/// <summary>
/// Call to stop receiving DeviceChanged event notifications.
/// </summary>
/// <param name="watcher"></param>
public void UnRegisterForDeviceChangeNotification(DeviceChangeWatcherArgs watcher)
{
if (watcher == null)
{
throw new ArgumentNullException("watcher");
}
lock (_TheLock)
{
_DeviceChangeCallbackList.Remove(watcher);
}
}
/// <summary>
/// Allows users of DeviceManager to stipulate which device change notifications will get sent. Users that
/// subscribe directly to the DeviceChanged event will get all notifications identified by NotifyFilters.Any.
/// Call UnRegisterForDeviceChangeNotification() to stop receiving DeviceChanged event notifications.
/// </summary>
/// <param name="watcher"></param>
public void RegisterForDeviceChangeNotification(DeviceChangeWatcherArgs watcher)
{
if (watcher == null)
{
throw new ArgumentNullException("watcher");
}
lock (_TheLock)
{
if (!_DeviceChangeCallbackList.Contains(watcher))
{
_DeviceChangeCallbackList.Add(watcher);
}
}
}