Wpf和C#捕获网络摄像头和网络摄像头

using System;
using System.Windows;
using System.Windows.Media.Imaging;
using Windows.Media.Capture;
using Windows.Storage.Streams;

namespace WpfCameraCapture
{
    public partial class MainWindow : Window
    {
        private MediaCapture mediaCapture;

        public MainWindow()
        {
            InitializeComponent();
        }

        private async void StartCaptureButton_Click(object sender, RoutedEventArgs e)
        {
            mediaCapture = new MediaCapture();
            await mediaCapture.InitializeAsync();

            PreviewImage.Source = mediaCapture;
            await mediaCapture.StartPreviewAsync();
            mediaCapture.VideoDeviceController.FocusControl.FocusAsync();
            mediaCapture.VideoDeviceController.ExposureControl.SetAutoAsync(true);
            mediaCapture.VideoDeviceController.WhiteBalanceControl.SetAutoAsync(true);
        }

        private async void StopCaptureButton_Click(object sender, RoutedEventArgs e)
        {
            await mediaCapture.StopPreviewAsync();
            mediaCapture.Dispose();
        }

        private async void CaptureButton_Click(object sender, RoutedEventArgs e)
        {
            var imageFile = await Windows.Storage.KnownFolders.PicturesLibrary.CreateFileAsync("Capture.jpg", Windows.Storage.CreationCollisionOption.GenerateUniqueName);
            using (var captureStream = new InMemoryRandomAccessStream())
            {
                await mediaCapture.CapturePhotoToStreamAsync(Windows.Media.MediaProperties.ImageEncodingProperties.CreateJpeg(), captureStream);
                using (var fileStream = await imageFile.OpenAsync(Windows.Storage.FileAccessMode.ReadWrite))
                {
                    await RandomAccessStream.CopyAndCloseAsync(captureStream.GetInputStreamAt(0), fileStream.GetOutputStreamAt(0));
                }
            }
        }
    }
}