This function returns information about the fields in a given level. Typical reasons for failure are an improper point id or level number. 
            Examples
            In this example, we return information about the Desc-Loc (1st) level defined previously:
            nflds = EOS_PT_LEVELINFO(pointID2, 0, fldlist, fldtype, fldorder)
            The last variable is useful only when information on an entire point is requested.
            Syntax
            Result = EOS_PT_LEVELINFO(pointID, level, fieldlist, fldtype, fldorder)
            Return Value
            Returns number of fields if successful and FAIL (–1) otherwise.
            Arguments
            pointID 
            Point id (long) returned by EOS_PT_CREATE or EOS_PT_ATTACH.
            level
            Point level (0-based long).
            fieldlist
            A named variable that will contain field names (string) in level.
            fldtype
            A named variable that will contain the number HDF data type (long) of each field.
            fldorder
            A named variable that will contain the order (long) of each field.
            Keywords
            None
            Version History