1. 创建对话框工程MultiCamera

工程文件MultiCamera.pro

#-------------------------------------------------
#
# Project created by QtCreator 2023-03-11T16:52:53
#
#-------------------------------------------------

QT       += core gui

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

TARGET = MultiCamera
TEMPLATE = app

# The following define makes your compiler emit warnings if you use
# any feature of Qt which has been marked as deprecated (the exact warnings
# depend on your compiler). Please consult the documentation of the
# deprecated API in order to know how to port your code away from it.
DEFINES += QT_DEPRECATED_WARNINGS

# You can also make your code fail to compile if you use deprecated APIs.
# In order to do so, uncomment the following line.
# You can also select to disable deprecated APIs only up to a certain version of Qt.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0

CONFIG += c++11

SOURCES += \
        main.cpp \
        multiplecameradlg.cpp

HEADERS += \
        multiplecameradlg.h

FORMS += \
        multiplecameradlg.ui

# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target

#-------------------------------------------------
#
# Project created by QtCreator 2023-03-11T16:52:53
#
#-------------------------------------------------

QT       += core gui

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

TARGET = MultiCamera
TEMPLATE = app

# The following define makes your compiler emit warnings if you use
# any feature of Qt which has been marked as deprecated (the exact warnings
# depend on your compiler). Please consult the documentation of the
# deprecated API in order to know how to port your code away from it.
DEFINES += QT_DEPRECATED_WARNINGS

# You can also make your code fail to compile if you use deprecated APIs.
# In order to do so, uncomment the following line.
# You can also select to disable deprecated APIs only up to a certain version of Qt.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0

CONFIG += c++11

SOURCES += \
        main.cpp \
        multiplecameradlg.cpp

HEADERS += \
        multiplecameradlg.h

FORMS += \
        multiplecameradlg.ui

# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target
  1. 添加海康相机类CMvCamera

将官方例子程序中的CMvCamera类实现的两个文件拷贝过来

CMvCamera.h

/************************************************************************/
/* 以C++接口为基础，对常用函数进行二次封装，方便用户使用                */
/************************************************************************/

#ifndef _MV_CAMERA_H_
#define _MV_CAMERA_H_

#include "MvCameraControl.h"
#include <string.h>

#ifndef MV_NULL
#define MV_NULL    0
#endif

class CMvCamera
{
public:
    CMvCamera();
    ~CMvCamera();

    // ch:获取SDK版本号 | en:Get SDK Version
    static int GetSDKVersion();

    // ch:枚举设备 | en:Enumerate Device
    static int EnumDevices(unsigned int nTLayerType, MV_CC_DEVICE_INFO_LIST* pstDevList);

    // ch:判断设备是否可达 | en:Is the device accessible
    static bool IsDeviceAccessible(MV_CC_DEVICE_INFO* pstDevInfo, unsigned int nAccessMode);

    // ch:打开设备 | en:Open Device
    int Open(MV_CC_DEVICE_INFO* pstDeviceInfo);

    // ch:关闭设备 | en:Close Device
    int Close();

    // ch:判断相机是否处于连接状态 | en:Is The Device Connected
    bool IsDeviceConnected();

    // ch:注册图像数据回调 | en:Register Image Data CallBack
    int RegisterImageCallBack(void(__stdcall* cbOutput)(unsigned char * pData, MV_FRAME_OUT_INFO_EX* pFrameInfo, void* pUser), void* pUser);

    // ch:开启抓图 | en:Start Grabbing
    int StartGrabbing();

    // ch:停止抓图 | en:Stop Grabbing
    int StopGrabbing();

    // ch:主动获取一帧图像数据 | en:Get one frame initiatively
    int GetImageBuffer(MV_FRAME_OUT* pFrame, int nMsec);

    // ch:释放图像缓存 | en:Free image buffer
    int FreeImageBuffer(MV_FRAME_OUT* pFrame);

    // ch:显示一帧图像 | en:Display one frame image
    int DisplayOneFrame(MV_DISPLAY_FRAME_INFO* pDisplayInfo);

    // ch:设置SDK内部图像缓存节点个数 | en:Set the number of the internal image cache nodes in SDK
    int SetImageNodeNum(unsigned int nNum);

    // ch:获取设备信息 | en:Get device information
    int GetDeviceInfo(MV_CC_DEVICE_INFO* pstDevInfo);

    // ch:获取GEV相机的统计信息 | en:Get detect info of GEV camera
    int GetGevAllMatchInfo(MV_MATCH_INFO_NET_DETECT* pMatchInfoNetDetect);

    // ch:获取U3V相机的统计信息 | en:Get detect info of U3V camera
    int GetU3VAllMatchInfo(MV_MATCH_INFO_USB_DETECT* pMatchInfoUSBDetect);

    // ch:获取和设置Int型参数，如 Width和Height，详细内容参考SDK安装目录下的 MvCameraNode.xlsx 文件
    // en:Get Int type parameters, such as Width and Height, for details please refer to MvCameraNode.xlsx file under SDK installation directory
    int GetIntValue(IN const char* strKey, OUT MVCC_INTVALUE_EX *pIntValue);
    int SetIntValue(IN const char* strKey, IN int64_t nValue);

    // ch:获取和设置Enum型参数，如 PixelFormat，详细内容参考SDK安装目录下的 MvCameraNode.xlsx 文件
    // en:Get Enum type parameters, such as PixelFormat, for details please refer to MvCameraNode.xlsx file under SDK installation directory
    int GetEnumValue(IN const char* strKey, OUT MVCC_ENUMVALUE *pEnumValue);
    int SetEnumValue(IN const char* strKey, IN unsigned int nValue);
    int SetEnumValueByString(IN const char* strKey, IN const char* sValue);

