private async void RealTimeInkPage_Loaded(object sender, RoutedEventArgs e)
{
IDigitalInkDevice device = AppObjects.Instance.Device;
if (device == null)
{
textBlockPrompt.Text = "Device not connected";
return;
}
device.Disconnected += OnDeviceDisconnected;
device.DeviceStatusChanged += OnDeviceStatusChanged;
device.PairingModeEnabledCallback = OnPairingModeEnabledAsync;
IRealTimeInkService service = device.GetService(InkDeviceService.RealTimeInk) as IRealTimeInkService;
service.NewPage += OnNewPage;
service.HoverPointReceived += OnHoverPointReceived;
//service.StrokeStarted += Service_StrokeStarted;
//service.StrokeEnded += Service_StrokeEnded;
//service.StrokeUpdated += Service_StrokeUpdated;
if (service == null)
{
textBlockPrompt.Text = "The Real-time Ink service is not supported on this device";
return;
}
textBlockPrompt.Text = AppObjects.GetStringForDeviceStatus(device.DeviceStatus);
try
{
uint width = (uint)await device.GetPropertyAsync("Width", m_cts.Token);
uint height = (uint)await device.GetPropertyAsync("Height", m_cts.Token);
uint ptSize = (uint)await device.GetPropertyAsync("PointSize", m_cts.Token);
service.Transform = AppObjects.CalculateTransform(width, height, ptSize);
float scaleFactor = ptSize * AppObjects.micrometerToDip;
InkCanvasDocument document = new InkCanvasDocument();
document.Size = new Windows.Foundation.Size(height * scaleFactor, width * scaleFactor);
document.InkCanvasLayers.Add(new InkCanvasLayer());
inkCanvas.InkCanvasDocument = document;
inkCanvas.GesturesManager = new GesturesManager();
inkCanvas.StrokeDataProvider = service;
if (!service.IsStarted)
{
await service.StartAsync(false, m_cts.Token);
}
}
catch (Exception)
{
}
}
private void listView_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
var item = listView.SelectedItem as InkDocumentDisplayItem;
if (item != null)
{
inkCanvas.InkCanvasDocument = InkCanvasDocument.FromInkDocument(item.Document);
}
}