Halcon学习笔记（2） VS2010 + Halcon12 C#链接相机

2021-05-01 12:29

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1.打开Halcon, 使用图像采集助手获取相机实时图像：

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　　1.1 获取实时图像：

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　　1.2 插入采集实时图像的Halcon代码，并导出：

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　　　　Image_acq.cs代码：

//
//  File generated by HDevelop for HALCON/DOTNET (C#) Version 12.0
//
//  This file is intended to be used with the HDevelopTemplate or
//  HDevelopTemplateWPF projects located under %HALCONEXAMPLES%\c#

using System;
using HalconDotNet;

public partial class HDevelopExport
{
  public HTuple hv_ExpDefaultWinHandle;

  // Main procedure 
  private void action()
  {


    // Local iconic variables 

    HObject ho_Image=null;

    // Local control variables 

    HTuple hv_AcqHandle = null;
    // Initialize local and output iconic variables 
    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", "e0508b2e4c36_DahuaTechnology_A5201MG50", 
        0, -1, out hv_AcqHandle);
    HOperatorSet.GrabImageStart(hv_AcqHandle, -1);
    while ((int)(1) != 0)
    {
      ho_Image.Dispose();
      HOperatorSet.GrabImageAsync(out ho_Image, hv_AcqHandle, -1);
      //Image Acquisition 01: Do something
    }
    HOperatorSet.CloseFramegrabber(hv_AcqHandle);
    ho_Image.Dispose();

  }

  public void InitHalcon()
  {
    // Default settings used in HDevelop 
    HOperatorSet.SetSystem("width", 512);
    HOperatorSet.SetSystem("height", 512);
  }

  public void RunHalcon(HTuple Window)
  {
    hv_ExpDefaultWinHandle = Window;
    action();
  }

}

2. 在c#项目中画好对应的按钮：

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　　对采集/停止按钮执行方法进行编程（注意头部添加using HalconDotNet; 用到线程还要添加：using System.Threading;）：

　　Form1.cs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 demo4
{
    public partial class Form1 : Form
    {
        HObject ho_Image = null;
        HTuple hv_AcqHandle = null;

        public Form1()
        {
            InitializeComponent();
        }

        Thread dispig;

        //采集
        private void button1_Click(object sender, EventArgs e)
        {
            dispig = new Thread(showFrame);
            dispig.Start();
        }
        //停止
        private void button2_Click(object sender, EventArgs e)
        {
            dispig.Abort();
            HOperatorSet.CloseFramegrabber(hv_AcqHandle);
        }

        void showFrame()
        {
            // Initialize local and output iconic variables 
            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", "e0508b2e4c36_DahuaTechnology_A5201MG50",
                0, -1, out hv_AcqHandle);
            HOperatorSet.GrabImageStart(hv_AcqHandle, -1);
            while ((int)(1) != 0)
            {
                ho_Image.Dispose();
                HOperatorSet.GrabImageAsync(out ho_Image, hv_AcqHandle, -1);
                //Image Acquisition 01: Do something
                HOperatorSet.DispObj(ho_Image, hWindowControl1.HalconWindow);
            }
            HOperatorSet.CloseFramegrabber(hv_AcqHandle);
            ho_Image.Dispose();
        }
    }
}