Is it possible to create a variable from native C++ class in C#?

Question

There are two separate project which are trying to communicate like this :
I have following native class in C++ CLI

public class Data{
    public:
    int x;
}

By importing I mean that have added reference to C++ CLI project in my C# project.
On other side I'm importing this C++ CLI project into my C# project and in C# I want to do :

Data k = new Data() //It's ok till here
int b = k.x; //The field x is not visible here !

Is there any way to force C# or C++ CLI to share the field and methods ?
EDIT: Also C# assume the class data as a struct !

I'm not sure what you mean by "importing into your C# project". You can't have C# and C++ CLI in _one project_. Do you mean you're referencing the CLI _assembly_ from your C# project within _one solution_? — D Stanley, Mar 11 '13 at 19:00

score 1 · Answer 1 · answered Mar 11 '13 at 19:06

1

I would imagine you would need to make it a ref class.

public ref class Data{
    public:
    int x;
}

C# can't construct Data in the way you have it now. It's not on the managed heap. ref will make it show up on the managed heap. If you want Data to remain unmanaged, you will have to write a wrapper.

answered Mar 11 '13 at 19:06

Daniel A. White

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Yes I could do that, but as you see it's a native class. Which is also bold in my answer. I can't use managed class there. – Mohsen Sarkar Mar 11 '13 at 19:07
Can you shed some light how to write the wrapper ? – Mohsen Sarkar Mar 11 '13 at 19:08
@Mahdi then i'm afraid you can't just interop like that. – Daniel A. White Mar 11 '13 at 19:08
I'm sure there should be a way to achieve this because the class Data is visible to my C# project. – Mohsen Sarkar Mar 11 '13 at 19:09
http://stackoverflow.com/questions/2691325/c-cli-mixed-mode-dll-creation/2691448#2691448 – Daniel A. White Mar 11 '13 at 19:10

Is it possible to create a variable from native C++ class in C#?

1 Answers1