C#与Halcon联合编程之图像处理文件选取和相机实时采集

【实例截图】

【核心代码】

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 HalconDotNet;
using System.Threading;

namespace 初练
{
    public partial class Form1 : Form
    {
        HObject ho_Image, ho_Regions,ho_image;
        HTuple hv_window;
        HTuple hv_AcqHandle = null, hv_Width = new HTuple();
        HTuple hv_Height = new HTuple();

        private bool Acqthread_stop = false;

        private Thread thread_Acquire = null;
        public Form1()
        {
            InitializeComponent();
        }

        private void Form_Load(object sender, EventArgs e)
        {
            thread_Acquire = new Thread(new ThreadStart(Acq_Function));
        }

        private void Acq_Function()
        {
        
        //    ho_image.Dispose();
        //    HOperatorSet.GrabImageAsync(out ho_image, hv_AcqHandle, -1);
        //    HOperatorSet.GetImageSize(ho_image, out hv_Width, out hv_Height);
        //    HOperatorSet.SetPart(hv_AcqHandle, 0, 0, hv_Height, hv_Width);

        //    HOperatorSet.DispObj(ho_image, hv_AcqHandle);
        }

        private void Select_btn_Click(object sender, EventArgs e)
        {
            openFileDialog.Filter = "JEPG文件|*.jpg*|BMP文件|*.bmp*|PNG文件|*.png*";
            openFileDialog.RestoreDirectory = true;

            HOperatorSet.GenEmptyObj(out ho_Image);
            HOperatorSet.GenEmptyObj(out ho_Regions);

            ho_Image.Dispose();

            string imagepath;
            if (openFileDialog.ShowDialog() == DialogResult.OK)
            {
                imagepath = openFileDialog.FileName;
                HOperatorSet.ReadImage(out ho_Image, imagepath);
            }
        }

        private void Process_btn_Click(object sender, EventArgs e)
        {
            HOperatorSet.OpenWindow(0, 0, hWindowControl1.Width, hWindowControl1.Height, hWindowControl1.HalconWindow, "", "", out hv_window);
            HDevWindowStack.Push(hv_window);

            //HOperatorSet.GetImageSize(ho_Image, out hv_Width, out hv_Height);
            HOperatorSet.SetPart(hv_window, 0, 0, hWindowControl1.Height,hWindowControl1.Width); 
            HOperatorSet.DispObj(ho_Image, hv_window);
            
            ho_Regions.Dispose();
            HOperatorSet.Threshold(ho_Image, out ho_Regions, 81, 141);
            HOperatorSet.SetColor(hv_window,"red");
            HOperatorSet.DispObj(ho_Regions, hv_window);
            ho_Image.Dispose();
            ho_Regions.Dispose();
        }

        private void OpenC_btn_Click(object sender, EventArgs e)
        {
            if (this.OpenC_btn.Text == "打开相机")
            {
                this.OpenC_btn.Text = "关闭相机";
                HOperatorSet.GenEmptyObj(out ho_image);
                //Image Acquisition 01: Code generated by Image Acquisition 01
                HOperatorSet.OpenFramegrabber("GigEVision", 0, 0, 0, 0, 0, 0, "default", -1,
                    "default", -1, "false", "default", "0021490152b1_DahengImaging_MER13230GM",
                    0, -1, out hv_AcqHandle);
                HOperatorSet.GrabImageStart(hv_AcqHandle, -1);

                UpdateLogMessage("打开相机\r\n");
            }
            else if (this.OpenC_btn.Text == "关闭相机")
            {
                this.OpenC_btn.Text = "打开相机";
                HOperatorSet.CloseFramegrabber(hv_AcqHandle);
                ho_image.Dispose();
                UpdateLogMessage("关闭相机\r\n");
            }
        }

        private void UpdateLogMessage(string Content)
        {
            string TotalContent = DateTime.Now.ToString("yyyy年MM月dd日HH时mm分ss秒")   Content;
            this.Display_tb.AppendText(TotalContent);
        }

        private void Action_btn_Click(object sender, EventArgs e)
        {
            //Acqthread_stop = false;                                 //使用线程的情况下
            //while (!Acqthread_stop)
            //{
            //    HOperatorSet.OpenWindow(0, 0, hWindowControl2.Width, hWindowControl2.Height, hWindowControl2.HalconWindow, "", "", out hv_AcqHandle);
            //    HDevWindowStack.Push(hv_AcqHandle);
            //    if (thread_Acquire.ThreadState == System.Threading.ThreadState.Unstarted)
            //    {
            //        thread_Acquire.Start();
            //    }
            //    if (thread_Acquire.ThreadState == System.Threading.ThreadState.Stopped || thread_Acquire.ThreadState == System.Threading.ThreadState.Aborted)
            //    {
            //        thread_Acquire = new Thread(new ThreadStart(Acq_Function));
            //        thread_Acquire.Start();
            //    }
            //}
            
                if (this.Action_btn.Text == "开始采集" && this.OpenC_btn.Text == "关闭相机")
                {
                    timer1.Enabled = true;
                    this.Action_btn.Text = "停止采集";
                    
                    HOperatorSet.OpenWindow(0, 0, hWindowControl2.Width, hWindowControl2.Height, hWindowControl2.HalconWindow, "", "", out hv_window);
                    HDevWindowStack.Push(hv_window);                 //使用定时器的情况下
                    UpdateLogMessage("开始采集\r\n");
                }
                else if (this.Action_btn.Text == "停止采集")
                {
                    timer1.Enabled = false;
                    this.Action_btn.Text = "开始采集";
                    HOperatorSet.CloseWindow(hv_window);
                    UpdateLogMessage("停止采集\r\n");
                }
           

        }

        private void timer1_Tick(object sender, EventArgs e)
        {
           
           
            ho_image.Dispose();
            HOperatorSet.GrabImageAsync(out ho_image, hv_AcqHandle, -1);
            HOperatorSet.GetImageSize(ho_image, out hv_Width, out hv_Height);
            HOperatorSet.SetPart(hv_window, 0, 0, hv_Height, hv_Width);

            HOperatorSet.DispObj(ho_image, hv_window);

        }

        private void Exit_btn_Click(object sender, EventArgs e)
        {
            
            System.Environment.Exit(0);
        }


        
 

    }
}