geboshi_V2/LeatherProject/LeatherApp/Device/CamerCardDev.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Timers;
using System.Windows.Forms;
using LeatherApp.Interface;
//using MvCamCtrl.NET;
using MvFGCtrlC.NET;
using Newtonsoft.Json.Linq;
using OpenCvSharp;
using OpenCvSharp.Dnn;
//using static ControllerDllCSharp.ClassLibControllerDll;
namespace LeatherApp.Device
{
    public class CamerCardDev : ABSCamerCardDev,IDisposable
    { 
        [DllImport("user32.dll")]
        [return: MarshalAs(UnmanagedType.Bool)]
        private static extern bool IsWindow(IntPtr hWnd);

        [DllImport("kernel32.dll", EntryPoint = "RtlCopyMemory", SetLastError = false)]
        public static extern void CopyMemory(IntPtr dest, IntPtr src, uint count);

     

        //
        private int scanIndex = 0; //实际拍照从1开始命名，因先加的1
        private string bmpSavePath;


        /// <summary>
        /// 曝光 3.00-10000.00
        /// </summary>
        public float ExposureTime { get; private set; }
        /// <summary>
        /// 增益 0-23.981199
        /// </summary>
        public float Gain { get; private set; }
        /// <summary>
        /// 帧率 0-429496.718750
        /// </summary>
        public float ResultingFrameRate { get; private set; }
        /// <summary>
        /// 图片大小
        /// </summary>
        public System.Drawing.Size size { get; private set; }
        /// <summary>
        /// 是否连续模式
        /// </summary>
        public bool isContinuousMode { get; private set; }
        /// <summary>
        /// 是否打开设备成功
        /// </summary>
        public bool IsInit { get; private set; } = false;
        //public string ErrInfo { get; private set; }
        //private System.Timers.Timer timer = new System.Timers.Timer();
        private int _scannerCardIndex = 0;//采集卡索引
        private int _scannerIndex=0;//相机索引(一个采集卡上可插多个相机)

        #region  
        public enum SAVE_IAMGE_TYPE
        {
            Image_Undefined = 0,            // ch:未定义的图像格式 | en:Undefined Image Type
            Image_Bmp = 1,            // ch:BMP图像格式 | en:BMP Image Type
            Image_Jpeg = 2,            // ch:JPEG图像格式 | en:Jpeg Image Type
        }

        // ch:判断用户自定义像素格式 | en:Determine custom pixel format
        public const Int32 CUSTOMER_PIXEL_FORMAT = unchecked((Int32)0x80000000);

        public const UInt32 TRIGGER_MODE_ON = 1;   // ch:触发模式开 | en:Trigger mode on
        public const UInt32 TRIGGER_MODE_OFF = 0;   // ch:触发模式关 | en:Trigger mode off

        CSystem m_cSystem = new CSystem();            // ch:操作采集卡 | en:Interface operations
        CInterface m_cInterface = null;                  // ch:操作采集卡和设备 | en:Interface and device operation
        CDevice m_cDevice = null;                     // ch:操作设备和流 | en:Device and stream operation
        CStream m_cStream = null;                     // ch:操作流和缓存 | en:Stream and buffer operation

        uint m_nInterfaceNum = 0;                   // ch:采集卡数量 | en:Interface number
        bool m_bIsIFOpen = false;                   // ch:采集卡是否打开 | en:Whether to open interface
        bool m_bIsDeviceOpen = false;               // ch:设备是否打开 | en:Whether to open device
        bool m_bIsGrabbing = false;                 // ch:是否在抓图 | en:Whether to start grabbing
        uint m_nTriggerMode = TRIGGER_MODE_OFF;     // ch:触发模式 | en:Trigger Mode

        bool m_bThreadState = false;        // ch:线程状态 | en:Thread state
        Thread m_hGrabThread = null;          // ch:取流线程 | en:Grabbing thread

        private static Object m_LockForSaveImage = new Object();              // ch:存图锁 | en:Lock for saving image
        IntPtr m_pDataBuf = IntPtr.Zero;                       // ch:数据缓存 | en:Data buffer
        uint m_nDataBufSize = 0;                             // ch:数据缓存大小 | en:Length of data buffer
        IntPtr m_pSaveImageBuf = IntPtr.Zero;                  // ch:图像缓存 | en:Image buffer
        uint m_nSaveImageBufSize = 0;                        // ch:图像缓存大小 | en:Length of image buffer
        MV_FG_INPUT_IMAGE_INFO m_stImageInfo = new MV_FG_INPUT_IMAGE_INFO();   // ch:图像信息 | en:Image info

        delegate void ShowDisplayError(int nRet);

