Qt Forum - Recently Active Topics

Our forum is a bustling hub of activities for the mightiest minds in the universe. This page contains enough power to contain a list of topics within the past 24 hours.

  • Unsolved JSON over socket

    Unsolved JSON over socket

    In case you haven't seen this:https://doc.qt.io/qt-5/json.html Anway: QJsonDocument(jstring).object() // gets your top level QJsonObject From there you are accessing keys inside the object using...

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  • Unsolved Change QWebChannel kMaximumMessageSize?

    Unsolved Change QWebChannel kMaximumMessageSize?

    I'm using a QtWebEngine to display a Plotly graph in my Qt application (Pyside2, though I don't think that matters). I communicate between my app and the javascript using a QWebChannel, and I load...

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  • Unsolved Como incrementar e decrementar uma string (ip) com Key_UP e DOWN..

    Unsolved Como incrementar e decrementar uma string (ip) com Key_UP e DOWN..

    Olá @MSDiLieto. Seja bem vindo ao Qt Forum. Você está utilizando QLineEdit para editar seu IP ? Você pode sobreescrever a função keyPressEvent(QKeyEvent *event) em um QLineEdit customizado, e...

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  • Unsolved QMqttClient connects to a MQTT broker that needs certificate and private key?

    Unsolved QMqttClient connects to a MQTT broker that needs certificate and private key?

    Hi and welcome to devnet, What broker is that ? Can you give more details about your current setup ?

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  • Unsolved Qt/Android on Debian?

    Unsolved Qt/Android on Debian?

    Well... Use the adb command to e.g. list the devices, etc.

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  • Unsolved Deploy qt desktop app 'Driver not loaded'

    Unsolved Deploy qt desktop app 'Driver not loaded'

    @SGaist I don´t understand , do you mean this error to QODBC? QSqlDatabase: QMYSQL driver not loaded QSqlDatabase: available drivers: QSqlDatabase: an instance of QCoreApplication is required for...

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  • Unsolved QGraphicsView ImageCapture and Video Record Start Hangs Camera Stream

    Unsolved QGraphicsView ImageCapture and Video Record Start Hangs Camera Stream

    Out of curiosity, any particular reason to use QGraphicsView ?

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  • Unsolved What is pickling in C++ Qt if you're used to PyQt5?

    Unsolved What is pickling in C++ Qt if you're used to PyQt5?

    Pickling is serializing an object. Are you intending to reproduce an object by serializing its pointer? If so, then you are not going to get what you expect. A pointer points to a memory...

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  • Unsolved Qt3D & QSlider

    Unsolved Qt3D & QSlider

    Hi, This example shows how to use QCheckBoxes but you'll get the idea on how to mix controls and a Qt3D scene.

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  • Solved How to change the TabBar / TabButton "accent" location [Material]

    Solved How to change the TabBar / TabButton "accent" location [Material]

    @SHRINIDHI-UPADHYAYA and @Nifiro thank you both! (this forum and you guys are awesome!!) So there are two ways to circumvent the default logic applied to footers when using a QML Toolbar with...

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  • Unsolved Problem with UWP kit

    Unsolved Problem with UWP kit

    Hi, Please don't post the same question in multiple sub-forum. One is enough. Duplicates Closing this one.

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  • Unsolved Utilizing MVC with Qt

    Unsolved Utilizing MVC with Qt

    @Omni_Philm said in Utilizing MVC with Qt: Hello all, I have been looking into utilizing the MVC with Qt for a couple of days now and I have some questions to clarifiy a few details. So first, I...

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  • Unsolved Understanding QAbstractListModel in python/QML program and C++ equivalent

    Unsolved Understanding QAbstractListModel in python/QML program and C++ equivalent

    @Hodenbrecher What I am not sure of is if I have to define apply as a public slot: or as a Q_INVOKABLE Slot and Invokable macros are used to different situation. Slot is used to allow a...

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  • Unsolved License for custom QPA plugin implementation

    Unsolved License for custom QPA plugin implementation

    Do i need license to modify and use qminimal qpa

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  • Unsolved Analyzing a complete Qt project thoroughly

    Unsolved Analyzing a complete Qt project thoroughly

    @tomy said in Analyzing a complete Qt project thoroughly: Now, let me re-ask this question, please: where/when in code the overridden function clone is called? Qt calls it when it needs a new...

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  • Unsolved How to compile an iOS application in Qt?

    Unsolved How to compile an iOS application in Qt?

    Did you check your Xcode configuration to see if there's anything related to that ?

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  • Solved UDP data + circular buffer

    Solved UDP data + circular buffer

    Ring buffers are only applicable in specialized situations where you need a container of constant memory footprint and quick deque access of elements (such as hardware device I/O. I can see such...

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  • Unsolved How to make a SVG at tab Widget ?

    Unsolved How to make a SVG at tab Widget ?

    Hi, One option is to use a QGraphicsPixmapItem.

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  • Unsolved QNetworkRequest for https

    Unsolved QNetworkRequest for https

    Hi, How did you install Qt ? Since you're on a linux distribution, and before hunting down what's going on with Qt 5.12.3, you can check that your code is working correctly using your distribution...

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  • Unsolved Qt Creator won't start

    Unsolved Qt Creator won't start

    Hi and welcome to devnet, Do you have any error message ?

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