Creating a DLL in C++ for AutoIt

[GrungeRocker]

As said in the Topic, I want to make a DLL with C++ which should be used with AutoIt.

Is there something special I have to mind?

Did someone gain some experience? Anyone got Sourcecode (AutoIt & C++)?

[monoceres]

Yeah I usually compile dll's in C++ and use them in AutoIt. Pretty nice when you need speed or multi-threading

Here's an example:

Fire up your C++ environment and start a new dll project then copy and paste this code and compile:

extern "C" int __declspec(dllexport) TestFunc (int a)
{
    return a*2;
}

You can then call the resulting dll in AutoIt like this:

$call=DllCall("thenameofthedll.dll","int:cdecl","TestFunc","int",5)
MsgBox(0,"5*2 is:",$call[0])

Good luck

[GrungeRocker]

OK one more Question...

I tried to make a simple class in my DLL but it did not work...

How to do this?

And how do you use it in AutoIt then?

Is it possible?

[monoceres]

OK one more Question...

I tried to make a simple class in my DLL but it did not work...

How to do this?

And how do you use it in AutoIt then?

Is it possible?

You cannot interact with classes in autoit* so you need to abstract that away in your exported functions. If you need to pass classes between calls use pointers instead.

* It's possible to call methods and such but it's not very nice and clean and is more job than just rethinking your logic in the dll.

Edited January 8, 2009 by monoceres

[GrungeRocker]

OK thx

Good to know =)