public void Display(Picture picture, int thenPause)
 {
     Display(picture);
     Thread.Sleep(thenPause.ToMilliseconds());
 }
 public void Display(int pauseThen, Picture picture)
 {
     Thread.Sleep(pauseThen.ToMilliseconds());
     Display(picture);
 }
 public void Display(Picture picture)
 {
     OnPictureChanged(new PictureEventArgs(picture));
 }