Exporting functions from a C# class library

Question

How would I export functions defined in a C# class library, while enabling them to be imported to and called from an unmanaged C++ application/DLL ?

Answer 1

Strictly speaking, you can't just export functions as you would in a classic .dll, as .NET .dll's aren't really .dll's at all. Your only three options are:

1. Use managed C++
2. Expose your C# classes as COM objects and consume them from your C++ code
3. Host the .NET runtime in your C++ project and interact with your C# classes through that.

Answer 2

Your C++ Apllication would have to start by hosting the CLR. There is nothing special required from the .NET DLL.