QT c++ 海康红外热像仪

作者：菜鸟追梦旅行 | 2024-02-27 07:47:58

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QT c++ 海康红外热像仪

//本文描述2通道海康通道红外热像仪预览和抓图

#include "mainwindow.h"
#include "ui_mainwindow.h"

MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent)
, ui(new Ui::MainWindow)
{
ui->setupUi(this);
userID=-1;
previewID=-1;

if(initSDK())
qDebug()<<"SDK init Success!\n";

}
long MainWindow::play(HWND hWnd, NET_DVR_PREVIEWINFO &struPlayInfo)
{
struPlayInfo={0};
struPlayInfo.hPlayWnd = hWnd;//需要 SDK 解码时句柄设为有效值，仅取流不解码时可设为空
struPlayInfo.lChannel = 1;//预览通道号
struPlayInfo.dwStreamType = 0;//码流类型：0-主码流，1-子码流，2-三码流，3-虚拟码流，以此类推
struPlayInfo.dwLinkMode = 0;//0- TCP 方式，1- UDP 方式，2- 多播方式，3- RTP 方式，4-RTP/RTSP，5-RSTP/HTTP
struPlayInfo.bBlocked = 1;//0- 非阻塞取流，1- 阻塞取流

long IRealPlayHandle = NET_DVR_RealPlay_V40(userID, &struPlayInfo, NULL, NULL);

if(IRealPlayHandle <0)
{
qDebug() << "NET_DVR_RealPlay_V40 error;error number " <<NET_DVR_GetLastError();
QMessageBox::warning(this,"error","NET_DVR_RealPlay_V40 error;error number "+QString::number(NET_DVR_GetLastError()));
NET_DVR_Logout(userID);
userID=-1;
return -1;
}

return IRealPlayHandle;
}
long MainWindow::play2(HWND hWnd, NET_DVR_PREVIEWINFO &struPlayInfo)
{
struPlayInfo={0};
struPlayInfo.hPlayWnd = hWnd;//需要 SDK 解码时句柄设为有效值，仅取流不解码时可设为空
struPlayInfo.lChannel = 2;//预览通道号
struPlayInfo.dwStreamType = 0;//码流类型：0-主码流，1-子码流，2-三码流，3-虚拟码流
struPlayInfo.dwLinkMode = 0;//0- TCP 方式，1- UDP 方式，2- 多播方式，3- RTP 方式

//4-RTP/RTSP，5-RSTP/HTTP
struPlayInfo.bBlocked = 1;//0- 非阻塞取流，1- 阻塞取流

long IRealPlayHandle = NET_DVR_RealPlay_V40(userID, &struPlayInfo, NULL, NULL);

return IRealPlayHandle;
}

bool MainWindow::initSDK()
{
bool isok = NET_DVR_Init();
if(isok == false)
{
qDebug()<< "NET_DVR_Init error;error number is " <<NET_DVR_GetLastError();
QMessageBox::warning(this,"error","NET_DVR_Init error;error number is "+QString::number(NET_DVR_GetLastError()));
return isok;
}
//设置连接时间与重连时间
NET_DVR_SetConnectTime(2000, 1);
NET_DVR_SetReconnect(10000, true);
return isok;
}

bool MainWindow::uninitSDK()//好像没啥效果
{
bool isok = NET_DVR_Cleanup();
if(isok == false)
{
qDebug()<< "NET_DVR_Cleanup error;error number is " <<NET_DVR_GetLastError();
QMessageBox::warning(this,"error","NET_DVR_Cleanup error;error number "+QString::number(NET_DVR_GetLastError()));
return isok;
}
return isok;
}

