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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. display multimedia camera in QT3D

    Started by FCT77, 7th January 2021 03:26
    • Replies: 0
    • Views: 4,247
    FCT77
    7th January 2021, 03:26 Go to last post

  2. How to properly synchronize two threads accessing a QQueue simultaneously

    Started by franco.amato, 4th January 2021 05:09
    • Replies: 1
    • Views: 3,495
    d_stranz
    4th January 2021, 18:10 Go to last post

  3. Find newline character in a QTextEdit / QPlainTextEdit

    Started by Fred, 2nd January 2021 12:02
    • Replies: 4
    • Views: 3,691
    Fred
    3rd January 2021, 20:05 Go to last post

  4. Qt app using oAuth2.0 for authentification

    Started by SteveQt, 24th November 2015 16:48
    • Replies: 2
    • Views: 7,034
    pablodiazgutierrez
    19th December 2020, 02:48 Go to last post

  5. Make Clean not working as in previous version of QTcreator

    Started by emp1953, 14th December 2020 18:13
    make clean, qmake, run time 1 Attachment(s)
    • Replies: 3
    • Views: 5,366
    ChrisW67
    17th December 2020, 09:41 Go to last post

  6. How to implement HCI calls in QtCreator ?

    Started by anneranch, 15th December 2020 17:44
    hci
    • Replies: 2
    • Views: 2,144
    d_stranz
    15th December 2020, 18:19 Go to last post

  7. Question Groups inside QTreeView (using QAbstractItemModel)

    Started by gabo, 8th December 2020 11:55
    group, qabstractitemmodel, qstandarditemmodel, qtcreator, qtreeview 1 Attachment(s)
    • Replies: 4
    • Views: 4,694
    gabo
    14th December 2020, 12:33 Go to last post

  8. Drawing on top of all widgets

    Started by quant, 9th December 2020 11:59
    • Replies: 3
    • Views: 2,582
    quant
    13th December 2020, 12:31 Go to last post

  9. Exclamation [Qt6] StartDrag making crash on Qt6

    Started by Alundra, 11th December 2020 22:22
    • Replies: 6
    • Views: 8,162
    Alundra
    12th December 2020, 23:18 Go to last post

  10. Remove tab in event not thread safe? Having an assert making the app crashing.

    Started by Alundra, 12th December 2020 19:08
    • Replies: 0
    • Views: 3,659
    Alundra
    12th December 2020, 19:08 Go to last post

  11. Question QGraphicsView, change mouse click/move item button (left is default)

    Started by sQaT, 10th December 2020 00:46
    python, qgraphicsscene, qgraphicsview
    • Replies: 2
    • Views: 5,607
    sQaT
    11th December 2020, 10:32 Go to last post

  12. Wrong C++ syntax

    Started by anneranch, 6th December 2020 18:19
    c++
    • Replies: 16
    • Views: 9,378
    d_stranz
    11th December 2020, 05:28 Go to last post

  13. Exclamation QPalette::PlaceholderText in stylesheet?

    Started by Alundra, 11th December 2020 01:41
    • Replies: 0
    • Views: 3,280
    Alundra
    11th December 2020, 01:41 Go to last post

  14. How can I dock widgets between two windows?

    Started by pixaeiro, 9th December 2020 00:23
    3 Attachment(s)
    • Replies: 1
    • Views: 2,850
    d_stranz
    9th December 2020, 02:01 Go to last post

  15. Best way of manage projects

    Started by franco.amato, 7th December 2020 04:06
    • Replies: 1
    • Views: 5,573
    d_stranz
    7th December 2020, 18:01 Go to last post

  16. QtDesigner cross-objects signal / slots - between two dialogs.

    Started by anneranch, 6th December 2020 18:05
    qtdesigner
    • Replies: 1
    • Views: 3,002
    d_stranz
    6th December 2020, 22:11 Go to last post

  17. Qt failing to compile claiming "fatal error: QObject: No such file or directory"

    Started by Momergil, 29th October 2015 17:15
    compilation error, headers not found
    • Replies: 6
    • Views: 14,940
    d_stranz
    6th December 2020, 18:06 Go to last post

  18. Question Custom layout which allows child widgets to be moved and re-positioned

    Started by sQaT, 3rd December 2020 07:03
    button drag drop, layout, python, widget 3 Attachment(s)
    • Replies: 4
    • Views: 4,951
    sQaT
    4th December 2020, 06:00 Go to last post

  19. How to write values to arrays with OPC UA client?

    Started by Ant Asp, 3rd December 2020 09:57
    opc, opcua, qopcuaclient
    • Replies: 0
    • Views: 3,792
    Ant Asp
    3rd December 2020, 09:57 Go to last post

  20. Question QListWidget items swapping

    Started by sbenoitlaf, 20th November 2020 15:16
    qlistwidget, qlistwidgetitems
    • Replies: 2
    • Views: 3,357
    sbenoitlaf
    2nd December 2020, 16:45 Go to last post

  21. Setting pixel color of 8-bit grayscale image using pointer

    Started by Deeds, 29th November 2020 21:14
    • Replies: 1
    • Views: 6,346
    Cruz
    2nd December 2020, 13:27 Go to last post

  22. QFontDialog BOLD hint on ARIAL not working?

    Started by mustermann.klaus@gmx.de, 21st November 2020 11:20
    hint, qfont, qfontdatabase, qfontdialog 1 Attachment(s)
    • Replies: 1
    • Views: 2,428
    mustermann.klaus@gmx.de
    30th November 2020, 22:23 Go to last post

  23. Unhappy How to connect 2 QCombobox by focus?

    Started by vinh, 28th November 2020 13:14
    c++, focus, qcombobox
    • Replies: 0
    • Views: 7,038
    vinh
    28th November 2020, 13:14 Go to last post

  24. QComboBox editingFinished

    Started by aekilic, 16th April 2009 23:33
    • Replies: 6
    • Views: 15,367
    vinh
    28th November 2020, 09:17 Go to last post

  25. QDockWidget is not getting closed if it is floating

    Started by mqt, 26th November 2020 09:27
    • Replies: 1
    • Views: 4,155
    d_stranz
    27th November 2020, 17:25 Go to last post

  26. Delegate should not commit on error in editor

    Started by TheGrudge, 26th November 2020 10:51
    • Replies: 1
    • Views: 4,784
    d_stranz
    27th November 2020, 17:19 Go to last post

  27. OpenGL offscreen rendering in a thread

    Started by Cruz, 25th November 2020 11:38
    • Replies: 2
    • Views: 5,312
    Cruz
    26th November 2020, 09:25 Go to last post

  28. Question QSerialPort's readyRead() signal is working strange

    Started by Alexander111122, 19th November 2020 23:49
    com-port, qserialport, readyread, rs485
    • Replies: 2
    • Views: 3,914
    Alexander111122
    25th November 2020, 12:53 Go to last post

  29. PyQt5 QSortFilterProxyModel hiding QWidget

    Started by pwyq, 21st November 2020 07:20
    • Replies: 3
    • Views: 6,599
    d_stranz
    22nd November 2020, 17:29 Go to last post

  30. Logging or journaling clicks/actions taken by the user

    Started by NameRakes, 22nd November 2020 00:52
    journal, log, replay
    • Replies: 1
    • Views: 3,666
    ChrisW67
    22nd November 2020, 03:47 Go to last post
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