/// <summary>
 /// button getLocalHostName_Click
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="e"></param>
 private void buttongetLocalHostName_Click(object sender, EventArgs e)
 {
     textBoxResultat.AppendText("Host Name: " + Fonctions.ObtenirLocalHostName() + Environment.NewLine);
 }