Vista - Question on Reflection

I have a C#.NET project that passes two parameters to an external S-
PLUS function that outputs a value. In my C#.NET project, I'll also
need to get the output value from S-PLUS. Therefore, this is an
integration program from C#.NET and S-PLUS.

I have C#.NET code below to pass two values for the parameters, "a"
and "b", to an S-PLUS function, "myFunction". Then the output value
from S-PLUS should be returned to my C#.NET code.

I have an issue with returned value, result. The correct "result"
should be 112. However, in my debugger, it's:

result {Dimensions:[1..2,1..2]}
[1, 1] 112

I think I should use GetType().InvokeMember to parse result in order
to get the value I need, 112. Anyone can advise me on how? Thanks!

FYI, my code is below:


Type mySFunction = Type.GetTypeFromProgID("S-
PLUS.myFunction");

object splusObject =
Activator.CreateInstance(mySFunction);

object[] oArgs = new object[1];
oArgs[0] = 112;
splusObject.GetType().InvokeMember("a",
System.Reflection.BindingFlags.SetProperty, null, splusObject, oArgs);

oArgs = new object[1];
oArgs[0] = 8;
splusObject.GetType().InvokeMember("b",
System.Reflection.BindingFlags.SetProperty, null, splusObject, oArgs);

splusObject.GetType().InvokeMember("Run",
System.Reflection.BindingFlags.InvokeMethod, null, splusObject, null);
object result =
splusObject.GetType().InvokeMember("ReturnValue",
System.Reflection.BindingFlags.GetProperty, null, splusObject, null);