Re: Copying a lua function to a c++ function

[Sergio Garces <sgarces@...>]

Off the top of my head, here's how I'd try to do it:

Have the OnClick function in your Button class call some function 
object, that must be passed as a parameter and stored previously.

Then, when you create the button in Lua, you create an instance of that 
function object (or a subclass) that contains a reference to the Lua 
function (maybe using the registry). You store the function object 
together with the instance of the Button and call it when the OnClick 
event arrives.

There are no unwanted dependences because the Button class only knows 
about the interface that the function object must implement. The actual 
implementation (that does depends on Lua) is hidden in the creation of 
the function object, that happens in a function called from Lua.

Sergio.