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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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    • Posts: 10,901

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  1. How to interrupt a QtConcurrent::blockingMap

    Started by StefanCat, 10th February 2016 16:51
    • Replies: 12
    • Views: 9,653
    VTiTux
    29th July 2022, 17:44 Go to last post

  2. Question QAbstractItemModel now showing data in QTableView

    Started by scarleton, 23rd July 2022 16:11
    • Replies: 2
    • Views: 3,060
    scarleton
    23rd July 2022, 16:29 Go to last post

  3. Can't get child of qDomNode

    Started by davidlamhauge, 21st July 2022 08:28
    qdomdocument, qdomnode, xml
    • Replies: 5
    • Views: 3,789
    davidlamhauge
    23rd July 2022, 08:59 Go to last post

  4. Scene vs. multiple views

    Started by lni, 6th February 2009 15:50
    1 Attachment(s)
    • Replies: 16
    • Views: 16,297
    d_stranz
    19th July 2022, 01:47 Go to last post

  5. Use "LOAD DATA LOCAL INFILE" with Qt SQL - How to setup loose-local-infile = 1

    Started by qlands, 12th July 2022 17:13
    mysql & qt, qsqlquery
    • Replies: 1
    • Views: 4,311
    qlands
    13th July 2022, 11:42 Go to last post

  6. Split QStringList in Chucks

    Started by qlands, 4th July 2022 15:29
    qstringlist
    • Replies: 2
    • Views: 3,791
    d_stranz
    5th July 2022, 17:05 Go to last post

  7. Question QGraphicsProxyWidget usage leads to QApplication destructor crashing

    Started by redsoft, 25th June 2022 18:00
    qapplication, qgraphicsproxywidget
    • Replies: 1
    • Views: 3,228
    d_stranz
    1st July 2022, 16:24 Go to last post

  8. Using two separate databases over ODBC inside a class fails

    Started by Tiansen, 8th June 2022 20:08
    • Replies: 2
    • Views: 3,150
    Tiansen
    9th June 2022, 22:16 Go to last post

  9. QFontMetrics::boundingRect() and QPainter::draw() differences.

    Started by Lykurg, 27th February 2013 10:02
    • Replies: 3
    • Views: 10,578
    Blanky
    9th June 2022, 16:29 Go to last post

  10. Viewing QSqlTableModel in QTreeView through a proxy model

    Started by kazaak, 7th January 2018 21:04
    qsqltablemodel, qtreeview
    • Replies: 3
    • Views: 16,855
    d_stranz
    28th May 2022, 16:37 Go to last post

  11. How to create an SQL Function in QSqlDatabase?

    Started by VVS, 30th March 2022 18:02
    qt sqlite
    • Replies: 1
    • Views: 6,981
    stryga42
    27th May 2022, 18:11 Go to last post

  12. Qt::WA_TransparentForMouseEvents

    Started by zaphod.b, 23rd May 2022 14:06
    • Replies: 3
    • Views: 8,308
    zaphod.b
    24th May 2022, 10:30 Go to last post

  13. QOpenGLWidget and swapBuffers outside paintGL

    Started by aftos, 24th May 2022 08:53
    • Replies: 0
    • Views: 14,730
    aftos
    24th May 2022, 08:53 Go to last post

  14. Create an object instance in separate thread

    Started by franco.amato, 4th May 2022 18:56
    • Replies: 4
    • Views: 5,490
    d_stranz
    6th May 2022, 17:54 Go to last post

  15. Qt 5.15 Multitouch issue

    Started by webquinty, 12th April 2022 13:01
    • Replies: 3
    • Views: 5,114
    d_stranz
    14th April 2022, 16:15 Go to last post

  16. How to set a "dark color theme" for all widgets within the application ?

    Started by ralfwickum, 23rd July 2015 08:26
    color, dark, theme
    • Replies: 2
    • Views: 30,333
    osirisgothra
    13th April 2022, 18:26 Go to last post

  17. Error while installing OpenCV with Qt

    Started by mlte, 21st March 2022 02:50
    opencv qt 1 Attachment(s)
    • Replies: 1
    • Views: 3,050
    d_stranz
    21st March 2022, 15:06 Go to last post

  18. QSqlTableModel, how to recognize new records from dirty records

    Started by franco.amato, 18th March 2022 20:12
    • Replies: 4
    • Views: 3,252
    d_stranz
    20th March 2022, 15:52 Go to last post

  19. Remove item from QTableView by drag

    Started by franco.amato, 14th March 2022 21:03
    • Replies: 3
    • Views: 3,109
    d_stranz
    15th March 2022, 15:18 Go to last post

  20. action with shortcut triggers in parent

    Started by tuli, 4th March 2022 19:46
    • Replies: 1
    • Views: 2,582
    franco.amato
    14th March 2022, 20:58 Go to last post

  21. How to exclude a specific file extension from QDir::entryList

    Started by franco.amato, 7th March 2022 19:00
    • Replies: 2
    • Views: 4,391
    d_stranz
    9th March 2022, 16:31 Go to last post

  22. How to communicate with USB device (EV3)

    Started by bclay1297@gmail.com, 14th February 2022 17:37
    usb ev3
    • Replies: 1
    • Views: 3,071
    wysota
    24th February 2022, 09:36 Go to last post

  23. Moved: Slow loading of Qt app on Android

    Started by ahsan735, 24th February 2022 15:33
    qt android 5.5 c++, qt android deployment
    •  
    •  

  24. Question QTableVIew shows number with commas but model->data(index).toString shows dots

    Started by polrus, 8th February 2022 14:03
    • Replies: 3
    • Views: 2,718
    d_stranz
    18th February 2022, 19:48 Go to last post

  25. Angry QSortFilterProxyModel very slow when moving a lot of rows

    Started by gabo, 16th February 2022 13:30
    item model, move rows, persistent index, qsortfilterproxymodel, sort
    • Replies: 1
    • Views: 3,429
    d_stranz
    16th February 2022, 16:37 Go to last post

  26. 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: 2,701
    Ginsengelf
    15th February 2022, 07:17 Go to last post

  27. Read a file containing key-value pair

    Started by franco.amato, 14th February 2022 20:33
    • Replies: 1
    • Views: 2,352
    Ginsengelf
    15th February 2022, 07:15 Go to last post

  28. 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: 25,372
    xcxl
    13th February 2022, 17:59 Go to last post

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

    Started by ghorwin, 8th February 2022 12:19
    • Replies: 1
    • Views: 2,474
    d_stranz
    8th February 2022, 16:44 Go to last post

  30. 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: 3,590
    d_stranz
    8th February 2022, 16:25 Go to last post
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