Aforge.net类库调用摄像头拍照(C#)

官网下载library

  http://www.aforgenet.com/framework/downloads.html

添加引用：

AForge.Imaging ——图像处理和过滤器

AForge.Video ——视频处理类库

AForge.Controls—— 图像显示控件

工具箱添加aforge的组件：

添加组件：

先加载列出来所有可用摄像头放到combobox，从combobox选择要用的摄像头

思路：先列出所有摄像头--打开摄像头--抓拍

using System;
using System.Drawing;
using System.Windows.Forms;
using AForge.Video.DirectShow;

namespace Aforge
{
    public partial class Form1 : DevComponents.DotNetBar.OfficeForm
    {
        public Form1()
        {
            InitializeComponent();
        }

        private FilterInfoCollection videoDevices;
        private VideoCaptureDevice videoSource;
        private int Indexof = 0;

        //添加所有的摄像头到combobox列表里
        private void Camlist()
        {
            videoDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice);

            if (videoDevices.Count == 0)
            {
                MessageBox.Show("未找到摄像头设备");
            }
            foreach (FilterInfo device in videoDevices)
            {
                Cameralist.Items.Add(device.Name);
            }
        }

        //选择要调用的摄像头，捕获视频并展示到videoSourcePlayer1
        private void Device_Click(object sender, EventArgs e)
        {
            Indexof = Cameralist.SelectedIndex;
            if (Indexof < 0)
            {
                MessageBox.Show("请选择一个摄像头");
                return;
            }
            this.pictureBox1.Visible = false;
            this.videoSourcePlayer1.Visible = true;
            //videoDevices[Indexof]确定出用哪个摄像头了。
            videoSource = new VideoCaptureDevice(videoDevices[Indexof].MonikerString);
            //设置下像素，这句话不写也可以正常运行：
            videoSource.VideoResolution = videoSource.VideoCapabilities[Indexof];
            //在videoSourcePlayer1里显示
            videoSourcePlayer1.VideoSource = videoSource;
            videoSourcePlayer1.Start();
        }

        //拍照//这里多了一个pictureBox1，想的是展示下抓拍的照片
        private void buttonX1_Click(object sender, EventArgs e)
        {
            if (videoSource == null)
            {
                MessageBox.Show("请先打开摄像头");
                return;
            }
            //videoSourcePlayer继承Control父类，定义 GetCurrentVideoFrame能输出bitmap
            Bitmap bitmap = videoSourcePlayer1.GetCurrentVideoFrame();
            pictureBox1.Image = bitmap;
            this.videoSourcePlayer1.Visible = false;
            this.pictureBox1.Visible = true;
            //这里停止摄像头继续工作 当然videoSourcePlayer里也定义了 Stop();用哪个都行
            videoSourcePlayer1.Stop();
            // videoSourcePlayer1.SignalToStop(); videoSourcePlayer1.WaitForStop();
        }

        private void buttonX2_Click(object sender, EventArgs e)
        { // 加载出来所有的摄像头
            Camlist();
        }
    }
}

（新人学习笔记，思路粗劣，让大家见笑了。）