        //显示图像控件句柄
        private PictureBox previewHwnd=null; 
        #endregion

        public CamerCardDev( )
        {  
        }
        public override bool open(int cardIndex = 0,int scannerIndex = 0)
        {
            if (IsInit) return true;

            //m_stIFInfoList = _m_stIFInfoList;
            _scannerCardIndex = cardIndex;
            _scannerIndex = scannerIndex;
            System.GC.Collect();
            try
            {
                int nRet = 0;
                bool bChanged = false;

                // ch:枚举采集卡 | en:Enum interface
                nRet = m_cSystem.UpdateInterfaceList(
                    CParamDefine.MV_FG_CAMERALINK_INTERFACE | CParamDefine.MV_FG_GEV_INTERFACE | CParamDefine.MV_FG_CXP_INTERFACE | CParamDefine.MV_FG_XoF_INTERFACE,
                    ref bChanged);
                if (CErrorCode.MV_FG_SUCCESS != nRet)
                {
                    WarningEvent?.Invoke(DateTime.Now,WarningEnum.High, "Enum Interface failed, ErrorCode:" + nRet.ToString("X"));
                    return false;
                }
                m_nInterfaceNum = 0;

                // ch:获取采集卡数量 | en:Get interface num
                nRet = m_cSystem.GetNumInterfaces(ref m_nInterfaceNum);
                if (CErrorCode.MV_FG_SUCCESS != nRet)
                {
                    WarningEvent?.Invoke(DateTime.Now,WarningEnum.High, "Get interface number failed, ErrorCode:" + nRet.ToString("X"));
                    return false;
                }
                if (0 == m_nInterfaceNum)
                {
                    WarningEvent?.Invoke(DateTime.Now,WarningEnum.High, "No interface found");
                    return false;
                }
                if (cardIndex + 1 > m_nInterfaceNum)
                {
                    WarningEvent?.Invoke(DateTime.Now,WarningEnum.High, "cardIndex > interface.count!");
                    return false;
                }


                //打开采集卡
                // 如果已经打开，则先关闭采集卡
                if (null != m_cInterface)
                {
                    m_cInterface.CloseInterface();
                    m_cInterface = null;
                }
                // ch:打开采集卡，获得采集卡句柄 | en:Open interface, get handle
                nRet = m_cSystem.OpenInterface((uint)cardIndex, out m_cInterface);
                if (CErrorCode.MV_FG_SUCCESS != nRet)
                {
                    WarningEvent?.Invoke(DateTime.Now,WarningEnum.High, "Open Interface failed, ErrorCode:" + nRet.ToString("X"));
                    return false;
                }
                m_bIsIFOpen = true;

                //====枚举设备
                uint nDeviceNum = 0;
                // ch:枚举采集卡上的相机 | en:Enum camera of interface
                nRet = m_cInterface.UpdateDeviceList(ref bChanged);
                if (CErrorCode.MV_FG_SUCCESS != nRet)
                {
                    WarningEvent?.Invoke(DateTime.Now,WarningEnum.High, "Update device list failed, ErrorCode:" + nRet.ToString("X"));
                    return false;
                }

                // ch:获取设备数量 | en:Get device number
                nRet = m_cInterface.GetNumDevices(ref nDeviceNum);
                if (CErrorCode.MV_FG_SUCCESS != nRet)
                {
                    WarningEvent?.Invoke(DateTime.Now,WarningEnum.High, "Get devices number failed, ErrorCode:" + nRet.ToString("X"));
                    return false;
                }
                if (0 == nDeviceNum)
                {
                    WarningEvent?.Invoke(DateTime.Now,WarningEnum.High, "No Device found");
                    return false;
                }
                if (scannerIndex + 1 > nDeviceNum)
                {
                    WarningEvent?.Invoke(DateTime.Now,WarningEnum.High, "scannerIndex > Device.count!");
                    return false;
                }

