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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. QFileDialog.getOpenFileNames crashes the interpreter

    Started by pfeldman, 7th November 2020 23:44
    multiple files, qfiledialog
    • Replies: 2
    • Views: 3,461
    d_stranz
    8th November 2020, 22:06 Go to last post

  2. how to call signal from GUI to dll with the same object

    Started by praveenhi5, 9th November 2020 06:44
    gui to dll signal 1 Attachment(s)
    • Replies: 1
    • Views: 6,471
    d_stranz
    9th November 2020, 15:55 Go to last post

  3. QAudioInput/QAudioInput backend choosing in Qt5/Windows 7

    Started by Alekon, 13th November 2020 09:54
    backend, plugin, qaudioinput, qaudiooutput, qt multimedia
    • Replies: 0
    • Views: 4,919
    Alekon
    13th November 2020, 09:54 Go to last post

  4. volatile - extern problem with libusb how do protect external variale?

    Started by andreaQt, 13th November 2020 12:05
    1 Attachment(s)
    • Replies: 1
    • Views: 3,596
    andreaQt
    14th November 2020, 07:31 Go to last post

  5. QMetaObject::invokeMethod, call from main->slot to MainWindow->slot how i can do it?

    Started by andreaQt, 16th November 2020 10:20
    • Replies: 1
    • Views: 2,040
    Ginsengelf
    16th November 2020, 13:45 Go to last post

  6. Question QMediaPlayer crash using QPlaylist

    Started by MongKong, 31st March 2020 19:50
    2d-game, game, qmediaplayer, sound 3 Attachment(s)
    • Replies: 1
    • Views: 6,590
    thebestshade
    18th November 2020, 16:49 Go to last post

  7. [SOLVED] Drawing a triangle using PyQt5 and OpenGL (rewriting the Qt C++ example)

    Started by 8Observer8, 19th November 2020 15:43
    • Replies: 0
    • Views: 3,027
    8Observer8
    19th November 2020, 15:43 Go to last post

  8. LNK1181: cannot open input file 'debug\dialogistorija.obj'

    Started by bozidark35, 20th November 2020 14:31
    • Replies: 0
    • Views: 2,857
    bozidark35
    20th November 2020, 14:31 Go to last post

  9. TreeView, how to status on a row?

    Started by virago1100, 19th November 2020 12:14
    ondoubleclick, qml, treeview
    • Replies: 3
    • Views: 5,000
    d_stranz
    20th November 2020, 16:09 Go to last post

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

    Started by NameRakes, 21st November 2020 23:52
    journal, log, replay
    • Replies: 1
    • Views: 3,924
    ChrisW67
    22nd November 2020, 02:47 Go to last post

  11. PyQt5 QSortFilterProxyModel hiding QWidget

    Started by pwyq, 21st November 2020 06:20
    • Replies: 3
    • Views: 6,896
    d_stranz
    22nd November 2020, 16:29 Go to last post

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

    Started by Alexander111122, 19th November 2020 22:49
    com-port, qserialport, readyread, rs485
    • Replies: 2
    • Views: 4,636
    Alexander111122
    25th November 2020, 11:53 Go to last post

  13. OpenGL offscreen rendering in a thread

    Started by Cruz, 25th November 2020 10:38
    • Replies: 2
    • Views: 5,787
    Cruz
    26th November 2020, 08:25 Go to last post

  14. Delegate should not commit on error in editor

    Started by TheGrudge, 26th November 2020 09:51
    • Replies: 1
    • Views: 5,061
    d_stranz
    27th November 2020, 16:19 Go to last post

  15. QDockWidget is not getting closed if it is floating

    Started by mqt, 26th November 2020 08:27
    • Replies: 1
    • Views: 4,500
    d_stranz
    27th November 2020, 16:25 Go to last post

  16. QComboBox editingFinished

    Started by aekilic, 16th April 2009 22:33
    • Replies: 6
    • Views: 16,021
    vinh
    28th November 2020, 08:17 Go to last post

  17. Unhappy How to connect 2 QCombobox by focus?

    Started by vinh, 28th November 2020 12:14
    c++, focus, qcombobox
    • Replies: 0
    • Views: 7,736
    vinh
    28th November 2020, 12:14 Go to last post

  18. QFontDialog BOLD hint on ARIAL not working?

    Started by mustermann.klaus@gmx.de, 21st November 2020 10:20
    hint, qfont, qfontdatabase, qfontdialog 1 Attachment(s)
    • Replies: 1
    • Views: 2,916
    mustermann.klaus@gmx.de
    30th November 2020, 21:23 Go to last post

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

    Started by Deeds, 29th November 2020 20:14
    • Replies: 1
    • Views: 6,747
    Cruz
    2nd December 2020, 12:27 Go to last post

  20. Question QListWidget items swapping

    Started by sbenoitlaf, 20th November 2020 14:16
    qlistwidget, qlistwidgetitems
    • Replies: 2
    • Views: 3,819
    sbenoitlaf
    2nd December 2020, 15:45 Go to last post

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

    Started by Ant Asp, 3rd December 2020 08:57
    opc, opcua, qopcuaclient
    • Replies: 0
    • Views: 4,093
    Ant Asp
    3rd December 2020, 08:57 Go to last post

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

    Started by sQaT, 3rd December 2020 06:03
    button drag drop, layout, python, widget 3 Attachment(s)
    • Replies: 4
    • Views: 5,622
    sQaT
    4th December 2020, 05:00 Go to last post

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

    Started by Momergil, 29th October 2015 16:15
    compilation error, headers not found
    • Replies: 6
    • Views: 16,015
    d_stranz
    6th December 2020, 17:06 Go to last post

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

    Started by anneranch, 6th December 2020 17:05
    qtdesigner
    • Replies: 1
    • Views: 3,294
    d_stranz
    6th December 2020, 21:11 Go to last post

  25. Best way of manage projects

    Started by franco.amato, 7th December 2020 03:06
    • Replies: 1
    • Views: 5,764
    d_stranz
    7th December 2020, 17:01 Go to last post

  26. How can I dock widgets between two windows?

    Started by pixaeiro, 8th December 2020 23:23
    3 Attachment(s)
    • Replies: 1
    • Views: 3,285
    d_stranz
    9th December 2020, 01:01 Go to last post

  27. Exclamation QPalette::PlaceholderText in stylesheet?

    Started by Alundra, 11th December 2020 00:41
    • Replies: 0
    • Views: 3,662
    Alundra
    11th December 2020, 00:41 Go to last post

  28. Wrong C++ syntax

    Started by anneranch, 6th December 2020 17:19
    c++
    • Replies: 16
    • Views: 11,640
    d_stranz
    11th December 2020, 04:28 Go to last post

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

    Started by sQaT, 9th December 2020 23:46
    python, qgraphicsscene, qgraphicsview
    • Replies: 2
    • Views: 6,270
    sQaT
    11th December 2020, 09:32 Go to last post

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

    Started by Alundra, 12th December 2020 18:08
    • Replies: 0
    • Views: 3,909
    Alundra
    12th December 2020, 18:08 Go to last post
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