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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. How to reverse the order of the same keys when inserted using QMultiMap

    Started by franco.amato, 15th February 2022 00:14
    • Replies: 1
    • Views: 5,277
    Ginsengelf
    15th February 2022, 07:17 Go to last post

  2. Read a file containing key-value pair

    Started by franco.amato, 14th February 2022 20:33
    • Replies: 1
    • Views: 4,289
    Ginsengelf
    15th February 2022, 07:15 Go to last post

  3. Drawing lines in QPainter takes a lot of time

    Started by xcxl, 4th June 2019 12:47
    2 Pages •
    1 2
    draw, line, lines, qpainter 1 Attachment(s)
    • Replies: 21
    • Views: 73,215
    xcxl
    13th February 2022, 17:59 Go to last post

  4. Question qmake sessions and placing subdir outputs into global binary dir (OUT_DIR)

    Started by ghorwin, 8th February 2022 12:19
    • Replies: 1
    • Views: 4,692
    d_stranz
    8th February 2022, 16:44 Go to last post

  5. Question Resource search/lookup tool/script to check completeness and correctness of qrc files

    Started by ghorwin, 25th January 2022 07:41
    qrc unused pixmap
    • Replies: 5
    • Views: 9,315
    d_stranz
    8th February 2022, 16:25 Go to last post

  6. Trying to convert python code to Qt c++

    Started by panoss, 5th February 2022 16:31
    • Replies: 2
    • Views: 4,001
    Ginsengelf
    7th February 2022, 07:19 Go to last post

  7. KDE Plasma HiDPI icons

    Started by Vicolaships, 5th February 2022 12:59
    hidpi, kde, plasma 2 Attachment(s)
    • Replies: 1
    • Views: 4,634
    Ginsengelf
    7th February 2022, 07:14 Go to last post

  8. How to use QRegExp to check if a QString contains 3 letters consecutively?

    Started by sophvic, 6th February 2022 20:48
    • Replies: 0
    • Views: 15,540
    sophvic
    6th February 2022, 20:48 Go to last post

  9. needs to instantiate a dialogue in a switch construct

    Started by franco.amato, 31st January 2022 04:19
    • Replies: 2
    • Views: 3,952
    d_stranz
    31st January 2022, 15:44 Go to last post

  10. Serialize and read a QVector<QMultiMap<QString, QString>> to a QDataStream

    Started by franco.amato, 24th January 2022 22:19
    • Replies: 2
    • Views: 5,971
    franco.amato
    25th January 2022, 21:08 Go to last post

  11. QTreeWidget takeChildren() without removing

    Started by franco.amato, 20th January 2022 15:59
    qtreewidget
    • Replies: 3
    • Views: 9,028
    franco.amato
    21st January 2022, 01:34 Go to last post

  12. Strange behavior with QTableWidget

    Started by franco.amato, 10th January 2022 21:21
    • Replies: 5
    • Views: 8,682
    d_stranz
    12th January 2022, 16:04 Go to last post

  13. QWizardPage, page id and designer

    Started by zaphod.b, 10th January 2022 13:47
    • Replies: 0
    • Views: 13,603
    zaphod.b
    10th January 2022, 13:47 Go to last post

  14. How to update size of nested QWidget?

    Started by Maryu, 24th December 2021 17:40
    layout, qscrollarea, resizing to content
    • Replies: 3
    • Views: 21,203
    d_stranz
    25th December 2021, 16:39 Go to last post

  15. Qt5 and Qt6 font render mismatches

    Started by diverlin, 10th December 2021 22:30
    font-rendering 2 Attachment(s)
    • Replies: 0
    • Views: 13,847
    diverlin
    10th December 2021, 22:30 Go to last post

  16. Strange compilation errors when using "invokeMethod"

    Started by jcbaraza, 7th December 2021 20:46
    compilation error, invokemethod, multithreading, qthreadpool
    • Replies: 4
    • Views: 7,669
    jcbaraza
    8th December 2021, 17:23 Go to last post

  17. 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: 8,776
    franco.amato
    29th November 2021, 12:51 Go to last post

  18. Programatically add USerRole data to specific cell of QAbstractTableMode

    Started by franco.amato, 26th November 2021 04:47
    • Replies: 5
    • Views: 9,386
    d_stranz
    27th November 2021, 00:58 Go to last post

  19. One GL Context Multiple Widgets - Qt 6

    Started by qtoptus, 24th November 2021 16:59
    • Replies: 6
    • Views: 12,187
    d_stranz
    26th November 2021, 16:36 Go to last post

  20. Questions on SQL using QSqlDatabase

    Started by sophvic, 23rd November 2021 20:48
    • Replies: 0
    • Views: 6,475
    sophvic
    23rd November 2021, 20:48 Go to last post

  21. 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: 8,476
    d_stranz
    23rd November 2021, 17:02 Go to last post

  22. QCamera viewfindersettings

    Started by on4qz, 23rd November 2021 15:04
    1 Attachment(s)
    • Replies: 0
    • Views: 5,070
    on4qz
    23rd November 2021, 15:04 Go to last post

  23. creating custom signal

    Started by aj2903, 14th March 2009 06:51
    • Replies: 10
    • Views: 58,434
    swati777999
    18th November 2021, 09:33 Go to last post

  24. QFileDialog selecting file or directory

    Started by ^NyAw^, 19th June 2008 15:29
    • Replies: 5
    • Views: 23,761
    d_stranz
    13th November 2021, 23:03 Go to last post

  25. Moving selected items from QTableWidget1 to QTableWidget2

    Started by franco.amato, 13th November 2021 12:39
    • Replies: 1
    • Views: 4,236
    d_stranz
    13th November 2021, 15:55 Go to last post

  26. QGraphicsItem - ignore parent scaling - allow local scaling

    Started by WolfByte, 9th November 2021 19:47
    • Replies: 7
    • Views: 10,181
    WolfByte
    12th November 2021, 18:05 Go to last post

  27. How to remove whitespace inside XML tag?

    Started by sophvic, 7th November 2021 03:10
    • Replies: 3
    • Views: 8,902
    d_stranz
    11th November 2021, 15:20 Go to last post

  28. Question Does QDataWidgetMapper use flags?

    Started by Netwiz, 22nd September 2009 00:29
    flags, qdatawidgetmapper, widgets
    • Replies: 1
    • Views: 8,874
    NameRakes
    29th October 2021, 00:56 Go to last post

  29. Problems with QGridLayout

    Started by franco.amato, 26th October 2021 08:20
    layout management, qgridlayout 2 Attachment(s)
    • Replies: 2
    • Views: 6,672
    d_stranz
    26th October 2021, 18:25 Go to last post

  30. 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: 5,593
    ernie_R
    24th October 2021, 19:13 Go to last post
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