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第4篇 vs2019+QT调用SDK连接海康相机显示图片

news 2025/9/30 9:26:21

vs2019+QT调用SDK连接海康相机显示图片

连接，采图，获取与设置参数，曝光，增益，帧率

新建项目-文件结构：

debug x64

调用类：

TTcamera.cpp

#include "TTcamera.h"
#include <QDebug>
TTcamera::TTcamera()
{m_hDevHandle = NULL;m_pBufForSaveImage = nullptr;m_nBufSizeForSaveImage = 0;m_pBufForDriver = nullptr;m_nBufSizeForDriver = 0;memset(&m_stDevList, 0, sizeof(MV_CC_DEVICE_INFO_LIST));m_Device = NULL;}TTcamera::~TTcamera()
{if (m_pBufForDriver != nullptr) {free(m_pBufForDriver);m_pBufForDriver = nullptr;}if (m_pBufForSaveImage != nullptr) {free(m_pBufForSaveImage);m_pBufForSaveImage = nullptr;}if (m_hDevHandle) {MV_CC_DestroyHandle(m_hDevHandle);m_hDevHandle = NULL;}
}int TTcamera::InitSDK()
{return MV_CC_Initialize();
}
// ch:反初始化SDK | en:Finalize SDK
int TTcamera::FinalizeSDK()
{return MV_CC_Finalize();
}//查询设备列表
int TTcamera::EnumDevices(MV_CC_DEVICE_INFO_LIST* pstDevList)
{int temp = MV_CC_EnumDevices(MV_GIGE_DEVICE | MV_USB_DEVICE, pstDevList);if (MV_OK != temp){return -1;}return 0;
}//连接相机
//id:自定义相机名称
int TTcamera::connectCamera(string id)
{int temp = EnumDevices(&m_stDevList);if (temp != 0) {qDebug() << "枚举设备失败，错误码:" << temp;return -1;}if (m_stDevList.nDeviceNum == 0) {qDebug() << "未找到任何相机";return 2;}m_Device = NULL;for (unsigned int i = 0; i < m_stDevList.nDeviceNum; i++){MV_CC_DEVICE_INFO* pDeviceInfo = m_stDevList.pDeviceInfo[i];if (NULL == pDeviceInfo){continue;}if (id == (char*)pDeviceInfo->SpecialInfo.stGigEInfo.chUserDefinedName ||id == (char*)pDeviceInfo->SpecialInfo.stGigEInfo.chSerialNumber){m_Device = m_stDevList.pDeviceInfo[i];break;}}if (m_Device == NULL) {qDebug() << "未找到指定名称的相机";return 3;}temp = MV_CC_CreateHandle(&m_hDevHandle, m_Device);if (temp != MV_OK) {qDebug() << "创建句柄失败，错误码:" << temp;return -1;}temp = MV_CC_OpenDevice(m_hDevHandle);if (temp != MV_OK) {qDebug() << "打开设备失败，错误码:" << temp;MV_CC_DestroyHandle(m_hDevHandle);m_hDevHandle = NULL;return -1;}// 设置触发模式为关闭（连续采集模式）int triggerResult = setTriggerMode(0);if (triggerResult != 0) {qDebug() << "设置触发模式失败";MV_CC_CloseDevice(m_hDevHandle);MV_CC_DestroyHandle(m_hDevHandle);m_hDevHandle = NULL;return -1;}return 0;
}
//设置相机是否开启触发模式
int TTcamera::setTriggerMode(unsigned int TriggerModeNum)
{int nRet = MV_CC_SetTriggerMode(m_hDevHandle, TriggerModeNum);if (MV_OK != nRet){return -1;}}
//启动相机采集
int TTcamera::startCamera()
{if (m_hDevHandle == NULL) {qDebug() << "相机句柄为空，无法启动采集";return -1;}int temp = MV_CC_StartGrabbing(m_hDevHandle);if (temp != 0){qDebug() << "抓图失败，错误码:" << temp;return -1;}else{qDebug() << "抓图成功";return 0;}
}
//发送软触发
int TTcamera::softTrigger()
{int enumValue = MV_CC_SetEnumValue(m_hDevHandle, "TriggerSource", MV_TRIGGER_SOURCE_SOFTWARE);if (enumValue != 0) {qDebug() << "设置软触发失败";return -1;}else {qDebug() << "设置软触发";}int comdValue = MV_CC_SetCommandValue(m_hDevHandle, "TriggerSoftware");if (comdValue != 0){qDebug() << "软触发失败";return -1;}else{qDebug() << "软触发一次";return 0;}
}
//读取相机中的图像
int TTcamera::ReadBuffer(Mat& image)
