LuaBridge callbacks (passing lua functions to c++)

Question

How do you pass functions from LUA to C++ using Luabridge(1.0.2)

local Callback=function()
    print("Inside Callback function!");
end

And then pass that callback to c++:

self.Background:On("Click",Callback)

the "Click" is const std::string&, but how do you define Callback as a function? I've tried a few approaches (void*,std::function) but none of these work correctly.

Answer 1

Figured it out! If you are trying to pass functions, LuaBridge 2.0 (in development branch) solves this by introducing LuaRef.

Your function would look like this:

void DisplayObject::On( const std::string& Param1,LuaRef Param2 );

then just call the function like so:

Param2();

https://github.com/vinniefalco/LuaBridge/tree/develop