.exe to .dll?

Hello,

I'm fairly new to C++, still learning the ropes. I am using Visual Studio 2008 and I have a Visual C++ application that right now builds as a .exe and I'd like to see if I can have it build as a .dll. The reason being, I would like to access several functions within this application from a C# application and I read that this was a possible solution. I'd like to avoid re-writing them in C#.

Thanks in advance.

If you wish to link a exe to a dll you would have to include the .dll its .lib and header;

example of the dll header:

Code:

---

#ifndef DLLHEADER_H_INCLUDED
#define DLLHEADER1_H_INCLUDED

#ifdef DLL_EXPORT
# define EXPORT __declspec (dllexport)
#else
# define EXPORT
#endif

extern EXPORT void Dll1 ();




#endif

---

Then the dll.cpp

Code:

---

#include "stdafx.h"
#include <iostream>
#define DLL_EXPORT//* define the export and import fuction

#include "Dll.h"

EXPORT void Dll1 () {

//*What ever your code is
       
}

---

After you have built your dll. place the .lib .dll and its header in the .exe source folder then add the header like so to your .exe:

Code:

---

#include "Dll.h"

---

Then for the exe you type in Dll1();
like so:

Code:

---

#include "stdafx.h"
#include "windows.h"
#include "Dll.h"




using namespace std;



int _tmain()
{

               
                        Dll1 ();

return 0;
}

---

this will then work with your dll

If you do not wish to rewrite the code out again (which is lazy as it can be good practice) you can get a csharp to c++ converter vise versa

and exe and a dll are different Project types. You'll need to create a DLL project and copy the relevant code into the DLL.

Quote:

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Originally Posted by gaar321

If you do not wish to rewrite the code out again (which is lazy as it can be good practice) you can get a csharp to c++ converter vise versa

---

Are you saying he's lazy for not wanting to rewrite existing code?

I am only encourageing for people to learn carm down

Quote:

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Originally Posted by gaar321

I am only encourageing for people to learn carm down

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That doesn't make any sense.

I was using a sarcastic approach by saying your lazy in other words motivate your self