Creating wrapper on c/c++ code to access it as assembly in c# code

[zacksoniar]

Hello Friends,

I have one vc++ 6.0 library which i want to access in C# project.

As it is object oriented library(class & structures), DllImport is NOT an option.

So what I did so far is :

1. Opened vc++ code with VS2010.
2. Made it CLR(/clr) enabled.
3. Project Compiled successfully.

4. Now I started creating CLR friendly wrapper for pure
c++ code which I managed to do.

My problem is there is one c++ function with signature

void GetCoefficients(double &k1, double &k2);

For this, I created wrapper with same signature but when
I access it in c#, I am not able to pass values to it.

"ref" keyword is not working.

So my questions are...
1. What should be clr aware wrapper's signature for this function?

2. How should I call it from c#?

your help is really appreciated.

Thanks,
Zack