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Forum: Newbie

Newbie to Qt? Ask your questions here.

  1. error when linking opencv libraries in QT

    Started by lagarcia, 19th March 2020 18:23
    • Replies: 2
    • Views: 2,127
    lagarcia
    19th March 2020, 23:10 Go to last post

  2. Unhappy Qt won't recognize QString::replace function.

    Started by Warumato, 19th March 2020 02:47
    #replace #qstring
    • Replies: 3
    • Views: 3,127
    d_stranz
    19th March 2020, 18:41 Go to last post

  3. QNetworkReply is empty

    Started by lagarcia, 18th March 2020 06:03
    • Replies: 2
    • Views: 2,011
    lagarcia
    18th March 2020, 17:12 Go to last post

  4. intercepting button clicks in QDialogButtonBox

    Started by ceraolo, 22nd November 2013 08:32
    • Replies: 7
    • Views: 32,965
    Larswad
    17th March 2020, 13:13 Go to last post

  5. Drag and drop an image on a QTextEdit

    Started by somebob, 16th March 2020 12:56
    qt5, qtextedit 1 Attachment(s)
    • Replies: 0
    • Views: 2,893
    somebob
    16th March 2020, 12:56 Go to last post

  6. Question Qt Designer & uic. How to do custom stuff when a button is pushed (c++)

    Started by lazy, 14th March 2020 00:27
    c++, qt designer, uic
    • Replies: 2
    • Views: 2,526
    d_stranz
    14th March 2020, 15:54 Go to last post

  7. Insert and read Image in QLable using QDataWidgetMapper

    Started by hsm13, 7th November 2011 00:50
    • Replies: 16
    • Views: 9,805
    ChrisW67
    12th March 2020, 05:03 Go to last post

  8. How to show two states of a rectangle in PyQt/PySide2

    Started by illuzioner1, 9th March 2020 03:37
    brush, graphicsitem, pyqt 5, pyside2
    • Replies: 3
    • Views: 3,859
    d_stranz
    10th March 2020, 05:18 Go to last post

  9. Prerequisites for Installing Qt creator & Steps for making the environment

    Started by Lingesh, 9th March 2020 07:21
    qt 4.8.4
    • Replies: 1
    • Views: 1,802
    d_stranz
    9th March 2020, 18:07 Go to last post

  10. Qt server-side and database

    Started by mircha, 6th March 2020 13:03
    • Replies: 1
    • Views: 2,205
    d_stranz
    6th March 2020, 17:29 Go to last post

  11. How to Build & Run Qt Version 4.8.4 from QT Creator 4.11.0

    Started by Lingesh, 4th March 2020 12:56
    qt 4.8.4 version
    • Replies: 1
    • Views: 3,689
    d_stranz
    4th March 2020, 17:38 Go to last post

  12. How to find which button was pressed (PyQt5)

    Started by RickTee, 27th January 2020 12:26
    • Replies: 4
    • Views: 6,895
    ChrisW67
    3rd March 2020, 12:27 Go to last post

  13. QCustomPlot, changing graph scale and resizing data

    Started by Thibaut, 2nd March 2020 15:21
    graph, overlapping, plot, qcustomplot, scale
    • Replies: 1
    • Views: 5,128
    d_stranz
    2nd March 2020, 18:11 Go to last post

  14. Proper way to delete a QMap

    Started by jano_alex_es, 16th June 2009 11:23
    • Replies: 4
    • Views: 9,605
    d_stranz
    28th February 2020, 18:31 Go to last post

  15. statusbar

    Started by buster, 15th February 2020 17:50
    • Replies: 13
    • Views: 31,725
    d_stranz
    21st February 2020, 17:10 Go to last post

  16. QTreeWidget update problem

    Started by Eduardo Huerta, 17th February 2020 22:38
    1 Attachment(s)
    • Replies: 1
    • Views: 6,763
    d_stranz
    18th February 2020, 04:03 Go to last post

  17. Incrementing and decrementing ListView

    Started by Vysero, 17th February 2020 22:34
    • Replies: 0
    • Views: 12,669
    Vysero
    17th February 2020, 22:34 Go to last post

  18. Play oga files with QSoundEffect

    Started by vahagn, 17th February 2020 14:38
    • Replies: 0
    • Views: 1,218
    vahagn
    17th February 2020, 14:38 Go to last post

  19. Smile Project ERROR: Unknown module(s) in QT: mqtt

    Started by akkarachai, 7th December 2019 18:55
    • Replies: 3
    • Views: 14,217
    d_stranz
    16th February 2020, 17:43 Go to last post

  20. Exclamation problem in adding Qstring in 1st column in Qtableview/Qtablewidget

    Started by deby25, 12th February 2020 12:56
    qstandarditem, qstandarditem model, qtable view, qtablewidget
    • Replies: 4
    • Views: 15,451
    deby25
    16th February 2020, 12:33 Go to last post

  21. Question Signals and Slots only don't work

    Started by QwQ, 4th February 2020 16:28
    signal and slots, signal not emitted 1 Attachment(s)
    • Replies: 1
    • Views: 8,799
    Maxfooo
    14th February 2020, 18:08 Go to last post

  22. QMenu take Main Window focus

    Started by Thibaut, 11th February 2020 11:30
    focus, move, qmenu, resize
    • Replies: 1
    • Views: 11,810
    Thibaut
    14th February 2020, 15:02 Go to last post

  23. How to use GMP with Qt creator 5 (latest version) on Windows?

    Started by lehuyduc, 10th February 2020 16:31
    gmp, library, qt creator
    • Replies: 0
    • Views: 20,921
    lehuyduc
    10th February 2020, 16:31 Go to last post

  24. I cannot get QGraphicsRectItem to change colour on mousedoubleclickevent

    Started by Docas, 31st January 2020 22:28
    • Replies: 11
    • Views: 12,234
    d_stranz
    9th February 2020, 21:46 Go to last post

  25. Can't get the notify signal in QML

    Started by iveus, 7th February 2020 19:05
    • Replies: 2
    • Views: 7,586
    iveus
    8th February 2020, 12:43 Go to last post

  26. Question Error while compiling qt5.7 in centos 8.0

    Started by vipul5798, 6th February 2020 07:49
    centos 8.0, compiling error, qt5.7
    • Replies: 2
    • Views: 9,545
    vipul5798
    7th February 2020, 09:29 Go to last post

  27. QGraphicRectItem update colour in foreach statement

    Started by Docas, 31st January 2020 15:23
    4 Attachment(s)
    • Replies: 13
    • Views: 11,526
    d_stranz
    5th February 2020, 19:44 Go to last post

  28. How to design an interactive image viewer for big gray-scale images

    Started by Notsocute, 30th January 2020 00:36
    • Replies: 6
    • Views: 6,462
    Notsocute
    4th February 2020, 21:57 Go to last post

  29. Undefined reference

    Started by buster, 2nd February 2020 18:24
    • Replies: 1
    • Views: 6,727
    d_stranz
    2nd February 2020, 21:39 Go to last post

  30. problem reading the serial port

    Started by Eduardo Huerta, 31st January 2020 19:53
    • Replies: 1
    • Views: 6,606
    ChrisW67
    31st January 2020, 22:13 Go to last post
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