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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What causes blurry fonts in Qt applications (in XFCE desktop)?

I am using Xubuntu 12.04 with XFCE 4.8 Fonts in Qt-based apps like VLC look blurry in my user profile, as if anti-aliasing was turned off. Chrome has the same problem. The problem is not system-wide ...
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1answer
81 views

Can I directly use the Qt and GTK+ libraries I saw in the Update Manager?

I installed Ubuntu 12.04 on my laptop today, and when I was updating it using the Update Manager, I saw it downloading qt and gtk libraries. Does that mean I can use them directly? Or will I need to ...
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3answers
6k views

Where does apt-get install libqt4?

I've been searching for literally hours and I cannot figure out where for the life of me libqt4 is installed by apt-get. I installed: libqt4-dev libqt4-core libqt4-gui libqt4-xml libqt4-opengl ...
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2answers
204 views

I wrote a Python/QT app that downloads files. How can I stop it from 'greying out' after few seconds?

Here's the gist. The application is still running and the progress bar will still move, but the window will grey out and if I click the X to close it, a popup shows up and says "The window X is not ...
6
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1answer
1k views

How to change QT (KDE) application icons for gnome?

I'm running gnome3 on Ubuntu 12.04 and my dolphin looks like this: I really don't like these oxygen themed icons and want to use the Faenza icons. I tried backing up the oxygen icons and ...
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1answer
730 views

Problem with package dependencies in Qt4 library

I'm having a problem with dependencies in the qt4 library, and I'm not able to install anything via the apt-get command. apt-get update gives me a normal output. apt-get clean and apt-get autoclean ...
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1answer
343 views

No widget drag/drop in Qt Creator after Blender-startup

My problem is that every time I start Blender 2.63 in 12.04 (64-bit), I am not able to drag and drop widgets in Qt Creator anymore, even after closing Blender again. I have tried restarting Qt, ...
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2answers
1k views

g++ cannot find include files (qt3)

allan@allan-VirtualBox:~/blackjack_for_the_hopelessly_luckless$ make g++ -c -pipe -g -Wall -W -O2 -D_REENTRANT -DQT_NO_DEBUG -DQT_THREAD_SUPPORT -DQT_SHARED -DQT_TABLET_SUPPORT ...
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1answer
168 views

How to import Qt app into Quickly on 10.04?

How to import my Qt app into Quickly? The goal of this is to package my Qt app using Quickly.
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1answer
81 views

python3 can participate to Ubuntu app showdown?

my application works only with python3 and it use QT, can I participate to Ubuntu Application showdown? Right now I don't know how to create the package... Quickly doesn't work with python3
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2answers
349 views

Is this Ubuntu One DBus signal connection code correct?

This is my first time using DBus so I'm not entirely sure if I'm going about this the right way. I'm attempting to connect the the Ubuntu One DBus service and obtain login credentials for my app, ...
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2answers
1k views

How do I get QSystemTrayIcon to show up in Gnome 3?

I can get a QSystemTrayIcon to show up in Unity by installing the sni-qt package which acts as a broker between the application and an application indicator for the program. However, running the ...
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3answers
568 views

Which framework/toolkit for modern unity applications?

I want to code some applications for ubuntu (no other platforms), but which gui-toolkit would be the "official" one... in the past (gnome) gtk+ was my choice, but afaik unity uses Nux. I don't want to ...
2
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1answer
124 views

Is there a way to use the “primary toolbar” with QT or Java?

I am developping a software in order to compete in the Ubuntu App Contest, but I am having a problem. I started with quickly and glade, but since I am not very familiar with python, and since now the ...
2
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1answer
467 views

Qt menus disappear in Unity

I have a fresh install of Ubuntu 12.04 and updated the whole system last week. (just to clarify that I'm up to date) When I'm using qt applications like QtCreator, Opera, Dolphin and so on, their ...
4
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1answer
358 views

How to run an application in /opt?

