private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            pdfRendererer1.Filename = "glm.pdf";
            string message = "";
            Stream LoadStream;

            if (!TEST_ANNOT)
            {
                LoadStream = new MemoryStream(PdfiumViewerWPFSimple.Properties.Resources.glm);
            }
            else
            {
                using (FileStream fs = new FileStream(TEST_ANNOT_INPUT, FileMode.Open))
                {
                    byte[] data = new byte[fs.Length];
                    fs.Read(data, 0, data.Length);
                    LoadStream = new MemoryStream(data);
                }
            }
            pdfRendererer1.ViewArea.PdfRenderer.Load(PdfRenderer.OpenDocument2(LoadStream, ref message)); //FIXME:

            timer.Interval = TimeSpan.FromMilliseconds(100);
            timer.Tick    += timer_Tick;
            timer.Start();
            this.slider1.DragOver += delegate {
                this.isSliderEnter = true;
            };
            this.slider1.ValueChanged += new RoutedPropertyChangedEventHandler <double>(Window1_ValueChanged);
            this.slider1.MouseEnter   += delegate {
                this.slider1.Visibility = Visibility.Visible;
                this.slider1.Opacity    = 1.0;
                this.isSliderEnter      = true;
            };
            this.slider1.MouseLeave += delegate {
                this.isSliderEnter = false;
            };
            this.KeyDown += new KeyEventHandler(Window1_KeyDown);
        }