C# P\Invoke DLL no entry point into C++?

Question

I have a C++ Dll \"TheFoo.dll\" with a method \"Foo()\"

I have access to other C++ code that uses this method by simply calling:

Foo();

Answer 1

You should provide more information on your C++. Try using extern "C" __declspec(dllexport) instead. C++ exports with strange names so using extern "C" avoids that.