public Preview()
        {
            InitializeComponent();
            var workArea = WindowTools.GetPrimaryScreen().WorkingArea;

            Left   = WindowTools.ConvertPixelsToDiPixels(workArea.Right) - Width;
            Top    = WindowTools.ConvertPixelsToDiPixels(workArea.Top);
            Height = WindowTools.ConvertPixelsToDiPixels(workArea.Height);
        }