Qt is an application framework originally created by Trolltech and currently managed by Digia. The KDE desktop uses the Qt framework for its applications.

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After compiling QT 5 how do I to update my system? With update-alternatives?

I'm on Ubuntu 12.04. I followed the instructions in this guide in order to compile QT5. Everything compiled fine. My problem now is that my QT related programs are still pointing to an older ...
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1answer
129 views

Backporting Qt 4.8.4: Circular dependencies of qtchooser

I'm trying to backport the latest Qt packages (4.8.4) to Precise, using Launchpad. This worked well for the qt4-x11 packages but now I also need qtchooser which does not exist in 12.04. Trying to ...
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1answer
7k views

Qt (headers and libraries) not found

I'm trying to install a program and i used the following command: ./configure But, an error occurred: checking for Qt... configure: error: Qt (>= Qt 3.2) (headers and libraries) not found. ...
1
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1answer
530 views

QtCreator crashes on registering namespace

I just installed Ubuntu 13.10 (Desktop) x64 on my computer and wanted to install Qt5 with QtCreator. So, I downloaded it from: http://qt-project.org/downloads ...
0
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1answer
270 views

Error while compiling Qt with Phonon

I have this problem. I have a code line: [ **QT += declarative network phonon** ] Which says: [ ***:-1: error: Unknown module(s) in QT: phonon*** ] after compiling. I have tried to ...
0
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1answer
385 views

Qt4 files : file or directory not found

I installed qt4 and now can see its files in /usr/include/qt4 But when I am compiling the "C" code, it gave error that QWidget: file or directory not found Although this QWidget is present in ...
1
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0answers
21 views

How to add default icon in Qt widget application [duplicate]

I am trying to develop a simple qt app, I would like icon for the toolbar buttons, How can I standard icons for these toolbar buttons, new,open,close etc
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2answers
1k views

How to put MainView into maximized

[using ubuntu sdk to write an application for the desktop] Is there a way to change the window state of the MainView? MainView { ... width: units.gu(100) height: units.gu(75) Page ...
7
votes
1answer
9k views

What package do I need to build a Qt 5 & CMake application?

I'm trying to build sdrangelove, which wants Qt 5 and uses CMake for its build system, on Ubuntu 13.10. What package do I need to install to give it the file it's asking for here? There are a lot of ...
7
votes
1answer
6k views

How to upgrade QT Creator?

I just installed QT Creator 2.4.1 (Based on QT 4.8.0 64bit) from Ubuntu Software Center and noticed that it was not the latest version. How do I upgrade it from terminal? My Ubuntu is 12.0.4LTS. ...
3
votes
1answer
2k views

Cannot mix incompatible Qt library (version 0x40804) with this library (version 0x40801) Aborted core dumped

... Cannot mix incompatible Qt library (version 0x40804) with this library (version 0x40801) Aborted core dumped The Problem occurs with 64-Bit Ubuntu 13.04 when starting k3b, ebook-viewer ..., ...
1
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1answer
571 views

13.10 qtcreateor 271 wont work

Just installed ubuntu 13.10 x86 with all updates. I then installed qt4 libraries and qt creator 271: sudo apt-get install build-essentials sudo apt-get install libqt4-dev sudi apt-get install ...
6
votes
1answer
2k views

Are Qt Quick Controls available on Ubuntu 13.10?

I was looking to do UI development in QML, and I really want it to look native. I found the QtQuick.Controls (http://qt-project.org/doc/qt-5.1/qtquickcontrols/qtquickcontrols-index.html), but when I ...
0
votes
1answer
101 views

Qt Creator and UbuntuSDK

Please, help me! I'm install Ubuntu SDK with Qt Creator, how it was wrote here click But when I launch Qt Creator there aren't Ubuntu's projects (Projects > Ubuntu > Simple Touch UI)... only default ...
0
votes
1answer
172 views

Is it possible to install qt4 without installing qt4-doc?

I am compiling a software from source (bibletime 2.9.2) and among the requirements is Qt4.5+. I found a way to do that by installing all the required packages at a tutorial at ...
1
vote
2answers
335 views

Where are Tutorials and is it QML or QT

Hi there my question is that where can i find any good QML tutorials for Ubuntu phone app developing (I've seen the developer.ubuntu.com site but still thats not enough) and witch of the 2 languages ...
0
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1answer
817 views

Qt compatibility with GTK themes (Qbittorrent)?