    // ch:获取和设置Float型参数，如 ExposureTime和Gain，详细内容参考SDK安装目录下的 MvCameraNode.xlsx 文件
    // en:Get Float type parameters, such as ExposureTime and Gain, for details please refer to MvCameraNode.xlsx file under SDK installation directory
    int GetFloatValue(IN const char* strKey, OUT MVCC_FLOATVALUE *pFloatValue);
    int SetFloatValue(IN const char* strKey, IN float fValue);

    // ch:获取和设置Bool型参数，如 ReverseX，详细内容参考SDK安装目录下的 MvCameraNode.xlsx 文件
    // en:Get Bool type parameters, such as ReverseX, for details please refer to MvCameraNode.xlsx file under SDK installation directory
    int GetBoolValue(IN const char* strKey, OUT bool *pbValue);
    int SetBoolValue(IN const char* strKey, IN bool bValue);

    // ch:获取和设置String型参数，如 DeviceUserID，详细内容参考SDK安装目录下的 MvCameraNode.xlsx 文件UserSetSave
    // en:Get String type parameters, such as DeviceUserID, for details please refer to MvCameraNode.xlsx file under SDK installation directory
    int GetStringValue(IN const char* strKey, MVCC_STRINGVALUE *pStringValue);
    int SetStringValue(IN const char* strKey, IN const char * strValue);

    // ch:执行一次Command型命令，如 UserSetSave，详细内容参考SDK安装目录下的 MvCameraNode.xlsx 文件
    // en:Execute Command once, such as UserSetSave, for details please refer to MvCameraNode.xlsx file under SDK installation directory
    int CommandExecute(IN const char* strKey);

    // ch:探测网络最佳包大小(只对GigE相机有效) | en:Detection network optimal package size(It only works for the GigE camera)
    int GetOptimalPacketSize(unsigned int* pOptimalPacketSize);

    // ch:注册消息异常回调 | en:Register Message Exception CallBack
    int RegisterExceptionCallBack(void(__stdcall* cbException)(unsigned int nMsgType, void* pUser), void* pUser);

    // ch:注册单个事件回调 | en:Register Event CallBack
    int RegisterEventCallBack(const char* pEventName, void(__stdcall* cbEvent)(MV_EVENT_OUT_INFO * pEventInfo, void* pUser), void* pUser);

    // ch:强制IP | en:Force IP
    int ForceIp(unsigned int nIP, unsigned int nSubNetMask, unsigned int nDefaultGateWay);

    // ch:配置IP方式 | en:IP configuration method
    int SetIpConfig(unsigned int nType);

    // ch:设置网络传输模式 | en:Set Net Transfer Mode
    int SetNetTransMode(unsigned int nType);

    // ch:像素格式转换 | en:Pixel format conversion
    int ConvertPixelType(MV_CC_PIXEL_CONVERT_PARAM* pstCvtParam);

    // ch:保存图片 | en:save image
    int SaveImage(MV_SAVE_IMAGE_PARAM_EX* pstParam);
    int SaveImageToFile(MV_SAVE_IMG_TO_FILE_PARAM* pstSaveFileParam);

private:

    void*               m_hDevHandle;
    MV_CC_DEVICE_INFO    m_stDeviceInfo;

};

#endif//_MV_CAMERA_H_


/************************************************************************/
/* 以C++接口为基础，对常用函数进行二次封装，方便用户使用                */
/************************************************************************/

#ifndef _MV_CAMERA_H_
#define _MV_CAMERA_H_

#include "MvCameraControl.h"
#include <string.h>

#ifndef MV_NULL
#define MV_NULL    0
#endif

class CMvCamera
{
public:
    CMvCamera();
    ~CMvCamera();

    // ch:获取SDK版本号 | en:Get SDK Version
    static int GetSDKVersion();

    // ch:枚举设备 | en:Enumerate Device
    static int EnumDevices(unsigned int nTLayerType, MV_CC_DEVICE_INFO_LIST* pstDevList);

    // ch:判断设备是否可达 | en:Is the device accessible
    static bool IsDeviceAccessible(MV_CC_DEVICE_INFO* pstDevInfo, unsigned int nAccessMode);

    // ch:打开设备 | en:Open Device
    int Open(MV_CC_DEVICE_INFO* pstDeviceInfo);

    // ch:关闭设备 | en:Close Device
    int Close();

    // ch:判断相机是否处于连接状态 | en:Is The Device Connected
    bool IsDeviceConnected();

    // ch:注册图像数据回调 | en:Register Image Data CallBack
    int RegisterImageCallBack(void(__stdcall* cbOutput)(unsigned char * pData, MV_FRAME_OUT_INFO_EX* pFrameInfo, void* pUser), void* pUser);

    // ch:开启抓图 | en:Start Grabbing
    int StartGrabbing();

    // ch:停止抓图 | en:Stop Grabbing
    int StopGrabbing();

    // ch:主动获取一帧图像数据 | en:Get one frame initiatively
    int GetImageBuffer(MV_FRAME_OUT* pFrame, int nMsec);

    // ch:释放图像缓存 | en:Free image buffer
    int FreeImageBuffer(MV_FRAME_OUT* pFrame);

    // ch:显示一帧图像 | en:Display one frame image
    int DisplayOneFrame(MV_DISPLAY_FRAME_INFO* pDisplayInfo);

    // ch:设置SDK内部图像缓存节点个数 | en:Set the number of the internal image cache nodes in SDK
    int SetImageNodeNum(unsigned int nNum);

    // ch:获取设备信息 | en:Get device information
    int GetDeviceInfo(MV_CC_DEVICE_INFO* pstDevInfo);

    // ch:获取GEV相机的统计信息 | en:Get detect info of GEV camera
    int GetGevAllMatchInfo(MV_MATCH_INFO_NET_DETECT* pMatchInfoNetDetect);

