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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. No matching signal for on_pushButtonViewExistingProductRecords_clicked()

    Started by rahulvishwakarma, 8th April 2020 13:27
    centos 7.5, qt5.7.0
    • Replies: 6
    • Views: 3,064
    rahulvishwakarma
    9th April 2020, 07:42 Go to last post

  2. duplicate field value in query.

    Started by rahulvishwakarma, 8th April 2020 12:38
    linux, qt5.7
    • Replies: 2
    • Views: 3,289
    d_stranz
    8th April 2020, 16:12 Go to last post

  3. Develop IOS apps using Qt5

    Started by sophvic, 6th April 2020 17:15
    • Replies: 0
    • Views: 3,852
    sophvic
    6th April 2020, 17:15 Go to last post

  4. Create sharable container of multiple QWidgets

    Started by npatil15, 4th April 2020 10:10
    container widget, qwidget
    • Replies: 1
    • Views: 2,772
    d_stranz
    4th April 2020, 16:08 Go to last post

  5. qstring assignment crashes the program

    Started by rahulvishwakarma, 31st March 2020 12:06
    centos 7.5, qt5.7
    • Replies: 14
    • Views: 8,411
    Lesiok
    4th April 2020, 08:03 Go to last post

  6. Loading static images (png, jpeg) using QImage

    Started by avinaskpai12, 27th March 2020 06:40
    • Replies: 7
    • Views: 3,933
    d_stranz
    1st April 2020, 17:01 Go to last post

  7. undefined to reference to qt_wait_for_window_manager

    Started by tib, 27th March 2020 17:53
    qt3
    • Replies: 2
    • Views: 1,772
    tib
    31st March 2020, 22:16 Go to last post

  8. Add a custom widget to a "stock" Qt widget e.g. QSpinBox

    Started by auser, 30th March 2020 14:51
    1 Attachment(s)
    • Replies: 3
    • Views: 2,135
    d_stranz
    31st March 2020, 19:52 Go to last post

  9. QSSqlQuery CREATE TRIGGER not working

    Started by ckvsoft, 29th March 2020 12:16
    • Replies: 7
    • Views: 2,675
    Lesiok
    31st March 2020, 07:08 Go to last post

  10. Open odt files via Qt and Libreoffice api

    Started by YuriyRusinov, 26th March 2020 08:02
    libreoffice, qstring, qurl
    • Replies: 3
    • Views: 3,133
    ChristianEhrlicher
    27th March 2020, 19:58 Go to last post

  11. Can't Resize QScrollArea with a QSplitter

    Started by leinad, 25th March 2020 12:01
    1 Attachment(s)
    • Replies: 1
    • Views: 1,933
    leinad
    27th March 2020, 12:17 Go to last post

  12. Question QTableView VerticalScrollBar connect and insert rows

    Started by dibfibo, 23rd March 2020 15:40
    connect, insert, qtableview, rows, verticalscrollbar
    • Replies: 2
    • Views: 3,659
    dibfibo
    24th March 2020, 21:46 Go to last post

  13. how to find child widget from parent.

    Started by rahulvishwakarma, 24th March 2020 09:46
    centos 7.5, qt5.7.0
    • Replies: 1
    • Views: 3,743
    Lesiok
    24th March 2020, 12:23 Go to last post

  14. Crashing QGraphicsTextItem when updating HTML in PyQt

    Started by illuzioner1, 18th March 2020 00:21
    document, pyqt 5, qgraphicstextitem
    • Replies: 4
    • Views: 3,761
    illuzioner1
    24th March 2020, 01:35 Go to last post

  15. Starting a second executable using system( )

    Started by emp1953, 23rd March 2020 15:09
    error, executable, system()
    • Replies: 2
    • Views: 2,635
    emp1953
    23rd March 2020, 17:14 Go to last post

  16. Unhappy PyQT: The QSqlTableModel and how to wrap my head around it

    Started by fschober, 21st March 2020 04:50
    pyqt, pyton, qabstractitemmodel, qsql, qsqltablemodel
    • Replies: 11
    • Views: 9,676
    d_stranz
    22nd March 2020, 15:37 Go to last post

  17. How can I get the date out of QFileInfo?

    Started by emp1953, 20th March 2020 18:31
    qfileinfo
    • Replies: 2
    • Views: 2,005
    d_stranz
    20th March 2020, 20:07 Go to last post

  18. QTableView : display indicator on column header to display which ones can be sorted

    Started by olap74, 18th March 2020 15:25
    horizontalheader, indicator, qtableview, sort
    • Replies: 3
    • Views: 6,648
    d_stranz
    20th March 2020, 18:11 Go to last post

  19. Best practice for dynamic update of QTabelView

    Started by regenwo62, 20th March 2020 14:14
    qt5 qtableview
    • Replies: 1
    • Views: 1,493
    ChristianEhrlicher
    20th March 2020, 15:35 Go to last post

  20. Arrow Need Help Designing a Effective Threaded Application in PyQt5

    Started by Xevion, 20th March 2020 10:53
    pyqt, pyqt5, python, thread, timer
    • Replies: 0
    • Views: 3,426
    Xevion
    20th March 2020, 10:53 Go to last post

  21. Display .pdf file in Qt window screen

    Started by prabhatjha, 19th March 2020 17:12
    • Replies: 1
    • Views: 1,482
    d_stranz
    19th March 2020, 17:19 Go to last post

  22. Question duplicate connection name 'qt_sql_default_connection'

    Started by rahulvishwakarma, 18th March 2020 14:00
    centos7.5, qt 5.7 1 Attachment(s)
    • Replies: 3
    • Views: 4,467
    d_stranz
    18th March 2020, 16:39 Go to last post

  23. Detecting keyboard input from any window

    Started by illuzioner1, 14th March 2020 21:18
    key press, keybd_event, keyboard-events
    • Replies: 3
    • Views: 3,008
    d_stranz
    18th March 2020, 14:37 Go to last post

  24. Does QSqlTableModel::select emit dataChanged/rowsInserted signals?

    Started by qtcentre2019, 16th March 2020 16:00
    qsqltablemodel
    • Replies: 1
    • Views: 2,611
    d_stranz
    16th March 2020, 16:20 Go to last post

  25. QDebug assert failure crash in QRingBuffer

    Started by gfgit, 14th March 2020 14:35
    • Replies: 4
    • Views: 3,655
    gfgit
    16th March 2020, 12:23 Go to last post

  26. primary expression before '.'

    Started by rahulvishwakarma, 15th March 2020 11:21
    centos 7.5, qt 5.7
    • Replies: 2
    • Views: 2,466
    rahulvishwakarma
    16th March 2020, 09:38 Go to last post

  27. How to have multiple QCompleters in one QLineEdit

    Started by leinad, 13th March 2020 12:43
    • Replies: 7
    • Views: 3,083
    d_stranz
    16th March 2020, 00:17 Go to last post

  28. QGraphicsScene background glitches

    Started by gfgit, 14th March 2020 14:48
    drawbackground, qgraphicsscene, qgraphicsview
    • Replies: 2
    • Views: 2,951
    gfgit
    14th March 2020, 16:34 Go to last post

  29. QGraphicsScene background glitches

    Started by gfgit, 14th March 2020 13:14
    • Replies: 0
    • Views: 899
    gfgit
    14th March 2020, 13:14 Go to last post

  30. QT c++ OPENGL

    Started by cmartin, 11th March 2020 14:56
    • Replies: 3
    • Views: 2,192
    d_stranz
    12th March 2020, 19:30 Go to last post
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