private void btnWritePowerDownSeq_Click(object sender, RoutedEventArgs e)
        {
            Screen screen = (Screen)cmbxScreenList.SelectedItem;

            PowerSequence seq = new PowerSequence();

            seq.VPOS = (PowerStrobe)byte.Parse(((ListBoxItem)cmbxPowerDownSeqVPOS.SelectedItem).Uid);
            seq.VNEG = (PowerStrobe)byte.Parse(((ListBoxItem)cmbxPowerDownSeqVNEG.SelectedItem).Uid);
            seq.VDDH = (PowerStrobe)byte.Parse(((ListBoxItem)cmbxPowerDownSeqVDDH.SelectedItem).Uid);
            seq.VEE  = (PowerStrobe)byte.Parse(((ListBoxItem)cmbxPowerDownSeqVEE.SelectedItem).Uid);

            screen.PowerDownSequence = seq;
        }
        private void btnReadPowerDownSeq_Click(object sender, RoutedEventArgs e)
        {
            Screen screen = (Screen)cmbxScreenList.SelectedItem;

            PowerSequence seq = screen.PowerDownSequence;

            foreach (ListBoxItem item in cmbxPowerDownSeqVPOS.Items)
            {
                if (item.Uid == ((byte)seq.VPOS).ToString())
                {
                    cmbxPowerDownSeqVPOS.SelectedItem = item;
                }
            }

            foreach (ListBoxItem item in cmbxPowerDownSeqVNEG.Items)
            {
                if (item.Uid == ((byte)seq.VNEG).ToString())
                {
                    cmbxPowerDownSeqVNEG.SelectedItem = item;
                }
            }

            foreach (ListBoxItem item in cmbxPowerDownSeqVDDH.Items)
            {
                if (item.Uid == ((byte)seq.VDDH).ToString())
                {
                    cmbxPowerDownSeqVDDH.SelectedItem = item;
                }
            }

            foreach (ListBoxItem item in cmbxPowerDownSeqVEE.Items)
            {
                if (item.Uid == ((byte)seq.VEE).ToString())
                {
                    cmbxPowerDownSeqVEE.SelectedItem = item;
                }
            }
        }