private async void join_Click(object sender, RoutedEventArgs e)
        {
            try
            {
                var picker = new FileOpenPicker();
                picker.ViewMode = PickerViewMode.Thumbnail;
                picker.SuggestedStartLocation = PickerLocationId.PicturesLibrary;
                picker.FileTypeFilter.Add(".png");
                picker.FileTypeFilter.Add(".jpg");
                picker.FileTypeFilter.Add(".jpeg"); var filePickerResult = await picker.PickSingleFileAsync();

                if (filePickerResult != null)
                {
                    var bytes = (await FileIO.ReadBufferAsync(filePickerResult)).ToArray();
                    var proxy = new GameServiceProxy(new Uri("http://localhost:5000"));
                    var game  = await proxy.CreateGame("Mats");

                    game = await proxy.GetGame(game.Id);

                    game = (await proxy.SubmitAnswer(game.Id, bytes)).Item2;
                }
            }
            catch (Exception ex)
            {
            }
        }
        private async void TakePhoto()
        {
            try
            {
                var capture = new CameraCaptureUI();
                capture.PhotoSettings.Format = CameraCaptureUIPhotoFormat.Png;
                var photo = await capture.CaptureFileAsync(CameraCaptureUIMode.Photo);

                if (photo != null)
                {
                    var destinationFile = await StorageFile.GetFileFromPathAsync(Path.GetTempFileName());
                    await ResizeImage(photo, destinationFile);
                    await ShowImage(destinationFile);

                    var data = await GetImageData(destinationFile);

                    Context.ResultText = " - Working...";
                    RaisePropertyChanged(() => StatusText);

                    var newGame = await _gameProxy.SubmitAnswer(Context.CurrentGame.Id, data);

                    if (newGame != null)
                    {
                        Context.CurrentGame = newGame.Item2;
                        Context.ResultText  = " - " + newGame.Item1;
                    }
                    else
                    {
                        Context.ResultText = " - Error";
                    }

                    RaisePropertyChanged(() => StatusText);
                }
            }
            catch (Exception ex)
            {
                Debug.WriteLine(ex.Message);
            }
        }