How does CallExension work?

[Llano 11]

Hi!

I'm trying to call functions in one of my .dll files i have created from a mission. From what i have read from the documentation, this is what i have done:

I created a .dll file in c#, called "CallCommand.dll". Inside, i wrote a very simple code:

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

namespace CallCommand
{
   public class Class1
   {
       public static string hello()
       {
           return "Hello";
       }

   }
}

I saved it in a folder called "@extension".

Then i create a mission with these lines in the "init.sqf":

_string = "CallCommand" callExtension "hello";
hint format["String: %1", _string];

Saved the mission, launched ArmA 3 with the "@extension" as a mod. Starting the mission... Nothing happens. All i get is a hintbox with "String: ".

So, i'm obviously doing something wrong, forgetting something etc. I new to this extension thing so you know :)

EDIT: oh man, titel is spelled wrong. Obviously i meant "CallExtension".

Edited June 8, 2013 by Llano

[killzone_kid 1331]

I assume you have already been to this page http://community.bistudio.com/wiki/Extensions

just in case you haven't :)

[Llano 11]

I assume you have already been to this page http://community.bistudio.com/wiki/Extensions

just in case you haven't :)

Yes i have, though i can't really figure out how to make this work :S

[killzone_kid 1331]

Well it is all there

The dll is expected to contain an entry point of a form _RVExtension@12, with a following C signature:

void __stdcall RVExtension(char *output, int outputSize, const char *function);

[Llano 11]

Well it is all there

Yeah i saw that. But how do i write that in c#?

Something like this?

public static void RVExtension(char *output, int outputSize, const char *function);

(Btw getting error on "const char *function". Also, do i have to use "__stdcall" in c#?)

I have problem to understand how that works. It says on that page:

RVExtension is the only function called by the game engine.

The engine calls this automatically?

Sory for my newbie questions :)

Too bad they have no C# example.

[killzone_kid 1331]

Can't help you with C#. All I know I downloaded Visual Studio 2010 which makes it very easy as it already has all templates you only need to copy paste RVExtension bit and it is done.

[aeroson 8]

You might find this helpful, the example does exactly what you are trying to do D:

Looks like its using C as bridge between Arma and C#

Edited June 8, 2013 by aeroson

[Llano 11]

You might find this helpful, the example does exactly what you are trying to do D:

Looks like its using C as bridge between Arma and C#

Thank you so much. I'll check that out!

---------- Post added at 14:13 ---------- Previous post was at 13:20 ----------

Can just say that it works now :)

Thank you so much or helping me!