                //====打开设备
                // 如果已经打开，则先关闭通道
                if (null != m_cStream)
                {
                    m_cStream.CloseStream();
                    m_cStream = null;
                }
                // 如果已经打开，则先关闭设备
                if (null != m_cDevice)
                {
                    m_cDevice.CloseDevice();
                    m_cDevice = null;
                }
                // ch:打开设备，获得设备句柄 | en:Open device, get handle
                nRet = m_cInterface.OpenDevice((uint)scannerIndex, out m_cDevice);
                if (CErrorCode.MV_FG_SUCCESS != nRet)
                {
                    WarningEvent?.Invoke(DateTime.Now,WarningEnum.High, "Open device failed, ErrorCode:" + nRet.ToString("X"));
                    return false;
                }
                m_bIsDeviceOpen = true;
                 

                //=====打开触发模式
                CParam cDeviceParam = new CParam(m_cInterface); 
                // ch:打开触发模式 | en:Open Trigger Mode
                //nRet = cDeviceParam.SetEnumValue("TriggerMode", TRIGGER_MODE_ON);
                //if (CErrorCode.MV_FG_SUCCESS != nRet)
                //{
                //    WarningEvent?.Invoke(DateTime.Now,WarningEnum.High, "Turn on trigger mode failed, ErrorCode:" + nRet.ToString("X"));
                //    //关闭设备和采集卡
                //    m_cDevice.CloseDevice();
                //    m_bIsDeviceOpen = false;
                //    m_cInterface.CloseInterface();
                //    m_cInterface = null;
                //    return false;
                //}
                m_nTriggerMode = TRIGGER_MODE_ON;
                cDeviceParam.SetEnumValue("TriggerSource", (uint)0);//CC1=0

                // ch:注册回调函数 | en:Register image callback  //本类不使用回调，使用线程主动循环读取
                //ImageCallback = new MyCamera.cbOutputExdelegate(ImageCallbackFunc);
                //nRet = device.MV_CC_RegisterImageCallBackEx_NET(ImageCallback, IntPtr.Zero);
                //if (MyCamera.MV_OK != nRet)
                //{ 
                //    WarningEvent?.Invoke(DateTime.Now,WarningEnum.High, $"Register image callback failed! ({nRet})");
                //    return false;
                //}
                //开始采集
                //startGrab();
                //
                getParam();

                IsInit = true;
                //timer.Elapsed += Timer_Elapsed;
                //timer.Interval = 100;
                //timer.Enabled = true;
                return true;
            }
            catch (Exception ex)
            {
                WarningEvent?.Invoke(DateTime.Now,WarningEnum.High, ex.Message);
                return false;
            } 
        }
        public override void close()
        {
            if (!IsInit) return;

            try
            {
                IsInit = false;

                //=====关闭设备
                if (m_bThreadState)
                {
                    m_bThreadState = false;
                    m_hGrabThread.Join();
                }

                int nRet = 0; 
                if (m_bIsGrabbing)
                {
                    // ch:停止取流 | en:Stop Acquisition
                    nRet = m_cStream.StopAcquisition();
                    if (CErrorCode.MV_FG_SUCCESS != nRet)
                    {
                        WarningEvent?.Invoke(DateTime.Now,WarningEnum.Low,"Stop acquistion failed, ErrorCode:" + nRet.ToString("X"));
                    }
                    m_bIsGrabbing = false;
                }

                if (null != m_cStream)
                {
                    // ch:关闭流通道 | en:Close stream channel
                    nRet = m_cStream.CloseStream();
                    if (CErrorCode.MV_FG_SUCCESS != nRet)
                    {
                        WarningEvent?.Invoke(DateTime.Now,WarningEnum.Low,"Close stream channel failed, ErrorCode:" + nRet.ToString("X"));
                    }
                    m_cStream = null;
                }

                if (null != m_cDevice)
                {
                    // ch:关闭设备 | en:Close device
                    nRet = m_cDevice.CloseDevice();
                    if (CErrorCode.MV_FG_SUCCESS != nRet)
                    {
                        WarningEvent?.Invoke(DateTime.Now,WarningEnum.Low,"Close device failed, ErrorCode:" + nRet.ToString("X"));
                    }
                    m_cDevice = null;
                }

