evuser.h

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/*********************************************************************
 *<
    FILE: evuser.h

    DESCRIPTION: Event user functionality

    CREATED BY: Tom Hudson

    HISTORY: Created 16 June 1995

 *> Copyright (c) 1995, All Rights Reserved.
 **********************************************************************/

/**********************************************************************
How to use:

This is a set of classes which form a generic notification system.  To
use:

* Create an EventUser object.

* Register the EventUser object with the appropriate router.

* The EventRouter will call your EventUser's Notify() method when
the event occurs.

* When you're done with the EventUser object, call the EventRouter's
UnRegister() method.  This will delete the EventUser from the router's
notification system.

* If your code is part of a window proc, call the router's Register
and UnRegister methods when the window receives WM_ACTIVATE messages.
This will properly uncouple the notification system when the window is
deactivated.

**********************************************************************/

#pragma once
#include "maxheap.h"

class EventUser: public MaxHeapOperators {
    public:
        virtual void Notify()=0;
    };