CODEWITHSUNDEEP
c#.netluaaluminumlua
David Jiménez Martínez
David Jiménez Martínez

Reputation: 3111

How to call Lua Functions with AluminumLua in C#?

I'm just learning about Lua and trying to integrate it with C# and mono (on Linux). After some looking around, I found AluminumLua as a wrapper to do so.

I've successfully being able to call from lua to C#, but I can't see the way to call from C# to lua:

lua (test.lua):

HelloWorld()

function print_test()
    print("hi")
    return 1
end

C#

var context = new LuaContext ();
context.AddBasicLibrary ();
context.AddIoLibrary ();

context.SetGlobal ("HelloWorld", LuaObject.FromDelegate(new Action(HelloWorld)));

var parser = new LuaParser (context, "test.lua");
parser.Parse ();

...

public static void HelloWorld() {
     Console.Write("HelloWorld");
}

That's cool, but... How can I call the function "print_test", get its output result from C#?

Upvotes: 1

Views: 318

Answers (1)

greatwolf
greatwolf

Reputation: 20838

From looking at the source, LuaContext has a Get method which returns a LuaObject. After you have a reference to that LuaObject you can try to turn it into a LuaFunction using AsFunction and IsFunction.

Something along the lines of this should work:

// ...
var print_test = context.Get("print_test");
if (print_test.IsFunction)
{
  print_test.AsFunction()(null);
}
else
{
  Console.Write("print_test not a lua function!");
}
// ...

Upvotes: 1

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