In the course of finding a way to interoperate between C# and C++ I found this article that explains about P/Invoke.

And I read a lot of articles claiming that C++/CLI is not exact C++ and requires some effort to modify from original C++ code.

I want to ask what would be the optimal way when I have some C++ objects (code/data) that I want to use from C# objects.

  • It looks like that in order to use P/Invoke, I should provide C style API. Is it true? I mean, is there a way to export C++ object to C# like SWIG with P/Invoke? Or, do I have to use SWIG for this purpose?
  • How hard is it to change C++ to C++/CLI? Is it worth trying compared to rewrite the C++ to C#? The C++ is well designed, so implementing it to C# is not great deal.
  • (Off the topic question) Is there the other way round? I mean, if I want to use C# code from C++, is there any way to do so?
c# c++ c++-cli pinvoke interop
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