    // ch:获取U3V相机的统计信息 | en:Get detect info of U3V camera
    int GetU3VAllMatchInfo(MV_MATCH_INFO_USB_DETECT* pMatchInfoUSBDetect);

    // ch:获取和设置Int型参数，如 Width和Height，详细内容参考SDK安装目录下的 MvCameraNode.xlsx 文件
    // en:Get Int type parameters, such as Width and Height, for details please refer to MvCameraNode.xlsx file under SDK installation directory
    int GetIntValue(IN const char* strKey, OUT MVCC_INTVALUE_EX *pIntValue);
    int SetIntValue(IN const char* strKey, IN int64_t nValue);

    // ch:获取和设置Enum型参数，如 PixelFormat，详细内容参考SDK安装目录下的 MvCameraNode.xlsx 文件
    // en:Get Enum type parameters, such as PixelFormat, for details please refer to MvCameraNode.xlsx file under SDK installation directory
    int GetEnumValue(IN const char* strKey, OUT MVCC_ENUMVALUE *pEnumValue);
    int SetEnumValue(IN const char* strKey, IN unsigned int nValue);
    int SetEnumValueByString(IN const char* strKey, IN const char* sValue);

    // ch:获取和设置Float型参数，如 ExposureTime和Gain，详细内容参考SDK安装目录下的 MvCameraNode.xlsx 文件
    // en:Get Float type parameters, such as ExposureTime and Gain, for details please refer to MvCameraNode.xlsx file under SDK installation directory
    int GetFloatValue(IN const char* strKey, OUT MVCC_FLOATVALUE *pFloatValue);
    int SetFloatValue(IN const char* strKey, IN float fValue);

    // ch:获取和设置Bool型参数，如 ReverseX，详细内容参考SDK安装目录下的 MvCameraNode.xlsx 文件
    // en:Get Bool type parameters, such as ReverseX, for details please refer to MvCameraNode.xlsx file under SDK installation directory
    int GetBoolValue(IN const char* strKey, OUT bool *pbValue);
    int SetBoolValue(IN const char* strKey, IN bool bValue);

    // ch:获取和设置String型参数，如 DeviceUserID，详细内容参考SDK安装目录下的 MvCameraNode.xlsx 文件UserSetSave
    // en:Get String type parameters, such as DeviceUserID, for details please refer to MvCameraNode.xlsx file under SDK installation directory
    int GetStringValue(IN const char* strKey, MVCC_STRINGVALUE *pStringValue);
    int SetStringValue(IN const char* strKey, IN const char * strValue);

    // ch:执行一次Command型命令，如 UserSetSave，详细内容参考SDK安装目录下的 MvCameraNode.xlsx 文件
    // en:Execute Command once, such as UserSetSave, for details please refer to MvCameraNode.xlsx file under SDK installation directory
    int CommandExecute(IN const char* strKey);

    // ch:探测网络最佳包大小(只对GigE相机有效) | en:Detection network optimal package size(It only works for the GigE camera)
    int GetOptimalPacketSize(unsigned int* pOptimalPacketSize);

    // ch:注册消息异常回调 | en:Register Message Exception CallBack
    int RegisterExceptionCallBack(void(__stdcall* cbException)(unsigned int nMsgType, void* pUser), void* pUser);

    // ch:注册单个事件回调 | en:Register Event CallBack
    int RegisterEventCallBack(const char* pEventName, void(__stdcall* cbEvent)(MV_EVENT_OUT_INFO * pEventInfo, void* pUser), void* pUser);

    // ch:强制IP | en:Force IP
    int ForceIp(unsigned int nIP, unsigned int nSubNetMask, unsigned int nDefaultGateWay);

    // ch:配置IP方式 | en:IP configuration method
    int SetIpConfig(unsigned int nType);

    // ch:设置网络传输模式 | en:Set Net Transfer Mode
    int SetNetTransMode(unsigned int nType);

    // ch:像素格式转换 | en:Pixel format conversion
    int ConvertPixelType(MV_CC_PIXEL_CONVERT_PARAM* pstCvtParam);

    // ch:保存图片 | en:save image
    int SaveImage(MV_SAVE_IMAGE_PARAM_EX* pstParam);
    int SaveImageToFile(MV_SAVE_IMG_TO_FILE_PARAM* pstSaveFileParam);

private:

    void*               m_hDevHandle;
    MV_CC_DEVICE_INFO    m_stDeviceInfo;

};

#endif//_MV_CAMERA_H_

CMvCamera.cpp

#include "MvCamera.h"

CMvCamera::CMvCamera()
{
    m_hDevHandle = MV_NULL;
}

CMvCamera::~CMvCamera()
{
    if (m_hDevHandle)
    {
        MV_CC_DestroyHandle(m_hDevHandle);
        m_hDevHandle    = MV_NULL;
    }
}

// ch:获取SDK版本号 | en:Get SDK Version
int CMvCamera::GetSDKVersion()
{
    return MV_CC_GetSDKVersion();
}

// ch:枚举设备 | en:Enumerate Device
int CMvCamera::EnumDevices(unsigned int nTLayerType, MV_CC_DEVICE_INFO_LIST* pstDevList)
{
    return MV_CC_EnumDevices(nTLayerType, pstDevList);
}

// ch:判断设备是否可达 | en:Is the device accessible
bool CMvCamera::IsDeviceAccessible(MV_CC_DEVICE_INFO* pstDevInfo, unsigned int nAccessMode)
{
    return MV_CC_IsDeviceAccessible(pstDevInfo, nAccessMode);
}