{if (m_hDevHandle == NULL) {qDebug() << "相机句柄为空，无法读取图像";return -1;}// 释放之前分配的内存if (m_pBufForDriver != nullptr) {free(m_pBufForDriver);m_pBufForDriver = nullptr;}if (m_pBufForSaveImage != nullptr) {free(m_pBufForSaveImage);m_pBufForSaveImage = nullptr;}unsigned int nBufSize = 0;MVCC_INTVALUE stIntvalue;memset(&stIntvalue, 0, sizeof(MVCC_INTVALUE));int tempValue = MV_CC_GetIntValue(m_hDevHandle, "PayloadSize", &stIntvalue);if (tempValue != 0){qDebug() << "GetIntValue失败，错误码:" << tempValue;return -1;}nBufSize = stIntvalue.nCurValue;m_pBufForDriver = (unsigned char*)malloc(nBufSize);if (m_pBufForDriver == nullptr) {qDebug() << "内存分配失败";return -1;}MV_FRAME_OUT_INFO_EX stImageInfo;memset(&stImageInfo, 0, sizeof(MV_FRAME_OUT_INFO_EX));int timeout = MV_CC_GetOneFrameTimeout(m_hDevHandle, m_pBufForDriver, nBufSize, &stImageInfo, 1000);if (timeout != 0){qDebug() << "GetOneFrameTimeout失败，错误码:" << timeout;free(m_pBufForDriver);m_pBufForDriver = nullptr;return -1;}m_nBufSizeForSaveImage = stImageInfo.nWidth * stImageInfo.nHeight * 3 + 2048;m_pBufForSaveImage = (unsigned char*)malloc(m_nBufSizeForSaveImage);if (m_pBufForSaveImage == nullptr) {qDebug() << "内存分配失败";free(m_pBufForDriver);m_pBufForDriver = nullptr;return -1;}bool isMono;switch (stImageInfo.enPixelType){case PixelType_Gvsp_Mono8:case PixelType_Gvsp_Mono10:case PixelType_Gvsp_Mono10_Packed:case PixelType_Gvsp_Mono12:case PixelType_Gvsp_Mono12_Packed:isMono = true;break;default:isMono = false;break;}if (isMono){image = Mat(stImageInfo.nHeight, stImageInfo.nWidth, CV_8UC1, m_pBufForDriver);}else{MV_CC_PIXEL_CONVERT_PARAM stConvertParam = { 0 };stConvertParam.nWidth = stImageInfo.nWidth;stConvertParam.nHeight = stImageInfo.nHeight;stConvertParam.pSrcData = m_pBufForDriver;stConvertParam.nSrcDataLen = stImageInfo.nFrameLen;stConvertParam.enSrcPixelType = stImageInfo.enPixelType;stConvertParam.enDstPixelType = PixelType_Gvsp_RGB8_Packed;stConvertParam.pDstBuffer = m_pBufForSaveImage;stConvertParam.nDstBufferSize = m_nBufSizeForSaveImage;int convertResult = MV_CC_ConvertPixelType(m_hDevHandle, &stConvertParam);if (convertResult != MV_OK) {qDebug() << "像素格式转换失败，错误码:" << convertResult;free(m_pBufForDriver);free(m_pBufForSaveImage);m_pBufForDriver = nullptr;m_pBufForSaveImage = nullptr;return -1;}image = Mat(stImageInfo.nHeight, stImageInfo.nWidth, CV_8UC3, m_pBufForSaveImage);}return 0;
}
//设置心跳时间
int TTcamera::setHeartBeatTime(unsigned int time)
{//心跳时间最小为500msif (time < 500)time = 500;int temp = MV_CC_SetIntValue(m_hDevHandle, "GevHeartbeatTimeout", time);if (temp != 0){return -1;}else{return 0;}
}
//设置曝光时间
int TTcamera::setExposureTime(float ExposureTimeNum)
{int temp = MV_CC_SetFloatValue(m_hDevHandle, "ExposureTime", ExposureTimeNum);if (temp != 0)return -1;return 0;
}
// ch:获取和设置Enum型参数，如 PixelFormat
// en:Get Enum type parameters, such as PixelFormat
int TTcamera::GetEnumValue(  char* strKey,  MVCC_ENUMVALUE* pEnumValue)
{return MV_CC_GetEnumValue(m_hDevHandle, strKey, pEnumValue);
}
int TTcamera::GetSDKVersion()
{return MV_CC_GetSDKVersion();
}
// ch:获取和设置Float型参数，如 ExposureTime和Gain
// en:Get Float type parameters, such as ExposureTime and Gain
int TTcamera::GetFloatValue(char* strKey,  MVCC_FLOATVALUE* pFloatValue)
{return MV_CC_GetFloatValue(m_hDevHandle, strKey, pFloatValue);
}
int TTcamera::SetEnumValue( char* strKey, unsigned int nValue)
{return MV_CC_SetEnumValue(m_hDevHandle, strKey, nValue);
}
int TTcamera::SetFloatValue( char* strKey, float fValue)
{return MV_CC_SetFloatValue(m_hDevHandle, strKey, fValue);
}
int TTcamera::SetBoolValue( char* strKey,  bool bValue)
{return MV_CC_SetBoolValue(m_hDevHandle, strKey, bValue);
}
//关闭相机
int TTcamera::closeCamera()
{int nRet = MV_OK;if (NULL == m_hDevHandle){qDebug() << "没有句柄，不用关闭";return -1;}MV_CC_CloseDevice(m_hDevHandle);nRet = MV_CC_DestroyHandle(m_hDevHandle);m_hDevHandle = NULL;return nRet;
}

