C# CameraCaptureTask类代码示例

        // Constructor
        public MainPage()
        {
            InitializeComponent();

            cameraCapture = new CameraCaptureTask();
            cameraCapture.Completed += cameraCapture_Completed;
        }

        public RecipeDetailPage()
        {
            InitializeComponent();

            camera = new CameraCaptureTask();
            camera.Completed += camera_Completed;
        }

        //DateTime lastTouchUpdate;
        public PicEffect()
        {
            InitializeComponent();

            // Init vars
            oldViewportSize = new Size(Viewport.ActualWidth, Viewport.ActualHeight);
            wasResized = false;

            // Attach touch event handler
            Touch.FrameReported += Touch_FrameReported;

            // Init tasks
            cameraCaptureTask = new CameraCaptureTask();
            cameraCaptureTask.Completed += PhotoProviderTaskCompleted;
            photoChooserTask = new PhotoChooserTask();
            photoChooserTask.Completed += PhotoProviderTaskCompleted;

            // Disable the camera button if the app runs in the emulator
            // Todo: The BtnCamera reference returns null in WP7 v1
            // BtnCamera.IsEnabled = Microsoft.Devices.Environment.DeviceType != DeviceType.Emulator;
            // That's why we have to use this more hacky trick:
            var buttons = ApplicationBar.Buttons.Cast<Microsoft.Phone.Shell.ApplicationBarIconButton>();
            var btn = buttons.Where(b => b.IconUri.ToString().ToLower().Contains("camera")).FirstOrDefault();
            //if (btn != null)
            //{
                //btn.IsEnabled = Microsoft.Devices.Environment.DeviceType != DeviceType.Emulator;
            //}
            BackKeyPress += OnBackKeyPressed;
        }

        // Constructor
        public MainPage()
        {
            InitializeComponent();

              _cameraTask = new CameraCaptureTask();
              _cameraTask.Completed += cameraTask_Completed;
        }

        // Constructor
        public MainPage()
        {
            InitializeComponent();

            camera = new CameraCaptureTask();
            camera.Completed += new EventHandler<PhotoResult>(camera_Completed);
        }

        public MainPage()
        {
            InitializeComponent();

            _captureCamera = new CameraCaptureTask();
            _captureCamera.Completed += _captureCamera_Completed;
        }

        private void BtnTakePictureClick(object sender, RoutedEventArgs e)
        {
            var captureTask = new CameraCaptureTask();
            _geoLocationManager.RetrieveCurrentLocation();
            captureTask.Completed += (s, a) =>
                                         {
                                             try
                                             {
                                                 if (a.Error == null && a.TaskResult == TaskResult.OK && a.ChosenPhoto != null)
                                                 {
                                                     var photo = new Photo
                                                                     {
                                                                         Latitude = _geoLocationManager.Latitude,
                                                                         Longitude = _geoLocationManager.Longitude
                                                                     };
                                                     var bytes = new byte[a.ChosenPhoto.Length];
                                                     a.ChosenPhoto.Read(bytes, 0, bytes.Length);
                                                     a.ChosenPhoto.Close();
                                                     photo.ImageBytes = bytes;

                                                     _persistenceManager.Add(photo);
                                                 }
                                             }
                                             catch (Exception ex)
                                             {
                                                Console.WriteLine(ex.Message);
                                             }
                                         };
            captureTask.Show();
        }

        public Scan()
        {
            InitializeComponent();

            cameraCaptureTask = new CameraCaptureTask();
            Loaded += new RoutedEventHandler(SearchView_Loaded);
        }

        public CameraCaptureCommand(object parameter)
        {
            _captureTask = new CameraCaptureTask();
            _captureTask.Completed += CaptureTaskOnCompleted;

            _viewModel = (MainViewModel) parameter;
        }

 //Save the captured image to isolated storage
 private void Save_the_captured_image(object sender, RoutedEventArgs e)
 {
     CameraCaptureTask photoCameraCapture = new CameraCaptureTask();
     photoCameraCapture = new CameraCaptureTask();
     photoCameraCapture.Completed += new EventHandler<PhotoResult>(photoCameraCapture_Completed);
     photoCameraCapture.Show(); 
 }

        public CreateLevel()
        {
            InitializeComponent();

            cameraTask = new CameraCaptureTask();
            cameraTask.Completed += new EventHandler<PhotoResult>(cameraTask_Completed);
        }

        public static void StartLoop()
        {
            CameraCaptureTask cameraCaptureTask = new CameraCaptureTask();
            cameraCaptureTask.Completed += new EventHandler<PhotoResult>(cameraCaptureTask_Completed);

            cameraCaptureTask.Show();
        }

 public MessageBoxUserControl()
 {
     InitializeComponent();
     _cameraCaptureTask = new CameraCaptureTask();
     _cameraCaptureTask.Completed += cameraCaptureTask_Completed;
     StatusTextCount.Text = string.Format("{0}/{1}", StatusUpdateBox.Text.Length, Constants.STATUS_LIMIT);
 }

        /// <summary>
        /// Launches default camera application to capture image
        /// </summary>
        /// <param name="options">may contains limit or mode parameters</param>
        public void captureImage(string options)
        {
            try
            {
                try
                {
                    this.captureImageOptions = String.IsNullOrEmpty(options) ?
                        CaptureImageOptions.Default : JSON.JsonHelper.Deserialize<CaptureImageOptions>(options);

                }
                catch (Exception ex)
                {
                    this.DispatchCommandResult(new PluginResult(PluginResult.Status.JSON_EXCEPTION, ex.Message));
                    return;
                }

                cameraTask = new CameraCaptureTask();
                cameraTask.Completed += this.cameraTask_Completed;
                cameraTask.Show();
            }
            catch (Exception e)
            {
                DispatchCommandResult(new PluginResult(PluginResult.Status.ERROR, e.Message));
            }
        }

        public NewImageVM(IMessageBus Messenger,
            IStoreImages ImageStore) {
            Messenger.Listen<IElementVM<MultimediaObject>>(MessageContracts.EDIT)
                .Where(vm => vm.Model.MediaType == MediaType.Image && vm.Model.IsNew())
                .SelectMany(mmo => {
                        var capture = new CameraCaptureTask();
                        var results =
                            Observable.FromEventPattern<PhotoResult>(h => capture.Completed += h, h => capture.Completed -= h)
                            .Select(ev => ev.EventArgs)
                            .Catch(Observable.Empty<PhotoResult>())
                            .Select(res => new { VM = mmo, Result = res })
                            .Take(1)
                            .Replay(1);
                        results.Connect();
                        try {
                            capture.Show();
                        }
                        catch (InvalidOperationException) {
                        }
                        return results;
                    })
                .Where(tuple => tuple.VM != null
                    && tuple.Result != null
                    && tuple.Result.TaskResult == TaskResult.OK)
                .Do(tuple => {
                        tuple.VM.Model.Uri = ImageStore.StoreImage(tuple.VM.Model.NewFileName(), tuple.Result);

                    })
                .Select(t => t.VM as IElementVM<MultimediaObject>)
                .ToMessage(Messenger, MessageContracts.SAVE);
        }