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]] edit:Editing Failed message

    [[qanda:topic_unsolved]] edit:Editing Failed message

    Re: edit: editing failed I have a similar issue when I use a double click event/slot to generate the index. Otherwise my code is the same. Where can I go to find out what is generating this error?

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  • [[qanda:topic_unsolved]] qt toll msvc2019 v2.6.0 not loaded in Microsoft Visual Studio 2019 v16.5.4

    [[qanda:topic_unsolved]] qt toll msvc2019 v2.6.0 not loaded in Microsoft Visual Studio 2019 v16.5.4

    qt-vsaddin-msvc2019-2.6.0-rev.07 not loaded in Microsoft Visual Studio Community 2019 v 16.5.4. The plug-in is not loaded even if download from the marketplace or id download directly from the web.

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  • [[qanda:topic_unsolved]] Compile error when building project (process: "/usr/bin/make" -j8)

    [[qanda:topic_unsolved]] Compile error when building project (process: "/usr/bin/make" -j8)

    @SGaist I commented out the line you mentioned, and now I get a bunch more errors relating to that same library. Seems to be originating from line above the one I removed: /usr/bin/ld: skipping...

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  • [[qanda:topic_unsolved]] Cannot create children for a parent that is in a different thread.

    [[qanda:topic_unsolved]] Cannot create children for a parent that is in a different thread.

    Hi, There's your issue. I am guessing your are moving an instance of SpotifyWebAPI to a different thread. However, your QNAM instance is not moved as it's not parented to its containing class....

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  • [[qanda:topic_unsolved]] QFormBuilder was unable to create a custom widget of the class 'QVideoWidget'

    [[qanda:topic_unsolved]] QFormBuilder was unable to create a custom widget of the class 'QVideoWidget'

    You should provide a minimal project on the bug report that reproduces that behaviour. And explain the steps to reproduce it.

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  • [[qanda:topic_unsolved]] Error on Qt 6 Building from source for Windows Based

    [[qanda:topic_unsolved]] Error on Qt 6 Building from source for Windows Based

    @SGaist Okay. let me try. i am downloading cmake 3.19.3

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  • [[qanda:topic_unsolved]] Create Json with particular structure with C ++

    [[qanda:topic_unsolved]] Create Json with particular structure with C ++

    Hi, You might want to check the excellent nlohmann json project.

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  • [[qanda:topic_unsolved]] QDomNamedNodeMap, example of how to process attributes?

    [[qanda:topic_unsolved]] QDomNamedNodeMap, example of how to process attributes?

    @SGaist , thank you, I'll take a look.

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  • [[qanda:topic_solved]] qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.

    [[qanda:topic_solved]] qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.

    @Srinivas-Reddy Thanks.

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  • [[qanda:topic_solved]] Toggling pushbuttons with children?

    [[qanda:topic_solved]] Toggling pushbuttons with children?

    @Chris-Kawa This worked after I had bypassed the QPushButton::sizehint with QSize sizeHint() const override {return QWidget::sizeHint();}

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  • [[qanda:topic_unsolved]] Reading data from an excel file using qfiledislog

    [[qanda:topic_unsolved]] Reading data from an excel file using qfiledislog

    @emeka_o So exactly what @jsulm said then. QFileDialog allows the user to pick just the filename, and QFile accepts that filename to open the file. Two separate things.

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  • [[qanda:topic_unsolved]] Use QCamera and QCameraInfo to work with a frame grabber card and a camera link cam.

    [[qanda:topic_unsolved]] Use QCamera and QCameraInfo to work with a frame grabber card and a camera link cam.

    Hello @szumial I am new to Qt and working on a very similar application. I am using a frame grabber board from National Instruments connect to a camera via the camera link. I was wondering if...

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  • [[qanda:topic_unsolved]] Creating a chart with multiple datas

    [[qanda:topic_unsolved]] Creating a chart with multiple datas

    @jsulm Is there any way to do it without txt file and queue?

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  • [[qanda:topic_unsolved]] Static inline QReadWriteLock class member

    [[qanda:topic_unsolved]] Static inline QReadWriteLock class member

    // classname.h #pragma once #include #include class ClassName { public: /*inline*/ static QReadWriteLock locker; inline static QString string; }; //...

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  • [[qanda:topic_unsolved]] Projects ->"New Subproject "... -> Import Project ....

    [[qanda:topic_unsolved]] Projects ->"New Subproject "... -> Import Project ....

    I am trying to utilize QtCreator options to IMPORT existing project. Using this sequence : Projects ( select working "subproject " project ) ->"New Subproject "... -> Import Project -> Import...

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  • [[qanda:topic_solved]] Installing Qt 6.0 on Ubuntu 20.04.1 LTS (QtCreator crashed)

    [[qanda:topic_solved]] Installing Qt 6.0 on Ubuntu 20.04.1 LTS (QtCreator crashed)

    @jsulm Short story. I've installed Ubuntu 20.04 on a new hard drive using a usb key. I wanted to be sure not to mix Qt5 and Qt6 projects. After that i've installed Qt6 with the offical installer,...

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  • [[qanda:topic_unsolved]] Adding datas on a chart

    [[qanda:topic_unsolved]] Adding datas on a chart

    I want to do a chart with 4 different lines. All lines should display different datas. When i called addData(), it should add 4 float numbers as a data and after that shows it on a chart. It can...

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  • [[qanda:topic_unsolved]] Choppy QSoundEffect playback w/ ALSA

    [[qanda:topic_unsolved]] Choppy QSoundEffect playback w/ ALSA

    Hi, Do you have pulse audio running as well ?

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  • [[qanda:topic_unsolved]] Qt 5.15.2 BLE QLowEnergyService::DiscoveringServices, and QLowEnergyService::UnknownError

    [[qanda:topic_unsolved]] Qt 5.15.2 BLE QLowEnergyService::DiscoveringServices, and QLowEnergyService::UnknownError

    Hi folks. I am trying to create an application to read data from a BLE device. This is my first experience with Qt in general. Using the Qt examples, I created a code that successfully searches...

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  • [[qanda:topic_solved]] How to get the returned value?

    [[qanda:topic_solved]] How to get the returned value?

    @_jao_victor_ viewlogin = uic.loadUi('./views/ui/login/viewLogin.ui') mainview = uic.loadUi('./views/ui/main/mainview.ui') Since you are loading a .ui file at runtime you are following the...

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