I want to know how one can run his application in /opt and installed in /opt. I want it for the ubuntu app showdown http://developer.ubuntu.com/showdown/ I will be using qt with qt creator and c++; ...
4
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1answer
187 views

Getting list of installed apps (NOT packages)

How can I get list of installed apps (based at files in /usr/share/applications/) without writing own parser? I need just app name, path to app icon and path to launch app. I'm using C++ with Qt ...
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1answer
482 views

How to change the icon for Qt application?

How can I change application icon (launcher icon) for my Qt-application? Now it looks like a question mark and I want to change it.
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1answer
504 views

How do I install libqt4.7.4?

I need to use libqt4.7.4 (or .3) on the latest build of Ubuntu. Is there any easy way to revert to that version. Will it break anything? sudo apt-get install qt4-dev-tools=4.7.4 errors with 'Version ...
9
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2answers
444 views

How to use gettext to make QML files translatable

I'd like to write a QtQuick app based on Python (PySide) and QML. I know Qt apps have got their own translation technology, but I would like to stick to gettext for this one. I'd like to know if it's ...
31
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1answer
17k views

Should I use PyQt or PySide for a new Qt project?

Recently I've been involved in conversations about creating a Quickly template for a Qt and QtQuick Ubuntu app. The idea is to make it as easy to develop Qt apps from concept to package as it is right ...
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1answer
937 views

QT Installation Missing compiler

I have used Linux in the past but not for a long time and so I am a bit rusty so apologise if I am asking something obvious or in the wrong stackexchange site. There are a few things with regards to ...
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1answer
406 views

How can I remove icons from menus of QT apps?

VLC, Skype, Clementine and Virtualbox (the four QT apps I use) all have icons in their menus. The rest of my system's menus are all iconless, How I like them. I'm using 12.04.
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0answers
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Skype and Mathematica cause lots of trouble after upgrade to 12.04 [closed]

After upgrading to 12.04, Skype and Mathematica randomly disappear from the unity launcher so that they are unusable anymore. Calling them again from the dashboard does not bring it back, since this ...
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1answer
1k views

How to create a new Quickly application template?

Cannot find the answer elsewhere, I'm asking for a documentation of the process to create a new template for quickly. I'm interested in writing a pyside (python + qt4) template like the pygtk one. ...
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2answers
992 views

error while loading shared libraries: libQtSql.so.4: cannot open shared object file: No such file or directory

A similar issue is found elsewhere but only with 32bit programs. I have this problem when trying to run clementine - which is 64bit, i checked the binary i have - and ubuntu-one-control-panel-qt I'm ...
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1answer
236 views

Unable to install Qt XUBUTNU 12.04 fresh install

I've Qt SDK which is an offline installer. According to the instructions given for installation, first I have to chmod u+x Qt_SDK_Offline.run then ./Qt_SDK_Offline.run But when I do ...
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2answers
1k views

QT 4 packages create dependency problems

I am using Ubuntu 12.04. I recently performed an upgrade for my system. Now, when I try to install a package (aptitude for example), I see this: Reading package lists... Done Building dependency tree ...
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0answers
1k views

Qt Apps problems in Ubuntu 12.04

I have a few Qt applications on my Ubuntu 12.04 Laptop, and not all of these seem to be running as desired. The applications in question are Tomahawk, Clementine, Rstudio and Speedcrunch. Not all ...
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3answers
544 views

qmake error when trying to build qwbfs

I'm trying to install qwbfs application but when i enter the command : make i get this: tools.c:8:25: fatal error: openssl/md5.h: No such file or directory compilation terminated. make[1]: *** ...
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0answers
931 views

When I install Xubuntu 12.04, the Qt-applications font is horrible

What is the proper way to set up fonts in Skype, VLC, and so on?
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1answer
1k views

Icon theme doesn't affect some Qt-applications [duplicate]

I changed the icon theme in Ubuntu 12.04, but it doesn't affect Qt-applications. They have the default theme. For KDE applications the icon theme can be changed with the systemsettings package. This, ...
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1answer
514 views

Creating a GTK theme, but Qt and Java apps are not affected, and title bar button layout is ugly

I'm playing with a gtk2 / gtk3 theme which I use in the Mate desktop. Everything is looking well, even gtk3 apps, but I still have 3 important issues: Java apps ignore the theme QT apps ignore the ...
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2answers
11k views

How to install qt 4.8 from repository?

