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Combining Qt with 3rd party libraries or components? Ask here!
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  • A

    Quazip and Qt6 mingw

    Solved
    18
    0 Votes
    18 Posts
    1k Views
    A

    Ok finally builded, thanks for help :)

  • H

    disposition qxmpp

    Unsolved
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    0 Votes
    16 Posts
    1k Views
    jsulmJ

    @hzha said in disposition qxmpp:

    didn't work

    In what way it didn't work?
    Saying "didn't work" does not help much.

  • M

    Compile meshlab in linux is fine but in windows there are lots of linker problem

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    3 Posts
    286 Views
    Christian EhrlicherC

    Please show your CMakeLists.txt. You are not linking against the Qt library.

  • P

    Qwt trying to draw symbol even it is null

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    7 Posts
    543 Views
    P

    @Christian-Ehrlicher

    If you look at qwt oscilloscope example the curve data is updated in another thread than GUI.
    I do the same. I update only the curve data and guard it with mutexes. In replot the data is locked. But I guess this must be the reason so I'll try to come up with a small compilable example to show the error.

  • M

    Error connecting camera via OpenCV

    Unsolved
    6
    0 Votes
    6 Posts
    915 Views
    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.

  • M

    Segmentation Error On QSqlDriver::AddDatabase

    Solved
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    0 Votes
    5 Posts
    478 Views
    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 😅

  • H

    QWT Plot Curve Dashline not showing

    Unsolved
    2
    0 Votes
    2 Posts
    329 Views
    SGaistS

    Hi,

    Please provide a minimal compilable example that shows the situation.

  • A

    Are there any BACNet libraries for Qt out there?

    Unsolved
    2
    0 Votes
    2 Posts
    409 Views
    SGaistS

    Hi,

    Did you check the BACnet developer aids ? There's a list there of implementation for different languages including C.

  • B

    Software fails with QT

    Unsolved
    2
    0 Votes
    2 Posts
    313 Views
    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 ?

  • A

    Error: Cannot find -lSDL2

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    0 Votes
    16 Posts
    1k Views
    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!

  • J

    Integrating UE5/CryEngine into Qt6 desktop application

    Unsolved
    3
    0 Votes
    3 Posts
    1k Views
    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

  • H

    This topic is deleted!

    Unsolved
    1
    0 Votes
    1 Posts
    35 Views
    No one has replied
  • H

    QwtPlotPicker show only y values or x values

    Solved
    2
    0 Votes
    2 Posts
    277 Views
    H

    @horizonQt
    i fixed it. look at qwt-6.1.6/playground/curvetracker . I hope it helps

  • H

    QWT Widgets not showing Qt Designer

    Solved
    13
    0 Votes
    13 Posts
    1k Views
    H

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

  • H

    QWTPlotZoomer zoom

    Solved
    3
    0 Votes
    3 Posts
    302 Views
    H

    @SGaist ı solved thanks

  • C

    qwt: howto use QVariant(QwtPlotItem*) for QwtPlotCurve->setVisible?

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    0 Votes
    6 Posts
    672 Views
    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.

  • C

    QOPCUA Open62541 security

    Unsolved
    2
    0 Votes
    2 Posts
    280 Views
    jsulmJ

    @Chs_QtLearner Please check config.log file to see why Open62541 security was disable (most probably some lib is missing).

  • C

    Issues during Compile QOPCUA (QT6.6,WINDOWS10)

    Solved
    3
    0 Votes
    3 Posts
    290 Views
    C

    @kkoehne ， thanks for your answer , I will do it

  • YichuanY

    Build OPCUA secure connection function with QtOpcUa and 3rd party Open62541 backend

    Unsolved
    2
    1 Votes
    2 Posts
    771 Views
    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

  • H

    QWTPlotZoomer zoom in-out signal

    Solved
    6
    0 Votes
    6 Posts
    454 Views
    H

    @horizonQt I solve it. setAxisAutoScale worked for me