private void timer1_Tick(object sender, EventArgs e)
 {
     if (numericUpDown3.Value > 0)
     {
         numericUpDown3.Value--;
     }
     else
     {
         numericUpDown3.Value = 59;
         if (numericUpDown2.Value > 0)
         {
             numericUpDown2.Value--;
         }
         else
         {
             numericUpDown2.Value = 59;
             if (numericUpDown1.Value > 0)
             {
                 numericUpDown1.Value--;
             }
             else
             {
                 numericUpDown1.Value = 23;
             }
         }
     }
     if (numericUpDown2.Value == 0 && numericUpDown3.Value == 0 && numericUpDown1.Value == 0)
     {
         timer1.Stop();
         Annoucement AnnounceForm = new Annoucement(NoteHead, NoteContent, DrawNote, Picture);
         AnnounceForm.Show();
     }
 }
 private void timer2_Tick(object sender, EventArgs e)
 {
     dateTimePicker2.Value = DateTime.Now;
     if (dateTimePicker1.Value.ToString() == dateTimePicker2.Value.ToString())
     {
         timer2.Stop();
         Annoucement AnnounceForm = new Annoucement(NoteHead, NoteContent, DrawNote, Picture);
         AnnounceForm.Show();
     }
 }