/// <summary>
/// Attaches an event handler to 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 AttachEventHandler(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)
{
_ComEventProvider = new ComEventProvider(_COMObject, _InterceptType, this);
}
_ComEventProvider.AddEventHandler(eventName, handler);
}
}
/// <summary>
/// Release the COM reference
/// </summary>
/// <param name="disposing">
/// <see langword="true"/> if this was called from the
/// <see cref="IDisposable"/> interface.
/// </param>
private void Dispose(bool disposing)
{
if (disposing)
{
if (null != this._ComEventProvider)
{
this._ComEventProvider.Dispose();
this._ComEventProvider = null;
}
}
if (null != this._COMObject)
{
if (Marshal.IsComObject(this._COMObject))
{
while (Marshal.ReleaseComObject(this._COMObject) > 0)
{
;
}
}
this._COMObject = null;
}
}
