accessing C dll containing enum and struct from C# program

Question

I am having a C DLL which contains enum and struct. If I want to access an enum.struct of DLL from C# program Do I need to redefine them in C# program?

Vulpes · Answer

Well first of all you can only access exported functions from a C dll using .NET's 'platform invoke' mechanism. You can't access enums or structs directly. This means of course that you need to export a function which exposes the enum or struct (or a pointer thereto) and which C# code can then call. It also means that you will need to redefine the enum or struct in your C# code to accommodate the values returned or exposed by the function.