我这里所使用的都是C++的，所以就需要海康相机SDK的C++对应的接口
所以就需要找到对应的lib文件，include文件，以及对应的dll文件，聚齐这三者就可以对其进行相应的开发，如果有不知道怎么找的可以直接在公众号下留言，或者直接加我微信，我帮你来配置，要在对应的VS环境下配置，在这里就不必多讲这块，下面直接来SDK的二次开发源码
头文件
/******大华相机SDK抓取图像类****要考虑多个相机才有如下封装****/
class AFX_EXT_CLASS CDaHuaSDKGrabImage{public:CDaHuaSDKGrabImage();virtual ~CDaHuaSDKGrabImage();struct tagCameraInfo{CString m_szVendorName; //相机制造厂商名称CString m_szModelName; //相机型号CString m_szDeviceVersion; //固件版本号CString m_szSerialNumber; //相机序列号long m_lCameraID; //相机ID};static long GetCameraTotal();//获得在线相机总数public:/****************相机数据定义****************************/void GetImageSize(long &width, long &height); //获取图片尺寸QZ_Vision::CQtrImage &GetCurImage(); //获取当前图片信息/*****************相机采图操作***************************/bool InitDevice(); //初始化所有在线的设备bool SetCurrentIndex(long vNum); //按编号设置当前工作相机bool StartGrabbing(); //开始数据流bool GraphOneImage(); //抓取一幅图的bufferbool StopGrabbing(); //结束数据流bool CloseDevice(); //关闭设备void StartLiveImages(); //开启实时采集图像的buffervoid StopLiveImages(); //停止实时采集图像的buffer/*****************相机信息获取***************************/bool SetCameraID(CString szSerialNumber); //通过相机SN来为相机设置编号bool GetCameraInfo(long vCamID, tagCameraInfo&info); //获取某个相机的信息long GetGray(long vCamID, double vX, double vY); //获取某个位置的灰度值/******************相机参数设置获取**********************/bool SetAcquistionMode(); //设置采集模式，连续采集模式bool SetTriggerMode(); //设置触发模式，软触发，触发时间bool SetExposureTime(long vCamID, double vExpouseTime); //设置曝光时间，单位μsbool SetGain(long vCamID, double vGain); //设置增益bool GetExposureTime(long vCamID, double &rExpouseTime); //读取曝光时间，单位μsbool GetExposureTimeMinMax(long vCamID, double &rMinExp, double &rMaxExp);//读取最小最大曝光时间，单位μsbool SetPacketSizeTime(long vCamID, int vSize, int vDelayTime); //设置数据包大小和延时bool GetPacketSizeTime(long vCamID, unsigned int &rSize, unsigned int &rDelayTime); //获取数据包大小和延时/*************参数保存读取*******************/void WriteIni(CString szFileName); //Ini文件保存void ReadIni(CString szFileName); //Ini文件读取bool WriteParaByC(FILE *pFile); //C文件保存bool ReadParaByC(FILE *pFile); //C文件读取/*************图片变换***********************/void SetHorMirror(bool bEnable); //水平镜像开关void SetVerMirror(bool bEnable); //垂直镜像开关void SetTransPose(bool bEnable); //旋转180度protected:QZ_Vision::CQtrImage m_MyGraphImage[CAMERA_NUM_MAX]; //输入图像tagCameraInfo m_DahuaCameraInfo[CAMERA_NUM_MAX]; //获取到的相机信息long m_nOnlineNum; //相机连接个数long m_lCurrentIndex; //当前工作的相机编号Dahua::GenICam::IStreamSourcePtr m_streamSptr[CAMERA_NUM_MAX]; //数据流Dahua::GenICam::ICameraPtr m_pMVCamera[CAMERA_NUM_MAX]; //相机接口BOOL m_bStartGrabbing[CAMERA_NUM_MAX]; //是否开始抓图bool DeviceHorMirror(bool bMirror); //相机水平镜像bool DeviceVerMirror(bool bMirror); //相机垂直镜像bool m_bTransPose; //旋转180度开关bool OpenDevice(); //打开所有在线的设备bool m_bThreadStatus; //线程状态bool m_bThreadStart; //线程开启标志static UINT GrabberMethod(LPVOID pParam); //grabber thread};
源文件
const CString gszDahuaCameraLog = _T("..\\Log\\DahuaCameraLog\\");CDaHuaSDKGrabImage::CDaHuaSDKGrabImage(){for (int i = 0; i < CAMERA_NUM_MAX; i++){m_bStartGrabbing[i] = false;m_MyGraphImage[i].Initial(2592, 1944, QZ_Vision::ImageByte);m_MyGraphImage[i].SetBitmapInfo();m_DahuaCameraInfo[i].m_lCameraID = 0;m_DahuaCameraInfo[i].m_szVendorName = _T("");m_DahuaCameraInfo[i].m_szModelName = _T("");m_DahuaCameraInfo[i].m_szDeviceVersion = _T("");m_DahuaCameraInfo[i].m_szSerialNumber = _T("");}m_lCurrentIndex = -1; //当前工作相机序号 默认设为-1m_nOnlineNum = 0; //相机连接个数m_bTransPose = false;m_bThreadStart = false;m_bThreadStatus = false;}CDaHuaSDKGrabImage::~CDaHuaSDKGrabImage(){StopLiveImages();StopGrabbing();CloseDevice();}//获取当前在线设备总数long CDaHuaSDKGrabImage::GetCameraTotal(){//发现设备Dahua::GenICam::CSystem &systemObj = Dahua::GenICam::CSystem::getInstance();Dahua::Infra::TVector<Dahua::GenICam::ICameraPtr> vCameraPtrList;bool isDiscoverySuccess = systemObj.discovery(vCameraPtrList);if (!isDiscoverySuccess){return 0;}return vCameraPtrList.size();}//获取图片尺寸void