Interoperability between COM client and .NET Server
I am looking into the COM Interoperating Sample from MSDN:
COM Client and .NET Server:
msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide/html/cpconexposingnetframeworkcomponentstocom.asp
The .NET Server defines ILoan interface which is implemented by Loan class in C#.
The function "ComputePayment" defined and implemented as follows:
namespace LoanLib {
public interface ILoan {
...
double ComputeOpeningBalance();
...
};
public class Loan : ILoan {
...
public double ComputePayment() {
Payment = Util.Round(OpeningBalance * (Rate / (1 -
Math.Pow((1 + Rate), - Term))), 2);
return Payment;
}
...
};
}
Here is question:
When this function is called from VC++ 6.0 client, the signature of this function is quite different.
pILoan->ComputePayment(&payment);
The return value is moved to the end of argument list. Can anyone explain
why this is happening? Thanks
