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Qt Development

Everything development. From desktop and mobile to cloud. Games, tools, 3rd party libraries. Everything.
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  • This is where all the desktop OS and general Qt questions belong.
    84k 458k
    84k Topics
    458k Posts
    PerdrixP
    If I set a name filter for QFileDialog that looks like: "RAW Files (*.cr2 *.cr3 *.crw *.nef *.mrw *.orf *.raf *.pef *.x3f *.dcr *.kdc *.srf *.arw *.raw *.dng *.ia *.rw2)" on Windows and macOS I am shown (e.g.) files with extensions of .cr2 and .CR2 On Linux Ubuntu 24.04.3 (Noble Numbat) and Linux Mint (which uses Thunar) I am only shown files with extensions .cr2. On Lubuntu (which uses PCmanFM-Qt file manager) I am shown files with both .cr2 and .CR2 extensions. Should I expect this level on inconsistency between the different Linux systems? Do I really need to specify (e.g. for .raf files) .raf, .RAF, .Raf, .rAf, .raF, etc. etc.) Thanks, David

  • The forum for developing everything embedded: Linux, WinCE, Symbian, MeeGo... you name it.
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    14k Topics
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    A
    II wanted to post the source code for a test app here, so one could compile it and see what it looks like. But all my attempts end with a message that the post was recognized as spam, and I can't attach the source code here. So I posted all source code at the StackOverflow https://stackoverflow.com/questions/79801790/qt-5-15-6-10-qml-with-webview-in-the-widget-app-shows-empty-field-instead-of

  • Looking for The Bling Thing(tm)? Post here!
    20k 78k
    20k Topics
    78k Posts
    D
    Thank you @JKSH this really helped.

  • This is a discussion space for

    • for audio / video playback and recording
    • media formats and codecs
    • camera and screen sharing functionality
    45 188
    45 Topics
    188 Posts
    G
    I'm wondering what is the status of video playback in WebAssembly - I've not been able to get it to work even using the example code in 6.10.0. The documentation mentions it does work with limitations but it also says the multimedia module is not supported in WebAssembly? I'm just using the QML Media Player Example on 6.10.0 but a minimal example gave the same result. Audio channel of the video files works fine, is there something I'm missing? Thanks!

  • Have a question about Qt Creator, our cross-platform IDE, or any of the other tools? Ask here!
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    8k Topics
    36k Posts
    aha_1980A
    Hi @Tyler-Shellberg, on my Ubuntu Linux 24 I installed the bash-language-server with snap and then setup the language client as follows: [image: 43ae0eee-6f32-44de-9337-2b40e6b5595a.png] and this works for me. If you have to set sh.exe as executable, then please try to add start as argument. Regards

  • Your Qt just doesn't want to build? Your compiler can't find the libs? Here's where you find comfort and understanding. And help.
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    10k Topics
    51k Posts
    SGaistS
    @major_tom3 hi, That's surprising that you have to create that symlink manually. Usually the package manager does that for you on installation.

  • What can we say - we like games. And you can use Qt to write some. Questions? Ask here.
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    875 Topics
    4k Posts
    8Observer88
    Debug drawer for Box2D v3 using QPainter It uses b2World_Draw to draw Box2D objects for debugging. You can just download and run it without compiling libs because it include libs for Windows (MinGW) and Android. Source: https://github.com/8Observer8/debug-drawer-qpainter-box2dv3-qt6-cpp [image: 2a9af153-b7d2-40a0-9702-5fdfb79ccf52.png]

  • Discussions and questions on QtWebEngine
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    4k Posts
    Jorg SingendonkJ
    This is a problem of the webengine itself. It looks like its not proper synchronizing the angle part with its html render engine. It started with QT 6. Lots of people complained about it but QT never fixed it. (the Chromium engine is really hard to understand) I am still using QT 5.15 which does not have that bug. Still webgl on QT 6.xx is a no go - it doesn't matter if you use python or c++ Very sad.

  • You're using Qt with other languages than C++, eh? Post here!
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    867 Topics
    3k Posts
    N
    Indeed, it didn't work for PySide2; I had to implement a workaround. The option is present in the shiboken6 documentation, but not in shiboken2. I conclude it is not supported by the latter. Thanks

  • Combining Qt with 3rd party libraries or components? Ask here!
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    1k Topics
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    S
    Thank you everyone for taking your time to reply me. The mistake was that, the invokation of the functions were in different qml files, and I had used different instances of the class in the 2 files. I finally fixed it :)

  • For discussion and questions about Qt for Python (PySide & Shiboken)

    3k 15k
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    U
    I built Qt from source on my Mac since the latest Qt online installer only installs 6.9.3. I found the dylib file after I built from source and copied it to where it was expected. I was able to start my app. Is there anything I need to do to raise awareness of this issue so it's fixed in the packing the release next time?

  • Specific issues when using Qt for WebAssembly

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    460 Topics
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    F
    Hi, I'm building a Qt application that loads large files, so I need more than 4 GB of memory. I know that with 64-bit WebAssembly this wouldn’t be a problem, but I can’t find any option to build Qt with wasm64. Did I miss something, or is Qt not yet ready to be built with WebAssembly 64-bit? If that’s the case, do you know when it might become possible? Thanks,

  • Discussions and questions about Qt Quick Ultralite and using Qt on microcontrollers in general

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    G
    [image: 68c477a3-5790-4995-942c-1394043685d7.jpg] I’m using Qt Quick Ultralite (QUL) 2.11 with a Spark FMP font. Some glyphs are rendering out of order when updating text dynamically. font engine is, fontEngine: "Spark" FontFiles { files:["fonts/SimpleSymphonie.fmp"] } Row { spacing: 2 Text { text: qsTr("%1 %2").arg(day).arg(month); font.pixelSize: 16; font.weight: Font.DemiBold } Text { text: hrmMins; font.pixelSize: 16;font.weight: Font.DemiBold } } Sometimes the last glyph of the time string (e.g., "12:00 PM") is rendered at the beginning or overlaps with other characters. The font map itself is correct and covers all characters. What could cause this out-of-order glyph rendering in Qt Quick Ultralite with FMP fonts, and how can I reliably update dynamic text without glyph placement issues?

  • The forum for discussing the Qt Digital Advertising Platform

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    16 Topics
    39 Posts
    E
    @nayka Can I use QtDigitalAdvertising on PC applications? Or is it only allowed for use on Android or iOS mobile devices?

  • For discussion and questions about Qt Insight

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    11 Topics
    20 Posts
    jsulmJ
    @Alejandro_qt_ Here is an example how to build qtbase module: https://stackoverflow.com/questions/50022325/building-qt-module-from-source