gistfile1.cs

public MainPage()
{
    InitializeComponent();
    
    CameraCaptureTask cct = new CameraCaptureTask(); // initalize task
    cct.Completed += new System.EventHandler<PhotoResult>(this.PhotoChooserCompleted); // wire up the event

    cct.Show(); // launch camera
}

private void PhotoChooserCompleted(object sender, PhotoResult e)
{
    this.showInProgress = false;
    if (e.TaskResult == TaskResult.OK) // if capture completed
    {
        this.StartOcrConversion(e.ChosenPhoto); // launch OCR service
    }
}