You can try libqtavi. It is a wrapper around the libgwavi. API looking simple and good integration with Qt classes. But only support MJPG codec and avi format and its bigger output size than mpeg/mp4, hevc/mkv… QAviWriter writer(“demo.avi”, QSize(800, 600), 24, “MJPG”);// set framerate to 24 fps and ‘MJPG’ codec writer.setAudioFileName(“audio.wav”); // set audio track … Read more
As my travels into the depths of PyQt5 continue, so shall I continue to update this answer with some of the shinier treasures I find. That being said, I am now taking a “rough draft” stab at a quick intro to PyQt5. I will also provide links to helpful resources. I am new to this … Read more
Example: Read json from file /* test.json */ { “appDesc”: { “description”: “SomeDescription”, “message”: “SomeMessage” }, “appName”: { “description”: “Home”, “message”: “Welcome”, “imp”:[“awesome”,”best”,”good”] } } void readJson() { QString val; QFile file; file.setFileName(“test.json”); file.open(QIODevice::ReadOnly | QIODevice::Text); val = file.readAll(); file.close(); qWarning() << val; QJsonDocument d = QJsonDocument::fromJson(val.toUtf8()); QJsonObject sett2 = d.object(); QJsonValue value = sett2.value(QString(“appName”)); … Read more
You need to install the webkitwidgets library. On Ubuntu, try this in a terminal: sudo apt-get install libqt5webkit5-dev On Fedora, the package has a different name, thus try: sudo apt-get install qt5-qtwebkit-devel Or on Fedora, via dnf: sudo dnf install qt5-qtwebkit-devel
The problem here is that there are two signals with that name: QSpinBox::valueChanged(int) and QSpinBox::valueChanged(QString). From Qt 5.7, there are helper functions provided to select the desired overload, so you can write connect(spinbox, qOverload<int>(&QSpinBox::valueChanged), slider, &QSlider::setValue); For Qt 5.6 and earlier, you need to tell Qt which one you want to pick, by casting it … Read more