                m_bIsDeviceOpen = false; 
                if (IntPtr.Zero != m_pDataBuf)
                {
                    Marshal.FreeHGlobal(m_pDataBuf);
                    m_pDataBuf = IntPtr.Zero;
                }
                m_nDataBufSize = 0;

                if (IntPtr.Zero != m_pSaveImageBuf)
                {
                    Marshal.FreeHGlobal(m_pSaveImageBuf);
                    m_pSaveImageBuf = IntPtr.Zero;
                }
                m_nSaveImageBufSize = 0;

                //======关闭采集卡
                if (null == m_cInterface) 
                    return;  
                // ch:关闭采集卡 | en:Close interface
                nRet = m_cInterface.CloseInterface();
                //if (CErrorCode.MV_FG_SUCCESS != nRet)
                //{
                //    WarningEvent?.Invoke(DateTime.Now,WarningEnum.Low,"Close interface failed, ErrorCode:" + nRet.ToString("X"));
                //    return;
                //}
                m_cInterface = null;
                m_bIsIFOpen = false;
            }
            catch { }
        }
        /// <summary>
        /// 
        /// </summary>
        /// <param name="hwnd">显示图像控件句柄</param>
        /// <returns></returns>
        public override bool start(PictureBox preview_Hwnd,string bmp_save_path)
        { 
            if (!IsInit) return false; 

            this.previewHwnd= preview_Hwnd;
            this.bmpSavePath = bmp_save_path; 
            //开始采集
            startGrab();

            return true;
        }
        /// <summary>
        /// 停止采集
        /// </summary>
        public override void stop()
        {
            if (!IsInit) return; 

            try
            {
                if (false == m_bIsDeviceOpen || false == m_bIsGrabbing)
                {
                    return;
                }

                // ch:标志位设为false | en:Set flag bit false
                m_bThreadState = false;
                m_hGrabThread.Join();

                // ch:停止取流 | en:Stop Acquisition
                int nRet = m_cStream.StopAcquisition();
                if (CErrorCode.MV_FG_SUCCESS != nRet)
                {
                    //WarningEvent?.Invoke(DateTime.Now,WarningEnum.Low,"Stop acquistion failed, ErrorCode:" + nRet.ToString("X"));
                    return;
                }
                m_bIsGrabbing = false;

                // ch:关闭流通道 | en:Close stream channel
                nRet = m_cStream.CloseStream();
                if (CErrorCode.MV_FG_SUCCESS != nRet)
                {
                    //WarningEvent?.Invoke(DateTime.Now,WarningEnum.Low,"Close stream channel failed, ErrorCode:" + nRet.ToString("X"));
                }
                m_cStream = null;
            }
            catch
            {
                return;
            }
        }
        /// <summary>
        /// num 因拍了一张后回传的，当前已经是1了 
        /// </summary>
        /// <param name="num"></param>
        public override void resetScanIndex()
        {
            scanIndex = 0;//
        }
        #region private
        //开始采集
        private void startGrab()
        {
            if (!m_bIsDeviceOpen)
            {
                WarningEvent?.Invoke(DateTime.Now,WarningEnum.High, "Please open device first");
                return;
            }

            if (m_bIsGrabbing)
            {
                return;
            }

            // ch:获取流通道个数 | en:Get number of stream
            uint nStreamNum = 0;
            int nRet = m_cDevice.GetNumStreams(ref nStreamNum);
            if (CErrorCode.MV_FG_SUCCESS != nRet)
            {
                WarningEvent?.Invoke(DateTime.Now,WarningEnum.High, "Get streams number failed, ErrorCode:" + nRet.ToString("X"));
                return;
            }
            if (0 == nStreamNum)
            {
                WarningEvent?.Invoke(DateTime.Now,WarningEnum.High, "No valid stream channel");
                return;
            }

            // ch:打开流通道(目前只支持单个通道) | en:Open stream(Only a single stream is supported now)
            nRet = m_cDevice.OpenStream(0, out m_cStream);
            if (CErrorCode.MV_FG_SUCCESS != nRet)
            {
                WarningEvent?.Invoke(DateTime.Now,WarningEnum.High, "Open stream failed, ErrorCode:" + nRet.ToString("X"));
                return;
            }

