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   源码介绍

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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 GxIAPINET;
using HalconDotNet;
using System.Threading;

namespace MERcsharp_HALCON
{
    public partial class Form1 : Form
    {
        IGXFactory m_objIGXFactory = null;                   ///<Factory对像
        IGXFeatureControl m_objIGXFeatureControl = null;                   ///<远端设备属性控制器对像
        IGXDevice m_objIGXDevice = null;                   ///<设备对像
        IGXStream m_objIGXStream = null;                   ///<流对像

                                                         
        Thread ImageProcessThread1 = null;
        bool ImageProcessFlag = false;
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            //显示相关
            hSW1.HalconWindow.SetPart(0, 0, 1944, 2592);

            IGXFactory.GetInstance().Init();
            m_objIGXFactory = IGXFactory.GetInstance();
            m_objIGXFactory.Init();
            List<IGXDeviceInfo> listGXDeviceInfo = new List<IGXDeviceInfo>();
            m_objIGXFactory.UpdateDeviceList(200, listGXDeviceInfo);
            // 判断当前连接设备个数
            if (listGXDeviceInfo.Count <= 0)
            {
                MessageBox.Show("未发现设备!");
                return;
            }
            //打开列表第一个设备

            m_objIGXDevice = m_objIGXFactory.OpenDeviceBySN(listGXDeviceInfo[0].GetSN(), GX_ACCESS_MODE.GX_ACCESS_EXCLUSIVE);
            m_objIGXFeatureControl = m_objIGXDevice.GetRemoteFeatureControl();
            //打开流
            if (null != m_objIGXDevice)
            {
                m_objIGXStream = m_objIGXDevice.OpenStream(0);
            }
            //设置采集模式连续采集
            m_objIGXFeatureControl.GetEnumFeature("AcquisitionMode").SetValue("Continuous");

            //设置触发模式为开
            m_objIGXFeatureControl.GetEnumFeature("TriggerMode").SetValue("On");

            //选择触发源为软触发
            m_objIGXFeatureControl.GetEnumFeature("TriggerSource").SetValue("Software");
            //开启采集流通道
            if (null != m_objIGXStream)
            {
                m_objIGXStream.StartGrab();
            }

            //发送开采命令
            if (null != m_objIGXFeatureControl)
            {
                m_objIGXFeatureControl.GetCommandFeature("AcquisitionStart").Execute();
            }

            //开启处理线程1
            ImageProcessFlag = true;
            ImageProcessThread1 = new Thread(OnImageGrabbed1);
            ImageProcessThread1.Start();
            
        }
        /// <summary>
        /// 通过GX_PIXEL_FORMAT_ENTRY获取最优Bit位
        /// </summary>
        /// <param name="em">图像数据格式</param>
        /// <returns>最优Bit位</returns>
        private GX_VALID_BIT_LIST __GetBestValudBit(GX_PIXEL_FORMAT_ENTRY emPixelFormatEntry)
        {
            GX_VALID_BIT_LIST emValidBits = GX_VALID_BIT_LIST.GX_BIT_0_7;
            switch (emPixelFormatEntry)
            {
                case GX_PIXEL_FORMAT_ENTRY.GX_PIXEL_FORMAT_MONO8:
                case GX_PIXEL_FORMAT_ENTRY.GX_PIXEL_FORMAT_BAYER_GR8:
                case GX_PIXEL_FORMAT_ENTRY.GX_PIXEL_FORMAT_BAYER_RG8:
                case GX_PIXEL_FORMAT_ENTRY.GX_PIXEL_FORMAT_BAYER_GB8:
                case GX_PIXEL_FORMAT_ENTRY.GX_PIXEL_FORMAT_BAYER_BG8:
                    {
                        emValidBits = GX_VALID_BIT_LIST.GX_BIT_0_7;
                        break;
                    }
                case GX_PIXEL_FORMAT_ENTRY.GX_PIXEL_FORMAT_MONO10:
                case GX_PIXEL_FORMAT_ENTRY.GX_PIXEL_FORMAT_BAYER_GR10:
                case GX_PIXEL_FORMAT_ENTRY.GX_PIXEL_FORMAT_BAYER_RG10:
                case GX_PIXEL_FORMAT_ENTRY.GX_PIXEL_FORMAT_BAYER_GB10:
                case GX_PIXEL_FORMAT_ENTRY.GX_PIXEL_FORMAT_BAYER_BG10:
                    {
                        emValidBits = GX_VALID_BIT_LIST.GX_BIT_2_9;
                        break;
                    }
                case GX_PIXEL_FORMAT_ENTRY.GX_PIXEL_FORMAT_MONO12:
                case GX_PIXEL_FORMAT_ENTRY.GX_PIXEL_FORMAT_BAYER_GR12:
                case GX_PIXEL_FORMAT_ENTRY.GX_PIXEL_FORMAT_BAYER_RG12:
                case GX_PIXEL_FORMAT_ENTRY.GX_PIXEL_FORMAT_BAYER_GB12:
                case GX_PIXEL_FORMAT_ENTRY.GX_PIXEL_FORMAT_BAYER_BG12:
                    {
                        emValidBits = GX_VALID_BIT_LIST.GX_BIT_4_11;
                        break;
                    }
                case GX_PIXEL_FORMAT_ENTRY.GX_PIXEL_FORMAT_MONO14:
                    {
                        //暂时没有这样的数据格式待升级
                        break;
                    }
                case GX_PIXEL_FORMAT_ENTRY.GX_PIXEL_FORMAT_MONO16:
                case GX_PIXEL_FORMAT_ENTRY.GX_PIXEL_FORMAT_BAYER_GR16:
                case GX_PIXEL_FORMAT_ENTRY.GX_PIXEL_FORMAT_BAYER_RG16:
                case GX_PIXEL_FORMAT_ENTRY.GX_PIXEL_FORMAT_BAYER_GB16:
                case GX_PIXEL_FORMAT_ENTRY.GX_PIXEL_FORMAT_BAYER_BG16:
                    {
                        //暂时没有这样的数据格式待升级
                        break;
                    }
                default:
                    break;
            }
            return emValidBits;
        }
        private void OnImageGrabbed1()
        {

