How Call in Autoit function Library (dll) C#

[kmeleon]

Hello,

I have project Class Library in VS C# and I want call this function "Add"

but I still have error 3 - "function" not found in the DLL file.

How fix it ?

>>Code in VS C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ClassLibrary1
{
    public class Class1
    {

        public int Add(int p1, int p2)
        {
            return p1 + p2;
        }
        public int Subtract(int p1, int p2)
        {
            return p1 - p2;
        }
    }
}

>>Code in AutoIt

$h = ""&@ScriptDir &"\ClassLibrary1.dll"
$Add = DllCall(""&$h, "int", "Add", "int", 3, "int", 4)

    If @error <> 0 Then
        MsgBox(0,""&$Add,"error: "&@error)
    Else
        MsgBox(0,"",""&$Add)
    EndIf

[monoscout999]

Learn first from the AutoIt Help.

[Mat]

.NET dlls are special. They are nothing like those designed to work with DllCall.

[kmeleon]

This is how best to choose a project in VS to create a library that will work with AutoIt?

[Mat]

It needs to be a Win32 Dll, so the way I get there (almost certainly not the way you get there) is New Project -> Other Langauges -> Visual C++ -> Win32 -> Win32 Project, and then when the dialog opens you need to tick the radio button that says Dll.

[zfisherdrums]

This is how best to choose a project in VS to create a library that will work with AutoIt?

If you want to keep it in C#, you should check out the Unmanaged Exports project. It is a project template that allows native consumption of managed DLLs without the typical compilation/deployment overhead. You decorate your methods with a specific attribute and...voila!

Have I used it before? No. Just Google-foo. May be worth checking out.

Best,

Zach...

Edited July 21, 2011 by zfisherdrums