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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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    • Threads: 624
    • Posts: 2,371
  1. Go to first new post LAN Peer-Peer Chating

    Hi I want to make Lan peer-peer chat appliaction. I tried Network chat application.But its boardcast messages . Can Anybody have any idea about...

    Posted By moh.gup@gmail.com
    • Replies: 0
    • Views: 1
    Today 13:31 Go to last post
  2. Partial results with mappedReduced

    Hi, I just started with qtConcurrent and I am already fond of it. Great job ;-) However, there is one thing I could not achieve yet, and maybe...

    Posted By 0x4e84
    mappedreduced, partial results, static
    • Replies: 2
    • Views: 81
    Today 13:26 Go to last post
  3. Question Do Qt Style Sheets support List-style-image?

    I want to customize the image of a QToolButton By Using a QSS(Qt Style sheet) file. However,the button's normal , hovered , clicked image are just...

    Posted By daiheitan
    image, list, sheet, style
    • Replies: 0
    • Views: 1
    Today 13:05 Go to last post
  4. CloseEvent of QDockWidget

    Hello, With the designer I created a MainWindow with a few DockWidgets. The widget of the DockWidget I promoted to my custom widget. Works nice. ...

    Posted By mstegehu
    • Replies: 1
    • Views: 11
    Today 11:47 Go to last post
  5. Problem while trying to copy an XML file from one location to another in Linux

    Hi all, I am facing one problem while copying an XML file from one place to another place in my filesystem.I am using following code for...

    Posted By payal
    • Replies: 2
    • Views: 16
    Today 11:44 Go to last post
  6. Building VLC Player on QT C++ 4.6.2 windows 7

    i have source http://download.videolan.org/pub/videolan/vlc/1.0.5/vlc-1.0.5.tar.bz2 but i cant build it in QT , can you config it help me ? this is...

    Posted By nhs_0702
    • Replies: 1
    • Views: 12
    Today 11:36 Go to last post
  7. Translucent the toolbar in the uppler level of QWidget::winId() - how?

    Hi : I'm trying a camera preview tool under linux. It got puzzled when I want to tranlucent the toolbar widget. I used the QLabel::winId()...

    Posted By Jason
    • Replies: 7
    • Views: 98
    Today 11:27 Go to last post
  8. Debugging in MSVS leaves zombie console window

    Some time ago Qt has start to leave console window if I stop debug process. I find console app in Task manager in App tab, but there's no sign of...

    Posted By T4ng10r
    console, debug, visual studio, zombie
    • Replies: 3
    • Views: 40
    Today 10:59 Go to last post
  9. Crash on deletion of QScriptEngine object

    Hi, on start of my app I create a new QScriptEngine object, use it for a lot of stuff and destroy it before quitting the app. Unfortunately the...

    Posted By The_Fallen
    • Replies: 4
    • Views: 29
    Today 10:27 Go to last post
  10. why on Linux ,doesn't work?

    Good afternoon! I'm having a problem on Linux. My computer has got Windows Xp system. I have done an application where I use a transparent button...

    Posted By maider
    • Replies: 5
    • Views: 62
    Today 09:57 Go to last post
  11. Add Application Icon without PRO file?

    Hi, My Windows and Linux application doesn't use a QT project file to compile. Is it still possible to link a resource file ? Maybe I need...

    Posted By grantbj74
    • Replies: 3
    • Views: 36
    Today 09:42 Go to last post
  12. Problems with QPainter

    Hi to all, I'm writing a config dialog that I exec from my main application. With the dialog the user can choose the colors that will be used to...

    Posted By franco.amato
    • Replies: 12
    • Views: 161
    Today 09:39 Go to last post
  13. How to use input method with QLineEdit in HP-UX (Qt4.5)

    Hi I want to invoke input method(chinese input method) on HP-UX(use Alt right to space button), it doesn't work(that is the input method box does...

    Posted By justalittle
    hp-ux, input method
    • Replies: 0
    • Views: 12
    Today 09:22 Go to last post
  14. Differences between SUBDIRS+=*.pro and include(*.pro) statement

    Hi, What is the differences between SUBDIRS+=*.pro and include(*.pro) statement in qmake? I'm trying to pass a DEFINES value into the SUBDIRS...

    Posted By sheeeng
    • Replies: 2
    • Views: 26
    Today 09:19 Go to last post
  15. [Help me] add new record into Sqlite using QSqlRelationalModel & QTableView

    Hi, all. I'm a rookie in Qt and I have an problem when using QSqlRelationalModel and edit data on QTableView I have two table : tableSong :...