            // System.Threading.Monitor.Enter(UsingImageProcess1);
            while (ImageProcessFlag)
            {
                //每次发送触发命令之前清空采集输出队列
                //防止库内部缓存帧，造成本次GXGetImage得到的图像是上次发送触发得到的图
                if (null != m_objIGXStream)
                {
                    m_objIGXStream.FlushQueue();
                }

                //发送软触发命令
                if (null != m_objIGXFeatureControl)
                {
                    m_objIGXFeatureControl.GetCommandFeature("TriggerSoftware").Execute();
                }

                //获取图像
                IImageData objIImageData = null;
                if (null != m_objIGXStream)
                {
                    
                    objIImageData = m_objIGXStream.GetImage(500);
                    IntPtr pImg=objIImageData.GetBuffer();
                    IntPtr pRGBImg = IntPtr.Zero;
                    if (objIImageData.GetPixelFormat() != GX_PIXEL_FORMAT_ENTRY.GX_PIXEL_FORMAT_MONO8)
                    {
                        GX_VALID_BIT_LIST emValidBits = GX_VALID_BIT_LIST.GX_BIT_0_7;
                        emValidBits = __GetBestValudBit(objIImageData.GetPixelFormat());
                        pRGBImg = objIImageData.ConvertToRGB24(emValidBits, GX_BAYER_CONVERT_TYPE_LIST.GX_RAW2RGB_NEIGHBOUR, false);
                    }
                    HObject ho_Image;
                    // Initialize local and output iconic variables 
                    HOperatorSet.GenEmptyObj(out ho_Image);
                    ho_Image.Dispose();
                    int width = (int)objIImageData.GetWidth();
                    int height = (int)objIImageData.GetHeight();
                    if (pRGBImg!=IntPtr.Zero)
                    {
                        HOperatorSet.GenImageInterleaved(out ho_Image, pRGBImg, "bgr", width,
                            height, -1, "byte", 0, 0, 0, 0, -1, 0);
                    }
                    else
                    {
                        HOperatorSet.GenImage1(out ho_Image, "byte", width, height, pImg);
                    }
                    hSW1.HalconWindow.SetPart(0, 0, height,width);
                    hSW1.HalconWindow.DispObj(ho_Image);
                }
                if (null != objIImageData)
                {
                    //用完之后释放资源
                    objIImageData.Destroy();
                }
            }
            // 如果未停采则先停止采集
            if (null != m_objIGXFeatureControl)
            {
                m_objIGXFeatureControl.GetCommandFeature("AcquisitionStop").Execute();
                m_objIGXFeatureControl = null;
            }
            //停止流通道和关闭流
            if (null != m_objIGXStream)
            {
                m_objIGXStream.StopGrab();
                m_objIGXStream.Close();
                m_objIGXStream = null;
            }
            //关闭设备
            if (null != m_objIGXDevice)
            {
                m_objIGXDevice.Close();
                m_objIGXDevice = null;
            }
        }
        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            ImageProcessFlag = false;
            ImageProcessThread1.Join();
            IGXFactory.GetInstance().Uninit();
        }

        private void btnWB_Click(object sender, EventArgs e)
        {
            //设置白平衡
            if (null != m_objIGXFeatureControl)
            {
                m_objIGXFeatureControl.GetEnumFeature("BalanceWhiteAuto").SetValue("Once");
            }
        }
    }
}