🚀 go-pugleaf

I just switched from BDE to ADO and the infomration from online 
help is very limited. 

I need to retrive a result set with a raw field from Oracle 
Databse in TADOStoredProc. How shall I specify the parameter for 
the result set? This is my codes:

-------------------------------------------
    ADOStoredProc1->Parameters->Clear();

    ADOStoredProc1->ProcedureName = "BLOBTEST.GETTBBLOB";
    ADOStoredProc1->Parameters->CreateParameter("V_C1", ftInteger, pdInput, 0, NULL);
    ADOStoredProc1->Parameters->CreateParameter("v_DataCursor", ftCursor, pdReturnValue, 0, NULL);

    ADOStoredProc1->Parameters->ParamByName("V_C1")->Value = 23;

    ADOStoredProc1->Open();
-----------------------------------------------------

I assume I was not doing the right thing since I got an error
 when I tried to Open() the stored procedureJ: "Parameter Object 
is improperly defined. Inconsistant or incomplete information is 
provided."

I also tried to have my stored procedure to return an out value
 instead of the result set (assuming there will be only one 
record). But then I had a problem with the raw field type.

-----------------------------

    ADOStoredProc1->Parameters->Clear();
    ADOStoredProc1->ProcedureName = "BLOBTEST.GETTBRAW";
    ADOStoredProc1->Parameters->CreateParameter("V_C1", ftInteger, pdInput, 0, NULL);
    ADOStoredProc1->Parameters->CreateParameter("v_C2", ftOraBlob, pdOutput, 2147483647, NULL);

    ADOStoredProc1->Parameters->ParamByName("V_C1")->Value = 23;

    ADOStoredProc1->ExecProc();
-----------------------------------------------
I got the same error message.

What is the right way to do? Is there any place I can find some sample codes? 

Thanks a lot.

Changsong