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News and discussion for the Qt Framework. Subreddit: https://www.reddit.com/r/QtFramework Powered by : @r_channels & @reddit2telegram
We are looking for a developer to develop the Qt Widgets part of the new Kde theme engine.
https://invent.kde.org/plasma/union#getting-started
https://redd.it/1qi9kgk
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Plotting tool
Hello people. I'm starting a project where I need to plot data in real time. Data will come through ethernet (this part I have almost covered), and I need to plot it in real time.
Is there a library or tool set you can recommend for that?
Thank you in advance
https://redd.it/1qed7hc
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Built a PDF reader with Qt and MuPDF
https://dheerajshenoy.github.io/dodo
https://redd.it/1qdc9tz
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Pushing remote updates/automatically updating?
What is the best way to achieve this? I've been messing with the installer framework, but I realized I can push updates without it (unless this is the best way). I want the updates to silently install without promptly users to accept it, at least for critical updates. Tips/advice?
https://redd.it/1qc06ps
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Looking for testers for Tasket++ — simple Windows tool to automate user actions, free and open source (new UI)
https://redd.it/1qar0aj
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Made a minesweeper clone
https://preview.redd.it/z8dm8a7mrmcg1.png?width=1059&format=png&auto=webp&s=f0a84232a297bcde7f323c02e878945ac0f12051
Hey guys, I made a minesweeper clone with QWidgets a while ago and I thought I would share it here. I think I got the old Windows 98 minesweeper theme down pretty well, but the code itself is pretty horrendous (which is why I stopped making it).
GitHub: https://github.com/somedude72/minesweeper/
https://redd.it/1q9n9sq
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Baidu's CapCut is written using Qt C++ and QML
https://youtu.be/n0jDZSI4tXg?si=5bgs9JDacfTkZNMS
https://redd.it/1q9gsvc
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I created Qt and QML example usage of my 3D model display/render lib, let me know what you think!
https://redd.it/1q8zlub
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Qt 4 dance
https://www.youtube.com/watch?v=NbTEVbQLC8s
https://redd.it/1q5jm6d
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Can't install Qt Android kits
No matter which version of Qt's Android kit I select in the Maintenance Tool (or the online installer), it always installs the Desktop version instead of the Android target. In the step just after choosing the kit in Maintenance Tool, if I select only Android, it shows Desktop with a few GB size, and Android with 0.00 GB size.
This is true for all versions of Qt from 6.5 to 6.11 beta!
I'm on macOS, and my already-installed Qt 6.10.1 (iOS, desktop and Android) all work fine. But there is a regression due to which I need to install pre-6.9 version of Qt for Android and I just can't install it no matter what.
Can someone try and see if they can install it and the problem is only on my end?
https://redd.it/1q6fhxw
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My Idea of Bringing Material Design 3 to QWidget
https://redd.it/1q7384j
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What's the best way to get PCM audio data from a Mp3 file?
I've seen a few people use ffmpeg with Qt, but is there an easier way to get raw audio data?
https://redd.it/1q45tfh
@qt_reddit
QML does not handle setData returning false
I've bound my text input to a role in my model. setData() is called on editingFinished, after the user has entered a new value. In some cases, the user might enter invalid data and setData() will return false. In such cases, the text input's text does not revert to what's in the model.
I've been able to get around this by never returning false, and always emitting dataChanged() in setData(). I don't have a problem with this in principle, but it doesn't seem like the "right" way of doing things. Is there a better way or am I on the right track?
https://redd.it/1q41ikk
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Why is spacer not working ?
https://redd.it/1q3q6g1
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Tasket++ — simple Windows tool to automate user actions, free and open source — new UI, looking for testers
https://redd.it/1q0hcly
@qt_reddit
dodo pdf reader : v0.6.0 released!
https://github.com/dheerajshenoy/dodo/releases/tag/v0.6.0
https://redd.it/1qiv0g4
@qt_reddit
Newbie Here, Need some help with Group Box Adjustment
I want the Create Project Sizebox to be of fixed size, I managed to do so but now it seems to be sticking on left and center I want it to be top and center.
https://redd.it/1qe6pnx
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Qt's Developer User Survey 2026
https://www.surveymonkey.com/r/QtDevSurvey2026
https://redd.it/1qc6fxo
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How to start qt for gui development for embedded system ??
I have just started an internship and my manager told me to learn qt from where I can start
https://redd.it/1qbp25n
@qt_reddit
Plan QML code is visible in executable
I can see all my QML code (comments included!) in my executable, and for obvious reasons this is not something I want.
I've tried to compress using:set_property(TARGET myApp PROPERTY AUTORCC_OPTIONS "-threshold;0")
...as described in https://qt-project.atlassian.net/browse/QTBUG-102785, but no such luck.