// ch:打开设备 | en:Open Device
int CMvCamera::Open(MV_CC_DEVICE_INFO* pstDeviceInfo)
{
    if (MV_NULL == pstDeviceInfo)
    {
        return MV_E_PARAMETER;
    }

    if (m_hDevHandle)
    {
        return MV_E_CALLORDER;
    }

    int nRet  = MV_CC_CreateHandle(&m_hDevHandle, pstDeviceInfo);
    if (MV_OK != nRet)
    {
        return nRet;
    }

    nRet = MV_CC_OpenDevice(m_hDevHandle);
    if (MV_OK != nRet)
    {
        MV_CC_DestroyHandle(m_hDevHandle);
        m_hDevHandle = MV_NULL;
    }

    memcpy(&m_stDeviceInfo, pstDeviceInfo, sizeof(MV_CC_DEVICE_INFO));

    return nRet;
}

// ch:关闭设备 | en:Close Device
int CMvCamera::Close()
{
    if (MV_NULL == m_hDevHandle)
    {
        return MV_E_HANDLE;
    }

    MV_CC_CloseDevice(m_hDevHandle);

    int nRet = MV_CC_DestroyHandle(m_hDevHandle);
    m_hDevHandle = MV_NULL;

    return nRet;
}

// ch:判断相机是否处于连接状态 | en:Is The Device Connected
bool CMvCamera::IsDeviceConnected()
{
    return MV_CC_IsDeviceConnected(m_hDevHandle);
}

// ch:注册图像数据回调 | en:Register Image Data CallBack
int CMvCamera::RegisterImageCallBack(void(__stdcall* cbOutput)(unsigned char * pData, MV_FRAME_OUT_INFO_EX* pFrameInfo, void* pUser), void* pUser)
{
    return MV_CC_RegisterImageCallBackEx(m_hDevHandle, cbOutput, pUser);
}

// ch:开启抓图 | en:Start Grabbing
int CMvCamera::StartGrabbing()
{
    return MV_CC_StartGrabbing(m_hDevHandle);
}

// ch:停止抓图 | en:Stop Grabbing
int CMvCamera::StopGrabbing()
{
    return MV_CC_StopGrabbing(m_hDevHandle);
}

// ch:主动获取一帧图像数据 | en:Get one frame initiatively
int CMvCamera::GetImageBuffer(MV_FRAME_OUT* pFrame, int nMsec)
{
    return MV_CC_GetImageBuffer(m_hDevHandle, pFrame, nMsec);
}

// ch:释放图像缓存 | en:Free image buffer
int CMvCamera::FreeImageBuffer(MV_FRAME_OUT* pFrame)
{
    return MV_CC_FreeImageBuffer(m_hDevHandle, pFrame);
}

// ch:设置显示窗口句柄 | en:Set Display Window Handle
int CMvCamera::DisplayOneFrame(MV_DISPLAY_FRAME_INFO* pDisplayInfo)
{
    return MV_CC_DisplayOneFrame(m_hDevHandle, pDisplayInfo);
}

// ch:设置SDK内部图像缓存节点个数 | en:Set the number of the internal image cache nodes in SDK
int CMvCamera::SetImageNodeNum(unsigned int nNum)
{
    return MV_CC_SetImageNodeNum(m_hDevHandle, nNum);
}

// ch:获取设备信息 | en:Get device information
int CMvCamera::GetDeviceInfo(MV_CC_DEVICE_INFO* pstDevInfo)
{
    if (pstDevInfo)
    {
        memcpy(pstDevInfo, &m_stDeviceInfo, sizeof(MV_CC_DEVICE_INFO));

        return MV_OK;
    }

    return MV_E_PARAMETER;
}

// ch:获取GEV相机的统计信息 | en:Get detect info of GEV camera
int CMvCamera::GetGevAllMatchInfo(MV_MATCH_INFO_NET_DETECT* pMatchInfoNetDetect)
{
    if (MV_NULL == pMatchInfoNetDetect)
    {
        return MV_E_PARAMETER;
    }

    MV_CC_DEVICE_INFO stDevInfo = {0};
    GetDeviceInfo(&stDevInfo);
    if (stDevInfo.nTLayerType != MV_GIGE_DEVICE)
    {
        return MV_E_SUPPORT;
    }

    MV_ALL_MATCH_INFO struMatchInfo = {0};

    struMatchInfo.nType = MV_MATCH_TYPE_NET_DETECT;
    struMatchInfo.pInfo = pMatchInfoNetDetect;
    struMatchInfo.nInfoSize = sizeof(MV_MATCH_INFO_NET_DETECT);
    memset(struMatchInfo.pInfo, 0, sizeof(MV_MATCH_INFO_NET_DETECT));

    return MV_CC_GetAllMatchInfo(m_hDevHandle, &struMatchInfo);
}

// ch:获取U3V相机的统计信息 | en:Get detect info of U3V camera
int CMvCamera::GetU3VAllMatchInfo(MV_MATCH_INFO_USB_DETECT* pMatchInfoUSBDetect)
{
    if (MV_NULL == pMatchInfoUSBDetect)
    {
        return MV_E_PARAMETER;
    }

    MV_CC_DEVICE_INFO stDevInfo = {0};
    GetDeviceInfo(&stDevInfo);
    if (stDevInfo.nTLayerType != MV_USB_DEVICE)
    {
        return MV_E_SUPPORT;
    }

    MV_ALL_MATCH_INFO struMatchInfo = {0};

    struMatchInfo.nType = MV_MATCH_TYPE_USB_DETECT;
    struMatchInfo.pInfo = pMatchInfoUSBDetect;
    struMatchInfo.nInfoSize = sizeof(MV_MATCH_INFO_USB_DETECT);
    memset(struMatchInfo.pInfo, 0, sizeof(MV_MATCH_INFO_USB_DETECT));

    return MV_CC_GetAllMatchInfo(m_hDevHandle, &struMatchInfo);
}

// ch:获取和设置Int型参数，如 Width和Height，详细内容参考SDK安装目录下的 MvCameraNode.xlsx 文件
// en:Get Int type parameters, such as Width and Height, for details please refer to MvCameraNode.xlsx file under SDK installation directory
int CMvCamera::GetIntValue(IN const char* strKey, OUT MVCC_INTVALUE_EX *pIntValue)
{
    return MV_CC_GetIntValueEx(m_hDevHandle, strKey, pIntValue);
}

int CMvCamera::SetIntValue(IN const char* strKey, IN int64_t nValue)
{
    return MV_CC_SetIntValueEx(m_hDevHandle, strKey, nValue);
}