            // ch:设置SDK内部缓存数量 | en:Set internal buffer number
            const uint nBufNum = 5;
            nRet = m_cStream.SetBufferNum(nBufNum);
            if (CErrorCode.MV_FG_SUCCESS != nRet)
            {
                WarningEvent?.Invoke(DateTime.Now,WarningEnum.High, "Set buffer number failed, ErrorCode:" + nRet.ToString("X"));
                return;
            }

            // ch:创建取流线程 | en:Create acquistion thread
            m_bThreadState = true;
            m_hGrabThread = new Thread(ReceiveThreadProcess);
            if (null == m_hGrabThread)
            {
                m_bThreadState = false;
                WarningEvent?.Invoke(DateTime.Now,WarningEnum.High, "Create thread failed");
                return;
            }
            m_hGrabThread.Start();

            // ch:开始取流 | en:Start Acquisition
            nRet = m_cStream.StartAcquisition();
            if (CErrorCode.MV_FG_SUCCESS != nRet)
            {
                m_bThreadState = false;
                WarningEvent?.Invoke(DateTime.Now,WarningEnum.High, "Start acquistion failed, ErrorCode:" + nRet.ToString("X"));
                return;
            }
            m_bIsGrabbing = true; 
        } 
        public void setPreviewWin(PictureBox preview_Hwnd)
        {
            this.previewHwnd = preview_Hwnd;
        }
        public void ReceiveThreadProcess()
        {
            CImageProcess cImgProc = new CImageProcess(m_cStream);
            MV_FG_BUFFER_INFO stFrameInfo = new MV_FG_BUFFER_INFO();          // ch:图像信息 | en:Frame info
            MV_FG_INPUT_IMAGE_INFO stDisplayInfo = new MV_FG_INPUT_IMAGE_INFO();   // ch:显示的图像信息 | en:Display frame info
            const uint nTimeout = 1000;
            int nRet = 0;

            while (m_bThreadState)
            {
                if (m_bIsGrabbing)
                {
                    // ch:获取一帧图像缓存信息 | en:Get one frame buffer's info
                    nRet = m_cStream.GetFrameBuffer(ref stFrameInfo, nTimeout);
                    if (CErrorCode.MV_FG_SUCCESS == nRet)
                    {
                        // 用于保存图片
                        lock (m_LockForSaveImage)
                        {
                            if (IntPtr.Zero == m_pDataBuf || m_nDataBufSize < stFrameInfo.nFilledSize)
                            {
                                if (IntPtr.Zero != m_pDataBuf)
                                {
                                    Marshal.FreeHGlobal(m_pDataBuf);
                                    m_pDataBuf = IntPtr.Zero;
                                }

                                m_pDataBuf = Marshal.AllocHGlobal((Int32)stFrameInfo.nFilledSize);
                                if (IntPtr.Zero == m_pDataBuf)
                                {
                                    m_cStream.ReleaseFrameBuffer(stFrameInfo);
                                    break;
                                }
                                m_nDataBufSize = stFrameInfo.nFilledSize;
                            }
                            CopyMemory(m_pDataBuf, stFrameInfo.pBuffer, stFrameInfo.nFilledSize);

                            m_stImageInfo.nWidth = stFrameInfo.nWidth;
                            m_stImageInfo.nHeight = stFrameInfo.nHeight;
                            m_stImageInfo.enPixelType = stFrameInfo.enPixelType;
                            m_stImageInfo.pImageBuf = m_pDataBuf;
                            m_stImageInfo.nImageBufLen = stFrameInfo.nFilledSize;

                            //
                            var imgbuff=SaveImage();
                            if(imgbuff != null)
                            {
                                scanIndex++;
                                //if (ScanEventPath != null)//Ge用的这个
                                //{
                                //    string imagpath = $"{this.bmpSavePath}{scanIndex}_dev{_scannerCardIndex}.bmp";
                                //    File.WriteAllBytes(imagpath, imgbuff);
                                //    ScanEventPath?.Invoke(scanIndex, imagpath, _scannerCardIndex);
                                //}
                                //else
                                {
                                    Mat mat = Mat.ImDecode(imgbuff);
                                    //string imagpath = $"{this.bmpSavePath}{scanIndex}_dev{_scannerCardIndex}.bmp";
                                    //File.WriteAllBytes(imagpath, imgbuff);
                                    ScanEvent?.Invoke(scanIndex, mat, _scannerCardIndex);
                                }
                            }
                        }

