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.

  • [[qanda:topic_unsolved]] Using null in QML

    [[qanda:topic_unsolved]] Using null in QML

    @fcarney Is it even necessary in the QML world? Can I just leave it uninitialized like so: property var X; and tbh, I am initializing it as null but I am never running null checks when I use it...

    Read More
  • [[qanda:topic_unsolved]] How to update QML Items from non-main thread in C++ correct way?

    [[qanda:topic_unsolved]] How to update QML Items from non-main thread in C++ correct way?

    I'd be careful just because of my own assumptions / experience, it sounds like you're setting up a landmine for later, I don't know because I just skimmed your issues, I can't tell enough for a...

    Read More
  • [[qanda:topic_unsolved]] How to prevent scaling of Qt app on different screen resolutions in windows as well as other machines??

    [[qanda:topic_unsolved]] How to prevent scaling of Qt app on different screen resolutions in windows as well as other machines??

    Hi, and welcome! @Vikram_Newbie said in How to prevent scaling of Qt app on different screen resolutions in windows as well as other machines??: I want it to be of fixed height and fixed width on...

    Read More
  • [[qanda:topic_unsolved]] Detecting widget resize done by mouse

    [[qanda:topic_unsolved]] Detecting widget resize done by mouse

    @Black-Imp Which is what I suspected when I suggested earlier. So if you're looking for a practical, not theoretical, solution, and you can't find anything else, set off a timer when you open the...

    Read More
  • Check out our on-demand webinars. Maybe you'll find one of interest?

    View All
  • [[qanda:topic_unsolved]] Scope and destruction of parent-child model QObjects

    [[qanda:topic_unsolved]] Scope and destruction of parent-child model QObjects

    @VRonin said in Scope and destruction of parent-child model QObjects: What causes the deletion of a QT class (related to parent/child)? The parent keeps a list of its children. Passing a parent...

    Read More
  • [[qanda:topic_unsolved]] iso 646de

    [[qanda:topic_unsolved]] iso 646de

    Hi and welcome to devnet, QTextCodec comes to mind for that task.

    Read More
  • [[qanda:topic_unsolved]] Hide files included as .pri from project pane

    [[qanda:topic_unsolved]] Hide files included as .pri from project pane

    @aha_1980 Ahh okay. That's what I thought. Is there a better way I can organize my tree view so that when the project grows to add more libs I can reduce the amoint of QTreeViewItems in the...

    Read More
  • [[qanda:topic_unsolved]] QBluetooth in Windows Docker Container

    [[qanda:topic_unsolved]] QBluetooth in Windows Docker Container

    I am going to answer myself. I did a bit more research and I came upon this page: https://docs.microsoft.com/en-us/windows-hardware/drivers/bluetooth/general-bluetooth-support-in-windows, which...

    Read More
  • [[qanda:topic_solved]] [PyQt5] mouse position over label

    [[qanda:topic_solved]] [PyQt5] mouse position over label

    @Denni-0 said in [PyQt5] mouse position over label: are you going to include that UI you import # -*- coding: utf-8 -*- # Form implementation generated from reading ui file 'Opencv.ui' # #...

    Read More
  • ×

    Ask us how our services team can shorten your time-to-market.

    First Name
    Last Name
    Company Name
    Your role
    Phone Number
    Country
    State/Region
    Send me news about Qt products and services.
    Check out our privacy policy.
    Our services team will be in touch soon.
    Error - something went wrong!
  • [[qanda:topic_unsolved]] How can I associate the udp or tcp socket with the interface?

    [[qanda:topic_unsolved]] How can I associate the udp or tcp socket with the interface?

    @SGaist said in How can I associate the udp or tcp socket with the interface?: Hi, Do you mean bind the socket ? Isn't the first parameter what you are looking for ? QList list =...

    Read More
  • [[qanda:topic_unsolved]] analogclock EXAMPLE

    [[qanda:topic_unsolved]] analogclock EXAMPLE

    Hi and welcome to devnet, It's a file you use as like an include in your .pro file. It uses the same syntax as the .pro file.

    Read More
  • [[qanda:topic_unsolved]] cout in qtcreator

    [[qanda:topic_unsolved]] cout in qtcreator

    @s002wjh maybe silly question but did you #include ?

    Read More
  • [[qanda:topic_unsolved]] Delete a QString From QStringList

    [[qanda:topic_unsolved]] Delete a QString From QStringList

    @JonB but it doesn't make it readable Get used to it, that's the preferred C++ way nowadays ("functional programming"). Regards

    Read More
  • [[qanda:topic_unsolved]] needing updated values from executed query row

    [[qanda:topic_unsolved]] needing updated values from executed query row

    @user4592357 That was in my question #3 earlier :) OK, now I understand.

    Read More
  • [[qanda:topic_solved]] Is there any way to compile to 32bit other than MinGW?

    [[qanda:topic_solved]] Is there any way to compile to 32bit other than MinGW?

    @aha_1980 , Ok. ;-) Regards, Mucip:)

    Read More
  • ×

    Hit the ground running with the Qt Starter Pack. Ask us how.

    First Name
    Last Name
    Company Name
    Your role
    Country
    State/Region
    Phone Number
    Send me news about Qt products and services.
    Check out our privacy policy.
    We will contact you shortly.
    Error - something went wrong!
  • [[qanda:topic_unsolved]] How to set the size of image in QWidget?

    [[qanda:topic_unsolved]] How to set the size of image in QWidget?

    Hello, I have QWidget that promoted to QVTKOpenGLNativeWidget where I am loading images. But the image appears at the center of QWidget. I set size of QWidget with 512512. I am loading dicom...

    Read More
  • [[qanda:topic_unsolved]] CameraBin error: "Your GStreamer installation is missing a plug-in."

    [[qanda:topic_unsolved]] CameraBin error: "Your GStreamer installation is missing a plug-in."

    Hi, Can you access that camera directly with GStreamer ?

    Read More
  • [[qanda:topic_unsolved]] QBluetoothSocket never connects

    [[qanda:topic_unsolved]] QBluetoothSocket never connects

    All slots do a printf; no other slot was called, including error. I use printf because it is often easier to format data than using cout. I guess I show my age, as I learned C in the 80s before...

    Read More
  • [[qanda:topic_unsolved]] Layout -> Signal when resized

    [[qanda:topic_unsolved]] Layout -> Signal when resized

    @Flaming-Moe said in Layout -> Signal when resized: At least, if I coud get a notification about the main window beeing resized, I could resize the mainwidget of the scrollarea and it´s sibblings...

    Read More
  • ×

    Watch how to advance application performance with Qt

    First Name
    Last Name
    Company Name
    Your role
    Country
    State/Region
    Phone Number
    What type of product are you developing?
    Send me news about Qt products and services.
    Check out our privacy policy.
    Thanks!
    Error - something went wrong!
  • [[qanda:topic_solved]] #include <QuickQanava>:  file not found  😄

    [[qanda:topic_solved]] #include <QuickQanava>: file not found 😄

    Fix this by copy / pasting a sample project into QuickQanava root after forking QuickQanava on GitHub. Rename the .pro, .pro.user and the folder. In the .pro file, put in the new path to the...

    Read More
  • loading
    Loading More...