The following program code demonstrates a couple of different uses of the Value property. Remember that each Param[x] element is really a TParamRecord-type component.
procedure TForm1.Button1Click(Sender: TObject);
begin
with RPCBroker1 do begin
RemoteProcedure := 'SET NICK NAME';
Param[0].Value := 'DUZ'; {A variable reference}
Param[0].Ptype := reference;
Param[1].Value := edtNickName.Text; {A string}
Param[1].Ptype := literal;
Call;
end;
end;