union ucallback
{
    void* ptr;
};

class ICallBack
{
    public:
        virtual void Call(ucallback param) = 0;
};

template <class T, void (T::*Method)(ucallback)>
class CPP_CallBack : public ICallBack
{
    public:
        CPP_CallBack(T& owner) : m_owner(owner) {}
        void Call(ucallback param) { m_owner.*Method(param); }
    private:
        CPP_CallBack();
        T& m_owner;
};

class C_CallBack : public ICallBack
{
    typedef void (*Method)(ucallback);
    public:
        C_CallBack(Method method) : m_method(method) {}
        void Call(ucallback param) { m_method(param); }
    private:
        C_CallBack();
        Method m_method;
};