    Posted By nvthao.cntt
    edit data on qtableview, qsqlrelationalmodel
    • Replies: 0
    • Views: 11
    Today 08:41 Go to last post
  16. Use QT to make Karaoke Player, help me!

    I want to use QT to make a Karaoke Player to run on Linux PC. Somebody help me the idea to do this.

    Posted By Kevin Hoang
    • Replies: 5
    • Views: 82
    Today 08:31 Go to last post
  17. Use QT to set password for SQLITE database. help...!

    I want to protect the tables on SQLITE database. How to set password for SQLITE Database by using QT?

    Posted By Kevin Hoang
    sqlite password
    • Replies: 1
    • Views: 18
    Today 08:28 Go to last post
  18. QUdpSocket problem MacOSX

    Hello, Im running into a bit of a problem using the UdpSocket class. My application currently reads data via a UdpSocket object similar to the...

    Posted By kangy
    • Replies: 1
    • Views: 32
    Today 08:06 Go to last post
  19. Problem using style sheet in hierarchy

    Hi, I have a problem using style sheet can any one help me please. If we have widget which is child of some other widget then...

    Posted By narendra
    style sheet.
    • Replies: 6
    • Views: 60
    Today 07:49 Go to last post
  20. Item Delegate and Signal/Slot

    I have an ItemDelegate for a TreeView that contains multiple widgets and displays a different editor for each node type. I also have a docking window...

    Posted By LynneV
    item delegate signal slot
    • Replies: 3
    • Views: 33
    Today 07:20 Go to last post
  21. Question Problems about Dynamic Language Switching

    hi to all! I'd like to do dynamic language switching in my application,but there is a problem. there are three language in my project:english,...

    Posted By to_guliang
    • Replies: 2
    • Views: 47
    Today 01:17 Go to last post
  22. Sending mail - problem with authentication

    Hello. I wanted to add an option to my application, which lets user to send e-mail to my mailbox (my mail adress is set in the source code). I found...

    Posted By kremuwa
    • Replies: 19
    • Views: 231
    Today 00:46 Go to last post
  23. Exclamation Dialog remains in background.

    Hi I have created an application(on linux) in which i invoke the "native file dialog". On clicking the "line edit " on the file dialog a virtual...

    Posted By vjsharma_30
    • Replies: 3
    • Views: 32
    Today 00:16 Go to last post
  24. Question QSqlite, multiple connections to in memory database.

    Hi. I'd like to ask you people is there any possibility to create more than one concurrent connection to the SQLite database which is located in...

    Posted By adzajac
    concurent, sql, sqlite, threads
    • Replies: 9
    • Views: 73
    Yesterday 23:35 Go to last post
  25. qmake problem with application icon in windows

    I want to add icon to my application in windows XP, I am using QT4.6.2 and mingwin that comes with it. I have a folder called "res" in the same...

    Posted By dashesy
    rc_file windres icon
    • Replies: 3
    • Views: 44
    Yesterday 22:01 Go to last post
  26. Reload widget contents

    Hello. I am having trouble finding a way to update a widget. I'm modifying the fridge magnets example that comes with the Qt SDK. Basically what I...

    Posted By tiredtyrant
    update, widget
    • Replies: 13
    • Views: 212
    Yesterday 20:39 Go to last post
  27. QMYSQL driver not loaded

    Hi to all, yes I've read the previous posts about it but nothing match my problem. I've compiled the MySQL driver following the Qt guide "SQL...

    Posted By cydside
    • Replies: 3
    • Views: 42
    Yesterday 19:33 Go to last post
  28. Persistent combobox entries.

    I have a file browse button which displays a QFileDialog. On selecting a file I add the path to an editable combobox. What I want is a way to make...

    Posted By spsingh
    • Replies: 2
    • Views: 29
    Yesterday 18:40 Go to last post
  29. Help with QDockWidget

    I'm sure this question has been answered somewhere in this forum but I can't seem to find exactly what I need so I'm going to ask you guys for a...

    Posted By mindbender
    • Replies: 6
    • Views: 54
    Yesterday 17:13 Go to last post
  30. QTextDocument font size wildly different when printing on Windows vs OS X

    I've had a search but not seen anything mentioning this. I'm trying to print a QTextDocument that I've created using HTML tags (I've not...

    Posted By NicholasSmith
    • Replies: 3
    • Views: 25
    Yesterday 17:07 Go to last post

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