Assign a C++ function to a global lua variable

Hi folks,

I want to overwrite the __newindex method for a certain type of class from
the C++ side (to prevent creation of new properties without me noticing it,
it prevents me from mistyping variables).

Here is as far as  I go:
bool
CLuaVM::setSpecialNewIndex(const char* class_name){

    luabind::object obj = get_class_names( getVM() );
    luabind::object mt = getmetatable(obj[class_name]);

    mt["__newindex"] = specialNewIndex; // specialNewIndex should be the
function called when __newindex is called from lua for that class
}

It's late here so maybe that's why I miss something.

Matt

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