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Forum: Qt Programming

General more advanced Qt programming issues.

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  1. Qwt

    Questions related to Qwt - Qt widgets for technical applications.

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  1. Strange behavior with QTableWidget

    Started by franco.amato, 10th January 2022 21:21
    • Replies: 5
    • Views: 4,768
    d_stranz
    12th January 2022, 16:04 Go to last post

  2. QWizardPage, page id and designer

    Started by zaphod.b, 10th January 2022 13:47
    • Replies: 0
    • Views: 8,573
    zaphod.b
    10th January 2022, 13:47 Go to last post

  3. How to update size of nested QWidget?

    Started by Maryu, 24th December 2021 17:40
    layout, qscrollarea, resizing to content
    • Replies: 3
    • Views: 10,422
    d_stranz
    25th December 2021, 16:39 Go to last post

  4. Qt5 and Qt6 font render mismatches

    Started by diverlin, 10th December 2021 22:30
    font-rendering 2 Attachment(s)
    • Replies: 0
    • Views: 8,472
    diverlin
    10th December 2021, 22:30 Go to last post

  5. Strange compilation errors when using "invokeMethod"

    Started by jcbaraza, 7th December 2021 20:46
    compilation error, invokemethod, multithreading, qthreadpool
    • Replies: 4
    • Views: 3,717
    jcbaraza
    8th December 2021, 17:23 Go to last post

  6. Create a dialog on the fly dynamically based on an input xml file

    Started by franco.amato, 25th November 2021 01:12
    • Replies: 7
    • Views: 4,949
    franco.amato
    29th November 2021, 12:51 Go to last post

  7. Programatically add USerRole data to specific cell of QAbstractTableMode

    Started by franco.amato, 26th November 2021 04:47
    • Replies: 5
    • Views: 3,731
    d_stranz
    27th November 2021, 00:58 Go to last post

  8. One GL Context Multiple Widgets - Qt 6

    Started by qtoptus, 24th November 2021 16:59
    • Replies: 6
    • Views: 3,863
    d_stranz
    26th November 2021, 16:36 Go to last post

  9. Questions on SQL using QSqlDatabase

    Started by sophvic, 23rd November 2021 20:48
    • Replies: 0
    • Views: 3,727
    sophvic
    23rd November 2021, 20:48 Go to last post

  10. Problems in understanding how to use a QComboBox in my QTableView derived class

    Started by franco.amato, 19th November 2021 00:58
    • Replies: 5
    • Views: 4,575
    d_stranz
    23rd November 2021, 17:02 Go to last post

  11. QCamera viewfindersettings

    Started by on4qz, 23rd November 2021 15:04
    1 Attachment(s)
    • Replies: 0
    • Views: 3,364
    on4qz
    23rd November 2021, 15:04 Go to last post

  12. creating custom signal

    Started by aj2903, 14th March 2009 06:51
    • Replies: 10
    • Views: 54,244
    swati777999
    18th November 2021, 09:33 Go to last post

  13. QFileDialog selecting file or directory

    Started by ^NyAw^, 19th June 2008 15:29
    • Replies: 5
    • Views: 16,513
    d_stranz
    13th November 2021, 23:03 Go to last post

  14. Moving selected items from QTableWidget1 to QTableWidget2

    Started by franco.amato, 13th November 2021 12:39
    • Replies: 1
    • Views: 2,014
    d_stranz
    13th November 2021, 15:55 Go to last post

  15. QGraphicsItem - ignore parent scaling - allow local scaling

    Started by WolfByte, 9th November 2021 19:47
    • Replies: 7
    • Views: 4,351
    WolfByte
    12th November 2021, 18:05 Go to last post

  16. How to remove whitespace inside XML tag?

    Started by sophvic, 7th November 2021 03:10
    • Replies: 3
    • Views: 3,337
    d_stranz
    11th November 2021, 15:20 Go to last post

  17. Question Does QDataWidgetMapper use flags?

    Started by Netwiz, 22nd September 2009 00:29
    flags, qdatawidgetmapper, widgets
    • Replies: 1
    • Views: 5,557
    NameRakes
    29th October 2021, 00:56 Go to last post

  18. Problems with QGridLayout

    Started by franco.amato, 26th October 2021 08:20
    layout management, qgridlayout 2 Attachment(s)
    • Replies: 2
    • Views: 3,576
    d_stranz
    26th October 2021, 18:25 Go to last post

  19. Question QFilewatcher monitoring Raspberry Pi GPIO started as nonroot

    Started by ernie_R, 24th October 2021 19:13
    gpio monito, nonroot, qfilewatcher
    • Replies: 0
    • Views: 3,045
    ernie_R
    24th October 2021, 19:13 Go to last post

  20. trying to get a QIcon into the center of a QTableWidgetItem

    Started by StephenHazel, 21st October 2021 01:20
    qicon, qtablewidget, qtablewidgetitem
    • Replies: 0
    • Views: 3,250
    StephenHazel
    21st October 2021, 01:20 Go to last post

  21. Question QApplication hanging on poll() (sometimes)

    Started by DesertBroncoFan, 11th August 2021 23:54
    qapplication
    • Replies: 3
    • Views: 4,790
    DesertBroncoFan
    20th October 2021, 22:10 Go to last post

  22. MySQL driver issues on M1 Mac

    Started by Gretsch, 12th October 2021 00:30
    arm64, macos 11, mysql
    • Replies: 0
    • Views: 5,069
    Gretsch
    12th October 2021, 00:30 Go to last post

  23. Close and reopen connection to database

    Started by White_Owl, 8th October 2021 23:50
    • Replies: 3
    • Views: 3,681
    ChristianEhrlicher
    10th October 2021, 14:29 Go to last post

  24. I have a problem with opening the double-clicked file in my Qt app

    Started by mohamed469, 27th September 2021 10:45
    argument, arguments, qcoreapplication, unicode
    • Replies: 1
    • Views: 2,768
    mohamed469
    7th October 2021, 10:19 Go to last post

  25. QNetworkAccessManager doesn't call QNetworkReply

    Started by black_gay, 5th October 2021 00:24
    qnetworkaccessmamanager, qnetworkreply, signal slot
    • Replies: 0
    • Views: 3,224
    black_gay
    5th October 2021, 00:24 Go to last post

  26. QT6.2 qt.conf

    Started by neosettler, 3rd October 2021 02:36
    • Replies: 0
    • Views: 5,665
    neosettler
    3rd October 2021, 02:36 Go to last post

  27. No paint event occurred on MainWindow

    Started by andreaQt, 1st October 2021 13:07
    1 Attachment(s)
    • Replies: 0
    • Views: 2,330
    andreaQt
    1st October 2021, 13:07 Go to last post

  28. Question What is replacement for QAbstractFileEngine?

    Started by White_Owl, 29th September 2021 16:02
    • Replies: 5
    • Views: 2,811
    d_stranz
    30th September 2021, 15:41 Go to last post

  29. How to embed qt plugins into the executable file?

    Started by franco.amato, 29th September 2021 11:07
    qt plugins
    • Replies: 3
    • Views: 2,532
    d_stranz
    29th September 2021, 17:32 Go to last post

  30. Question QComboBox with custom model clears text in its lineEdit

    Started by redsoft, 20th September 2021 15:06
    combobox, model
    • Replies: 10
    • Views: 7,604
    redsoft
    28th September 2021, 11:43 Go to last post
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