private void TrayIcon_MouseClick(object sender, MouseEventArgs e)
        {
            if (e.Button != MouseButtons.Right)
            {
                return;
            }

            TrayContextMenu.Show(Cursor.Position);
        }
 private void ShowToolStripMenuItem_Click(object sender, EventArgs e)
 {
     TrayContextMenu.Hide();
     ShowClient();
 }