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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.
    79k Topics
    454k Posts
    jsulmJ

    @SlayH said in macOS->Microphone Permission (request permission Message won't popup):

    nothing works

    This is not a proper problem description.
    What exactly does not work?

  • The forum for developing everything embedded: Linux, WinCE, Symbian, MeeGo... you name it.
    13k Topics
    62k Posts
    Paul ColbyP

    Hi @TyChapin,

    Upon connection, the MTU is set to the default value of 23.

    That's only a "we don't know yet" default, which is, frankly, pretty meaningless. As per the docs:

    Before the connection setup and MTU negotiation, the default value of 23 will be returned.

    @TyChapin said in BLE MTU Exchange:

    Then once I connect to a service, the MTU is 256 which is what the BLE device wants it to be at.

    Yep, that (256) would be the real, negotiated, MTU.

    @TyChapin said in BLE MTU Exchange:

    When I go to read the characteristic value that has 64 bytes, only 24 bytes come over.
    Does anyone have any advice on how to exchange the MTU size properly?

    I suspect the problem is not MTU related. In most cases, the MTU should not affect the characteristic data size (just performance), because the BLE stack will use as many MTU's as needed to transfer the characteristic's data.

    How are you checking the characteristic value's length? ie how do you know that the "value has 64 bytes", and "only 24 bytes come over"?

    (Also, if its a publicly documented characteristic, and you're able to share the UUID, that might help, but no worries if not).

    Cheers.

  • Looking for The Bling Thing(tm)? Post here!
    19k Topics
    76k Posts
    Serhan KarsS

    I managed to list two nodes in my TreeView using ListModel and ListElement. But I could not try to display a hierarchy of items in my tree view. Is there a way of doing this? Maybe just passing a JS object. An example would be great!

    ListModel { ListElement { name: "Root" rows: [ ListElement { name: "Child 1" }, ListElement { name: "Child 2" } ] } ListElement { name: "Root 2" } }
  • Have a question about Qt Creator, our cross-platform IDE, or any of the other tools? Ask here!
    7k Topics
    33k Posts
    hskoglundH

    Hi, if you're using the online installer (Maintain Qt) you can select it here:
    Screenshot 2024-05-02 at 16.59.44.png

  • 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.
    9k Topics
    50k Posts
    M

    Hello,

    I would like to know how can I install silently thé enterprise version of qt 4.8.7 AND 5.15
    I need to automate both installation but I dont find any documentation about the switch parameters I need to use. I just know /S for silent install but I need to know the switch for user name and key name. These are the values I need to enter during GUI installation

    Thanks for your help

  • What can we say - we like games. And you can use Qt to write some. Questions? Ask here.
    829 Topics
    4k Posts
    BondrusiekB

    Simple Ray Casting v2
    alt text
    Source code: https://github.com/Przemekkkth/simple-ray-casting-2-qt-cpp
    Gameplay: https://youtu.be/p9Ebbg9-ays

  • Questions about Qt WebKit and related topics? Post here!
    2k Topics
    6k Posts
    JonBJ

    @redstoneleo
    Just be aware/for anyone reading this: Your solution is doubtless useful/correct, but it is for QWebEngine. This thread is from a decade ago when that did not exist and is for QWebView, a different Qt web viewer engine which no longer exists/is supported.

  • Discussions and questions on QtWebEngine
    1k Topics
    4k Posts
    X

    [1:60:0274/106115.943982:ERROR:cert_verify_proc_nss.cc(918)] CERT_PKIXVerifyCert for 10.23.108.45 failed err=-4532
    js: Uncaught ReferenceError: jstProcess is not defined

    This error I got earlier

  • You're using Qt with other languages than C++, eh? Post here!
    831 Topics
    3k Posts
    PedromixP

    QtJambi_release.png
    New version QtJambi 6.7.0 is available now 🎉. For all who want to create smart UIs🚀 in Java or Kotlin based upon the latest Qt release.
    https://github.com/OmixVisualization/qtjambi/releases/tag/v6.7.0

  • Combining Qt with 3rd party libraries or components? Ask here!
    1k Topics
    6k Posts
    CodeFarmerC

    @trin94 Thanks for getting back to me and for all your help

  • For discussion and questions about Qt for Python (PySide 2)

    3k Topics
    13k Posts
    SGaistS

    @sontrantls that's the trick: does the utility do something at a lower level to communicate with this printer ?

  • Specific issues when using Qt for WebAssembly

    401 Topics
    2k Posts
    W

    I was able to download the file in the following way, the backend that I have made in nestjs
    generates the pdf file, I consume it from the front with qnetworkaccesmanager
    and finally QFileDialog::saveFileContent(reply->readAll(), "peport.pdf" )Captura de pantalla 2024-04-30 a la(s) 9.01.17 p. m..png

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

    120 Topics
    395 Posts
    V

    @jsulm yes, i tried but they said like i need active QT license to get support directly from QT.

  • The forum for discussing the Qt Digital Advertising Platform

    15 Topics
    36 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

    7 Topics
    9 Posts
    TinoT

    Qt Insight 1.8 has been released. Based on the user feedback, we have improved the meters and filters to be used in the reports. We have replaced the KPI meter with the line meter to provide more insights into the KPI views. New filters have been added to study the data at an hour granularity or to see a minimum, maximum, sum, or average of a value.

    Read more details in the 1.8 release blog post.

  • Forum general guide

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    13 Votes
    22 Posts
    15k Views
    kshegunovK

    @Nils-A said in Forum general guide:

    @AnneRanch seriously? That's five years ago, four years before you joined.

    Nor is it relevant to your question.

    @AnneRanch said in Forum general guide:

    This in not the place to make sermons or trying to push your social opinions.
    Here is a "how to " borrowed form another site

    This isn't "another site", this site has a code of conduct, which's been established, reviewed and approved by a number of people and it certainly isn't under debate in this thread. If you have a specific complaint about a specific person/post bring it to the attention of the moderators directly by flagging it/them.