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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. Question QApplication hanging on poll() (sometimes)

    Started by DesertBroncoFan, 11th August 2021 23:54
    qapplication
    • Replies: 3
    • Views: 2,673
    DesertBroncoFan
    20th October 2021, 22:10 Go to last post

  2. MySQL driver issues on M1 Mac

    Started by Gretsch, 12th October 2021 00:30
    arm64, macos 11, mysql
    • Replies: 0
    • Views: 3,230
    Gretsch
    12th October 2021, 00:30 Go to last post

  3. Close and reopen connection to database

    Started by White_Owl, 8th October 2021 23:50
    • Replies: 3
    • Views: 1,884
    ChristianEhrlicher
    10th October 2021, 14:29 Go to last post

  4. 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: 1,494
    mohamed469
    7th October 2021, 10:19 Go to last post

  5. QNetworkAccessManager doesn't call QNetworkReply

    Started by black_gay, 5th October 2021 00:24
    qnetworkaccessmamanager, qnetworkreply, signal slot
    • Replies: 0
    • Views: 1,917
    black_gay
    5th October 2021, 00:24 Go to last post

  6. QT6.2 qt.conf

    Started by neosettler, 3rd October 2021 02:36
    • Replies: 0
    • Views: 4,190
    neosettler
    3rd October 2021, 02:36 Go to last post

  7. No paint event occurred on MainWindow

    Started by andreaQt, 1st October 2021 13:07
    1 Attachment(s)
    • Replies: 0
    • Views: 1,517
    andreaQt
    1st October 2021, 13:07 Go to last post

  8. Question What is replacement for QAbstractFileEngine?

    Started by White_Owl, 29th September 2021 16:02
    • Replies: 5
    • Views: 1,470
    d_stranz
    30th September 2021, 15:41 Go to last post

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

    Started by franco.amato, 29th September 2021 11:07
    qt plugins
    • Replies: 3
    • Views: 1,243
    d_stranz
    29th September 2021, 17:32 Go to last post

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

    Started by redsoft, 20th September 2021 15:06
    combobox, model
    • Replies: 10
    • Views: 2,986
    redsoft
    28th September 2021, 11:43 Go to last post

  11. cmake specify arch

    Started by tuli, 24th September 2021 02:55
    cmake build prefix_path
    • Replies: 1
    • Views: 1,172
    d_stranz
    24th September 2021, 17:08 Go to last post

  12. QRubberBand in child widgets

    Started by davethomaspilot, 23rd September 2021 21:24
    • Replies: 0
    • Views: 1,024
    davethomaspilot
    23rd September 2021, 21:24 Go to last post

  13. QSemaphore - implementing overwrite policy

    Started by freesky, 23rd September 2021 18:45
    multithreading, qsemaphore
    • Replies: 0
    • Views: 1,183
    freesky
    23rd September 2021, 18:45 Go to last post

  14. QWebEngineView + QPropertyAnimation make animation very slow

    Started by nalnalital, 31st August 2021 09:18
    qpropertyanimation, qwebengineview 1 Attachment(s)
    • Replies: 1
    • Views: 1,188
    nalnalital
    21st September 2021, 15:40 Go to last post

  15. Question Cursor stops being redrawn when QTextEdit::dropEvent() overrided

    Started by Workeml, 10th November 2008 20:43
    • Replies: 8
    • Views: 5,774
    mohamed469
    15th September 2021, 06:35 Go to last post

  16. QGraphicsScene: adding QGraphicsProxyWidget moves others QGraphicsEllipseItem

    Started by Doxy82, 9th September 2021 19:29
    qgraphicsellipseitem, qgraphicsproxywidget, qgraphicsscene 2 Attachment(s)
    • Replies: 1
    • Views: 988
    d_stranz
    10th September 2021, 00:09 Go to last post

  17. Question Edit QGraphicsTextItem when click on it

    Started by flavien317, 14th June 2014 13:50
    click, edit, qgraphicstextitem
    • Replies: 2
    • Views: 4,163
    d_stranz
    5th September 2021, 16:08 Go to last post

  18. Multiple plugins in the same library

    Started by franco.amato, 4th September 2021 20:48
    • Replies: 2
    • Views: 960
    d_stranz
    5th September 2021, 15:52 Go to last post

  19. Question How can I properly implement QSortFilterProxyModel.parent to handle a virtual column?

    Started by Unai, 1st September 2021 11:54
    model view qproxymodel, proxy model, pyside2
    • Replies: 5
    • Views: 1,425
    Unai
    2nd September 2021, 12:27 Go to last post

  20. Question QMenu behaving differently on different platforms

    Started by cRay, 24th August 2021 16:12
    embedded linux, qmenu
    • Replies: 2
    • Views: 1,236
    cRay
    31st August 2021, 11:25 Go to last post

  21. Question QLineEDit back color

    Started by rossedward01.rh@gmail.com, 14th July 2021 16:49
    background color, qlineedit
    • Replies: 2
    • Views: 1,606
    Ginsengelf
    30th August 2021, 07:53 Go to last post

  22. I have problems with QListWidget and QGridLayout

    Started by franco.amato, 28th August 2021 03:12
    2 Attachment(s)
    • Replies: 3
    • Views: 1,165
    franco.amato
    30th August 2021, 06:37 Go to last post

  23. Lightbulb QMainWindow::restoreGeometry does weird things to floating QDockWidgets?

    Started by stryga42, 27th August 2021 19:31
    gnome, linux, qmainwindow, window stacking order
    • Replies: 0
    • Views: 1,283
    stryga42
    27th August 2021, 19:31 Go to last post

  24. Incremental Encoder adn Raspberry PI

    Started by dian safari, 28th July 2021 09:25
    • Replies: 1
    • Views: 1,291
    stryga42
    27th August 2021, 18:34 Go to last post

  25. Rename a Tab of a QTabWidget

    Started by Qiieha, 12th July 2011 15:52
    • Replies: 8
    • Views: 12,543
    d_stranz
    27th August 2021, 18:26 Go to last post

  26. ISO-C++ verbietet Deklaration von »bikinmenupos« ohne Typ [-fpermissive]

    Started by opentek, 24th August 2021 04:31
    deklaration, iso-c++, ohne typ, verbietet, [-fpermissive] 4 Attachment(s)
    • Replies: 6
    • Views: 6,925
    opentek
    25th August 2021, 05:07 Go to last post

  27. Question Detect when the content of a cell of QTableView is changed

    Started by qt_developer, 18th May 2012 18:48
    cell, qabstractitemview, qitemselectionmodel, qtableview, signal
    • Replies: 5
    • Views: 27,447
    d_stranz
    21st August 2021, 16:00 Go to last post

  28. Does Qt use Sql?

    Started by ravas, 4th March 2016 18:40
    sql
    • Replies: 5
    • Views: 6,149
    trishlasingh
    21st August 2021, 11:43 Go to last post

  29. QLineEdit too short when editing item in QTreeView

    Started by hakkman, 18th August 2021 21:19
    2 Attachment(s)
    • Replies: 1
    • Views: 1,100
    d_stranz
    19th August 2021, 15:43 Go to last post

  30. QSqlRelationalDelegate displays foreign_key of the related record instead of name

    Started by GrayWizard12345, 10th August 2021 07:11
    pyqt, pyqt 5, pyqt delegates, pyqt tableview, qsqlrelationaltablemodel
    • Replies: 1
    • Views: 2,605
    GrayWizard12345
    13th August 2021, 07:16 Go to last post
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