EMGU 三 打开摄像头

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;using Emgu.CV;using Emgu.CV.CvEnum;using Emgu.CV.Structure;using Emgu.CV.UI;namespace test{    public partial class Form1 : Form    {        public Form1()        {            InitializeComponent();        }        private void Form1_Load(object sender, EventArgs e)        {                    }        private void button1_Click(object sender, EventArgs e)        {            ImageViewer viewer = new ImageViewer(); //create an image viewer            VideoCapture capture = new VideoCapture(); //create a camera captue            Application.Idle += new EventHandler(delegate (object sender1, EventArgs e1)            {  //run this until application closed (close button click on image viewer)                viewer.Image = capture.QueryFrame(); //draw the image obtained from camera                pictureBox1.Image = viewer.Image.Bitmap;            });            //viewer.ShowDialog(); //show the image viewer            //pictureBox1.Image = viewer.Image.Bitmap;        }    }}