MainApp.MyCallback C# (CSharp) Method

    public double MyCallback(Object obj) {
        Console.WriteLine("AppDomain in MyCallback: " + AppDomain.CurrentDomain.FriendlyName);

        Object result = obj.GetType().InvokeMember("Value", 
            BindingFlags.Instance | BindingFlags.Public | BindingFlags.GetProperty, null,
            obj, null, null, null, null);

        return (double)(int)result;
    }