Skip to content

Qt Development

Everything development. From desktop and mobile to cloud. Games, tools, 3rd party libraries. Everything.
144.0k Topics 721.6k Posts

Subcategories


  • This is where all the desktop OS and general Qt questions belong.
    84k 459k
    84k Topics
    459k Posts
    jeremy_kJ
    Adding view.setCurrentIndex(childItem.index()) to the example posted above still doesn't exhibit the described behavior. The item and any children delegate instances are removed from the view without collapsing, deselecting, clearing the current index, or other mitigations. Does the example work as expected for you?
  • Looking for The Bling Thing(tm)? Post here!
    20k 78k
    20k Topics
    78k Posts
    JKSHJ
    @FishBoneEK said in Need guide on modifying Qt modules: @SGaist I'm considering adding gaps in LineSeries of QtGraphs (with qQNaN() perhaps), instead of using multiple LineSeries. OK, so this is a continuation of https://forum.qt.io/post/836004 As mentioned there, this feature is coming to Qt 6.11 (currently downloadable as a beta) -- please give that a try before editing Qt.
  • The forum for developing everything embedded: Linux, WinCE, Symbian, MeeGo... you name it.
    14k 63k
    14k Topics
    63k Posts
    J.HilkJ
    Argument injection is no longer supported and my be the problem here use a lambda : this code works fine in my apps What version of Qt and android are you targeting/using? onClosing:(close)=> { //Management for Android Back-Button if(Qt.platform.os === "android"){ close.accepted = false } else { close.accepted = true } }
  • This is a discussion space for

    • for audio / video playback and recording
    • media formats and codecs
    • camera and screen sharing functionality
    51 222
    51 Topics
    222 Posts
    V
    I have been having this same issue with my Bluetooth headset not being detected
  • Have a question about Qt Creator, our cross-platform IDE, or any of the other tools? Ask here!
    8k 36k
    8k Topics
    36k Posts
    M
    Hello, sometimes i need to make smaller console programs. They are simple enough that i don't need Qt for them, but i still want to use Qt Creator for development. Development and debugging is fine, but i can't run the built exe file outside of creator. (build in release mode, of course) Double clicking on the exe i'm presented with an "impossible to find entry point" dialog. The project is being getting compiled with the Qt 6.10 MinGW Kit Initially i thought the problem was me using MinGW instead of MSVC. Same issue with the LLVM and MSVC kits. Instead, if I build the project with plain MinGW (copy CMakeList.txt and source files in another folder, use VSCodium's CMake plugin), i get a working executable. I'd like to understand what i'm doing wrong: Is using a Qt kit to build a non-qt application the problem? Can/Should i add plain MinGW as a "kit"? Is there a way to do what i want with Qt Creator? Because while i can use VSCodium or another IDE for debugging, i really prefer Qt Creator's interface. Thanks
  • 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.
    10k 51k
    10k Topics
    51k Posts
    J.HilkJ
    Ok, fair enough the installer is slightly different I'll try it! ooh thats a section here! [image: 1326d4f1-56ff-45e2-9785-a9576e5094cf.png] and if you miss that in your initial selection/installation you don't get the option anymore? Interesting
  • What can we say - we like games. And you can use Qt to write some. Questions? Ask here.
    875 4k
    875 Topics
    4k Posts
    K
    btw, the System has Intel HD Graphics Drivers: igdumd64.dll and igd10umd64.dll
  • Discussions and questions on QtWebEngine
    1k 4k
    1k Topics
    4k Posts
    D
    I have the same problem in FC42. QtWebEngine seems to be a complete disaster. Tried to compile 6.8.2 for FC42 but it failed after many hours of compiling.
  • You're using Qt with other languages than C++, eh? Post here!
    869 3k
    869 Topics
    3k Posts
    PedromixP
    [image: bdbda216-f9b8-469f-b90d-0e6b273560de.png] New version QtJambi 6.10.2 is available now πŸŽ‰. For all who want to create smart UIsπŸš€ in Java or Kotlin based upon the latest Qt release. https://www.qtjambi.io/
  • For discussion and questions about Qt for Python (PySide & Shiboken)

    3k 15k
    3k Topics
    15k Posts
    C
    Hi Group, We have the following problem, we are develoments a desktop application, that open windows in modal form in series. LoginApp -> MainMenu -> MainTreeMenu -> KSecOption -> RoleMainWindow -> RoleDefinitionAdd The application works fine, when windows are open, but the problem is when you close the windows; when RoleDefinitionAdd is closed it return to its parent RoleMainWindow, and when RoleMainWindow is closed, it return to Taskbar (of windows11) instead of return to KSecOpion. However, if RoleDefinitionAdd is not opened, then the application works fine, I mean, when you open till RoleMainWindow, and the close it, it return to KSecOption, then return to MainTreeMenu this to MainTreeMenu this to MainMenu this return to LoginApp, and finally exit from the application. Her part of the source class LoginApp(QMainWindow, LoginUser_v): def init(self, ctx, parent = None): super().init(parent) .... def start_app(self): self.window = MainMenu(self.ctx,'ksec') self.window.showMaximized() self.window.show() class MainTreeMenu(QMainWindow, Menu_v): def init(self, ctx, appname,parent = None): super().init(parent) class KSecOption(QMainWindow, Menu_v): def init(self, ctx, pgm_option,parent = None): super().init(parent) self.ctx = ctx print('opcion menu',pgm_option,parent) window = eval(pgm_option) #Open RoleMainWindow window.setWindowModality(Qt.WindowModal) window.show() class RoleMainWindow(kSecurityMain_v): def init(self, ctx, parent = None,mdi_area=None): super().init(parent) ... def add_role(self): window = RoleDefinitionAdd(self.ctx, self, self.find_roles_table) window.show() Can someone help me? Any reading material or examples? please, this driving me crazy
  • Specific issues when using Qt for WebAssembly

    464 2k
    464 Topics
    2k Posts
    F
    The aboutToBlock signal is not launch in wasm because the thread is always running, but the line : QCoreApplication::sendPostedEvents(nullptr, QEvent::DeferredDelete); Indeed call the delete from the deleteLater() Thank you for the help
  • Discussions and questions about Qt Quick Ultralite and using Qt on microcontrollers in general

    155 474
    155 Topics
    474 Posts
    T
    Does Qt for mcu's support STM32L4R7VITx? when looking at the components to install i cannot see an option for STM32L4 but it appears on the table on this reference page https://doc.qt.io/archives/QtForMCUs-2.5/qtul-supported-platforms.html
  • Combining Qt with 3rd party libraries or components? Ask here!
    1k 6k
    1k Topics
    6k Posts
    B
    What is the recommended way to create custom scale labels for QKnob? What I am trying to achieve is something like this: 1 0.5 0.2 0.1 50 20 10 5 2 1 0.5 etc. I gather I need to overload QwtRoundScaleDraw and QwtRoundScaleDraw::label() but I am sure where to define the custom scale.
  • The forum for discussing the Qt Digital Advertising Platform

    16 39
    16 Topics
    39 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

    11 20
    11 Topics
    20 Posts
    jsulmJ
    @Alejandro_qt_ Here is an example how to build qtbase module: https://stackoverflow.com/questions/50022325/building-qt-module-from-source