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   源码介绍

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采用visionpro工具连接相机采集图像，语言c#
这是一个项目的简单Demo，只有采图和显示部分

using Cognex.VisionPro;
using Cognex.VisionPro.Exceptions;
using Cognex.VisionPro.ToolBlock;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace AcqFifoTool
{
    public partial class Form1 : Form
    {
        CogAcqFifoTool mAcqFifoTool;

        private bool m_Grab = false;

        public static Thread CamGrabThread1;
        public static Thread CamGrabThread2;

        private ManualResetEvent _muanualEven = new ManualResetEvent(false);

        byte[] imgByte;//用于加载和转换图像，以流的方式转化

        CogImage8Grey currentImage = null;
        public Form1()
        {
            InitializeComponent();
            //加载相机1 toolblock
            cogToolBlockEditV21.Subject = CogSerializer.LoadObjectFromFile(Application.StartupPath   @"\VPP\CogAcqFifoToolBlock1.vpp") as CogToolBlock;
            cogToolBlockEditV21.Subject.Ran  = new EventHandler(Subject_Ran1);
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            cogToolBlockEditV21.LocalDisplayVisible = true;
            cogToolBlockEditV21.SubjectChanged  = new EventHandler(cogToolBlockEditV21_SubjectChanged);

            mAcqFifoTool = cogToolBlockEditV21.Subject.Tools["CogAcqFifoTool1"] as CogAcqFifoTool;
        }

        void Subject_Ran1(object sender, EventArgs e)
        {
            cogRecordDisplay1.Image = cogToolBlockEditV21.Subject.Outputs["Output"].Value as CogImage8Grey;
        }

        private void cogToolBlockEditV21_SubjectChanged(object sender, EventArgs e)
        {
           
        }

        private void startBtn_Click(object sender, EventArgs e)
        {
            startBtn.BackColor = Color.Orange;
            try
            {
                if (mAcqFifoTool.Operator == null)
                {
                    MessageBox.Show("请先初始化相机");
                    startBtn.BackColor = Color.Transparent;
                    return;
                }
                m_Grab = !m_Grab;

                if (m_Grab)
                {
                    startBtn.Text = "停止采集";

                    if (CamGrabThread1 == null)
                    {
                        CamGrabThread1 = new Thread(new ThreadStart(CamContinueGrabProc1));
                        CamGrabThread1.Start();
                        _muanualEven.Set();
                    }

                    else if (CamGrabThread1.ThreadState == System.Threading.ThreadState.WaitSleepJoin)
                    {
                        _muanualEven.Set();
                    }
                }
                else
                {
                    _muanualEven.Reset();
                    startBtn.Text = "开始采集";
                    startBtn.BackColor = Color.Transparent;

                }

            }
            catch (CogException ex)
            {
                _muanualEven.Reset();
                MessageBox.Show("连续采集异常");
            }
        }

        private void CamContinueGrabProc1()
        {
            while (true)
            {
                try
                {
                    _muanualEven.WaitOne();
                    GetImage(out currentImage);
                    ShowImage(currentImage);

                    Application.DoEvents();

                    Thread.Sleep(50);
                }
                catch (CogException cogEc)
                {
                    MessageBox.Show("连续采集异常");
                }
            }
        }

        public void GetImage(out CogImage8Grey image)
        {
            image = null;
            mAcqFifoTool.Run();
            image = mAcqFifoTool.OutputImage as CogImage8Grey;
        }

        private void ShowImage(CogImage8Grey objImage)
        {
            //grabberForm.CogRecordDisplay1.DrawingEnabled = false;
            cogRecordDisplay1.Image = objImage;

            cogRecordDisplay1.Fit();
            //grabberForm.CogRecordDisplay1.DrawingEnabled = true;

        }

        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            //当toolblock改变时保存到vpp
            CogSerializer.SaveObjectToFile(cogToolBlockEditV21.Subject, Application.StartupPath   @"\VPP\CogAcqFifoToolBlock1.vpp");
        }

    }
}