using System;using System.Collections.Generic;using System.Drawing;using System.Linq;using System.Threading;using System.Windows.Forms;using ThridLibray;namespace _1_5相机SDK图像采集{    public class Camera    {        List
     
       m_frameList = new List
      
       ();        /* 图像缓存列表 */        Thread renderThread = null;         /* 显示线程  */        bool m_bShowLoop = true;            /* 线程控制变量 */        Mutex m_mutex = new Mutex();        /* 锁，保证多线程安全 */        public event Action
       
         NewImage;        public Camera()        {            if (null == renderThread)            {                renderThread = new Thread(new ThreadStart(ShowThread));                renderThread.IsBackground = true;                renderThread.Start();            }        }        /* 转码显示线程 */        private void ShowThread()        {            while (m_bShowLoop)            {                if (m_frameList.Count == 0)                {                    Thread.Sleep(1);                    continue;                }                /* 图像队列取最新帧 */                m_mutex.WaitOne();                IGrabbedRawData frame = m_frameList.ElementAt(0);                m_frameList.RemoveAt(0);                m_frameList.Clear();                m_mutex.ReleaseMutex();                /* 主动调用回收垃圾 */                GC.Collect();                try                {                    /* 图像转码成bitmap图像 */                    var bitmap = frame.ToBitmap(false);                    if (NewImage!=null)                    {                        NewImage(bitmap);                    }                }                catch (Exception exception)                {                    Catcher.Show(exception);                }            }        }        /* 设备对象 */        private IDevice m_dev;        /* 相机打开回调 */        private void OnCameraOpen(object sender, EventArgs e)        {            MessageBox.Show("相机已打开！");        }        /* 相机关闭回调 */        private void OnCameraClose(object sender, EventArgs e)        {            MessageBox.Show("相机已关闭！");        }        /* 相机丢失回调 */        private void OnConnectLoss(object sender, EventArgs e)        {            m_dev.ShutdownGrab();            m_dev.Dispose();            m_dev = null;        }        public void btnOpen()        {            try            {                /* 设备搜索 */                List
        
          li = Enumerator.EnumerateDevices();                if (li.Count > 0)                {                    /* 获取搜索到的第一个设备 */                    m_dev = Enumerator.GetDeviceByIndex(0);                    /* 注册链接事件 */                    m_dev.CameraOpened += OnCameraOpen;                    m_dev.CameraClosed += OnCameraClose;                    /* 打开设备 */                    if (!m_dev.Open())                    {                        MessageBox.Show(@"连接相机失败");                        return;                    }                    /* 打开Software Trigger */                    m_dev.TriggerSet.Open(TriggerSourceEnum.Software);                    /* 设置图像格式 */                    using (IEnumParameter p = m_dev.ParameterCollection[ParametrizeNameSet.ImagePixelFormat])                    {                        p.SetValue("Mono8");                    }                    /* 设置曝光 */                    using (IFloatParameter p = m_dev.ParameterCollection[ParametrizeNameSet.ExposureTime])                    {                        p.SetValue(1000);                    }                    /* 设置增益 */                    using (IFloatParameter p = m_dev.ParameterCollection[ParametrizeNameSet.GainRaw])                    {                        p.SetValue(1.0);                    }                    /* 设置缓存个数为8（默认值为16） */                    m_dev.StreamGrabber.SetBufferCount(8);                    /* 注册码流回调事件 */                    m_dev.StreamGrabber.ImageGrabbed += OnImageGrabbed;                    /* 开启码流 */                    if (!m_dev.GrabUsingGrabLoopThread())                    {                        MessageBox.Show(@"开启码流失败");                        return;                    }                }            }            catch (Exception exception)            {                Catcher.Show(exception);            }        }        /* 码流数据回调 */        private void OnImageGrabbed(Object sender, GrabbedEventArgs e)        {            m_mutex.WaitOne();            m_frameList.Add(e.GrabResult.Clone());            m_mutex.ReleaseMutex();        }        /* 停止码流 */        public void btnClose()        {            try            {                if (m_dev == null)                {                    throw new InvalidOperationException("Device is invalid");                }                m_dev.StreamGrabber.ImageGrabbed -= OnImageGrabbed;         /* 反注册回调 */                m_dev.ShutdownGrab();                                       /* 停止码流 */                m_dev.Close();                                              /* 关闭相机 */            }            catch (Exception exception)            {                Catcher.Show(exception);            }        }        /* 窗口关闭 */        public void OnClosed(EventArgs e)        {            if (m_dev != null)            {                m_dev.Dispose();                m_dev = null;            }            m_bShowLoop = false;            renderThread.Join();        }        /* 执行软触发 */        public void SoftwareTrigger()        {            if (m_dev == null)            {                throw new InvalidOperationException("Device is invalid");            }            try            {                m_dev.ExecuteSoftwareTrigger();            }            catch (Exception exception)            {                Catcher.Show(exception);            }        }    }}