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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. Question QListWidget items swapping

    Started by sbenoitlaf, 20th November 2020 14:16
    qlistwidget, qlistwidgetitems
    • Replies: 2
    • Views: 3,967
    sbenoitlaf
    2nd December 2020, 15:45 Go to last post

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

    Started by Deeds, 29th November 2020 20:14
    • Replies: 1
    • Views: 6,829
    Cruz
    2nd December 2020, 12:27 Go to last post

  3. 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: 3,029
    mustermann.klaus@gmx.de
    30th November 2020, 21:23 Go to last post

  4. Unhappy How to connect 2 QCombobox by focus?

    Started by vinh, 28th November 2020 12:14
    c++, focus, qcombobox
    • Replies: 0
    • Views: 8,090
    vinh
    28th November 2020, 12:14 Go to last post

  5. QComboBox editingFinished

    Started by aekilic, 16th April 2009 22:33
    • Replies: 6
    • Views: 16,215
    vinh
    28th November 2020, 08:17 Go to last post

  6. QDockWidget is not getting closed if it is floating

    Started by mqt, 26th November 2020 08:27
    • Replies: 1
    • Views: 4,626
    d_stranz
    27th November 2020, 16:25 Go to last post

  7. Delegate should not commit on error in editor

    Started by TheGrudge, 26th November 2020 09:51
    • Replies: 1
    • Views: 5,128
    d_stranz
    27th November 2020, 16:19 Go to last post

  8. OpenGL offscreen rendering in a thread

    Started by Cruz, 25th November 2020 10:38
    • Replies: 2
    • Views: 5,939
    Cruz
    26th November 2020, 08:25 Go to last post

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

    Started by Alexander111122, 19th November 2020 22:49
    com-port, qserialport, readyread, rs485
    • Replies: 2
    • Views: 4,853
    Alexander111122
    25th November 2020, 11:53 Go to last post

  10. PyQt5 QSortFilterProxyModel hiding QWidget

    Started by pwyq, 21st November 2020 06:20
    • Replies: 3
    • Views: 6,977
    d_stranz
    22nd November 2020, 16:29 Go to last post

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

    Started by NameRakes, 21st November 2020 23:52
    journal, log, replay
    • Replies: 1
    • Views: 3,993
    ChrisW67
    22nd November 2020, 02:47 Go to last post

  12. TreeView, how to status on a row?

    Started by virago1100, 19th November 2020 12:14
    ondoubleclick, qml, treeview
    • Replies: 3
    • Views: 5,251
    d_stranz
    20th November 2020, 16:09 Go to last post

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

    Started by bozidark35, 20th November 2020 14:31
    • Replies: 0
    • Views: 3,019
    bozidark35
    20th November 2020, 14:31 Go to last post

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

    Started by 8Observer8, 19th November 2020 15:43
    • Replies: 0
    • Views: 3,099
    8Observer8
    19th November 2020, 15:43 Go to last post

  15. Question QMediaPlayer crash using QPlaylist

    Started by MongKong, 31st March 2020 19:50
    2d-game, game, qmediaplayer, sound 3 Attachment(s)
    • Replies: 1
    • Views: 6,806
    thebestshade
    18th November 2020, 16:49 Go to last post

  16. 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: 2,096
    Ginsengelf
    16th November 2020, 13:45 Go to last post

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

    Started by andreaQt, 13th November 2020 12:05
    1 Attachment(s)
    • Replies: 1
    • Views: 3,655
    andreaQt
    14th November 2020, 07:31 Go to last post

  18. 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: 5,091
    Alekon
    13th November 2020, 09:54 Go to last post

  19. 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: 6,529
    d_stranz
    9th November 2020, 15:55 Go to last post

  20. QFileDialog.getOpenFileNames crashes the interpreter

    Started by pfeldman, 7th November 2020 23:44
    multiple files, qfiledialog
    • Replies: 2
    • Views: 3,616
    d_stranz
    8th November 2020, 22:06 Go to last post

  21. Post QRect without Border

    Started by rohitkk, 27th June 2014 08:25
    qpainter, qprinter, qrect
    • Replies: 16
    • Views: 30,181
    d_stranz
    8th November 2020, 22:02 Go to last post

  22. Could not find QtWebEngineProcess.exe

    Started by KurtBestor, 8th November 2020 07:34
    • Replies: 0
    • Views: 36,386
    KurtBestor
    8th November 2020, 07:34 Go to last post

  23. Flip/Mirror QCameraViewFinder

    Started by tve, 21st May 2018 13:51
    qabstractvideosurface, qcamera, qcameraviewfinder
    • Replies: 1
    • Views: 3,666
    davecotter
    7th November 2020, 17:34 Go to last post

  24. How to view a QObject's properties while debugging using Qt Creator on Windows (CDB)

    Started by markanth, 7th November 2020 04:32
    expression evaluator, opaque pointers, qtcreator
    • Replies: 0
    • Views: 3,029
    markanth
    7th November 2020, 04:32 Go to last post

  25. Sharing Data Between two Threads - QQueue or Semaphores?

    Started by Knudsen09, 3rd November 2020 17:50
    queue, semaphores, threading
    • Replies: 1
    • Views: 7,184
    d_stranz
    3rd November 2020, 20:21 Go to last post

  26. Rotate a QGraphicsPixmapItem with a rotation handle PyQt5

    Started by Carolina5, 26th October 2020 18:00
    pyqt5, pyqt5 qgraphicsitem
    • Replies: 1
    • Views: 7,700
    d_stranz
    31st October 2020, 15:35 Go to last post

  27. QStyledItemDelegate documentation is rather cryptic

    Started by pfeldman, 30th October 2020 22:25
    pyqt5-qtablewidget
    • Replies: 1
    • Views: 4,879
    ChrisW67
    30th October 2020, 22:53 Go to last post

  28. Passing some Unicode characters to Linux Qt applications

    Started by PCXT, 27th October 2020 23:14
    unicode, utf, x11, xlib
    • Replies: 4
    • Views: 14,751
    PCXT
    28th October 2020, 20:56 Go to last post

  29. QTableWidget fails to display column/row content correctly after MainWindow resize.

    Started by Milo47, 1st October 2020 14:44
    2 Attachment(s)
    • Replies: 10
    • Views: 6,573
    d_stranz
    27th October 2020, 16:46 Go to last post

  30. QMainWindow or QDialog show() - before displaying, the window area is painted white

    Started by VVS, 14th October 2020 08:36
    • Replies: 10
    • Views: 6,513
    VVS
    27th October 2020, 11:32 Go to last post
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