TTcamera.h


#ifndef TTcamera_H
#define TTcamera_H
#include "MvCameraControl.h"
#pragma execution_character_set("utf-8")   //设置当前文件为UTF-8编码
#pragma warning( disable : 4819 )    //解决SDK中包含中文问题；忽略C4819错误
#include <stdio.h>
#include <iostream>
#include "opencv2/core/core.hpp"
#include "opencv2/opencv.hpp"
#include "opencv2/highgui/highgui.hpp"
#include <string>
#include <QDebug>
#include <QDateTime> // 用于生成时间戳文件名using namespace std;
using namespace cv;
class TTcamera
{
public:TTcamera();~TTcamera();static int InitSDK();static int FinalizeSDK();//声明相关变量及函数等//枚举相机设备列表static int EnumDevices(MV_CC_DEVICE_INFO_LIST* pstDevList);static int GetSDKVersion();// ch:连接相机int connectCamera(string id);//设置相机触发模式int setTriggerMode(unsigned int TriggerModeNum);//开启相机采集int startCamera();//发送软触发int softTrigger();//读取bufferint ReadBuffer(Mat& image);//设置心跳时间int setHeartBeatTime(unsigned int time);//设置曝光时间int setExposureTime(float ExposureTimeNum);//关闭相机int closeCamera();int TTcamera::GetFloatValue(char* strKey, MVCC_FLOATVALUE* pFloatValue);int TTcamera::GetEnumValue(char* strKey, MVCC_ENUMVALUE* pEnumValue);int TTcamera::SetEnumValue(char* strKey, unsigned int nValue);int TTcamera::SetFloatValue( char* strKey, float fValue);int TTcamera::SetBoolValue(char* strKey, bool bValue);
private:void* m_hDevHandle;
public:unsigned char* m_pBufForSaveImage; // 用于保存图像的缓存unsigned int m_nBufSizeForSaveImage;unsigned char* m_pBufForDriver; // 用于从驱动获取图像的缓存unsigned int m_nBufSizeForDriver;MV_CC_DEVICE_INFO_LIST m_stDevList; // ch:设备信息列表结构体变量，用来存储设备列表MV_CC_DEVICE_INFO* m_Device = NULL; //设备对象
};
#endif // TTcamera_H

QtWidgetsApplication1.h

#pragma once#include <QtWidgets/QMainWindow>
#include "ui_QtWidgetsApplication1.h"
#include "TTcamera.h"
#include <QCloseEvent>
#include <Qtimer>class QtWidgetsApplication1 : public QMainWindow
{Q_OBJECTpublic:QtWidgetsApplication1(QWidget *parent = nullptr);~QtWidgetsApplication1();TTcamera* m_pcMycamera;MV_CC_DEVICE_INFO_LIST m_stDevList;//设备列表string cameraName; //相机名称Mat imageMat; //使用OpenCV接受采集图像QImage cvMat2QImage(const cv::Mat& mat);QImage image;private:Ui::QtWidgetsApplication1Class ui;QTimer* m_timer; // 用于定时获取图像bool m_bIsGrabbing; // 标记是否正在连续采集void closeEvent(QCloseEvent* e);int GetExposureTime();// 定时器超时槽函数int GetTriggerMode();int GetGain();int                     m_nTriggerMode;                       // ch:触发模式 | en:Trigger Modebool                    m_bSoftWareTriggerCheck;
private slots:void on_pushButton_link_clicked();void on_pushButton_close_clicked();void on_pushButton_caiji_clicked();void on_pushButton_realtime_clicked(); // 实时显示按钮int GetFrameRate();void updateFrame();void GetPara();int GetTriggerSource();int SetExposureTime();int SetGain();int SetFrameRate();void SetPara();void ShowMsg(QString msg);void CloseWindow();private://  Ui::MainWindow* ui;};

