private void ButtonStartDiscover_Click(object sender, RoutedEventArgs e)
{
if (ListDevices.Items != null)
{
ListDevices.Items.Clear();
}
CheckListDevices();
string selector = CustomDevice.GetDeviceSelector(new Guid("53f56308-b6bf-11d0-94f2-00a0c91efb8b"));
IEnumerable <string> additionalProperties = new string[] { "System.Devices.DeviceInstanceId" };
if (cdReaderManager != null)
{
cdReaderManager.StopDiscovery();
cdReaderManager.CDReaderDeviceAdded -= CDReaderDevice_Added;
cdReaderManager.CDReaderDeviceRemoved -= CDReaderDevice_Removed;
cdReaderManager = null;
}
cdReaderManager = new CDReaderManager();
cdReaderManager.CDReaderDeviceAdded += CDReaderDevice_Added;
cdReaderManager.CDReaderDeviceRemoved += CDReaderDevice_Removed;
cdReaderManager.StartDiscovery();
ButtonStartDiscover.Visibility = Visibility.Collapsed;
ButtonStopDiscover.Visibility = Visibility.Visible;
ListDevices.IsEnabled = true;
}
private void ButtonStopDiscover_Click(object sender, RoutedEventArgs e)
{
if (cdReaderManager != null)
{
cdReaderManager.StopDiscovery();
cdReaderManager.CDReaderDeviceAdded -= CDReaderDevice_Added;
cdReaderManager.CDReaderDeviceRemoved -= CDReaderDevice_Removed;
cdReaderManager = null;
}
ButtonStartDiscover.Visibility = Visibility.Visible;
ButtonStopDiscover.Visibility = Visibility.Collapsed;
}
private async void CDReaderDevice_Added(CDReaderManager sender, CDReaderDevice args)
{
await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal,
() =>
{
if (ListDeviceInformation != null)
{
ListDeviceInformation.Add(args);
}
ListDevices.Items.Add(args.Id);
CheckListDevices();
if (bAutoStart == true)
{
bAutoStart = false;
ButtonReadCDMetadata_Click(null, null);
}
});
}
private async void CDReaderDevice_Removed(CDReaderManager sender, CDReaderDevice args)
{
await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal,
() =>
{
if ((ListDeviceInformation != null) && (ListDeviceInformation.Count > 0))
{
foreach (var d in ListDeviceInformation)
{
if (d.Id == args.Id)
{
ListDeviceInformation.Remove(d);
break;
}
}
}
ListDevices.Items.Remove(args.Id);
CheckListDevices();
});
}