CDaHuaSDKGrabImage::GetImageSize(long &width, long &height){if (m_lCurrentIndex < 0){width = m_MyGraphImage[0].GetWidth();height = m_MyGraphImage[0].GetHeight();return;}width = m_MyGraphImage[m_lCurrentIndex].GetWidth();height = m_MyGraphImage[m_lCurrentIndex].GetHeight();}//获取当前图片信息QZ_Vision::CQtrImage &CDaHuaSDKGrabImage::GetCurImage(){if (m_lCurrentIndex < 0){return m_MyGraphImage[0];}return m_MyGraphImage[m_lCurrentIndex];}//初始化所有在线的设备bool CDaHuaSDKGrabImage::InitDevice(){if (m_nOnlineNum > 0){return false;}//开启设备if (!OpenDevice()){CloseDevice();return false;}//设置采集模式if (!SetAcquistionMode()){CloseDevice();return false;}//设置软触发if (!SetTriggerMode()){CloseDevice();return false;}//开始拉流if (!StartGrabbing()){CloseDevice();return false;}return true;}//按编号设置当前工作相机bool CDaHuaSDKGrabImage::SetCurrentIndex(long vNum){if (vNum > -1 && vNum < m_nOnlineNum){m_lCurrentIndex = vNum;return true;}return false;}//开始数据流bool CDaHuaSDKGrabImage::StartGrabbing(){Dahua::GenICam::CSystem &systemObj = Dahua::GenICam::CSystem::getInstance();for (long i = 0; i < m_nOnlineNum; i++){m_bStartGrabbing[i] = false;if (m_pMVCamera[i]){//创建流对象m_streamSptr[i] = systemObj.createStreamSource(m_pMVCamera[i]);if (NULL != m_streamSptr[i]){bool isStartGrabbingSuccess = m_streamSptr[i]->startGrabbing();if (isStartGrabbingSuccess){m_bStartGrabbing[i] = true;}}}}return true;}//抓取一幅图的bufferbool CDaHuaSDKGrabImage::GraphOneImage(){if (m_lCurrentIndex < 0 || m_nOnlineNum < 1 || m_lCurrentIndex >= m_nOnlineNum){return false;}if (!m_streamSptr[m_lCurrentIndex] || !m_bStartGrabbing[m_lCurrentIndex]){return false;}//获取一帧 超时时间1000msDahua::GenICam::CFrame frame;bool isSuccess = m_streamSptr[m_lCurrentIndex]->getFrame(frame, 1000);if (isSuccess){//判断帧的有效性bool isValid = frame.valid();if (isValid){//m_CSMyGrabImage.Lock();//{if (m_MyGraphImage[m_lCurrentIndex].GetWidth() != frame.getImageWidth() ||m_MyGraphImage[m_lCurrentIndex].GetHeight() != frame.getImageHeight()){m_MyGraphImage[m_lCurrentIndex].Initial(frame.getImageWidth(), frame.getImageHeight(), QZ_Vision::ImageByte);m_MyGraphImage[m_lCurrentIndex].SetBitmapInfo();}void *pBuffer = const_cast<void *>(frame.getImage());if (m_bTransPose){m_MyGraphImage[m_lCurrentIndex].ImgTransposing(pBuffer);}else{m_MyGraphImage[m_lCurrentIndex].SetData(pBuffer);}//}//m_CSMyGrabImage.Unlock();return true;}}return false;}//结束数据流bool CDaHuaSDKGrabImage::StopGrabbing(){bool bRetStatus = true;for (long i = 0; i < m_nOnlineNum; i++){m_bStartGrabbing[i] = false;if (NULL != m_streamSptr[i]){bool bRet = m_streamSptr[i]->stopGrabbing();if (!bRet){bRetStatus = false;}}}return bRetStatus;}//关闭设备bool CDaHuaSDKGrabImage::CloseDevice(){for (int i = 0; i < CAMERA_NUM_MAX; i++){if (m_pMVCamera[i]){if (m_pMVCamera[i]->isConnected()){m_pMVCamera[i]->disConnect();}}}m_lCurrentIndex = -1; //当前工作相机序号 默认设为-1m_nOnlineNum = 0; //相机连接个数return true;}//开启实时采集图像的buffervoid CDaHuaSDKGrabImage::StartLiveImages(){if (!m_bThreadStatus){m_bThreadStart = true;AfxBeginThread((AFX_THREADPROC)GrabberMethod, (LPVOID)this);}}//停止实时采集图像的buffervoid CDaHuaSDKGrabImage::StopLiveImages(){if (m_bThreadStart){m_bThreadStart = false;while (m_bThreadStatus){MSG msg;while (::PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)){::TranslateMessage(&msg);::DispatchMessage(&msg);}}}}//通过相机SN来为相机设置编号bool CDaHuaSDKGrabImage::SetCameraID(CString szSerialNumber){for (long i = 0; i < m_nOnlineNum; i++){if (m_DahuaCameraInfo[i].m_szSerialNumber == szSerialNumber){m_DahuaCameraInfo[i].m_lCameraID = i;}}return true;}//获取某个相机的信息bool CDaHuaSDKGrabImage::GetCameraInfo(long vCamID, tagCameraInfo&info){if (vCamID < 0 || vCamID >= m_nOnlineNum){vCamID = 0;}info = m_DahuaCameraInfo[vCamID];return true;}//获取某个位置的灰度值long CDaHuaSDKGrabImage::GetGray(long vCamID, double vX, double vY){if (vCamID < 0 || vCamID >= m_nOnlineNum){vCamID = 0;}return m_MyGraphImage[vCamID].GetGray(vX, vY);
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