Scanning barcodes in Win10 via surface pro 6 camera

Paul Long 1 Reputation point

I found this code in a 2014/5 question in the MSDN forums...
Can someone tell me which technology this is using? It looks like WPF to me, but I'm hoping I can convert it and integrate it into an existing VB2017 project i have. Is that possible? What dependencies does this code use? Do i need references, nuget packages, or is this something else?

private async void StartPreview_Click(object sender, RoutedEventArgs e)
//var resultCamera = await GetMediaCapture();

    Windows.Devices.Enumeration.Panel location = Windows.Devices.Enumeration.Panel.Back;

    var cameras = await DeviceInformation.FindAllAsync(DeviceClass.VideoCapture);

    foreach (var camera in cameras)
        if (camera.EnclosureLocation.Panel == location)
            var mcs = new MediaCaptureInitializationSettings();
            mcs.VideoDeviceId = camera.Id;
            mcs.PhotoCaptureSource = PhotoCaptureSource.VideoPreview;
            mcs.StreamingCaptureMode = StreamingCaptureMode.Video;
            var mc = new MediaCapture();
            await mc.InitializeAsync(mcs);

            VideoStream.Source = mc;
            await mc.StartPreviewAsync();
            ShowSettings.Visibility = Visibility.Visible;
            StartPreview.IsEnabled = false;

            var properties = mc.VideoDeviceController.GetMediaStreamProperties(MediaStreamType.VideoPreview);

            var videoEncodingProperties = properties as VideoEncodingProperties;
            if (videoEncodingProperties != null)
                var writeableBitmap = new WriteableBitmap((int)videoEncodingProperties.Width, (int)videoEncodingProperties.Height);

                await Task.Delay(1000);

                bool barCodeNotFound = true;

                while (barCodeNotFound)
                    await mc.CapturePhotoToStreamAsync(imageEncoding, stream);


                    await writeableBitmap.SetSourceAsync(stream);

                    var result = ScanBitmap(writeableBitmap);
                    if (result != null)
                        ScanResult.Text = result.Text;
                        barCodeNotFound = false;
                        await mc.StopPreviewAsync(); 
                        mc = null;
                        previewStarted = false;
                        VideoStream.Source = null;
                        StartPreview.IsEnabled = true;

            // return mc;
Universal Windows Platform (UWP)
{count} votes