// ch:获取和设置Enum型参数，如 PixelFormat，详细内容参考SDK安装目录下的 MvCameraNode.xlsx 文件
// en:Get Enum type parameters, such as PixelFormat, for details please refer to MvCameraNode.xlsx file under SDK installation directory
int CMvCamera::GetEnumValue(IN const char* strKey, OUT MVCC_ENUMVALUE *pEnumValue)
{
    return MV_CC_GetEnumValue(m_hDevHandle, strKey, pEnumValue);
}

int CMvCamera::SetEnumValue(IN const char* strKey, IN unsigned int nValue)
{
    return MV_CC_SetEnumValue(m_hDevHandle, strKey, nValue);
}

int CMvCamera::SetEnumValueByString(IN const char* strKey, IN const char* sValue)
{
    return MV_CC_SetEnumValueByString(m_hDevHandle, strKey, sValue);
}

// ch:获取和设置Float型参数，如 ExposureTime和Gain，详细内容参考SDK安装目录下的 MvCameraNode.xlsx 文件
// en:Get Float type parameters, such as ExposureTime and Gain, for details please refer to MvCameraNode.xlsx file under SDK installation directory
int CMvCamera::GetFloatValue(IN const char* strKey, OUT MVCC_FLOATVALUE *pFloatValue)
{
    return MV_CC_GetFloatValue(m_hDevHandle, strKey, pFloatValue);
}

int CMvCamera::SetFloatValue(IN const char* strKey, IN float fValue)
{
    return MV_CC_SetFloatValue(m_hDevHandle, strKey, fValue);
}

// ch:获取和设置Bool型参数，如 ReverseX，详细内容参考SDK安装目录下的 MvCameraNode.xlsx 文件
// en:Get Bool type parameters, such as ReverseX, for details please refer to MvCameraNode.xlsx file under SDK installation directory
int CMvCamera::GetBoolValue(IN const char* strKey, OUT bool *pbValue)
{
    return MV_CC_GetBoolValue(m_hDevHandle, strKey, pbValue);
}

int CMvCamera::SetBoolValue(IN const char* strKey, IN bool bValue)
{
    return MV_CC_SetBoolValue(m_hDevHandle, strKey, bValue);
}

// ch:获取和设置String型参数，如 DeviceUserID，详细内容参考SDK安装目录下的 MvCameraNode.xlsx 文件UserSetSave
// en:Get String type parameters, such as DeviceUserID, for details please refer to MvCameraNode.xlsx file under SDK installation directory
int CMvCamera::GetStringValue(IN const char* strKey, MVCC_STRINGVALUE *pStringValue)
{
    return MV_CC_GetStringValue(m_hDevHandle, strKey, pStringValue);
}

int CMvCamera::SetStringValue(IN const char* strKey, IN const char* strValue)
{
    return MV_CC_SetStringValue(m_hDevHandle, strKey, strValue);
}

// ch:执行一次Command型命令，如 UserSetSave，详细内容参考SDK安装目录下的 MvCameraNode.xlsx 文件
// en:Execute Command once, such as UserSetSave, for details please refer to MvCameraNode.xlsx file under SDK installation directory
int CMvCamera::CommandExecute(IN const char* strKey)
{
    return MV_CC_SetCommandValue(m_hDevHandle, strKey);
}

// ch:探测网络最佳包大小(只对GigE相机有效) | en:Detection network optimal package size(It only works for the GigE camera)
int CMvCamera::GetOptimalPacketSize(unsigned int* pOptimalPacketSize)
{
    if (MV_NULL == pOptimalPacketSize)
    {
        return MV_E_PARAMETER;
    }

    int nRet = MV_CC_GetOptimalPacketSize(m_hDevHandle);
    if (nRet < MV_OK)
    {
        return nRet;
    }

    *pOptimalPacketSize = (unsigned int)nRet;

    return MV_OK;
}

// ch:注册消息异常回调 | en:Register Message Exception CallBack
int CMvCamera::RegisterExceptionCallBack(void(__stdcall* cbException)(unsigned int nMsgType, void* pUser),void* pUser)
{
    return MV_CC_RegisterExceptionCallBack(m_hDevHandle, cbException, pUser);
}

// ch:注册单个事件回调 | en:Register Event CallBack
int CMvCamera::RegisterEventCallBack(const char* pEventName, void(__stdcall* cbEvent)(MV_EVENT_OUT_INFO * pEventInfo, void* pUser), void* pUser)
{
    return MV_CC_RegisterEventCallBackEx(m_hDevHandle, pEventName, cbEvent, pUser);
}

// ch:强制IP | en:Force IP
int CMvCamera::ForceIp(unsigned int nIP, unsigned int nSubNetMask, unsigned int nDefaultGateWay)
{
    return MV_GIGE_ForceIpEx(m_hDevHandle, nIP, nSubNetMask, nDefaultGateWay);
}

// ch:配置IP方式 | en:IP configuration method
int CMvCamera::SetIpConfig(unsigned int nType)
{
    return MV_GIGE_SetIpConfig(m_hDevHandle, nType);
}

// ch:设置网络传输模式 | en:Set Net Transfer Mode
int CMvCamera::SetNetTransMode(unsigned int nType)
{
    return MV_GIGE_SetNetTransMode(m_hDevHandle, nType);
}