QtWidgetsApplication1.cpp

#include "QtWidgetsApplication1.h"
#include "qmessagebox.h"QtWidgetsApplication1::QtWidgetsApplication1(QWidget *parent): QMainWindow(parent)
{ui.setupUi(this);TTcamera::InitSDK();int i_version = TTcamera::GetSDKVersion();connect(ui.pushButton_start, &QPushButton::clicked, this, [=] {QMessageBox::information(this,"title","btn test");});connect(ui.pushButton_realtime, &QPushButton::clicked, this, [=] {// on_pushButton_realtime_clicked();});connect(ui.on_pushButton_caiji, &QPushButton::clicked, this, [=] {on_pushButton_caiji_clicked();});connect(ui.on_pushButton_close, &QPushButton::clicked, this, [=] {on_pushButton_close_clicked();});connect(ui.on_pushButton_link, &QPushButton::clicked, this, [=] {on_pushButton_link_clicked();});connect(ui.pushButton_exit, &QPushButton::clicked, this, &QtWidgetsApplication1::CloseWindow);connect(ui.pushButton_get_para, &QPushButton::clicked, this, &QtWidgetsApplication1::GetPara);connect(ui.pushButton_set_para, &QPushButton::clicked, this, &QtWidgetsApplication1::SetPara);// ui->setupUi(this);// 初始化定时器和状态变量m_timer = new QTimer(this);m_bIsGrabbing = false;connect(m_timer, SIGNAL(timeout()), this, SLOT(updateFrame()));m_pcMycamera = new TTcamera;int neRt = m_pcMycamera->EnumDevices(&m_stDevList);qDebug() << neRt;qDebug() << m_stDevList.pDeviceInfo[0]->nTLayerType;//获取相机的IP地址if (1 == m_stDevList.pDeviceInfo[0]->nTLayerType) {int nIp1, nIp2, nIp3, nIp4;nIp1 = ((m_stDevList.pDeviceInfo[0]->SpecialInfo.stGigEInfo.nCurrentIp & 0xff000000) >> 24);nIp2 = ((m_stDevList.pDeviceInfo[0]->SpecialInfo.stGigEInfo.nCurrentIp & 0x00ff0000) >> 16);nIp3 = ((m_stDevList.pDeviceInfo[0]->SpecialInfo.stGigEInfo.nCurrentIp & 0x0000ff00) >> 8);nIp4 = (m_stDevList.pDeviceInfo[0]->SpecialInfo.stGigEInfo.nCurrentIp & 0x000000ff);QString nIp = QString("%1.%2.%3.%4").arg(nIp1).arg(nIp2).arg(nIp3).arg(nIp4);qDebug() << nIp;}}QtWidgetsApplication1::~QtWidgetsApplication1()   
{}//连接相机
void QtWidgetsApplication1::on_pushButton_link_clicked()
{cameraName = (char*)m_stDevList.pDeviceInfo[0]->SpecialInfo.stGigEInfo.chUserDefinedName;//cameraName = (char*)m_stDevList.pDeviceInfo[0]->SpecialInfo.stGigEInfo.chSerialNumber;qDebug() << "尝试连接相机:" << QString::fromStdString(cameraName);int linkCamera = m_pcMycamera->connectCamera(cameraName);qDebug() << "连接结果:" << linkCamera;if (linkCamera == 0) {qDebug() << "连接相机成功";// 开启抓图int satrtCamera = m_pcMycamera->startCamera();if (satrtCamera != 0) {qDebug() << "启动相机采集失败";}else {qDebug() << "正在启动相机采集信息";QMessageBox::information(this, "title", "已连接相机");}}else {qDebug() << "连接相机失败，错误码:" << linkCamera;// 尝试使用序列号连接QString serialNumber = QString::fromLocal8Bit((char*)m_stDevList.pDeviceInfo[0]->SpecialInfo.stGigEInfo.chSerialNumber);qDebug() << "尝试使用序列号连接:" << serialNumber;int linkBySerial = m_pcMycamera->connectCamera(serialNumber.toStdString());qDebug() << "使用序列号连接结果:" << linkBySerial;}
}
//添加实时显示按钮的槽函数
void QtWidgetsApplication1::on_pushButton_realtime_clicked()
{if (!m_bIsGrabbing) {// 开始实时显示if (m_pcMycamera->setTriggerMode(0) == 0) { // 设置为连续采集模式m_timer->start(33); // 约30帧/秒m_bIsGrabbing = true;ui.pushButton_realtime->setText("停止实时显示");}}else {// 停止实时显示m_timer->stop();m_bIsGrabbing = false;ui.pushButton_realtime->setText("开始实时显示");}
}
// ch:获取帧率 | en:Get Frame Rate
int QtWidgetsApplication1::GetFrameRate()
