General and Desktop

@Simplicius-Simplicissimus said in [Translations] documentation on embedding translations in the executable.: The QTLinguist Documentation included in https://doc.qt.io/qt-6/reference-overview.html does not explain how to embed translations in the executable file. But the other source I linked does... Literally the first section there: The Qt Resource System The Qt resource system is a platform-independent mechanism for shipping resource files in an application. Use it if your application always needs a certain set of files (like icons, translation files, images), and you don't want to use system-specific means to package and locate these resources. Most commonly, the resource files are embedded into your application executable, or in libraries and plugins that are loaded by the application executable. Alternatively, the resource files can also be stored in an external resource file. The resource system is based on tight cooperation between Qt's rcc resource compiler, the build system, and the Qt runtime API. This is what @Christian-Ehrlicher told you... and what I was referring to here: @Pl45m4 said in [Translations] documentation on embedding translations in the executable.: Read about the Qt Resource System, if you don't understand. @Simplicius-Simplicissimus said in [Translations] documentation on embedding translations in the executable.: I do not need to ship the translation files with the program. Using the resource system you "ship" them as bytecode embedded in your binary. You don't want to provide 17 files for 17 different languages, right? What else do you need?!

@majorRonk - I encountered the same issue, using Windows 11, Qt6.8.2. In QtCreator 15 I saw the .rep as you did. In QtCreator 16 it was fixed - https://bugreports.qt.io/browse/QTCREATORBUG-32522 . Probably worth marking your discussion as fixed.

@Qt6User said in Qt6.8.1 Windows is not having qsqloci.dll: Looks like setting -DQT_GENERATE_SBOM=OFF made the error go. Yes, that is a known issue with 6.8.1

I’ve successfully built QtWebEngine and QtPdf for Windows ARM. If anyone’s interested, I’ve documented the full guide here: https://github.com/fauzanelka/qtwebengine-arm64

@YiShengPiAn Your widget position changes. Add print to paintEvent to check its coordinate x and you may be be able to find out what causes the horizontal movement of your widget. x should be fixed.

It appears that this has been fixed in Visual Studio 17.14.2

Just start by building for debug, running for debug from Creator. If program generates an "unhandled signal" that should break in the debugger immediately where it happened. Then find stack view pane and look at the traceback.

@ECEC said in Composition vs Aggregation when working with models: I suppose I wouldn't even need to subclass University, Course and Module from a generic TreeItem. I could simply store the pointer in internalPointer and then static_cast back to the required type depending on what level we are at. Exactly, if that is what suits best.

Hi @SmoothOne, I have encountered similar performance challenges when implementing scrolling marquees in QML, on resource-constrained devices like the Raspberry Pi 4 and 5. Optimize Animation Techniques: While NumberAnimation and Flickable are common choices for creating scrolling effects. consider ShaderEffect for offloading some of the rendering to the GPU, which can lead to smoother animations. Profile App: Utilize Qt's built-in profiling tools to identify bottlenecks. can help determine if the issue stems from the QML layer, the rendering pipeline or elsewhere. it can provide insights into CPU and GPU usage & helping you pinpoint areas for optimization. Simplify Scene Graph: Avoid nesting multiple layers of elements unnecessarily & make sure that only visible elements are being rendered. Hardware: Make sure OpenGL or Vulkan is being utilized effectively for rendering Good Luck..

Are you using display scaling on the HiDPI monitor? Is everything else (except for the PDF part) rendered the same size if using either Wayland or X11?

@cristian-adam said in Qt 6 compiles twice slower that Qt 5: Yes, as of today (may 2025) we could use the latest versions of the three compilers to build C++ code with modules. It is quite overwhelming to compile such a large library as Qt if you are still a beginner or even if you are at an intermediate level. I believe MSVC is doing it right. But, at least one of the other compilers makes modules incompatible if different compiler flags are used. Which would actually mean you need to compile Qt with the compiler flags you are using for your project to be able to use C++ modules with Qt. The future with modules is not as bright as it was promised. (Microsoft has also proposed a module standard exchange format that all compilers could/should use. If supported this could solve this problem.)

FYI: Even when these devices would be supported by QtSerialBus, you could not change the bitrate programmatically; only by the gateways web interface: https://forum.peak-system.com/viewtopic.php?f=41&t=7345

@Vincent-Blankfield said in Strange output when I use QString fileName = QFileDialog::getOpenFileName(): and how to get rid of it? Uninstall symantec endpoint protection or ask them to fix it.

I tested with a freshly formatted USB stick and new files added to it. Same result. From the looks of it, it seems to be a OS issue with their ExFAT driver implementation. Several threads on different forum report similar issues.

Use a recent Qt6 version or use the windowsvista style.

I figured it out on my own. The Forecast widget can be promoted, and that promoted widget can be used in another ui file

@Mark-K-R-Walker If your header really looks like you showed us, it's no wonder you get compile errors: #ifndef SOUND_H #define SOUND_H ... class Sound : public QIODevice { Q_OBJECT private: QMediaDevices *AllMediaDevices = nullpointer; QAudioDevice DefaultAudioOutputDevice; public: Sound(); }; // <- Closing curly brace and semicolon are missing! #endif // SOUND_H Please add the }; before the #endif and try again. Regards

@inbilla hi, Are you using custom models ? If so, are you also taking advantage of the last argument of the dataChanged signal ? This one limits the roles that the view should get data for in order to update itself.

@Axel-Spoerl whatever i did, i couldn't implement QEvent::MouseButtonPress and read empty space in event filter of a QListWidget; resorting to QListView however solved my problem. what i really needed was setCurrentItem(nullptr) setMinimumHeight (at least for QListView ) changes the pane's proportions; i want to add empty area within the pane so the extra space is added for scrolling.

If you want to prevent that a user to close you app you shoud: implement the closeEvent() event to reply "no". work with machine criteria to disable task manager etc to normal users. Hi, if you want to try to use your app (with gui) as windows service you can use this. https://www.denisgottardello.it/InstallAsService/index.php The gui will not be visible.