qtcore

I am running an ssh tunnel from an application using a QProcess : QProcess* process = new QProcess(); process->start("ssh", QStringList()<<"-L"<<"27017:localhost:27017"<<"example.com"); So far it works great, the only problem being that there is no way for me to see when the port has actually been created. When I run the command on a shell, it takes about 10 seconds to connect to the remote host after which the forwarded port is ready for usage. How do I detect it from my application? EDIT: As suggested by vahancho, I used the fact that post-connection there is some output on the terminal that

Im my app based on QML I use Camera and CameraCapture to capture an image from the camera. After it was captured I want to store captured image in application data folder with CameraCapture.captureToLocation() . But I have no idea how to get path to this folder. So my question - how can I get path to application folder wit write permissions? Is there way in Qt to get it? It should be system specified folder, I guess. For example in Android it should be /data/data/AppName. As I see LocalStorage creates its files in some similar place. /data/data/AppName is not mapped in QStandardPaths , but I

Before I can continue to implement recursive dir/file search with some filtering for some tasks I want to know if Qt/PyQt has analogue of os.walk . Main app is a GUI app in PyQt4 and all text fields in a QString s and path objects (files, directories) uses QFile , QDir , QFileinfo for manipulations. As analogue I mean fast and convenient recursive fs-tree traversal tool. Should I use os.walk or something much faster and more informative? PS. Maybe this can help me but I'm not sure if this more efficient than os.walk . Should I use os.walk or something much faster and more informative? There is

How Can I convert QString to decimal ? In C# code it look like that: public static decimal ConvertToDecimal(string tekst, bool upperOnly) { decimal num = 0m; decimal num2 = 1m; string text = upperOnly ? "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ" : "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234"; int i = tekst.Length - 1; while (i >= 0) { num += text.IndexOf(tekst[i]) * num2; i--; num2 *= text.Length; } return num; } lpapp As per documentation : int QString::toInt(bool * ok = 0, int base = 10) const Returns the string converted to an int using base base , which is 10 by default and must

Is there simple way of replacing only first occurrence of some substring by other substring in QString? It can be at any position. You could try this: QString str("this is a string"); // The initial string. QString subStr("is"); // String to replace. QString newStr("at"); // Replacement string. str.replace(str.indexOf(subStr), subStr.size(), newStr); Resulting string will be: that is a string There is no convenience method for the operation you wish to have. However, you can use the following two methods to build your custom operation: int QString::indexOf(const QString & str, int from = 0, Qt

I have the following code: void class::Testfunc() { QTimer* timer = new QTimer; QObject::connect(timer, &QTimer::timeout, [this](){ emit Log("Time out..."); TestFunc(serverAddress, requestsFolderPath); // deleteLater(); //*** why does this crash if used to replace the connect below? }); connect(timer, &QTimer::timeout, timer, &QTimer::deleteLater); timer->setSingleShot(true); timer->start(1000); } A single shot timer is created with a timout connected to a lambda function that logs the entrance to the lambda function each second (prints text to stdout) and calls the function again. This works