// ch:像素格式转换 | en:Pixel format conversion
int CMvCamera::ConvertPixelType(MV_CC_PIXEL_CONVERT_PARAM* pstCvtParam)
{
    return MV_CC_ConvertPixelType(m_hDevHandle, pstCvtParam);
}

// ch:保存图片 | en:save image
int CMvCamera::SaveImage(MV_SAVE_IMAGE_PARAM_EX* pstParam)
{
    return MV_CC_SaveImageEx2(m_hDevHandle, pstParam);
}

int CMvCamera::SaveImageToFile(MV_SAVE_IMG_TO_FILE_PARAM* pstSaveFileParam)
{
    return MV_CC_SaveImageToFile(m_hDevHandle, pstSaveFileParam);
}



#include "MvCamera.h"

CMvCamera::CMvCamera()
{
    m_hDevHandle = MV_NULL;
}

CMvCamera::~CMvCamera()
{
    if (m_hDevHandle)
    {
        MV_CC_DestroyHandle(m_hDevHandle);
        m_hDevHandle    = MV_NULL;
    }
}

// ch:获取SDK版本号 | en:Get SDK Version
int CMvCamera::GetSDKVersion()
{
    return MV_CC_GetSDKVersion();
}

// ch:枚举设备 | en:Enumerate Device
int CMvCamera::EnumDevices(unsigned int nTLayerType, MV_CC_DEVICE_INFO_LIST* pstDevList)
{
    return MV_CC_EnumDevices(nTLayerType, pstDevList);
}

// ch:判断设备是否可达 | en:Is the device accessible
bool CMvCamera::IsDeviceAccessible(MV_CC_DEVICE_INFO* pstDevInfo, unsigned int nAccessMode)
{
    return MV_CC_IsDeviceAccessible(pstDevInfo, nAccessMode);
}

// ch:打开设备 | en:Open Device
int CMvCamera::Open(MV_CC_DEVICE_INFO* pstDeviceInfo)
{
    if (MV_NULL == pstDeviceInfo)
    {
        return MV_E_PARAMETER;
    }

    if (m_hDevHandle)
    {
        return MV_E_CALLORDER;
    }

    int nRet  = MV_CC_CreateHandle(&m_hDevHandle, pstDeviceInfo);
    if (MV_OK != nRet)
    {
        return nRet;
    }

    nRet = MV_CC_OpenDevice(m_hDevHandle);
    if (MV_OK != nRet)
    {
        MV_CC_DestroyHandle(m_hDevHandle);
        m_hDevHandle = MV_NULL;
    }

    memcpy(&m_stDeviceInfo, pstDeviceInfo, sizeof(MV_CC_DEVICE_INFO));

    return nRet;
}

// ch:关闭设备 | en:Close Device
int CMvCamera::Close()
{
    if (MV_NULL == m_hDevHandle)
    {
        return MV_E_HANDLE;
    }

    MV_CC_CloseDevice(m_hDevHandle);

    int nRet = MV_CC_DestroyHandle(m_hDevHandle);
    m_hDevHandle = MV_NULL;

    return nRet;
}

// ch:判断相机是否处于连接状态 | en:Is The Device Connected
bool CMvCamera::IsDeviceConnected()
{
    return MV_CC_IsDeviceConnected(m_hDevHandle);
}

// ch:注册图像数据回调 | en:Register Image Data CallBack
int CMvCamera::RegisterImageCallBack(void(__stdcall* cbOutput)(unsigned char * pData, MV_FRAME_OUT_INFO_EX* pFrameInfo, void* pUser), void* pUser)
{
    return MV_CC_RegisterImageCallBackEx(m_hDevHandle, cbOutput, pUser);
}

// ch:开启抓图 | en:Start Grabbing
int CMvCamera::StartGrabbing()
{
    return MV_CC_StartGrabbing(m_hDevHandle);
}

// ch:停止抓图 | en:Stop Grabbing
int CMvCamera::StopGrabbing()
{
    return MV_CC_StopGrabbing(m_hDevHandle);
}

// ch:主动获取一帧图像数据 | en:Get one frame initiatively
int CMvCamera::GetImageBuffer(MV_FRAME_OUT* pFrame, int nMsec)
{
    return MV_CC_GetImageBuffer(m_hDevHandle, pFrame, nMsec);
}

// ch:释放图像缓存 | en:Free image buffer
int CMvCamera::FreeImageBuffer(MV_FRAME_OUT* pFrame)
{
    return MV_CC_FreeImageBuffer(m_hDevHandle, pFrame);
}

// ch:设置显示窗口句柄 | en:Set Display Window Handle
int CMvCamera::DisplayOneFrame(MV_DISPLAY_FRAME_INFO* pDisplayInfo)
{
    return MV_CC_DisplayOneFrame(m_hDevHandle, pDisplayInfo);
}

// ch:设置SDK内部图像缓存节点个数 | en:Set the number of the internal image cache nodes in SDK
int CMvCamera::SetImageNodeNum(unsigned int nNum)
{
    return MV_CC_SetImageNodeNum(m_hDevHandle, nNum);
}

// ch:获取设备信息 | en:Get device information
int CMvCamera::GetDeviceInfo(MV_CC_DEVICE_INFO* pstDevInfo)
{
    if (pstDevInfo)
    {
        memcpy(pstDevInfo, &m_stDeviceInfo, sizeof(MV_CC_DEVICE_INFO));

        return MV_OK;
    }

    return MV_E_PARAMETER;
}

// ch:获取GEV相机的统计信息 | en:Get detect info of GEV camera
int CMvCamera::GetGevAllMatchInfo(MV_MATCH_INFO_NET_DETECT* pMatchInfoNetDetect)
{
    if (MV_NULL == pMatchInfoNetDetect)
    {
        return MV_E_PARAMETER;
    }

