#include <iostream>

using namespace std;

struct SystemEvent
{
    enum event
    {
        System = 0
    };
};
struct WindowEvent
{
    enum event
    {
        Window = 0
    };
};


template <typename T>
struct Event
{
    unsigned int event;
    T *type;
    Event(unsigned int msg_,T *type_) : event(msg_),type(type_) {}
};



int main()
{
    WindowEvent e;
    SystemEvent f;
    Event<WindowEvent> ev1(5,&e);
    Event<SystemEvent> ev2(5,&f);

    return 0;
}