qprogressbar

If I want to update a QProgressBar on the view layers from a loop on the logic layer (such as each iteration will update the progress bar), what is the proper way to do that? Thanks class LogicClass : public QObject { Q_OBJECT public: explicit LogicClass(QObject *parent = 0); int max(){ return 100; } int min(){ return 0; } void emit50(){ emit signalProgress(50); } signals: void signalProgress(int); public slots: }; MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow) { ui->setupUi(this); LogicClass logic; ui->progressBar->setMaximum( logic.max() ); ui-

When using the following code my application stalls after a couple of seconds. And by stalls I mean hangs. I get a window from Windows saying wait or force close. I might add that this only happens when I click either inside the progress bar window or when I click outside of it so it loses focus. If I start the example and do not touch anything it works like it should. from PyQt4 import QtCore from PyQt4 import QtGui class ProgressBar(QtGui.QWidget): def __init__(self, parent=None, total=20): super(ProgressBar, self).__init__(parent) self.name_line = QtGui.QLineEdit() self.progressbar = QtGui

I built a PyQt5 GUI to do some Selenium testing. Everything works as expected, except for the PyQt progress bar. In the first example below, where I use the Selenium browser, the progress bar just jumps to 100%, at the end, when the browser closes. But, the Selenium works as expected. def test(self): self.completed = 0 browser = webdriver.Firefox() links = ['http://www.somesite.com/', 'http://www.somesite.com/page2', 'http://www.somesite.com/page3'] for link in links: browser.get(link) self.completed += 100 / len(links) time.sleep(2) print(link) self.progressBar.setValue(self.completed)