                        // 自定义格式不支持显示
                        if (RemoveCustomPixelFormats(stFrameInfo.enPixelType))
                        {
                            m_cStream.ReleaseFrameBuffer(stFrameInfo);
                            continue;
                        }

                        // 配置显示图像的参数
                        //pictureBox1显示 
                        if (this.previewHwnd != null && IsWindow(this.previewHwnd.Handle))
                        {
                            stDisplayInfo.nWidth = stFrameInfo.nWidth;
                            stDisplayInfo.nHeight = stFrameInfo.nHeight;
                            stDisplayInfo.enPixelType = stFrameInfo.enPixelType;
                            stDisplayInfo.pImageBuf = stFrameInfo.pBuffer;
                            stDisplayInfo.nImageBufLen = stFrameInfo.nFilledSize;
                            nRet = cImgProc.DisplayOneFrame(previewHwnd.Handle, ref stDisplayInfo);
                            if (CErrorCode.MV_FG_SUCCESS != nRet)
                            {
                                m_cStream.ReleaseFrameBuffer(stFrameInfo);
                                //this.Invoke(new ShowDisplayError(DisplayError), new object[] { nRet });
                                break;
                            }
                        }

                        m_cStream.ReleaseFrameBuffer(stFrameInfo);
                    }
                    else
                    {
                        if (TRIGGER_MODE_ON == m_nTriggerMode)
                        {
                            Thread.Sleep(5);
                        }
                    }
                }
                else
                {
                    Thread.Sleep(5);
                }
            }
        }
        private byte[] SaveImage(SAVE_IAMGE_TYPE enSaveImageType= SAVE_IAMGE_TYPE.Image_Bmp)
        {
            int nRet = 0;

            lock (m_LockForSaveImage)
            {
                if (IntPtr.Zero == m_pDataBuf) 
                    return null;// CErrorCode.MV_FG_ERR_NO_DATA; 

                if (RemoveCustomPixelFormats(m_stImageInfo.enPixelType)) 
                    return null;//CErrorCode.MV_FG_ERR_INVALID_VALUE; 

                uint nMaxImageLen = m_stImageInfo.nWidth * m_stImageInfo.nHeight * 4 + 2048; // 确保存图空间足够，包括图像头 
                if (IntPtr.Zero == m_pSaveImageBuf || m_nSaveImageBufSize < nMaxImageLen)
                {
                    if (IntPtr.Zero != m_pSaveImageBuf)
                    {
                        Marshal.FreeHGlobal(m_pSaveImageBuf);
                        m_pSaveImageBuf = IntPtr.Zero;
                    }

                    m_pSaveImageBuf = Marshal.AllocHGlobal((Int32)nMaxImageLen);
                    if (IntPtr.Zero == m_pSaveImageBuf) 
                        return null;//CErrorCode.MV_FG_ERR_OUT_OF_MEMORY; 
                    m_nSaveImageBufSize = nMaxImageLen;
                }

                CImageProcess cImgSave = new CImageProcess(m_cStream);
                System.DateTime currentTime = new System.DateTime();
                currentTime = System.DateTime.Now; 
                do
                {
                    if (SAVE_IAMGE_TYPE.Image_Bmp == enSaveImageType)
                    {
                        MV_FG_SAVE_BITMAP_INFO stBmpInfo = new MV_FG_SAVE_BITMAP_INFO();

                        stBmpInfo.stInputImageInfo = m_stImageInfo;
                        stBmpInfo.pBmpBuf = m_pSaveImageBuf;
                        stBmpInfo.nBmpBufSize = m_nSaveImageBufSize;
                        stBmpInfo.enCfaMethod = MV_FG_CFA_METHOD.MV_FG_CFA_METHOD_OPTIMAL;