{MVCC_FLOATVALUE stFloatValue = { 0 };char temp_info[] = "ResultingFrameRate";int nRet = m_pcMycamera->GetFloatValue(temp_info, &stFloatValue);if (MV_OK != nRet){return nRet;}// m_dFrameRateEdit = stFloatValue.fCurValue;ui.lineEdit_frame_rate->setText(QString::number(stFloatValue.fCurValue));return MV_OK;
}// 定时器超时槽函数，用于更新画面
void QtWidgetsApplication1::updateFrame()
{// 读取相机中的图像int readInt = m_pcMycamera->ReadBuffer(imageMat);if (readInt != 0) {qDebug() << "读取图像失败";return;}// 转换并显示图像image = cvMat2QImage(imageMat);ui.label_image->setPixmap(QPixmap::fromImage(image).scaled(ui.label_image->width(),ui.label_image->height(),Qt::KeepAspectRatio));
}
// ch:获取曝光时间 | en:Get Exposure Time
int QtWidgetsApplication1::GetExposureTime()
{MVCC_FLOATVALUE stFloatValue = { 0 };char temp_info[] = "ExposureTime";int nRet = m_pcMycamera->GetFloatValue(temp_info, &stFloatValue);if (MV_OK != nRet){return nRet;}ui.lineEdit_expose->setText(QString::number(stFloatValue.fCurValue));return MV_OK;
}
int QtWidgetsApplication1::GetTriggerMode()
{MVCC_ENUMVALUE stEnumValue = { 0 };char temp_info[] = "TriggerMode";int nRet = m_pcMycamera->GetEnumValue(temp_info, &stEnumValue);if (MV_OK != nRet){return nRet;}m_nTriggerMode = stEnumValue.nCurValue;if (MV_TRIGGER_MODE_ON == m_nTriggerMode){//OnBnClickedTriggerModeRadio();}else{m_nTriggerMode = MV_TRIGGER_MODE_OFF;//OnBnClickedContinusModeRadio();}return MV_OK;
}
// ch:获取增益 | en:Get Gain
int QtWidgetsApplication1::GetGain()
{MVCC_FLOATVALUE stFloatValue = { 0 };char temp_info[] = "Gain";int nRet = m_pcMycamera->GetFloatValue(temp_info, &stFloatValue);if (MV_OK != nRet){return nRet;}ui.lineEdit_gain->setText(QString::number(stFloatValue.fCurValue));return MV_OK;
}
void QtWidgetsApplication1::GetPara()
{int nRet = GetTriggerMode();if (nRet != MV_OK){// ShowErrorMsg(TEXT("Get Trigger Mode Fail"), nRet);ShowMsg("Get Trigger Mode Fail");}nRet = GetExposureTime();if (nRet != MV_OK){// ShowErrorMsg(TEXT("Get Exposure Time Fail"), nRet);ShowMsg("Get Exposure Time Fail");}nRet = GetGain();if (nRet != MV_OK){// ShowErrorMsg(TEXT("Get Gain Fail"), nRet);ShowMsg("Get Gain Fail");}nRet = GetFrameRate();if (nRet != MV_OK){// ShowErrorMsg(TEXT("Get Frame Rate Fail"), nRet);ShowMsg("Get Frame Rate Fail");}nRet = GetTriggerSource();if (nRet != MV_OK){// ShowErrorMsg(TEXT("Get Trigger Source Fail"), nRet);ShowMsg("Get Trigger Source Fail");}}
// ch:获取触发源 | en:Get Trigger Source
int QtWidgetsApplication1::GetTriggerSource()
{MVCC_ENUMVALUE stEnumValue = { 0 };char temp_info[] = "TriggerSource";int nRet = m_pcMycamera->GetEnumValue(temp_info, &stEnumValue);if (MV_OK != nRet){return nRet;}if ((unsigned int)MV_TRIGGER_SOURCE_SOFTWARE == stEnumValue.nCurValue){m_bSoftWareTriggerCheck = true;}else{m_bSoftWareTriggerCheck = false;}return MV_OK;
}
// ch:设置曝光时间 | en:Set Exposure Time
int QtWidgetsApplication1::SetExposureTime()
{char temp_info[] = "ExposureAuto";m_pcMycamera->SetEnumValue(temp_info, MV_EXPOSURE_AUTO_MODE_OFF);char temp_info2[] = "ExposureTime";return m_pcMycamera->SetFloatValue(temp_info2, ui.lineEdit_expose->text().toFloat());
}
// ch:设置增益 | en:Set Gain
int QtWidgetsApplication1::SetGain()
{// ch:设置增益前先把自动增益关闭，失败无需返回//en:Set Gain after Auto Gain is turned off, this failure does not need to returnchar temp_info[] = "GainAuto";m_pcMycamera->SetEnumValue(temp_info, 0);char temp_info2[] = "Gain";return m_pcMycamera->SetFloatValue(temp_info2, ui.lineEdit_gain->text().toFloat());
}// ch:设置帧率 | en:Set Frame Rate
int QtWidgetsApplication1::SetFrameRate()
