Playing around with C++ events. Very similar to Qt's signal/slot mechanism.

events_in_cpp.cpp

#include <iostream>
#include <stdio.h>

using namespace std;

[event_source(native)]
class Sender
{
public:
  __event void SendEvent(int value);
};

[event_receiver(native)]
class Receiver
{
	string name_;

public:
	Receiver(const string& name) : name_(name) {}

	void OnEventReceived(int value)
	{
		cout << name_.c_str() << " has received " << value << endl;
	}

	void hookEvents(Sender* pSender)
	{
		__hook(&Sender::SendEvent, pSender, &Receiver::OnEventReceived);
	}

	void unhookEvents(Sender* pSender)
	{
		__unhook(&Sender::SendEvent, pSender, &Receiver::OnEventReceived);
	}
};

int main()
{
	Sender sender;
	
	Receiver receiver_1("one");
	receiver_1.hookEvents(&sender);

	Receiver receiver_2("two");
	receiver_2.hookEvents(&sender);

	sender.SendEvent(42);

	receiver_1.unhookEvents(&sender);
	
	sender.SendEvent(43);
	
	return 0;
}