Autoit v3 script has stopped working (crash)

[E1M1]

My autoit crashed with out any errors.

Here's my autoit code

$call = DllCall("formulas.dll","int","sum","int",3)
MsgBox(0,"",$call[0])

and here's my C made DLL

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

#define DLL extern "C" __declspec(dllexport)

DLL int sum(int a)

Any idea why autoit crashes with it?
{
    return a;
}

[AdmiralAlkex]

First thing that sticks out is that you set the function to use cdecl but use stdcall from AutoIt (see DllCall() in helpfile).

Change to:

$call = DllCall("formulas.dll","int:cdecl","sum","int",3)

And it works.

Edit:

Also these three lines look unnecessary:

#include "stdafx.h"
#include "windows.h"
Any idea why autoit crashes with it?

Edited July 4, 2010 by AdmiralAlkex