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3rd Party Software

Combining Qt with 3rd party libraries or components? Ask here!
1.1k Topics 5.6k Posts
  • Error connecting camera via OpenCV

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    SGaistS
    @mtalha2621 My bad, I misread the error messages. What I had in mind when answering is for you to use your custom pipeline with OpenCV.
  • Segmentation Error On QSqlDriver::AddDatabase

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    M
    @Christian-Ehrlicher Yeah, this seemed to be the problem... Took much longer to than I want to admit before I found it... I wanted to post my fix already, but newbies on the forum can only post every 10 minutes 😅
  • QWT Plot Curve Dashline not showing

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    SGaistS
    Hi, Please provide a minimal compilable example that shows the situation.
  • Are there any BACNet libraries for Qt out there?

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    SGaistS
    Hi, Did you check the BACnet developer aids ? There's a list there of implementation for different languages including C.
  • Software fails with QT

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    SGaistS
    Hi and welcome to devnet, Did you build that software yourself ? Where did you get the sources from ? Which version of Qt are you using ? How did you install it ?
  • Error: Cannot find -lSDL2

    Solved library sdl2 includepath
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    A
    @jsulm @Christian-Ehrlicher Well, my code doesn't work after but I'll figure it out later. I can say that the linking works properly now. Thanks for your help guys!
  • Integrating UE5/CryEngine into Qt6 desktop application

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    A
    According to Qt documentation you can integrate your qml in UE: https://doc-snapshots.qt.io/qt6-dev/qquickgraphicsconfiguration.html#configuration-for-external-rendering-engines-or-xr-apis
  • This topic is deleted!

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    No one has replied
  • QwtPlotPicker show only y values or x values

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    H
    @horizonQt i fixed it. look at qwt-6.1.6/playground/curvetracker . I hope it helps
  • QWT Widgets not showing Qt Designer

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    H
    @jsulm https://microseismic.cn/use-qwt-library-in-qt-to-display-seismic-waveforms.html ı follow this and ı solved thanks
  • QWTPlotZoomer zoom

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    H
    @SGaist ı solved thanks
  • qwt: howto use QVariant(QwtPlotItem*) for QwtPlotCurve->setVisible?

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    JonBJ
    @Cedric-air No, that shows it is not optional, it shows that you should not be trying to alter itemInfo in the signal/slot. But your commented out/erroneous code was trying to set that visible.
  • QOPCUA Open62541 security

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    jsulmJ
    @Chs_QtLearner Please check config.log file to see why Open62541 security was disable (most probably some lib is missing).
  • Issues during Compile QOPCUA (QT6.6,WINDOWS10)

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    C
    @kkoehne , thanks for your answer , I will do it
  • Build OPCUA secure connection function with QtOpcUa and 3rd party Open62541 backend

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    C
    I meet same question, but It seems QT5, QOpcUa with Open62541 version 0.3 , not support Open SSL communication. So , now I upgrade to use QT6 ,But I meet another problem "Build QOpcUa issues - https://www.qtcentre.org/threads/72050-QT6-6-QOPCUA-Open62541-Build-issue
  • QWTPlotZoomer zoom in-out signal

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    H
    @horizonQt I solve it. setAxisAutoScale worked for me
  • QwtPlotZoomer Problems

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    H
    @geus How will we integrate? can you give more info ?
  • Troubles converting qwt5 to qwt6

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    SGaistS
    Hi,' Which class would that be ?
  • VLC-Qt build error

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    jsulmJ
    @NewUser2023 Please post text not pictures. In your LIBS you use PWD - make sure the path is really valid and check the linker call to see what paths are passed to the linker.
  • Build QuaZip for Android Qt

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    G
    @jsulm I managed to zip/unzip with quazip for Android device. With guidance from @jsulm. Thank you. https://forum.qt.io/topic/151699/how-to-unzip-an-application-running-on-an-android-device-using-qt