Contents of a lua function in c++ function

[sizeoftrickster]

Hi all. Please help to implement such a thing. I need the content of one function to be passed to a hook.

function Handler() {
    print("!") -- For Example.
}

void GameloopHook() {
    // The same code that is specified in the lua function is passed here. Handler()
}

[MJCollett]

I think that writing an actual C-style function that did the job would require you to have the Lua state available as a global variable:

void GameloopHook() {
   sol::function(lua["Handler"])();
}

That's not nice. But you can make a function wrapper that takes care of it by just saying

sol::function gameloopHook{lua["Handler"]};

which only requires the Lua state to be available at the point of definition. The sol::function isn't a function pointer, but can be passed in anywhere a std::function<void()> is expected.
Alternatively, you can wrap the call in a lambda that captures the Lua state.