AForge.NET 是用C#写的一个关于计算机视觉和人工智能领域的框架。它包括图像处理、神经网络、遗传算法和机器学习等。

我利用它搞的程序现在能同时显示两路摄像头视频,但只能保存一路视频的图像,有用过AForge.NET的吗?请问
如何正确保存图像.如果不设flag标志,它会一直保存起来不停.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Imaging;
using System.Text;
using System.Windows.Forms;
using System.Threading;
using AForge;
using AForge.Video;
using AForge.Video.DirectShow;
using AForge.Imaging;
using AForge.Imaging.Filters;

//         

namespace Camera
{
    public partial class Form1 : Form
    {
        private int flag = 1;
          private int   flag2=1;   

        private VideoCaptureDevice videoSource1;
        private VideoCaptureDevice videoSource2;

        private FilterInfoCollection videoDevices;
       

       
        //修改构造函数
        public Form1()
        {
            InitializeComponent();
         //让委托变量等于"设置标签的文本"的方法
        }

        public delegate void setLabelTextDelegate(); //定义一个委托

        private setLabelTextDelegate  BrowsLable;   //定义这个委托的一个变量


        private void ChengText()
        {
            this.label1.Text = "两路摄像头驱动成功!";
            
        }



        private void ThreadMethod()
        {
            this.label1.Invoke(BrowsLable);  //括号里面是上面定义的委托变量
           
        }


        private void Form1_Load(object sender, EventArgs e)
        {
           
            //新建立一个线程
        
            System.Threading.Thread setLabelTextThread = new System.Threading.Thread(new System.Threading.ThreadStart(ThreadMethod));


            this.BrowsLable = this.ChengText;  //让委托变量等于"设置标签的文本"的方法

            setLabelTextThread.Start();

        
            
            try
            {
                // 枚举所有视频输入设备
                videoDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice);

                if (videoDevices.Count == 0)
                    throw new ApplicationException(); //抛出错误信息

                foreach (FilterInfo device in videoDevices)
                {
                    tscbxCameras.Items.Add(device.Name);
                }

                tscbxCameras.SelectedIndex = 0;
            }
            catch (ApplicationException)
            {
                tscbxCameras.Items.Add("摄像头没有连接!");
                videoDevices = null;
            }

                //连接摄像头1
                CameraConn1();

                 //连接摄像头2
                CameraConn2();
         
              
        }

        private void toolStripButton1_Click(object sender, EventArgs e)
        {
            CameraConn1();
        }



        private void CameraConn1()
        {
           videoSource1 = new VideoCaptureDevice(videoDevices[0].MonikerString);
            videoSource1.DesiredFrameSize = new Size(320, 240);
            videoSource1.DesiredFrameRate = 15;
          
            videPlayer.VideoSource = videoSource1;
            videPlayer.Start();
           
        }


        private void CameraConn2()
        {
            videoSource2 = new VideoCaptureDevice(videoDevices[1].MonikerString);
            videoSource2.DesiredFrameSize = new Size(320, 240);
            videoSource2.DesiredFrameRate = 15;

            videPlayer1.VideoSource = videoSource2;
            videPlayer1.Start();
        }


        //停止摄像头
        private void toolStripButton2_Click(object sender, EventArgs e)
        {
            videPlayer.SignalToStop();
            videPlayer.WaitForStop();
            videPlayer1.SignalToStop();
            videPlayer1.WaitForStop();
        }

        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            toolStripButton2_Click(null, null);
        }


       
        private void video_NewFrame(object sender, NewFrameEventArgs eventArgs)
        {
            if (flag ==1)
           {
                Bitmap bitmap = (Bitmap)eventArgs.Frame.Clone();

              
                    try
                    {
                        lock (this)
                       {
                            string path = "c:\\" + DateTime.Now.ToString("MMddhhmmss") + ".bmp";
                            bitmap.Save(path, System.Drawing.Imaging.ImageFormat.Bmp);
                            bitmap.Save(path, System.Drawing.Imaging.ImageFormat.Bmp);
                           flag = 0;

                        }
                    }
                    catch (Exception ex)
                    {
                        MessageBox.Show("保存图像失败!\n" + ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    }
                

          }
             
        }



        private void video_NewFrame2(object sender, NewFrameEventArgs eventArgs)
        {
           if (flag2 == 1)
           {
                Bitmap bitmap = (Bitmap)eventArgs.Frame.Clone();

                try
                {
                   lock (this)
                    {
                        string path="c:\\" + DateTime.Now.ToString("MMddhhmmss")+".bmp";
                        bitmap.Save(path, System.Drawing.Imaging.ImageFormat.Bmp);
                        flag2= 0;

                    }
                }
                catch (Exception ex)
                {
                    MessageBox.Show("保存图像失败!\n" + ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }


          }

        }



         private void button1_Click(object sender, Form1 eventArgs)
         {

         }


        //保存图片
         private void button1_Click(object sender, EventArgs e)
         {
                       
             while (flag == 1)
             {
                 videoSource1.NewFrame += new NewFrameEventHandler(video_NewFrame);
             
             }


             while (flag2 == 1)
             {

                 videoSource2.NewFrame += new NewFrameEventHandler(video_NewFrame2);
             }
             
                         
             label1.Text = "拍照成功,完成时间:" + DateTime.Now.ToString("yyyyMMddhhmmss");
         }



         private void button2_Click(object sender, EventArgs e)
         {
             videoSource1.Stop();
         }

         private void button3_Click(object sender, EventArgs e)
         {
             videoSource1.Start();
         }

       


         // New frame received by the player  //在视频上写文字
         private void videoSourcePlayer_NewFrame(object sender, ref Bitmap image)
         {
             DateTime now = DateTime.Now;
             Graphics g = Graphics.FromImage(image);

             // paint current time
             SolidBrush brush = new SolidBrush(Color.Red);
             g.DrawString(now.ToString(), this.Font, brush, new PointF(5, 5));
            

             brush.Dispose();

             g.Dispose();
         }



         // New frame received by the player  //在视频上写文字
         private void videoSourcePlayer_NewFrame2(object sender, ref Bitmap image)
         {
             DateTime now = DateTime.Now;
             Graphics g = Graphics.FromImage(image);

             // paint current time
             SolidBrush brush = new SolidBrush(Color.Red);
             g.DrawString(now.ToString(), this.Font, brush, new PointF(5, 5));
           
             brush.Dispose();

             g.Dispose();
         }
      


    }
}