private void SelectRanges(object sender, MatchesEventArgs e)
        {
            Contract.Requires(e.Matches.All(m => (0 <= m.Range.Start && m.Range.End <= current.Document.Content.Length)));

            Logger.AcroLog.Info("SelectRanges: " + e.Matches);

            try
            {
                current.SelectRanges(e.Matches);
            }
            catch (Exception err)
            {
                Logger.AcroLog.Error(err);
                sidebar.InvalidateRanges(e.CheckId, e.Matches);
            }
        }
 public void ReceiveMatches(object source, MatchesEventArgs matchesEventArgs)
 {
     Console.WriteLine(matchesEventArgs.Matches.Count);
 }