/// <summary>
 /// </summary>
 /// <param name="info"></param>
 /// <param name="context"></param>
 protected DdeException(SerializationInfo info, StreamingContext context) : base(info, context)
 {
     _DdemlObject = (DdemlException)info.GetValue("NLib.Dde.DdeException.DdemlObject", typeof(DdemlException));
 }
 internal DdeException(DdemlException exception) : base(exception.Message, exception)
 { 
     _DdemlObject = exception;
 }