I can't work with XmlRpcValue string

[Anonymous]

Help me! As I can transform XmlRpcValue of params[0] to a kind of string (char *str) for performance of operation with a database
    while(!recordset.IsEOF()) // Do until EOF
    {
        recordset.GetFieldValue(str,var);
        Client = (LPCSTR)var.pbstrVal;
    }
I can not use expression:
        recordset.GetFieldValue(params[0],var);

At the moment of performance of the program I have  "type error"!

[Anonymous]

I believe all you would have to do is cast the params[0] to a string in your expression.

recordset.GetFieldValue((char*)params[0],var);

The '=' operator does this casting for you, which is why you can assign it to str with no problem.

Try that and see if it will work.

[Anonymous]

Thank, Melissa, for your answer. But in this case I receive a error of the C-compiler:
"error C2440: 'type cast' : cannot convert from 'class XmlRpc::XmlRpcValue' to 'char *'
        No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called"
Best regards!
Sergej Dunaev