How can I make my Qbittorrent look somewhat more like my GTK theme or just normal without switching/changing my current theme? As usual I tried something and this came out: How it looks without ...
4
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0answers
421 views

QtCreator creates unwanted windows [closed]

This issue occurs on raring with the build "qtcreator 2.8.1-0ubuntu1~raring1~test1", the latest from the software center. It works fine in general, but if you click on "Welcome" and than on "Develop", ...
2
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1answer
107 views

Does Ubuntu SDK include entire Qt toolchain?

Does the Ubuntu SDK include all of Qt, or only a subset? If I have existing (non-UI) components/libraries developed under Qt, can I use them in a Ubuntu/Unity/Ubuntu Touch application? Generally, ...
0
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1answer
125 views

Can someone help me port a gameboy emulator to ubuntu touch?

How can I translate a Qt (c++) gameboy emulator to a qml ubuntu touch emulator? Any suggestions would be much appreciated...
2
votes
0answers
676 views

Unix Signal handling in Qt Embedded Linux [closed]

I have an application for the USB interface in Qt (Embedded Linux). When a pen-drive is inserted, the kernel sends a signal for that and I want to recognize that signal and I want my Qt application ...
3
votes
2answers
391 views

How To Use i18n.tr in Ubuntu Touch Projects

I have been using i18n.tr for a while in my Ubuntu-Touch projects. I know what this function is about but I don't know how to add a translation to my project. Where do I have to place my translation ...
0
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1answer
97 views

Qt Creator reverted back to some previous version

I've had Qt Creator on my machine for quite a while, and after adding the necessary PPAs, I could use it for Ubuntu Touch, the Ubuntu SDK being installed and all. Yesterday, i noticed that Qt had been ...
-1
votes
1answer
448 views

Why some function definitions appears in italic font in qt creator?

I am using qt creator to work on open source and I am not able to understand some functions name are in italic fonts while declared it in it's class, whereas all other function are in normal font in ...
0
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2answers
3k views

Ubuntu, installing Qt 5.1.1

I just installed windows 8, Ubuntu twice because it failed the first time somehow (couldn't start from grub). However, now everything works fine. The only exception is that I cannot install Qt ...
0
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2answers
1k views

QT code for U Touch returns `qmlscene: cannot find qt installation of ''`

I'm trying to start developing for Ubuntu and Ubuntu phone, but I get an error: qmlscene: cannot find qt installation of '' when I attempt to run my application in Ubuntu from the command line. I'm ...
9
votes
1answer
774 views

What does the takeover of Nokia mean for the Ubuntu SDK?

Well, the title says it all: What does the takeover of Nokia by Microsoft mean for the Ubuntu SDK, as the Ubuntu SDK relies on Qt which is (was?) a Nokia project?
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0answers
515 views

Qt 5.1.1 installation problem

I am new to ubuntu and using 12.04 LTS. I tried to install Qt5.1.1 without software manager. I downloaded the qt-linux-opensource-5.1.1-x86-offline.run file and ran it. It ran smoothly and got a ...
4
votes
2answers
5k views

Can I sell my PyQt4-app without having a PyQt license?

I would like to sell a Python application that uses PyQt4. The commercial licenses for Qt PyQt cost thousands of Euros together. Do I need to buy a commercial license? Consider this from a ...
0
votes
1answer
140 views

Qt sdk for ubuntu development creating 3 Qml2puppet upon design mode

When I create a project in Qt Creator 2.7.1 on Ubuntu 13.04 64bit the project is all fine. But when I enter the design mode on the left side menu, then there are 3 instances of Qml2puppet appearing on ...
0
votes
1answer
276 views

ibus 1.4.1 doesn't work with Opera 12

Environment: Ubuntu 12.04 Opera 12 ibus 1.4.1 I've installed ibus-qt and add the two lines below in /usr/bin/opera, but it makes no difference: QT_IM_MODULE=xim XMODIFIERS="@im=ibus" As some say ...
1
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1answer
376 views

Skype [4.2.0.11] - black Video on KDE - 13.04 32bit

I have this strange issue with skype: using Unity and other DE ( lxde/E17 ) everything works fine using KDE/BE::Shell I have black screen in the video/webcam box ( also in option in video tab) I ...
0
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1answer
251 views

no ubuntu touch templates in qt 5.0.2

I have been using qt for some time now (lastly Qt 4.8), writing some desktop apps. Now I wanted to try doing something on ubuntu touch and so I installed the Ubuntu SDK. What I did was uninstall my ...
1
vote
1answer
2k views

