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General and Desktop

This is where all the desktop OS and general Qt questions belong.
83.4k Topics 456.4k Posts
  • How to Handle Random Crashes In Application

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    Christian EhrlicherC
    @Ketan__Patel__0011 said in How to Handle Random Crashes In Application: Yes I am using or sharing my UI components in my thread functions You must not modify the GUI outside the main thread!
  • How to add swipe gesture on QScrollArea widget ?

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    JoeCFDJ
    @Qt-embedded-developer I think you are doing swipe of pictures. Check this example out: https://code.qt.io/cgit/qt/qtbase.git/tree/examples/widgets/gestures/imagegestures?h=5.15
  • How do you search the examples in Qt Creator?

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    StokestackS
    @aha_1980 I see you found my report. Thanks for linking to it.
  • Avoid dangling QTimer object

    Unsolved qtimer stop
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    JoeCFDJ
    Both QTimer timer and QTimer * timer{} are ok. The only difference is QTimer header file is included or not in the class header file. This is not an issue. If C++ is used, new and delete is not a problem. You do it all day long.
  • tableContextMenu sender not work

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    JoeCFDJ
    if(widget == it) /* here you are comparing two addresses, print out them. Is the sender channelsTable? { editChannel->setText("Descombine channels"); } else { editChannel->setText("Combine channels"); }
  • Cant change row color background programatically

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    L
    @JonB Ok, I will do that, must be a problem with my variables.
  • This topic is deleted!

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  • Desktop application of my Qt Project

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    JKSHJ
    @suslucoder said in Desktop application of my Qt Project: is there any more clear example for deploying a project on linux? @jsulm posted a link to Flatpak above; have a look. By the way, @eyllanesc made a very good point: What is the processor architecture of your tablet? If it has an ARM CPU, then it can't run the executable files that you built for your PC. You will need to cross-compile it for ARM.
  • Qml usb camera shows picture with colored stripes

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    Pl45m4P
    This looks like a kind of test image. Probably created by your Raspbian or QML as default image, when there is no camera picture or data available (haven't used both). https://en.wikipedia.org/wiki/Test_card @Melle_87 said in Qml usb camera shows picture with colored stripes: Before the raspbian buster update the camera picture was shown correctly. How should it look like?
  • Visual studio can not build Qt projects since today

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    V
    @mrjj :( not working... KB4598299 and KB4598301 are not installed. Funny... 2nd problem is when you restart VS, it does not remember which source code windows are opened ?
  • QSerialPort signals and slots broadcasting

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    qtprogrammer123Q
    ok ;] I think its all
  • My Application doesnt run another pc

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    sierdzioS
    @suslucoder said in My Application doesnt run another pc: @JonB said in My Application doesnt run another pc: And just to verify, did the ldd output have any "not found"s written against any of them? Nonetheless you need to follow the instructions others are pointing you to. No there isnt "not found" You need to run it on target PC, not on yours.
  • QCheckBox QSS problem

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    Pl45m4P
    @Alexey-Serebryakov said in QCheckBox QSS problem: QCheckBox::indicator { border: 1px solid white; background-color: none; color: white; } When you set this, you need to specify the appearance further, otherwise the check mark will also have color none. Try to change settings of QCheckBox::indicator::checked. https://doc.qt.io/qt-5/stylesheet-examples.html#customizing-qcheckbox
  • This topic is deleted!

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  • 0 Votes
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    J
    @mrjj @JonB I realized this function through the following code, thank you QProcessEnvironment env = QProcessEnvironment::systemEnvironment(); env.remove("DISPLAY"); proc->setProcessEnvironment(env);
  • QChart QChartView reflesh when the QComboBox Changes

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  • Windows Fade Out

    Unsolved animation qt5.9
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    mrjjM
    Hi You can try setWindowOpacity(); https://doc.qt.io/qt-5/qwidget.html#windowOpacity-prop with a PropertyAnimation https://doc.qt.io/qt-5/qpropertyanimation.html
  • How can I read a specific point using QSerialPort?

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    D
    Thanks. I'll check that :)
  • HOWTO debug "Remote process crashed" on app termination from QtCreator

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  • This topic is deleted!

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