    MV_CC_DEVICE_INFO stDevInfo = {0};
    GetDeviceInfo(&stDevInfo);
    if (stDevInfo.nTLayerType != MV_GIGE_DEVICE)
    {
        return MV_E_SUPPORT;
    }

    MV_ALL_MATCH_INFO struMatchInfo = {0};

    struMatchInfo.nType = MV_MATCH_TYPE_NET_DETECT;
    struMatchInfo.pInfo = pMatchInfoNetDetect;
    struMatchInfo.nInfoSize = sizeof(MV_MATCH_INFO_NET_DETECT);
    memset(struMatchInfo.pInfo, 0, sizeof(MV_MATCH_INFO_NET_DETECT));

    return MV_CC_GetAllMatchInfo(m_hDevHandle, &struMatchInfo);
}

// ch:获取U3V相机的统计信息 | en:Get detect info of U3V camera
int CMvCamera::GetU3VAllMatchInfo(MV_MATCH_INFO_USB_DETECT* pMatchInfoUSBDetect)
{
    if (MV_NULL == pMatchInfoUSBDetect)
    {
        return MV_E_PARAMETER;
    }

    MV_CC_DEVICE_INFO stDevInfo = {0};
    GetDeviceInfo(&stDevInfo);
    if (stDevInfo.nTLayerType != MV_USB_DEVICE)
    {
        return MV_E_SUPPORT;
    }

    MV_ALL_MATCH_INFO struMatchInfo = {0};

    struMatchInfo.nType = MV_MATCH_TYPE_USB_DETECT;
    struMatchInfo.pInfo = pMatchInfoUSBDetect;
    struMatchInfo.nInfoSize = sizeof(MV_MATCH_INFO_USB_DETECT);
    memset(struMatchInfo.pInfo, 0, sizeof(MV_MATCH_INFO_USB_DETECT));

    return MV_CC_GetAllMatchInfo(m_hDevHandle, &struMatchInfo);
}

// ch:获取和设置Int型参数，如 Width和Height，详细内容参考SDK安装目录下的 MvCameraNode.xlsx 文件
// en:Get Int type parameters, such as Width and Height, for details please refer to MvCameraNode.xlsx file under SDK installation directory
int CMvCamera::GetIntValue(IN const char* strKey, OUT MVCC_INTVALUE_EX *pIntValue)
{
    return MV_CC_GetIntValueEx(m_hDevHandle, strKey, pIntValue);
}

int CMvCamera::SetIntValue(IN const char* strKey, IN int64_t nValue)
{
    return MV_CC_SetIntValueEx(m_hDevHandle, strKey, nValue);
}

// ch:获取和设置Enum型参数，如 PixelFormat，详细内容参考SDK安装目录下的 MvCameraNode.xlsx 文件
// en:Get Enum type parameters, such as PixelFormat, for details please refer to MvCameraNode.xlsx file under SDK installation directory
int CMvCamera::GetEnumValue(IN const char* strKey, OUT MVCC_ENUMVALUE *pEnumValue)
{
    return MV_CC_GetEnumValue(m_hDevHandle, strKey, pEnumValue);
}

int CMvCamera::SetEnumValue(IN const char* strKey, IN unsigned int nValue)
{
    return MV_CC_SetEnumValue(m_hDevHandle, strKey, nValue);
}

int CMvCamera::SetEnumValueByString(IN const char* strKey, IN const char* sValue)
{
    return MV_CC_SetEnumValueByString(m_hDevHandle, strKey, sValue);
}

// ch:获取和设置Float型参数，如 ExposureTime和Gain，详细内容参考SDK安装目录下的 MvCameraNode.xlsx 文件
// en:Get Float type parameters, such as ExposureTime and Gain, for details please refer to MvCameraNode.xlsx file under SDK installation directory
int CMvCamera::GetFloatValue(IN const char* strKey, OUT MVCC_FLOATVALUE *pFloatValue)
{
    return MV_CC_GetFloatValue(m_hDevHandle, strKey, pFloatValue);
}

int CMvCamera::SetFloatValue(IN const char* strKey, IN float fValue)
{
    return MV_CC_SetFloatValue(m_hDevHandle, strKey, fValue);
}

// ch:获取和设置Bool型参数，如 ReverseX，详细内容参考SDK安装目录下的 MvCameraNode.xlsx 文件
// en:Get Bool type parameters, such as ReverseX, for details please refer to MvCameraNode.xlsx file under SDK installation directory
int CMvCamera::GetBoolValue(IN const char* strKey, OUT bool *pbValue)
{
    return MV_CC_GetBoolValue(m_hDevHandle, strKey, pbValue);
}

int CMvCamera::SetBoolValue(IN const char* strKey, IN bool bValue)
{
    return MV_CC_SetBoolValue(m_hDevHandle, strKey, bValue);
}

// ch:获取和设置String型参数，如 DeviceUserID，详细内容参考SDK安装目录下的 MvCameraNode.xlsx 文件UserSetSave
// en:Get String type parameters, such as DeviceUserID, for details please refer to MvCameraNode.xlsx file under SDK installation directory
int CMvCamera::GetStringValue(IN const char* strKey, MVCC_STRINGVALUE *pStringValue)
{
    return MV_CC_GetStringValue(m_hDevHandle, strKey, pStringValue);
}

int CMvCamera::SetStringValue(IN const char* strKey, IN const char* strValue)
{
    return MV_CC_SetStringValue(m_hDevHandle, strKey, strValue);
}

// ch:执行一次Command型命令，如 UserSetSave，详细内容参考SDK安装目录下的 MvCameraNode.xlsx 文件
// en:Execute Command once, such as UserSetSave, for details please refer to MvCameraNode.xlsx file under SDK installation directory
int CMvCamera::CommandExecute(IN const char* strKey)
{
    return MV_CC_SetCommandValue(m_hDevHandle, strKey);
}

