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Combining Qt with 3rd party libraries or components? Ask here!
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  • #include <QtKOAuth> not being recognized

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    SGaistS

    Hi,

    Are you sure that

    @$$PWD/../kQOAuth-master/include@

    is pointing to the right path ?

    As a side note, on windows, even when working with dlls, you link to a lib file, this one contains just the information needed about the library to link against.

  • [QWT] Plotting curves with gaps with QWT 6.1.0

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    SGaistS

    This might be a good trick to add in their documentation

  • 0 Votes
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    A

    Re-installation of Qt 5.1 did not change anything. I am just going to work on the Linux version and hope someone will come up with a workable solution.

  • 0 Votes
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    SGaistS

    Hi and welcome to devnet,

    Did you try to re-run qmake after you added the SDL lines to your pro file ?

  • [Solved]QML Video Accelaration

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    P

    [quote author="hpollak" date="1371449350"]I installed kubunt instead of OpenSuse now it works, but i think it is no matter of the distribution. I think the problem was that GStreamer VAAPI plugin ob opensuse was only available for GSTreamer 0.10 and not for 1.0 but my QML-Program was using GStreamer 1.0.[/quote]

    Nice to know it's working for you.
    Could u please tell us what ubuntu distro you are using and what package u install to make VAAPI workign with qml ?

  • 0 Votes
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    SGaistS

    "This":https://el-tramo.be/blog/mixing-cocoa-and-qt/ is an example about mixing Qt and Cocoa and it has the benefit of using Sparkle

    Hope it helps

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  • [Solved] WebSocket client

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    K

    Maybe this can be of interest to you. I have just open-sourced a WebSockets implementation (see "QWebSockets":https://github.com/KurtPattyn/QWebSockets).
    The only dependency is Qt.
    The implementation has been tested against the Autobahn test suite, and except for non-character Unicode code points, all tests pass. Performance is also great; e.g. it is faster than any available browser.

  • Qwt 6.1, Qt 5.1 on Mac OS X

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  • Qwt Execute application

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    SGaistS

    Hi,

    Are you sure Qwt is compiled with your Qt 5.0.1 ?

    Also you have a memory leak. You don't destroy plot when your application ends

  • Problem in Real Time data plotting

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    S

    sorry for the late reply,

    I will check it out and reply to you

  • 0 Votes
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    B

    Oh thanks! That was the problem.... I didn't realize these were required libraries. I added -lwinmm and -lws2_32 and it compiles!

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    B

    New UPDATE.

    This works:

    @void CamWindow::on_PointCloudChanged()
    {
    if (existPclPointCloud)
    {
    pclVisor.updatePointCloud(pclPointCloudPtr);
    pclVisor.updateCamera();
    ui->QvtkPointCloud->update();
    }
    else
    {
    //pclVisor = pcl::visualization::PCLVisualizer(pclVisorName,false);
    pcl::visualization::PCLVisualizer localPclVisor = pcl::visualization::PCLVisualizer(pclVisorName,false);
    pclVisor = localPclVisor;

    pclVisor.addPointCloud<pcl::PointXYZ>(pclPointCloudPtr); pclVisor.setBackgroundColor(1,0,0); renderWindow = pclVisor.getRenderWindow(); ui->QvtkPointCloud->SetRenderWindow(renderWindow); ui->QvtkPointCloud->show(); } ui->QvtkPointCloud->update(); existPclPointCloud = true;

    }@

    But if I use
    @pclVisor = pcl::visualization::PCLVisualizer(pclVisorName,false);@
    instead of
    @pcl::visualization::PCLVisualizer localPclVisor = pcl::visualization::PCLVisualizer(pclVisorName,false);
    pclVisor = localPclVisor;@

    It shows nothing... why???

  • Embed TIDmaiVideoSink into Qt (QWS) Widget

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  • LIBGCC_S_SJLJ-1.DLL dwarf and sjlj

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    E

    Then I did not understand why qxt asks for the sjlj library.
    Both, Qt and qxt, are compiled with the same compiler from wingw48 32bit. :-(

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  • Libraries Conflict, SDL and Qt

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    F

    Your blog is very informative, thank you so much!

  • Select QwtPlotCurve from QwtPlot

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    C

    Thank you for your answer, I used a mathematical equation that finds if the mouse point is on the line between the curves

  • 0 Votes
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    W

    It's probably a bit late to give an answer to this thread, but I can probably add some.

    I have used boost versions from 1.51 through 1.54 in the past together with Qt 4.8 through 5.1 on Windows 7.

    I use boost from within a top-level boost folder with subfolders for each version (e.g. C:\Program Files\Boost\boost_1_53_0 etc.) The libraries and includes are in /stage/lib and /boost respectively. I have an environment variable named boost to point to the desired boost version. Finally, to use boost from within Qt, I add the following two lines to the project file:
    @
    INCLUDEPATH += $$(boost)
    LIBS += -L"$$(boost)/stage/lib/"
    @

    This works for both, g++ and MSVC. However, for g++ I need to add any libraries with an additional:
    @
    win32-g++ {
    BOOST_TARGET = mgw48-mt-s-1_54
    LIBS += -lboost_filesystem-$${BOOST_TARGET}
    -lboost_chrono-$${BOOST_TARGET}
    -lboost_system-$${BOOST_TARGET}
    }
    @

    I have run into similar problems with (boost::) filesystem, exception and posix_time. (I haven't used regex that much). I could address the issue by excluding the boost headers from MOC:
    @
    #ifndef Q_MOC_RUN
    #include <boost/exception/all.hpp>
    #include <boost/filesystem.hpp>
    #endif
    @

    It is not the most ideal solution but it is absoultely portable.
    This solution is also mentioned "here:":https://bugreports.qt-project.org/browse/QTBUG-22829?focusedCommentId=176766&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-176766

    I have to add that the problem was most apparent in Qt 4.8. With Qt 5.0 I was able to remove a number of boost headers from the "MOC_RUN cage". I have not revisited all my code with Qt 5.1, so there might be even less.

    Willi

  • Qwt MultiBarChart Sample Titles

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