private void butExport_Click(object sender, EventArgs e)
 {
     saveFileDialog1.FileName   = "";
     saveFileDialog1.DefaultExt = "wav";
     if (saveFileDialog1.ShowDialog() != DialogResult.OK)
     {
         return;
     }
     try {
         PIn.PSound(ElementCur.Sound, saveFileDialog1.FileName);
     }
     catch (ApplicationException ex) {
         MessageBox.Show(ex.Message);
     }
 }