// ch:探测网络最佳包大小(只对GigE相机有效) | en:Detection network optimal package size(It only works for the GigE camera)
int CMvCamera::GetOptimalPacketSize(unsigned int* pOptimalPacketSize)
{
    if (MV_NULL == pOptimalPacketSize)
    {
        return MV_E_PARAMETER;
    }

    int nRet = MV_CC_GetOptimalPacketSize(m_hDevHandle);
    if (nRet < MV_OK)
    {
        return nRet;
    }

    *pOptimalPacketSize = (unsigned int)nRet;

    return MV_OK;
}

// ch:注册消息异常回调 | en:Register Message Exception CallBack
int CMvCamera::RegisterExceptionCallBack(void(__stdcall* cbException)(unsigned int nMsgType, void* pUser),void* pUser)
{
    return MV_CC_RegisterExceptionCallBack(m_hDevHandle, cbException, pUser);
}

// ch:注册单个事件回调 | en:Register Event CallBack
int CMvCamera::RegisterEventCallBack(const char* pEventName, void(__stdcall* cbEvent)(MV_EVENT_OUT_INFO * pEventInfo, void* pUser), void* pUser)
{
    return MV_CC_RegisterEventCallBackEx(m_hDevHandle, pEventName, cbEvent, pUser);
}

// ch:强制IP | en:Force IP
int CMvCamera::ForceIp(unsigned int nIP, unsigned int nSubNetMask, unsigned int nDefaultGateWay)
{
    return MV_GIGE_ForceIpEx(m_hDevHandle, nIP, nSubNetMask, nDefaultGateWay);
}

// ch:配置IP方式 | en:IP configuration method
int CMvCamera::SetIpConfig(unsigned int nType)
{
    return MV_GIGE_SetIpConfig(m_hDevHandle, nType);
}

// ch:设置网络传输模式 | en:Set Net Transfer Mode
int CMvCamera::SetNetTransMode(unsigned int nType)
{
    return MV_GIGE_SetNetTransMode(m_hDevHandle, nType);
}

// ch:像素格式转换 | en:Pixel format conversion
int CMvCamera::ConvertPixelType(MV_CC_PIXEL_CONVERT_PARAM* pstCvtParam)
{
    return MV_CC_ConvertPixelType(m_hDevHandle, pstCvtParam);
}

// ch:保存图片 | en:save image
int CMvCamera::SaveImage(MV_SAVE_IMAGE_PARAM_EX* pstParam)
{
    return MV_CC_SaveImageEx2(m_hDevHandle, pstParam);
}

int CMvCamera::SaveImageToFile(MV_SAVE_IMG_TO_FILE_PARAM* pstSaveFileParam)
{
    return MV_CC_SaveImageToFile(m_hDevHandle, pstSaveFileParam);
}
  1. 添加SDK,包括上面类CMvCamera程序中缺少的"MvCameraControl.h"

在MVS的安装目录中找到development目录，将include与libraries子目录拷到我们工程文件夹下，重新命名为SDK，如下，




海康java怎么清零客流量数据_海康相机MV


导入外部库，我们这里是64位的MvCameraControl.lib，导入后的工程文件改变如下，

win32: LIBS += -L$$PWD/SDK/Libraries/win64/ -lMvCameraControl

INCLUDEPATH += $$PWD/SDK/Includes
DEPENDPATH += $$PWD/SDK/Includes

win32:!win32-g++: PRE_TARGETDEPS += $$PWD/SDK/Libraries/win64/MvCameraControl.lib
else:win32-g++: PRE_TARGETDEPS += $$PWD/SDK/Libraries/win64/libMvCameraControl.a
win32: LIBS += -L$$PWD/SDK/Libraries/win64/ -lMvCameraControl

INCLUDEPATH += $$PWD/SDK/Includes
DEPENDPATH += $$PWD/SDK/Includes

win32:!win32-g++: PRE_TARGETDEPS += $$PWD/SDK/Libraries/win64/MvCameraControl.lib
else:win32-g++: PRE_TARGETDEPS += $$PWD/SDK/Libraries/win64/libMvCameraControl.a
  1. 到这里已经添加了海康的SDK库，试着编译一下我们刚刚添加的类CMvCamera，

报没有头文件的错，


海康java怎么清零客流量数据_IP_02


原因很简单，是因为我们CMvCamera类的头文件与源文件名字有差别，现在的头文件应该是cmvcamera.h.

修改后，编译正常。下面还有两个事情要做一下：

一个是添加opencv库，我们的下面的程序的图形处理是基于Opencv的；

另一个是仿照例子程序把界面设计出来并实现它们的功能。

  1. 添加Opencv库，

本实验平台opencv安装路径在c盘，所以添加外部库后，工程文件修改如下，

win32:CONFIG(release, debug|release): LIBS += -LC:/opencv/build/x64/vc15/lib/ -lopencv_world453
else:win32:CONFIG(debug, debug|release): LIBS += -LC:/opencv/build/x64/vc15/lib/ -lopencv_world453d

INCLUDEPATH += C:/opencv/build/include
DEPENDPATH += C:/opencv/build/include
win32:CONFIG(release, debug|release): LIBS += -LC:/opencv/build/x64/vc15/lib/ -lopencv_world453
else:win32:CONFIG(debug, debug|release): LIBS += -LC:/opencv/build/x64/vc15/lib/ -lopencv_world453d

INCLUDEPATH += C:/opencv/build/include
DEPENDPATH += C:/opencv/build/include
  1. 设计应用程序界面

原先的界面（9个相机）


海康java怎么清零客流量数据_IP_03


新设计的界面，考虑相机数目少一些4个，功能不增不减。