/// <summary>
/// Adds a delegate to the invocation list of events originating from the COM object.
/// </summary>
/// <param name="rcw">COM object firing the events the caller would like to respond to</param>
/// <param name="iid">identifier of the source interface used by COM object to fire events</param>
/// <param name="dispid">dispatch identifier of the method on the source interface</param>
/// <param name="d">delegate to invoke when specified COM event is fired</param>
public static void Combine(object rcw, Guid iid, int dispid, Delegate d)
{
lock (rcw)
{
ComEventsInfo eventsInfo = ComEventsInfo.FromObject(rcw);
ComEventsSink sink = eventsInfo.FindSink(ref iid) ?? eventsInfo.AddSink(ref iid);
ComEventsMethod method = sink.FindMethod(dispid) ?? sink.AddMethod(dispid);
method.AddDelegate(d);
}
}