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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8
votes
1answer
336 views

Howto create a new C++ based Ubuntu touch project in Ubuntu SDK?

There is no option to start a C++ and QML based project in Ubuntu SDK. It only offers to create a QML project with no C++ codes. If I try to add C++ classes to the QML project, I get this error: ...
2
votes
4answers
120 views

How can I build and install a Qt project/.pro?

I would like to install sqlite database browser from sourceforge. I downloaded the file and unzipped it with tar -xvf sqlitebrowser_200_b1_src.tar.gz Now it's a directory in my downloads with this ...
2
votes
0answers
268 views

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 ...
0
votes
1answer
119 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 ...
-1
votes
1answer
4k 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
vote
0answers
80 views

Setup compilation with Qt, Boost and muParser

I am a new comer on the Ubuntu worldwide and I have to complete a project. I have developed a plugin for LibreCAD with Windows. I am now working with Ubuntu 13.10 and I would like to compile LibreCAD ...
1
vote
1answer
430 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
votes
1answer
172 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
votes
1answer
255 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
vote
0answers
19 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
1
vote
2answers
585 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 ...
4
votes
1answer
6k 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 ...
5
votes
1answer
4k 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
vote
1answer
554 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
90 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
133 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
265 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
votes
1answer
463 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
votes
0answers
403 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
votes
1answer
93 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
votes
1answer
103 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
494 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 ...
2
votes
2answers
313 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
votes
1answer
88 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
314 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
votes
2answers
2k 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
votes
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 ...
1
vote
0answers
106 views

Add custom button with Gtk or Qt on ubuntu login screen

i'm currently working on custom ubuntu distro for local use only. I need to create a custom button on ubuntu login screen. I don't know where to start, how to edit ubuntu login screen? the button, for ...
9
votes
1answer
727 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?
2
votes
0answers
462 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
3k 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 ...
1
vote
0answers
61 views

Behavior on listView

I need to scroll an element of a ListView to bottom when user clicks on it, with an animation. I want to use Behavior for the animation, but I do something wrong. I have no problem with the scroll ...
0
votes
1answer
129 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
233 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
vote
1answer
352 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
votes
1answer
233 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
1k 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 ...
2
votes
1answer
1k 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 ...
1
vote
0answers
171 views

qt5 not working

I'm trying to get Qt5 working on Ubuntu 12.04. I downloaded the 32-bit installer from http://qt-project.org/downloads and basically just let it install everything in my home folder. I had to add ...
0
votes
1answer
125 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
votes
1answer
197 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
99 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
76 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
439 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
2k 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 ...
-1
votes
1answer
88 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.
1
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
547 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 ...