{char temp_info[] = "AcquisitionFrameRateEnable";int nRet = m_pcMycamera->SetBoolValue(temp_info, true);if (MV_OK != nRet){return nRet;}char temp_info2[] = "AcquisitionFrameRate";return m_pcMycamera->SetFloatValue(temp_info2, ui.lineEdit_frame_rate->text().toFloat());
}
void QtWidgetsApplication1::SetPara()
{bool bIsSetSucceed = true;int nRet = SetExposureTime();if (nRet != MV_OK){bIsSetSucceed = false;// ShowErrorMsg(TEXT("Set Exposure Time Fail"), nRet);ShowMsg("Set Exposure Time Fail");}nRet = SetGain();if (nRet != MV_OK){bIsSetSucceed = false;//ShowErrorMsg(TEXT("Set Gain Fail"), nRet);ShowMsg("Set Gain Fail");}nRet = SetFrameRate();if (nRet != MV_OK){bIsSetSucceed = false;//ShowErrorMsg(TEXT("Set Frame Rate Fail"), nRet);ShowMsg("Set Frame Rate Fail");}if (true == bIsSetSucceed){// ShowErrorMsg(TEXT("Set Parameter Succeed"), nRet);ShowMsg("Set Parameter Succeed");}
}
void QtWidgetsApplication1::ShowMsg(QString msg)
{QMessageBox::information(this,"title",msg);
}
void QtWidgetsApplication1::CloseWindow()
{if (QMessageBox::question(this, tr("Tips"), tr("退出程序吗？"), QMessageBox::Yes, QMessageBox::No) == QMessageBox::Yes){on_pushButton_close_clicked();QApplication::exit();}}// 修改单张采集函数，确保在单张采集时使用触发模式
void QtWidgetsApplication1::on_pushButton_caiji_clicked()
{// 如果正在实时显示，先停止if (m_bIsGrabbing) {m_timer->stop();m_bIsGrabbing = false;ui.pushButton_realtime->setText("开始实时显示");}// 设置为触发模式m_pcMycamera->setTriggerMode(1);// 发送软触发int softTrigger = m_pcMycamera->softTrigger();if (softTrigger != 0) {qDebug() << "软触发失败";}else {qDebug() << "成功触发一次";}// 读取相机中的图像int readInt = m_pcMycamera->ReadBuffer(imageMat);if (readInt != 0) {qDebug() << "读取图像失败";}image = cvMat2QImage(imageMat);ui.label_image->setPixmap(QPixmap::fromImage(image).scaled(ui.label_image->width(),ui.label_image->height(),Qt::KeepAspectRatio));
}
void QtWidgetsApplication1::closeEvent(QCloseEvent* ee)
{if (QMessageBox::question(this, tr("Tips"), tr("关闭程序吗？"), QMessageBox::Yes, QMessageBox::No) == QMessageBox::Yes){//  setWindowState(Qt::WindowMinimized);// emit SigToMainLog("已执行最小化");on_pushButton_close_clicked();ee->accept();}else{ee->ignore();// return;// }
}
//关闭设备
void QtWidgetsApplication1::on_pushButton_close_clicked()
{//关闭设备，释放资源int close = m_pcMycamera->closeCamera();if (close != 0) {qDebug() << "相机关闭失败";QMessageBox::information(this,"title","相机关闭失败");}else{QMessageBox::information(this, "title", "相机已经关闭");}TTcamera::FinalizeSDK();}//Mat转QImage函数
QImage QtWidgetsApplication1::cvMat2QImage(const cv::Mat& mat)
{// 8-bits unsigned, NO. OF CHANNELS = 1if (mat.type() == CV_8UC1){QImage qimage(mat.cols, mat.rows, QImage::Format_Indexed8);// Set the color table (used to translate colour indexes to qRgb values)qimage.setColorCount(256);for (int i = 0; i < 256; i++){qimage.setColor(i, qRgb(i, i, i));}// Copy input Matuchar* pSrc = mat.data;for (int row = 0; row < mat.rows; row++){uchar* pDest = qimage.scanLine(row);memcpy(pDest, pSrc, mat.cols);pSrc += mat.step;}return qimage;}// 8-bits unsigned, NO. OF CHANNELS = 3else if (mat.type() == CV_8UC3){// Copy input Matconst uchar* pSrc = (const uchar*)mat.data;// Create QImage with same dimensions as input MatQImage image(pSrc, mat.cols, mat.rows, mat.step, QImage::Format_RGB888);return image.rgbSwapped();}else if (mat.type() == CV_8UC4){// Copy input Matconst uchar* pSrc = (const uchar*)mat.data;// Create QImage with same dimensions as input MatQImage image(pSrc, mat.cols, mat.rows, mat.step, QImage::Format_ARGB32);return image.copy();}else{return QImage();}
}

