINFO( INDF, ITEM, IREC, VALUE, STATUS )
-- Obtain information about an NDF's history component
NDF_HNREC( INDF, NREC, STATUS )
-- Determine the number of NDF history records present
NDF_HOUT( INDF, IREC, ROUTIN, STATUS )
-- Display text from an NDF history record
NDF_HPURG( INDF, IREC1, IREC2, STATUS )
-- Delete a range of records from an NDF history component
NDF_HPUT( HMODE, APPN, REPL, NLINES, TEXT, TRANS, WRAP, RJUST,
INDF, STATUS )
-- Write history information to an NDF
NDF_HSMOD( HMODE, INDF, STATUS )
-- Set the history update mode for an NDF