                        // ch:保存BMP图像 | en:Save to BMP
                        nRet = cImgSave.SaveBitmap(ref stBmpInfo);
                        if (CErrorCode.MV_FG_SUCCESS != nRet) 
                            break; 

                        // ch:将图像数据保存到本地文件 | en:Save image data to local file
                        byte[] byteData = new byte[stBmpInfo.nBmpBufLen];
                        Marshal.Copy(stBmpInfo.pBmpBuf, byteData, 0, (int)stBmpInfo.nBmpBufLen);
                        
                        //保存文件
                        //string strName = "Image_w" + stBmpInfo.stInputImageInfo.nWidth.ToString() +
                        //    "_h" + stBmpInfo.stInputImageInfo.nHeight.ToString() + "_" + currentTime.Minute.ToString() +
                        //    currentTime.Second.ToString() + currentTime.Millisecond.ToString() + ".bmp"; 
                        //FileStream pFile = new FileStream(strName, FileMode.Create);
                        //if (null == pFile)
                        //{
                        //    nRet = CErrorCode.MV_FG_ERR_ERROR;
                        //    break;
                        //}
                        //pFile.Write(byteData, 0, byteData.Length);
                        //pFile.Close();

                        return byteData;
                    }
                    else if (SAVE_IAMGE_TYPE.Image_Jpeg == enSaveImageType)
                    {
                        MV_FG_SAVE_JPEG_INFO stJpgInfo = new MV_FG_SAVE_JPEG_INFO();

                        stJpgInfo.stInputImageInfo = m_stImageInfo;
                        stJpgInfo.pJpgBuf = m_pSaveImageBuf;
                        stJpgInfo.nJpgBufSize = m_nSaveImageBufSize;
                        stJpgInfo.nJpgQuality = 80;                   // JPG编码质量(0-100]
                        stJpgInfo.enCfaMethod = MV_FG_CFA_METHOD.MV_FG_CFA_METHOD_OPTIMAL;

                        // ch:保存JPG图像 | en:Save to JPG
                        nRet = cImgSave.SaveJpeg(ref stJpgInfo);
                        if (CErrorCode.MV_FG_SUCCESS != nRet) 
                            break; 

                        // ch:将图像数据保存到本地文件 | en:Save image data to local file
                        byte[] byteData = new byte[stJpgInfo.nJpgBufLen];
                        Marshal.Copy(stJpgInfo.pJpgBuf, byteData, 0, (int)stJpgInfo.nJpgBufLen);

                        //保存文件
                        //string strName = "Image_w" + stJpgInfo.stInputImageInfo.nWidth.ToString() +
                        //    "_h" + stJpgInfo.stInputImageInfo.nHeight.ToString() + "_" + currentTime.Minute.ToString() +
                        //    currentTime.Second.ToString() + currentTime.Millisecond.ToString() + ".jpg"; 
                        //FileStream pFile = new FileStream(strName, FileMode.Create);
                        //if (null == pFile)
                        //{
                        //    nRet = CErrorCode.MV_FG_ERR_ERROR;
                        //    break;
                        //}
                        //pFile.Write(byteData, 0, byteData.Length);
                        //pFile.Close();
                        return byteData;
                    }
                    else
                    {
                        nRet = CErrorCode.MV_FG_ERR_INVALID_PARAMETER;
                        break;
                    }
                } while (false);
            }

            return null;//
        }

        // ch:去除自定义的像素格式 | en:Remove custom pixel formats
        private bool RemoveCustomPixelFormats(MV_FG_PIXEL_TYPE enPixelFormat)
        {
            Int32 nResult = ((int)enPixelFormat) & CUSTOMER_PIXEL_FORMAT;
            if (CUSTOMER_PIXEL_FORMAT == nResult)
            {
                return true;
            }
            else
            {
                return false;
            }
        }

        #endregion
        public override double[] getFeatureRangeValue(string featureName)
        {
            switch (featureName)
            {
                case "ExposureTime":
                    return new double[2] { 0, 10000 };
                case "Gain":
                    return new double[2] { 0.01, 255 };
                default: return new double[0] { };
            }
        }
        public override void getParam()
        {
            if (!IsInit) return;

            CParam cDeviceParam = new CParam(m_cInterface);

