Question

I have following method in my Borland C++ code,

static bool UploadBitstream(void)
{
   //Some code Implementation
}

And I’m trying to convert it to DLL and access it in C#.

What are the steps I need to follow to Convert the code DLL
and then use it in C# ??

Answer 1

First, you have to make sure that the methods are defined extern. Then you need to declare the method stdcall or pascal calling convention, and mark them dllexport. See code listing below (this is ancient memory for me, so pardon if I am a bit off on modern Borland C++ compilers).

// code.h
extern "C" {

#define FUNCTION __declspec(dllexport)

FUNCTION int __stdcall   SomeFunction(int Value);    

In the main

#include "code.h"

FUNCTION int __stdcall SomeFunction(int timesThree)
{
    return timesThree * 3;
}