WP7上的CameraCaptureTask

Question

我想在WP7上使用CameraCaptureTask,以便从手机获取图像并对其进行操作.我的代码是:

    CameraCaptureTask cameraCaptureTask;
    public MainPage()
    {
        InitializeComponent();

        try
        {
            cameraCaptureTask = new CameraCaptureTask();
            cameraCaptureTask.Completed += new EventHandler<PhotoResult>(cameraCaptureTask_Completed);

        }
        catch (System.InvalidOperationException ex)
        {
            MessageBox.Show(ex.Message);
        }

    }

    private void button1_Click(object sender, RoutedEventArgs e)
    {

        try
        {
            cameraCaptureTask.Show();

        }
        catch (System.InvalidOperationException ex)
        {
            MessageBox.Show(ex.Message);
        }

    }

    void cameraCaptureTask_Completed(object sender, PhotoResult e)
    {
        MessageBox.Show("event: " + e.TaskResult.ToString());
        if (e.TaskResult == TaskResult.OK)
        {                
            BitmapImage bmp = new BitmapImage();
            bmp.SetSource(e.ChosenPhoto);
            image1.Source = bmp;
        }
    }

}

问题是,每次单击button1时,都会引发事件,但值为TaskResult.Cancel,即OK.而且,在手机中没有显示相机.

任何的想法？谢谢

Answer 1

您是否正在运行调试器？如果是这样,使用Zune软件连接到设备时相机将无法工作.

如果使用WPConnect工具进行连接,那么它应该可以正常工作.