Missing compiler error in QtCreator and Qt5.1.0 on Lubuntu 13.04

I can't compile any program in QtCreator on Lubuntu 13.04. I have this error: QtCreator needs a compiler set up to build. Configure a compiler in the kit options First of all, I installed from ...
3
votes
1answer
2k views

Qt build in Ubuntu 12.04

I have installed Qt Creator 2.7.2 'Based on Qt 5 1.0 (32 bit)'. First I have tried its example analogclock, but its building does not find a command g++, while I have installed the gcc compiler. See ...
0
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1answer
148 views

Gtk skip_taskbar_hint (seen in Glade-ui-Designer) equivalent in Qt

With Glade Designer that lets you set up Gtk-Ui's you can check the option that windows are not shown in the launcher. If I take a look at the ui-file generated by Glade, it says <property ...
0
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1answer
237 views

QT Linguist phrasebook from .TS file

I'm working on a Translation with QT Linguist. Several words have multiple entries so I would like to Reuse the words already translated to "batch translate" the rest of the files. Batch Translation ...
2
votes
1answer
111 views

db.changeVersion doesn't work as expected

I'm trying to upgrade a DB in an app. I use QtQuick.LocalStorage 2.0. When I call db.changeVersion it works, but db.version doesn't change until app restarts. db.changeVersion(db.version, "2", ...
0
votes
1answer
98 views

Change tab from code using ubuntu SDK

How to change tab using code in QML in Ubuntu SDK? The answer is: If tabs are defined as follows: Tabs { id: tabs ..... } then using this: tabs.selectedTabIndex = 0 will get ...
2
votes
2answers
620 views

Qt5 with Qt 4.7 on Ubuntu 13.04. How to install it both without conflicts?

I'm using Qt5 and need Qt 4.7 now (for embedded device). Is it possible to install it additionally on Ubuntu 13.04?
2
votes
1answer
3k views

QtQuick not found (Lubuntu)

On a fresh Lubuntu 13.04 installation, I installed Qt5 from the official ubuntu repositories. But this installation of Qt5 can't find the QtQuick module. What am I missing? qmlscene test.qml ...
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votes
1answer
91 views

Unity 2d for Qt [closed]

I Need the source packages of Unity 2d to rebuild and run on Qt , the problem is that I'm using Qt on windows right now. and I have no idea how download the Unity 2d on windows 7.
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vote
1answer
2k views

build a project with qmake-qt4

I'm new user of Ubuntu, so excuse me if my question is very obvious. I have a 32-bit Ubuntu 11.10 installed in VirtualBox, and I want to build a project using qmake-qt4, the problem is that I don't ...
2
votes
0answers
566 views

Amarok doesn't start after qt4-related ubuntu updates (from raring-updates)

Last Monday I updated my Ubuntu 13.04 and there were a bunch of qt4 related updates. (I don't know how to have a list of the updated packages which isn't taking a screenshot of Ubuntu Software Center ...
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vote
1answer
754 views

Compiling software generated with an old version of Qt Designer

I'm trying to compile and install K3dsurf following the instructions in the "Readme", which says: tar -xvzf k3dsurf-0.6.2.tar.gz; cd k3dsurf; qmake; make; ./bin/k3dsurf & ; The problem is that ...
2
votes
1answer
1k views

Problem with QtCreator after update

I installed the ubuntu-sdk 2 days back on my machine (12.04) and the Qt version that is installed is 5.0.2. Everything was working perfectly, but today there were some updates from the ...
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vote
1answer
58 views

How can I create charm on one node

Firstly I generation nodejs file on the node without charm then my boss said we need charm for generation. I need in this charm QT5, NODEjs, Berkeley db, g++ with gcc but I don't know how create ...
0
votes
1answer
5k views

How to install SIP+PyQt with apt-get + pip + virtualenv?

[I originally posted this question, under a different title, in StackOverflow (here), but later I realized that my problem is very specific to apt-get, hence I am re-posting it here. Sorry for the ...
1
vote
2answers
4k views

“Failed to load platform plugin ”xcb“ ” while launching qt5 app on linux without qt installed

I wrote application for linux which uses QT5. But when I am trying to launch it on the linux without QT SDK installed, the output in console is: Failed to load platform plugin "xcb". Available ...
0
votes
1answer
168 views

How to minimize PyBitmessage to the system tray?

I recently installed PyBitMessage, and now I can't get it to minimize to the system tray. If I click the red X, it just exits (unlike Transmission, which can be configured to "survive" being closed - ...