QtWidgetsApplication1.ui

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0"><class>QtWidgetsApplication1Class</class><widget class="QMainWindow" name="QtWidgetsApplication1Class"><property name="geometry"><rect><x>0</x><y>0</y><width>837</width><height>644</height></rect></property><property name="windowTitle"><string>QtWidgetsApplication1</string></property><widget class="QWidget" name="centralWidget"><layout class="QVBoxLayout" name="verticalLayout"><item><layout class="QHBoxLayout" name="horizontalLayout"><item><widget class="QGroupBox" name="groupBox"><property name="minimumSize"><size><width>500</width><height>500</height></size></property><property name="maximumSize"><size><width>16777215</width><height>500</height></size></property><property name="title"><string>显示画面</string></property><layout class="QGridLayout" name="gridLayout"><item row="0" column="0"><widget class="QLabel" name="label_image"><property name="styleSheet"><string notr="true">background-color: rgb(0, 0, 0);</string></property><property name="frameShadow"><enum>QFrame::Sunken</enum></property><property name="text"><string/></property></widget></item></layout></widget></item><item><widget class="QGroupBox" name="groupBox_2"><property name="minimumSize"><size><width>0</width><height>500</height></size></property><property name="maximumSize"><size><width>16777215</width><height>500</height></size></property><property name="title"><string>参数</string></property><widget class="QLabel" name="label"><property name="geometry"><rect><x>20</x><y>60</y><width>54</width><height>12</height></rect></property><property name="text"><string>曝光</string></property></widget><widget class="QLabel" name="label_2"><property name="geometry"><rect><x>20</x><y>100</y><width>54</width><height>12</height></rect></property><property name="text"><string>增益</string></property></widget><widget class="QLabel" name="label_3"><property name="geometry"><rect><x>20</x><y>140</y><width>54</width><height>12</height></rect></property><property name="text"><string>帧率</string></property></widget><widget class="QPushButton" name="pushButton_get_para"><property name="geometry"><rect><x>20</x><y>180</y><width>75</width><height>23</height></rect></property><property name="text"><string>获取</string></property></widget><widget class="QPushButton" name="pushButton_set_para"><property name="geometry"><rect><x>110</x><y>180</y><width>75</width><height>23</height></rect></property><property name="text"><string>设置</string></property></widget><widget class="QLineEdit" name="lineEdit_expose"><property name="geometry"><rect><x>80</x><y>50</y><width>113</width><height>20</height></rect></property></widget><widget class="QLineEdit" name="lineEdit_gain"><property name="geometry"><rect><x>80</x><y>90</y><width>113</width><height>20</height></rect></property></widget><widget class="QLineEdit" name="lineEdit_frame_rate"><property name="geometry"><rect><x>80</x><y>130</y><width>113</width><height>20</height></rect></property></widget></widget></item></layout></item><item><layout class="QGridLayout" name="gridLayout_2"><item row="0" column="0"><widget class="QPushButton" name="on_pushButton_link"><property name="styleSheet"><string notr="true">background:qlineargradient(spread:pad, x1:0, y1:0, x2:0, y2:1, 
stop:0 rgba(204, 250, 227, 255), /*第1个颜色值*/
stop:0.25 rgba(126, 242, 185, 255), /*第2个颜色值*/
stop:0.5 rgba(76, 237, 157, 255), /*第3个颜色值*/
stop:0.65 rgba(91, 239, 166, 255), /*第4个颜色值*/
stop:1 rgba(184, 248, 217, 255));/*第5个颜色值*/
border: 2px solid rgb(78,238,158);/*边框颜色值*/border-radius: 10px;
font: 16pt &quot;Arial&quot;;</string></property><property name="text"><string>开始连接</string></property></widget></item><item row="0" column="1"><widget class="QPushButton" name="pushButton_realtime"><property name="styleSheet"><string notr="true">background:qlineargradient(spread:pad, x1:0, y1:0, x2:0, y2:1, 
