使用aforg.net 捕获摄像头附源码

浏览数：24 / 时间：2015年06月09日

using 
System;
using 
System.Drawing;
using 
System.Windows.Forms;
using 
AForge.Video;
using 
AForge.Video.DirectShow;
 
namespace 
CameraCapture
{
    public 
partial class Form1 : Form
    {
        FilterInfoCollection filterInfoCollection;
        VideoCaptureDevice captureDevice;
        public 
Form1()
        {
            InitializeComponent();
            filterInfoCollection = new 
FilterInfoCollection(FilterCategory.VideoInputDevice);
            foreach 
(FilterInfo item in 
filterInfoCollection)
            {
                this.comboBox1.Items.Add(item.Name);
            }
            this.comboBox1.SelectedIndex = 0;
            //先初始化一下 否则在下面判断是否已运行时会报错
            captureDevice = new 
VideoCaptureDevice();
        }
 
        private 
void Form1_Load(object 
sender, EventArgs e)
        {
 
        }
 
        private 
void button1_Click(object 
sender, EventArgs e)
        {
            if 
(captureDevice.IsRunning)
                captureDevice.Stop();
            captureDevice = new 
VideoCaptureDevice(filterInfoCollection[comboBox1.SelectedIndex].MonikerString);
            captureDevice.NewFrame += captureDevice_NewFrame;
            captureDevice.Start();
        }
 
        void 
captureDevice_NewFrame(object 
sender, NewFrameEventArgs eventArgs)
        {
            this.pictureBox1.Image = (Bitmap)eventArgs.Frame.Clone();
        }
        /// <summary>
        /// 关闭后结束捕获 释放资源
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private 
void Form1_FormClosed(object 
sender, FormClosedEventArgs e)
        {
            if 
(captureDevice.IsRunning)
            {
                captureDevice.Stop();
            }
        }
    }
}