This function writes (appends) full records to a level. The data in each record must be packed. Refer to the section on Vdatas in the HDF documentation. The input data buffer must be sufficient to fill the number of records designated.
            Examples
            In this example, we write 5 records to the first level in the point referred to by the point id, pointID1:
            status = EOS_PT_WRITELEVEL(pointID1, 0, 5, datbuf)
            Syntax
            Result = EOS_PT_WRITELEVEL(pointID, level, nrec, data)
            Return Value
            Returns SUCCEED (0) if successful and FAIL (–1) otherwise.
            Arguments
            pointID
            Point id (long) returned by EOS_PT_CREATE or EOS_PT_ATTACH.
            level 
            Level to write (0-based long).
            nrec
            Number of records (long) to write.
            data
            Values to be written to the field. Data values are not converted to the internal HDF type automatically. Use HDF_PACKDATA if conversion is necessary or the data fields specify multiple types. 
            Version History