stop:0 rgba(199, 238, 249, 255), 
stop:0.25 rgba(132, 217, 243, 255), 
stop:0.5 rgba(80, 200, 238, 255), 
stop:0.65 rgba(87, 203, 239, 255), 
stop:1 rgba(186, 233, 249, 255));border: 2px solid rgb(106,208,240);border-radius: 10px;
font: 16pt &quot;Arial&quot;;</string></property><property name="text"><string>实时显示</string></property></widget></item><item row="0" column="2"><widget class="QPushButton" name="on_pushButton_caiji"><property name="styleSheet"><string notr="true">background:qlineargradient(spread:pad, x1:0, y1:0, x2:0, y2:1, 
stop:0 rgba(250, 204, 246, 255), /*第1个颜色值*/
stop:0.25 rgba(243, 144, 236, 255), /*第2个颜色值*/
stop:0.5 rgba(238, 81, 223, 255), /*第3个颜色值*/
stop:0.65 rgba(239, 92, 225, 255), /*第4个颜色值*/
stop:1 rgba(249, 186, 243, 255));/*第5个颜色值*/
border: 2px solid rgb(240,102,255);/*边框颜色值*/border-radius: 10px;
font: 16pt &quot;Arial&quot;;
</string></property><property name="text"><string>图像采集</string></property></widget></item><item row="0" column="3"><widget class="QPushButton" name="on_pushButton_close"><property name="styleSheet"><string notr="true">background:qlineargradient(spread:pad, x1:0, y1:0, x2:0, y2:1, 
stop:0 rgba(249, 202, 201, 255), /*第1个颜色值*/
stop:0.25 rgba(242, 126, 126, 255), /*第2个颜色值*/
stop:0.5 rgba(237, 78, 78, 255), /*第3个颜色值*/
stop:0.65 rgba(238, 89, 89, 255), /*第4个颜色值*/
stop:1 rgba(247, 175, 175, 255));/*第5个颜色值*/
border: 2px solid rgb(237,80,78);/*边框颜色值*/border-radius: 10px;font: 16pt &quot;Arial&quot;;</string></property><property name="text"><string>关闭连接</string></property></widget></item><item row="0" column="4"><widget class="QPushButton" name="pushButton_exit"><property name="styleSheet"><string notr="true">background:qlineargradient(spread:pad, x1:0, y1:0, x2:0, y2:1, 
stop:0 rgba(247, 250, 204, 255), 
stop:0.25 rgba(236, 243, 133, 255), 
stop:0.5 rgba(226, 237, 76, 255), 
stop:0.65 rgba(229, 239, 91, 255), 
stop:1 rgba(229, 233, 160, 255));border: 2px solid rgb(225,238,78);border-radius: 10px;
font: 16pt &quot;Arial&quot;;
</string></property><property name="text"><string>退出</string></property></widget></item><item row="1" column="0"><widget class="QPushButton" name="pushButton_start"><property name="styleSheet"><string notr="true">.QPushButton {background:qlineargradient(spread:pad, x1:0, y1:0, x2:0, y2:1, 
stop:0 rgba(233, 233, 233, 255), 
stop:0.35 rgba(220, 220, 220, 255), 
stop:0.5 rgba(213, 213, 213, 255), 
stop:0.65 rgba(230, 230, 230, 255), 
stop:1 rgba(242, 242, 242, 255));border: 1px solid rgb(128,126,126);border-radius: 5px;
font: 16pt &quot;Arial&quot;;
}
.QPushButton:hover{background:qlineargradient(spread:pad, x1:0, y1:0, x2:0, y2:1, 
stop:0 rgba(250, 250, 250, 255), 
stop:0.5 rgba(255, 255, 255, 255), 
stop:1 rgba(250, 250, 250, 255));border: 1px solid rgb(63,140,161);border-radius: 5px;
}.QPushButton:pressed{background:qlineargradient(spread:pad, x1:0, y1:0, x2:0, y2:1, 
stop:0 rgba(255, 255, 255, 255), 
stop:0.5 rgba(235, 247, 253, 255), 
stop:1 rgba(213, 237, 250, 255));border: 1px solid rgb(3,110,183);border-radius: 5px;}</string></property><property name="text"><string>显示消息</string></property></widget></item></layout></item></layout></widget><widget class="QMenuBar" name="menuBar"><property name="geometry"><rect><x>0</x><y>0</y><width>837</width><height>23</height></rect></property></widget><widget class="QToolBar" name="mainToolBar"><attribute name="toolBarArea"><enum>TopToolBarArea</enum></attribute><attribute name="toolBarBreak"><bool>false</bool></attribute></widget><widget class="QStatusBar" name="statusBar"/></widget><layoutdefault spacing="6" margin="11"/><resources><include location="QtWidgetsApplication1.qrc"/></resources><connections/>
</ui>

海康官网下载最新SDK，如：MVS_STD_4.3.2_240529.zip

安装后：项目属性，包含目录：

C:\Program Files (x86)\MVS\Development\Includes

库目录添加：

链接器-》输入：

http://www.dtcms.com/a/423375.html

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