/// <summary>
/// Removes an event handler from the COM object.
/// </summary>
/// <param name="eventName">
/// The name of the event.
/// </param>
/// <param name="handler">
/// The event handler delegate.
/// </param>
/// <exception cref="ArgumentNullException">
/// <para><paramref name="eventName"/> is <see langword="null"/></para>
/// <para>-or-</para>
/// <para><paramref name="handler"/> is <see langword="null"/></para>
/// </exception>
private void RemoveEventHandler(string eventName, Delegate handler)
{
if (null == eventName || 0 == eventName.Length) throw new ArgumentNullException("eventName");
if (null == handler) throw new ArgumentNullException("handler");
lock(this)
{
if (null == _ComEventProvider) return;
_ComEventProvider.RemoveEventHandler(eventName, handler);
}
}
