void Unregister(IPlayCapCallback callback)
{
if (Callbacks.Contains(callback))
{
Callbacks.Remove(callback);
}
}
public void Register(IPlayCapCallback callback)
{
if (!Callbacks.Contains(callback))
{
Callbacks.Add(callback);
//check to close
ICommunicationObject obj = callback as ICommunicationObject;
obj.Closed += new EventHandler(obj_Closed);
}
}
