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Observer.cs
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Observer.cs
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/******************************************************************************
* *
* PROJECT : Eos Digital camera Software Development Kit EDSDK *
* *
* Description: This is the Sample code to show the usage of EDSDK. *
* *
* *
*******************************************************************************
* *
* Written and developed by Canon Inc. *
* Copyright Canon Inc. 2018 All Rights Reserved *
* *
*******************************************************************************/
using System;
using System.Collections.Generic;
namespace CameraControl
{
public interface IObserver
{
void Update(Observable observable, CameraEvent e);
}
public abstract class Observable
{
private List<IObserver> observers = new List<IObserver>();
public void Add(ref IObserver observer)
{
observers.Add(observer);
}
public void Remove(ref IObserver observer)
{
observers.Remove(observer);
}
public void NotifyObservers(CameraEvent e)
{
for (var i = 0; i < observers.Count; i++)
{
observers[i].Update(this, e);
}
}
}
}