public MainWindow()
        {
            InitializeComponent();

            var prefs = new UserPreferences();

            this.Height      = prefs.WindowHeight;
            this.Width       = prefs.WindowWidth;
            this.Top         = prefs.WindowTop;
            this.Left        = prefs.WindowLeft;
            this.WindowState = prefs.WindowState;

            PrepareParams(false);
        }