1.打开VS2019,新建一个Form窗体,工具->NuGet包管理工具->管理解决方案的NuGet包,在浏览里搜索AForge.Controls、AForge.Video.DirectShow,安装AForge.Controls和AForge.Video.DirectShow
![](https://img-blog.csdnimg.cn/img_convert/a3570519e113d6c52130290b5f52aa32.png)
![](https://img-blog.csdnimg.cn/img_convert/7b1dc5ed061055f474fb80e42c56ee54.png)
2.安装AForge组件完成后,VS工具箱会新增AForge控件,把AForge.NET中的VideoSourcePlayer拖到Form窗体上
![](https://img-blog.csdnimg.cn/img_convert/1bc290d439a215c271393bdc7a320b81.png)
3.关键代码
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 | #region 变量 /// <summary> /// 摄像头设备集合 /// </summary> FilterInfoCollection videoDevices; /// <summary> /// 捕获设备资源 /// </summary> VideoCaptureDevice videoSource; /// <summary> /// 处理图片 /// </summary> Bitmap bitImg; #endregion /// <summary> /// 先检测摄像头 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void Form1_Load( object sender, EventArgs e) { //检测电脑所有的摄像头 videoDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice); MessageBox.Show( "检测到了【" + videoDevices.Count.ToString() + "】个摄像头" ); //获取需要拍照的设备 videoSource = new VideoCaptureDevice(videoDevices[0].MonikerString); videoSourcePlayer1.VideoSource = videoSource; //启动摄像头 videoSourcePlayer1.Start(); } /// <summary> /// 拍照 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button1_Click( object sender, EventArgs e) { //拍摄并获取图片 bitImg = videoSourcePlayer1.GetCurrentVideoFrame(); } /// <summary> /// 关闭摄像头 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button2_Click( object sender, EventArgs e) { ShutCamera(); } /// <summary> /// 关闭并释放摄像头 /// </summary> public void ShutCamera() { if (videoSourcePlayer1.VideoSource != null ) { videoSourcePlayer1.SignalToStop(); videoSourcePlayer1.WaitForStop(); videoSourcePlayer1.VideoSource = null ; } } |