Is there another workaround to obfuscate the code?
Using Qt 6.10, Cmake, Windows, and, qt_add_qml_module, which I would have expected to trigger qmlcachegen.
https://redd.it/1qaf0pp
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Windows + Frameless Window + QWidget/QML Mixing: Architectural Limitation or Misuse?
I am curious about the community’s real-world experience with this pattern on Windows.
In a PySide6 / Qt 6 application, I am using a **frameless window** on Windows (custom title bar, shadow, rounded corners). The UI is a mix of traditional **QWidget-based layout** and a **QML area embedded via QQuickWidget / QQuickView**.
On Windows, once the window becomes frameless and effectively layered (e.g. translucent background, custom shadow), the **QML region becomes transparent or fails to render**, while the QWidget parts continue to work correctly.
From my investigation so far, this seems to be related to:
* Windows layered windows (DWM / DirectComposition)
* Qt Quick’s GPU-based rendering pipeline
* The limitations of embedding a Qt Quick scene inside a QWidget hierarchy on Windows
At this point, it feels less like a bug and more like an **architectural limitation of mixing QWidget and Qt Quick under layered / frameless windows on Windows**.
I’d like to hear from others:
* Have you successfully shipped a **frameless window on Windows** with **QWidget + QML mixed**?
* Did you end up going **full QML** or **full Widgets** to avoid this?
* Are there any undocumented tricks, or is this simply a “don’t do this on Windows” scenario?
* How do mature Qt applications approach this today?
Looking forward to hearing how others have approached this.
https://redd.it/1q9j1yn
@qt_reddit
Missing lupdate button ?
Hi,
I'm working on a .pro project (QtCreator18.0.1 on Windows) and I want to translate the UI. I created the qrc & TS files but I can't find the lupdate button in Tools/External to update the TS file...
I only saw solutions for CMake files to automatically track/update translations but nothing for .pro file.
https://redd.it/1q9cxjn
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What is the most beautiful Qt app you have seen ?
Same as Title
https://redd.it/1q81bs8
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Tasket++ — simple Windows tool to automate user actions, free and open source — new UI, looking for testers
https://redd.it/1q67om3
@qt_reddit
Qt.PopupWindow Closing When Clicking Outside of the Main Application Window
Hello, I am working on a common Popup component I use in my application. I have dim and modal set to true. I also have the closePolicy set to Popup.NoAutoClose. This component works but I needed to change it from being an Item to a Window so that it would appear over my other Window components. So I set the property popupType to Qt.PopupWindow. This works (somewhat) in that it appears over everything, it dims, and is modal. However, when I click outside of the main application window it closes. Why is this happening?
I have attached an image of the basic construction of my popup.
https://preview.redd.it/xjudg7fq00cg1.png?width=388&format=png&auto=webp&s=e29ccb2327d09537023932aa97921dffad1bb090
https://redd.it/1q6snrr
@qt_reddit
Qt: How to force text color to always be black globally (without setting stylesheet per widget)?
I distribute Qt-based software and on one client the default text color is white instead of black.
Because the app uses a light background, the text is almost invisible.
Is there a way to force all text to be black globally (application-wide), without setting stylesheets on every widget individually?
Differences:
https://preview.redd.it/9mmxrwcznkbg1.png?width=1434&format=png&auto=webp&s=b7bf4411272aa98ebe7cb829627dee68b546ec16
https://preview.redd.it/uh5kqzcznkbg1.png?width=1140&format=png&auto=webp&s=26710309ed25f28131cabf7f17d9b9b4e0a9e24c
Thanks for help!
https://redd.it/1q4tbr2
@qt_reddit
A thanks to Qt for making Fernanda possible
https://github.com/fairybow/Fernanda
https://redd.it/1q43ndm
@qt_reddit
Sprite Animator in my free App - "3Vial OS" [Python / PySide6 / PyOpenGL / NumPy]
https://redd.it/1q3wnie
@qt_reddit
llvm, debugging, no application output
This topic has already been discussed but I haven't found a specific solution. Windows, llvm-mingw compiler, and lldb debugger. For some time now nothing has been appearing in the application output in debug mode. I am certain that I haven't changed any settings. I've tried everything, including solutions that have more side effects than the are worth. Recently created a console in the application:
AllocConsole();
freopen(“CONOUT$”, “w”, stdout);
freopen(“CONOUT$”, “w”, stderr);
It worked for a few days and then stopped! I use llvm because with regular mingw the startup time is unacceptable.
Any proven ideas?
https://redd.it/1q3pjhg
@qt_reddit
Build KDE source code using kde-builder with Qt installed using the Qt Online Installer tutorial
https://www.youtube.com/watch?v=qGoQxBoKOTs
https://redd.it/1q14kit
@qt_reddit
