How to set up a C++ function so that it can be used by p/invoke?

Question

Hopefully this is a brainlessly easy question, but it shows my lack of expertise with C++. I\'m a C# programmer, and I\'ve done extensive work with P/Invoke in the past wit

Answer 1

You'll want to use extern "C" as well as __declspec(export), like so:

extern "C" _declspec(dllexport)  bool TestFunc()
{
    return true;
}

For full details, see MSDN on Marshalling Types.