General and Desktop

@sgaist thank you!

Hi, thanks you for answer. The scroll area in my application is inside another widget, the main window, and it has an illustrated background. The problem is for main window not the content of the scroll area. Anyway, I found a workaround, I set the same background for the main window and the scroll bar, so the scroll bar is opaque but looks transparent. I still wonder why is there this strange behaviour with the scroll bar, but this topic can be considered as solved as I found a way to get around this.

Well, the resource system does not treat the files any different: #include <QCoreApplication> #include <QFile> #include <QDebug> int main(int argc, char *argv[]) { QCoreApplication a(argc, argv); QFile html(":/html/index.html"); QFile jquery(":/html/jquery.js"); qInfo() << "html.size" << html.size(); qInfo() << "jquery.size" << jquery.size(); return a.exec(); } However, I did this as a console app. Cannot imagine other types of Qt projects would treat any different. The data I put in each file: jquery.js index.html

@circuits said in Differences between qputenv() and specifying env variables in kit: now I want to pull them out of main.cpp and specify them in my kit so I set the base enviorment to "System Enviorment" Are you aware that by removing the code from main.cpp you'll need to setup such environment variables yourself if when running your application on its own

@leon_2001 I never used JSON scheme so I don't know about this point. But depending of the number of the fields in your file, it should not be so difficult to check the format "manually" using Qt JSON api. You could maybe generate the JSON file at compilation. The choice of the method (json + pure virtual, json only, pure virtual only...) is up to you and what you need for your final application.

Hi Super. it looks nice. Please post mark as solved if possible.

@psnarf said in QByteRef missing documentation: Just a heads-up. QByteRef on https://doc.qt.io/qt-5/classes.html points to https://doc.qt.io/qt-5/qbyteref.html, which does not yet exist. Lots of dangling references in the QByterArray doc. qbytearray.h defines a class QByteRef containing a QByteArray& and an int, so it does indeed exist. Just missing the documentation. Thanks for the heads-up. It looks like previous versions of Qt did not create links (e.g. https://doc.qt.io/qt-5.12/qbytearray.html#back-1 ), but Qt 5.13 now creates dangling links. Could you please submit a report to https://bugreports.qt.io/ ?

I tried this on windows and it seems QtCreator will not accept wasm-emscripten mkspec at the kit level. But the QtCreator preview does.

@christian-ehrlicher : Thank you ... I needed to add just one line of code to the function which sets up the data in the tree model ... now it is working properly!

You have to update the example given in the documentation to match what you have on your system.

Added elements in vector and so was able to to them turn.

Hello thanks for your reply. I alreay use this function for sort the QVector<QColor> but the result is not very good. The best result is this comparaison : int compare(const QColor &a, const QColor &b) { return a.rgb() < b.rgb(); } I wrote this code, but the colors the sort does not give a result does not give a gradient. int compare(const QColor &a, const QColor &b) { if(a.hue() == b.hue()) { if(a.saturation() == b.saturation()) { return (a.lightness() <= b.lightness()); } return (a.saturation() <= b.saturation()); } return (a.hue() < b.hue()); }

I finally found the trick. Write my own macro that doesn't blindly call qRegisterMetaType #define MYAXTYPE(Class) \ factory = new MyAxType<Class>(typeLibID().toString(), appID().toString()); \ if( !QMetaType::isRegistered(QMetaType::type(#Class"*")) ) \ qRegisterMetaType<Class*>(#Class"*"); \ keys = factory->featureList(); \ for (it = keys.begin(); it != keys.end(); ++it) { \ factoryKeys += *it; \ factories.insert(*it, factory); \ creatable.insert(*it, false); \ }\

Finally I solved my problem. In the same directory I created another python file with the following code: MyPyQt.py -- coding: utf-8 -- pylint: disable=missing-docstring pylint: disable=no-name-in-module import sys from PyQt5.QtWidgets import QApplication, QWidget from rgb_controller import Ui_Form app = QApplication(sys.argv) window = QWidget() ui = Ui_Form() ui.setupUi(window) window.show() sys.exit(app.exec_()) When I run the code, the widget appears on screen

In my case, disconnecting all signals relating to QNetworkReply from all slots causes to abort() not works. disconnect(m_reply, nullptr, nullptr, nullptr); abort function works normal after commenting this line.

@goddard said in Qt5.11 VS17 "Object reference not set to an instance of an object" issue: I have this issue as well and nothing works. Just trying to import an existing project. Go to Extensions > Qt VS Tools > Qt Options, and add a valid Qt Version. See https://bugreports.qt.io/browse/QTVSADDINBUG-647

As @SGaist pointed out you don't fill _sockets anywhere and as I pointed out you don't need to search the socket in _sockets at all since you already cast QObject::sender() to the correct QTcpSocket although qobject_cast or dynamic_cast should be used instead static_cast