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 Creating a Virtual Instrument with Qt

    Unsolved Creating a Virtual Instrument with Qt

    @mrjj said in Creating a Virtual Instrument with Qt: Hi QTextToSpeech is a technology that can speak written text. Like reading out loud emails. However, it contains no extra function...

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  • Unsolved Enviar un mail usando Exchange

    Unsolved Enviar un mail usando Exchange

    @mrjj Sorry, Spanish. I wrote it in the translator and I did not copy it in English

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  • Unsolved `cointainsMouse` is `false` after setting mouse coordinates from c++ backend

    Unsolved `cointainsMouse` is `false` after setting mouse coordinates from c++ backend

    Which OS and/or windowing system is this? In principle the window manager should send you a mouse event with the new position after it processes the call to change the cursor position, could you...

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  • Unsolved crash in QListWidget::dropEvent when I add a UserRole to my QListItemWidget :'(

    Unsolved crash in QListWidget::dropEvent when I add a UserRole to my QListItemWidget :'(

    Alright, this seems to work fine to manually handle the internal move: First in the startDrag override I encode the row of the selected items I'm moving: void...

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  • Unsolved Maps

    Unsolved Maps

    https://doc.qt.io/Qt-5/qtlocation-minimal-map-example.html

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  • Unsolved implementing Qstackedwidget programatically

    Unsolved implementing Qstackedwidget programatically

    Hi just as a note if i run your code without the button part, i do get the expected result:

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  • Unsolved configure errors: Disabling X11 Accessibility Bridge: D-Bus or AT-SPI is missing.

    Unsolved configure errors: Disabling X11 Accessibility Bridge: D-Bus or AT-SPI is missing.

    When modifying the configure options, you should do that from a clean state.

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  • Unsolved Getting the current time for any data that is read from the USB port raspberry pi

    Unsolved Getting the current time for any data that is read from the USB port raspberry pi

    You are trying to implement a system that is supposed to query the system clock 300 times per second while also reading a serial port and writing to a file, all of this is likely not going to work...

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  • Unsolved QDialog, Qt::ApplicationModal, open() vs exec(),

    Unsolved QDialog, Qt::ApplicationModal, open() vs exec(),

    Hi, That's because open is not blocking, so you are printing the "current state", you should connect the finished signal and only print there the modality. You'll see it matches what's advertised.

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  • Unsolved Multi Language Application

    Unsolved Multi Language Application

    Hi, The technique to use is described in the dynamic translation part of Qt's translation documentation.

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  • Unsolved QSqlForm Class

    Unsolved QSqlForm Class

    Hi, Because it was already moved in the qt3support module in Qt 4 and thus removed in Qt 5. See the Qt 4 porting guide.

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  • Unsolved QMap swap key and value

    Unsolved QMap swap key and value

    Hi, QMap modulePri; modulePri["one"] = 1; modulePri["two"] = 2; QMap moduleOrder; // Qt 5.7 for (auto it = modulePri.keyBegin() ; it != modulePri.keyEnd() ; ++it) { ...

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  • Unsolved how to show LED in GUI and use push button to control it

    Unsolved how to show LED in GUI and use push button to control it

    @rezaMSLM you put a widget on the form and right click it select Promote then give it the class name and include Then click Add and then promote. When run, its now a Led. you must have...

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  • Unsolved Qt on Raspberry pi3

    Unsolved Qt on Raspberry pi3

    @sierdzio I'm running it without X server, as I should Now, I'm curious about this, what libs are you using for glesv2 and egl?, I'm using the ones in /opt/vc/lib folder, and I also cross compiled...

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  • Unsolved Add button is greyed out in Devices Is this expected in communit edition of Qt Creator ver 4.7?

    Unsolved Add button is greyed out in Devices Is this expected in communit edition of Qt Creator ver 4.7?

    Hi, You RasPi kit is listed as Desktop in Device Type and the Device field contains Local PC. The Qt version used is also your distribution provided Qt. So basically nothing that might give Qt...

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  • Unsolved QChart not rendering

    Unsolved QChart not rendering

    Hi, Depending on how much data your application has to process, trying to refresh 60 times per second won't yield the effect you expect. Did you benchmark that part ?

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  • Unsolved Installation Problem

    Unsolved Installation Problem

    Hi, As you wrote, you installed only Qt Creator. If you want everything, get the pre-built Qt packages using the online installer.

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  • Unsolved get current time for each data that read from USB port raspberry pi

    Unsolved get current time for each data that read from USB port raspberry pi

    I want to read data from usb serial and get date and time for each new value and save them in execl file ,I get date & time from raspberry pi #include "MyThread.h" #include #include #include...

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  • Unsolved Using the VC4 drivers with Qt and Raspberry pi 3

    Unsolved Using the VC4 drivers with Qt and Raspberry pi 3

    @Cleiton-Bueno Check it Building on: linux-g++ (x86_64, CPU features: mmx sse sse2) Building for: devices/linux-rasp-pi3-vc4-g++ (arm, CPU features: ) Configuration: cross_compile use_gold_linker...

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  • Unsolved Which one is better for real time data plotting QtChart or QCustomplot?

    Unsolved Which one is better for real time data plotting QtChart or QCustomplot?

    I'm want to show real time data, which has 250 points per second and it should update at 60 Hz. How Can I do that? which one is better, QtChart or QCustomplot?

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