            MV_FG_FLOATVALUE stParam=new MV_FG_FLOATVALUE();
            int nRet =  cDeviceParam.GetFloatValue("ExposureTime", ref stParam);
            if (nRet == CErrorCode.MV_FG_SUCCESS)  ExposureTime = stParam.fCurValue;

            nRet = cDeviceParam.GetFloatValue("Gain", ref stParam);
            if (nRet == CErrorCode.MV_FG_SUCCESS) Gain = stParam.fCurValue;

            nRet = cDeviceParam.GetFloatValue("ResultingFrameRate", ref stParam);
            if (nRet == CErrorCode.MV_FG_SUCCESS) ResultingFrameRate = stParam.fCurValue; 
        }
        /// <summary>
        /// 
        /// </summary>
        /// <param name="exposureTime">曝光</param>
        /// <param name="gain">增益</param>
        /// <param name="resultingFrameRate">帧率</param>
        public override bool setParam(float exposureTime, float gain =-1, float resultingFrameRate =-1)
        {
            if (!IsInit) return false;

            CParam cDeviceParam = new CParam(m_cInterface);
            //cDeviceParam.GetXmlFile()
            //cDeviceParam.GetNodeAccessMode
            //cDeviceParam.GetNodeInterfaceType 
            bool change = false;
            int nRet;
            if (exposureTime != ExposureTime && exposureTime != -1)
            {
                //device.MV_CC_SetEnumValue_NET("ExposureAuto", 0);
                //nRet = device.MV_CC_SetFloatValue_NET("ExposureTime", exposureTime);
                                
                nRet = cDeviceParam.SetEnumValue("ExposureAuto", (uint)0);
                if (CErrorCode.MV_FG_SUCCESS != nRet) 
                    WarningEvent?.Invoke(DateTime.Now,WarningEnum.Low, "ExposureTime SetEnumValue(\"ExposureAuto\") res=" + nRet);
                nRet = cDeviceParam.SetFloatValue("ExposureTime",  exposureTime);
                if (CErrorCode.MV_FG_SUCCESS != nRet) 
                    WarningEvent?.Invoke(DateTime.Now,WarningEnum.Low, "ExposureTime SetFloatValue(\"ExposureTime\") res=" + nRet);
                change = true;
            }

            if (gain != Gain && gain != -1)
            {
                //device.MV_CC_SetEnumValue_NET("GainAuto", 0);
                //nRet = device.MV_CC_SetFloatValue_NET("Gain", gain);
                cDeviceParam.SetEnumValue("GainAuto", (uint)0);
                cDeviceParam.SetFloatValue("Gain",  gain);
                change = true;
            }

            if (resultingFrameRate != ResultingFrameRate && resultingFrameRate != -1)
            { 
                cDeviceParam.SetFloatValue("AcquisitionFrameRate", resultingFrameRate);
                change = true;
            }

            //
            if (change)
                getParam();
            return change;
        }
 
        public void Dispose()
        {
            stop();
            close();
        }
        private byte[] bmp2bytes(Bitmap bmp)
        { 
            MemoryStream ms = new MemoryStream();
            bmp.Save(ms, System.Drawing.Imaging.ImageFormat.Bmp);
            byte[] bytes = ms.GetBuffer();  //byte[]   bytes=   ms.ToArray(); 这两句都可以，至于区别么，下面有解释 
            ms.Close();
            bmp.Dispose();
            return bytes;
        }
        private Bitmap bytes2bmp(byte[] bytes)
        { 
            MemoryStream ms1 = new MemoryStream(bytes);
            Bitmap bm = (Bitmap)Image.FromStream(ms1);
            ms1.Close();
            return bm;
        }
        public Bitmap read2Bmp(string path)
        {
            MemoryStream ms = new System.IO.MemoryStream(File.ReadAllBytes(path));
            Bitmap bmp = new Bitmap(ms);
            ms.Close();
            ms.Dispose();
            //FileStream fs = new FileStream(path, FileMode.Open);
            //byte[] bmpdata = new byte[fs.Length];
            //fs.Read(bmpdata, 0, bmpdata.Length); 
            //Bitmap bmp = new Bitmap(fs);
            //fs.Close();

            return bmp;

        }
 
    }
}