Programming IBM iSeries API QUSLSPL in C#

Question

Can somebody help me with the complete c# code to call QUSLSPL with SPLF0200 format. I am able to call the program but don't know how to capture/read through the output. I am new to this area. Appreciate your help.

Here is my code.

cwbx.ProgramParameters parameters = new cwbx.ProgramParameters();


        //user space name
        parameters.Append("usrspcnam", cwbrcParameterTypeEnum.cwbrcInout, 20);
        StringConverter stringConverterUsrSpaceNm = new cwbx.StringConverter();
        stringConverterUsrSpaceNm.Length = 20;
        parameters["usrspcnam"].Value = stringConverterUsrSpaceNm.ToBytes("HRAHMAN   QGPL      ");

        //Format
        parameters.Append("frmname", cwbrcParameterTypeEnum.cwbrcInout, 8);
        StringConverter stringConverterFrmname = new cwbx.StringConverter();
        stringConverterFrmname.Length = 8;
        parameters["frmname"].Value = stringConverterFrmname.ToBytes("SPLF0200");

        //User Name
        parameters.Append("usrnam", cwbrcParameterTypeEnum.cwbrcInout, 10);
        StringConverter stringConverterUsrnam = new cwbx.StringConverter();
        stringConverterUsrnam.Length = 10;
        //parameters["usrnam"].Value = stringConverterUsrnam.ToBytes("*CURRENT");
        parameters["usrnam"].Value = stringConverterUsrnam.ToBytes("          ");

        //qualified output queue
        parameters.Append("cola", cwbrcParameterTypeEnum.cwbrcInout, 20);
        StringConverter stringConverterCola = new cwbx.StringConverter();
        stringConverterCola.Length = 20;
        //parameters["cola"].Value = stringConverterCola.ToBytes("*ALL");
        parameters["cola"].Value = stringConverterCola.ToBytes("                    ");

        //form type
        parameters.Append("frmtyp", cwbrcParameterTypeEnum.cwbrcInout, 10);
        StringConverter stringConverterFrmtyp = new cwbx.StringConverter();
        stringConverterFrmtyp.Length = 10;
        //parameters["frmtyp"].Value = stringConverterFrmtyp.ToBytes("*ALL");
        parameters["frmtyp"].Value = stringConverterFrmtyp.ToBytes("          ");

        //user-specific data
        parameters.Append("usrdta", cwbrcParameterTypeEnum.cwbrcInout, 10);
        StringConverter stringConverterUsrdta = new cwbx.StringConverter();
        stringConverterUsrdta.Length = 10;
        //parameters["usrdta"].Value = stringConverterUsrdta.ToBytes("*ALL");
        parameters["usrdta"].Value = stringConverterUsrdta.ToBytes("          ");

//error
        parameters.Append("error", cwbrcParameterTypeEnum.cwbrcInout, 116);
        Structure sc2 = new Structure();
        sc2.Fields.Append("bytesprov", 4);
        sc2.Fields.Append("bytesavail", 4);
        sc2.Fields.Append("messageid", 7);
        sc2.Fields.Append("err", 1);
        sc2.Fields.Append("messagedta", 100);
        parameters["error"].Value = sc2.Bytes;

        //qualified job name
        parameters.Append("qualifiedjobnm", cwbrcParameterTypeEnum.cwbrcInput, 26);
        StringConverter stringConverterUsrdta1 = new cwbx.StringConverter();
        stringConverterUsrdta1.Length = 26;
        parameters["qualifiedjobnm"].Value = stringConverterUsrdta1.ToBytes("*                         ");

        //keys
        parameters.Append("keys", cwbrcParameterTypeEnum.cwbrcInput, 44); //44 is 11 keys times 4 bytes per key
        LongConverter lc = new cwbx.LongConverter();

        Structure keys = new Structure();
        keys.Fields.Append("Spooledfilename", 4); //char10 201
        keys.Fields["Spooledfilename"].Value = lc.ToBytes(201);
        keys.Fields.Append("Username", 4); //char10 203
        keys.Fields["Username"].Value = lc.ToBytes(203);
        keys.Fields.Append("opqueue", 4); //206
        keys.Fields["opqueue"].Value = lc.ToBytes(206);
        keys.Fields.Append("userdata", 4); //209
        keys.Fields["userdata"].Value = lc.ToBytes(209);
        keys.Fields.Append("status", 4); //210
        keys.Fields["status"].Value = lc.ToBytes(210);
        keys.Fields.Append("totpages", 4); //bin 211
        keys.Fields["totpages"].Value = lc.ToBytes(211);
        keys.Fields.Append("copies", 4); //bin 213
        keys.Fields["copies"].Value = lc.ToBytes(213);
        keys.Fields.Append("openeddate", 4); //216
        keys.Fields["openeddate"].Value = lc.ToBytes(216);
        keys.Fields.Append("opentime", 4); //217
        keys.Fields["opentime"].Value = lc.ToBytes(217);
        keys.Fields.Append("jobid", 4); //218
        keys.Fields["jobid"].Value = lc.ToBytes(218);
        keys.Fields.Append("fileid", 4); //219
        keys.Fields["fileid"].Value = lc.ToBytes(219);
        parameters["keys"].Value = keys.Bytes;

        //number of keys to return
        parameters.Append("numberoffields", cwbrcParameterTypeEnum.cwbrcInput, 4);
        LongConverter LongConverterKeys = new cwbx.LongConverter();
        parameters["numberoffields"].Value = LongConverterKeys.ToBytes(11); //11 keys in total



        program.Invoke(true, ref parameters);

Now what next? Where and how to read output? Appreciate your response.