How to export function through exe?

Question

0.00/5 (No votes)

See more:

VC6

C++

Hi,
I need export the functions in an exe, how to do this? Please help me. Thanks.

Posted 5-May-11 15:39pm

Andrewpeter

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

barneyman · Answer 1 · 2011-05-05T17:55:00

You can't really directly export a function from an exe to another process, I guess it would help to understand what it is you're trying to achieve

If you've got some really cool code you want to re-use somewhere else, pull that code into a DLL and use it from both exes

If you want some form of inter-process communication, you have a number of options, including

1. COM/RPC - but this is a sledgehammer to crack a nut
2. Mailslots/Pipes/Sockets - if you just need to move data between
3. MemoryMapped files - if you want to share memory

take a look at http://msdn.microsoft.com/en-us/library/aa365574(VS.85).aspx[^]

Ajay Vijayvargiya · Answer 2 · 2011-05-05T16:32:00

Solution 2

A bad design if you export a function from an EXE. Well, may I ask who will IMPORT that function - a DLL in same process?

You can export a function using

__declspec(dllexport) int yourfunction();

and import as:

__declspec(dllimport) int yourfunction();

Are you serious you are using VC6 still ??

Posted 5-May-11 16:32pm

Ajay Vijayvargiya

Comments

Sergey Alexandrovich Kryukov 5-May-11 22:49pm

This is correct, my 5. There are cases when this is useful. For example, your process can host some plug-ins if the form of DLLs; so this is the way to pass plug-in API. It works.
--SA

Ajay Vijayvargiya 5-May-11 22:57pm

Well, that simply means the EXE should have .LIB file with it, OR the DLL would load the function dynamically using GetProcAddress. I would prefer a callback function, which would be imported from DLL, and EXE would call that function, passing the address (name) of the function in EXE.