// change the value, I used two ways to try it, but both failed. QDomNodeList domNodeList1 = m_domDoc.elementsByTagName("text"); // way 1 QDomText domText = domNodeList1.at(0).toText(); domText.setNodeValue("60"); qDebug() << "way 1" << domText.nodeValue(); // way 2...
So my updated question is, how to use thesetData(const QVariant &userData)to assign indices to my action items. Please advise. mainwindow.h #ifndef MAINWINDOW_H #define MAINWINDOW_H #include <QMainWindow> #include <QDebug> #include <QSignalMapper> namespace Ui { class MainWindow; } class...
QTabWidget *t = new QTabWidget(); //I needed the stacked widget so I can use its geometry to calculate the empty corner size QStackedWidget *stack_widget = t->findChild<QStackedWidget*>("qt_tabwidget_stackedwidget"); t->setMinimumSize(800,600); t->addTab(new QWidge...
@slouken I have a project on windows and the project can work well. The project is wrote on qt. When I rebuild it on qt android, I found that SDL2 using on android must bind java. I want to know how I can just add the *.so to use SDL2? S...
Now to show you what value we get, we use the qDebug() function to output the data from the lineEdit element. Let's say, you were to create another lineEdit element. Say you need to create a program that retrieves multiple sets of data from a user. ...
qDebug() << "===str_ser" << QString::fromStdString(str_ser); #endif//SerializeToArray [pass]constintbyte_size = map_info_res.ByteSize();chararry[byte_size]; map_info_res.SerializeToArray(arry, byte_size); str_ser =std::string(arry, byte_size);qDebug() <<"===str_ser"<<...
qDebug()<<"PEM_write_bio_RSAPublicKey() error"; BIO_free_all(bp_public); BIO_free_all(bp_private); RSA_free(r); BN_free(bne); return0; } //save private key bp_private=BIO_new_file("private.pem","w+"); ret=PEM_write_bio_RSAPrivateKey(bp_private,r,nullptr,nullptr,0,nullptr...
We’re going to use aQGraphicsViewwidget to display the video frames read using OpenCVVideoCaptureclass. We’ll also use aQLineEditwidget to get the user entered camera index, file path orRTSPfeed URL. Here’s a screenshot of the simple design of our user interface: ...
PrimeRunnable(QWidget* receiver, volatile bool *stopped, qulonglong n); bool isPrime() const {return m_prime;} private: void run(); qulonglong n; QWidget* receiver; volatile bool *m_stopped; bool m_prime; }; We usequlonglongto store prime number candidates. qulonglong i.e quint64...
// qDebug() is a function to display the result of variables qDebug() << "win_handle: " << win_handle; qDebug() << "monitor_handle: " << monitor_handle; qDebug() << "num_of_monitors: " << num_of_monitors; qDebug() << "num_physical_monitors_success: " << num_physical...