private void timer1_Tick(object sender, EventArgs e)
 {
     numImageAf++;
     if (numImageAf == NombreImagesListe())
         numImageAf = 0;
     pictureBox1.Image = ListeDeMotsIllustres.ObtenirElementParRang(numImageAf).GetImageMot();
 }
 private string GenererMot()
 {
     numMotCh = generateur.Next(0, NombreImagesListe());
     string mot = ListeDeMotsIllustres.ObtenirElementParRang(numMotCh).GetMot().ToUpper();
     return mot;
 }