using System.IO;
public class Program {
   public static void Main() {
      FileSystemWatcher watcher = new FileSystemWatcher();
      watcher.Path = Directory.GetCurrentDirectory();

      watcher.NotifyFilter = NotifyFilters.LastAccess |
                             NotifyFilters.DirectoryName;

      watcher.Filter = "*.txt";
      watcher.IncludeSubdirectories = true;
      watcher.Changed += new FileSystemEventHandler( OnChange );
      watcher.EnableRaisingEvents = true;

      System.Console.WriteLine("Press \'q\' to stop the program...");
      while (System.Console.Read() != 'q' ) ;
   }

   public static void OnChange( object source, FileSystemEventArgs e ) {
      System.Console.WriteLine( "File: " + e.FullPath +
                                " Change Type:" + e.ChangeType );
   }
}