A call to PInvoke function has unbalanced the stack when including a C DLL into C#

Question

I have written a C DLL and some C# code to test including this DLL and executing functions from it. I am not too familiar with this process, and am receiving a PInvokeStackI

Answer 1

In C++ a long is 32 bit. In C# it's 64 bit. Use int in your C# declaration.

You could also try adding __stdcall to the C++ function. See: What is __stdcall?