Programming Example CALLP U@OPENVERTEX IF E@VERRORSTS = 'Y' EVAL VTXQNT@ERROR = E@VERRORMSG EVAL E@ERRVAR1 = VTXQNT@ERROR1 EVAL E@ERRVAR2 = VTXQNT@ERROR2 EVAL E@ERRORNBR = 301 EVAL E@ERRORCAT = 'TXQNT' RETURN ENDIF