MainWindow::~MainWindow()
{ uninitSDK();
delete ui;
}

void MainWindow::on_PreviewButton_clicked()
{
Preview_Channel1();
Preview_Channel2();
}
void MainWindow::Preview_Channel1()//通道1
{
if(userID==-1)
{
qDebug() <<"Need Login!\n";
QMessageBox::warning(this,"error","Need Login!");
return;
}
HWND hWnd = (HWND)ui->label->winId();//显示到label
NET_DVR_PREVIEWINFO struPlayInfo;
previewID = play(hWnd, struPlayInfo);
if(previewID==-1)
{
return;
}
qDebug()<<"channel 1 Preview Success!" << userID;
}
void MainWindow::Preview_Channel2()//通道2
{
if(userID==-1)
{
qDebug() <<"Need Login!\n";
QMessageBox::warning(this,"error","Need Login!");
return;
}
HWND hWnd = (HWND)ui->label2->winId();//显示到label2
NET_DVR_PREVIEWINFO struPlayInfo;
previewID2 = play2(hWnd, struPlayInfo);
if(previewID==-1)
{
return;
}
qDebug()<<"channel 2 Preview Success!" << userID;
}

void MainWindow::on_LoginButton_clicked()
{

NET_DVR_DEVICEINFO_V30 DeviceInfoTmp;

QSettings settings("./cameraConfig.ini", QSettings::IniFormat);
QSettings::Status status = settings.status();
// 获取指定键值示例
QString Ip = settings.value("ip_address/ip","192.168.6.208").toString();
int Port = settings.value("ip_address/port",8000).toInt();

userID=NET_DVR_Login_V30(Ip.toUtf8().data(),Port,(char *)"admin",(char *)"123456",&DeviceInfoTmp);//用户名和密码，读者可以加到配置文件里
if(userID<0)
{
qDebug() << "NET_DVR_Login_V30 error;" << "error number is " << NET_DVR_GetLastError();
QMessageBox::warning(this,"error","NET_DVR_Login_V30 error;error number "+QString::number(NET_DVR_GetLastError()));
return;
}
qDebug()<<"Login Success,userID:" << userID;
qDebug()<<"Login Success,userID:\n" ;
}

void MainWindow::on_StopPreviewButton_clicked()//两通道一起停
{
if(previewID!=-1)
{
if(NET_DVR_StopRealPlay(previewID)==false)
{
qDebug() << "NET_DVR_StopRealPlay error;" << "error number is " << NET_DVR_GetLastError();
QMessageBox::warning(this,"error","NET_DVR_StopRealPlay error;error number "+QString::number(NET_DVR_GetLastError()));
return;
}
previewID=-1;
qDebug() <<"Stop Preview1 Success!\n";
}
//------------------------
if(previewID2!=-1)
{
if(NET_DVR_StopRealPlay(previewID2)==false)
{
qDebug() << "NET_DVR_StopRealPlay error;" << "error number is " << NET_DVR_GetLastError();
QMessageBox::warning(this,"error","NET_DVR_StopRealPlay error;error number "+QString::number(NET_DVR_GetLastError()));
return;
}
previewID2=-1;
qDebug() <<"Stop Preview2 Success!\n";
}
}

void MainWindow::on_CaptureButton_clicked()//抓图
{
//channel1
if(userID!=-1)
{
NET_DVR_JPEGPARA IpJpegPara2;
IpJpegPara2.wPicQuality=0;
IpJpegPara2.wPicSize=0xff;

QDateTime current_date_time =QDateTime::currentDateTime();//当前时间
QString current_date =current_date_time.toString("yyyy-MM-dd_hh-mm-ss_zzz");//转换格式
current_date="d:\\Capture_Pic\\"+current_date+".jpg";//jpg格式
char* fileName;
QByteArray ba = current_date.toLatin1(); //
fileName=ba.data();

//channel2
if(NET_DVR_CaptureJPEGPicture(userID,1,&IpJpegPara2,fileName)==false)
{
qDebug() << "NET_DVR_CaptureJPEGPicture error;" << "error number is " << NET_DVR_GetLastError();
QMessageBox::warning(this,"error","NET_DVR_CaptureJPEGPicture error;error number "+QString::number(NET_DVR_GetLastError()));
return;
}
qDebug() <<"Capture Success!\n";
}

}

void MainWindow::on_LogoutButton_clicked()//好像没啥用，保留着
{
if(userID!=-1)
{
if(NET_DVR_Logout(userID)==false)
{
qDebug() << "NET_DVR_Logout error;" << "error number is " << NET_DVR_GetLastError();
QMessageBox::warning(this,"error","NET_DVR_Logout error;error number "+QString::number(NET_DVR_GetLastError()));
return;
}
userID=-1;
qDebug() <<"Logout Success!\n";
}
}

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