How to Convert a UnManaged class to a managed one?Or the oposite?

The project process is:

C# -->C++/CLI -->C++'s DLL(Exporting some classes)

There is a parameter of Class Type in the DLL.

How to use it in C#

What will be done in C++/CLI

Thank U!

Visual C++6

Does it just contain data members, or does it also contain code If just data members, then you can look at www.pinvoke.net for examples on how to marshall structs between C# and C++.

Do you have more information for me

Are there relative functions or Samples

ps:

I don't use [DllImport],

I use C++/CLI doing the Convertion.

But I don't know how to convert a class from managed one to unmanaged one.

So please help me.

Thank you !

A good starting point would be to answer my question. Is this a struct with data members, or a class with methods What are you trying to get between managed and unmanaged code

oh.

Both a struct with data members, and a class with methods will be uesd.

For example:

there is a function in DLL:

ReturnData GetData(InputData data)

{..... }

the definition of ReturnData is:

struct ReturnData

{

char* buf;

unsigned long length;

//and so on.

};

struct InputData

{

int left;

int right;

//and so on.

};

In C++/CLI. the InputData and ReturnData will be recognized,

But C# will not.

In addition:

There are some Callbacks in my DLL.

So a class with methods will be uesd.

Thank U!

I'm not sure how it's done with callbacks, but with structs, you can just define a struct in C# and make sure it's the same size ( the char * makes this harder, can you move it to the end of your structure ).