How to install qt 4.8 and QtCreator from repository ?
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2answers
1k views

How to make qt applications to choose Regular style font by-Default?

In modern Ubuntu versions (11.10, 12.04) there is an additional style for Ubuntu font called 'Medium' it's slightly thicker than a 'Regular' style user by default. The problem is that all QT apps ...
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1answer
143 views

Unity, C++, opening a Unity folder out of a QT-application

I wrote an QT-application, which shows a "QTreeWidget" of a certain directory and its sub-directories. Now I would like to make unity open a folder e.g. /home/Username/, by clicking one of the ...
2
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1answer
675 views

The new QT GUI for existing applications will be integrated with the Ayatana overlay scrollbars?

With the last updates in Ubuntu 12.04 at least two new GUI in QT for existing applications are landed: Ubuntu One Control Panel, and Checkbox (the system testing tool). These new GUIs are pretty good, ...
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2answers
4k views

How to add shortcut to unity launcher programmatically?

I'm developing a program in Qt that will help users to manage (create, edit and delete) their quicklists in Unity launcher. I got to a point where I created .desktop file and I don't know how to ...
0
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1answer
177 views

How can a Qt application be notified that the user's session is ending and provide it with opportunity to save its state before being terminated?

I am writing a Qt application and have run into the following problem: when the user logs out or attempts to shut down the machine, the application is instantly terminated without providing it any ...
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0answers
236 views

How do I install QtSdk for Harmattan target development? [closed]

I want to make development targeting Harmattan (aka Meego / Meamo6 / N9). My first try was to install QtSdk directly from Nokia installer. This works. But I would rather install thinks using ...
2
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1answer
722 views

Problem: qt-gtk-engine

I need to install this package in my Ubuntu 11.10 Oneric Ocelot. But, as I understand - this is obsolete now. But how can I install GTK+ engine for Qt?
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1answer
2k views

qt4-x11 4.4.7.0 in Lucid

Can this version of QT4 be successfully be installed on Lucid. So many things I try to install depend on this. Error: Dependency is not satisfiable: libqtcore4 (>= 4:4.7.0~beta1) Calibre PPA-Lucid ...
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0answers
196 views

unmet dependencies: libqt4-dev qt4-qmake [duplicate]

Possible Duplicate: How do I resolve unmet dependencies? Is there anything I can do about this ? It seems that synaptic has updated qt4-qmake to version 4.7.2 but all the dependent ...
0
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1answer
684 views

What package do I install to use Oxygen in Qt4?

When you install some qt apps in ubuntu like smplayer and lyx, you can change their appearance eiher with their preferences menu or with the qt-config utility. You can choose between several themes ...
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1answer
2k views

error while installling qt mobility tool kit

i am installing qt mobility tool kit but it shows an error message.how to fix it 1.2.0/src/multimedia' make[2]: Warning: File Makefile' has modification time 1.1e+04 s in the future g++ -c -pipe -g ...
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1answer
1k views

How do I enable global menu for Qt applications?

Is there a way to enable the global menu for Qt applications on Unity? By default they do not use it.
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2answers
910 views

Minimal package to install Qt Assistant

We are using Qt Assistant as our help system for a custom application that will run on Ubuntu. In building the .deb package, I need to include a "Requires:" value that makes my package dependent on ...
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6answers
9k views

GTK+ in Kubuntu apps look bad

I have installed Evolution email client on Kubuntu 11.10 and it's not so cute as expected. Eclipse also looks bad. I have the GTK+ Appearance plugin in KDE System Settings and already tried QTCurve ...
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4answers
6k views

What's the difference between GTK and QT?

Please bear with me as I'm a newcomer to Linux. I've been writing GUI programs in REALbasic on a Mac for several years. I'm trying to learn Python and I want to write GUI apps for Linux (primarily ...
4
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2answers
491 views

How to make a .deb installer for PySide (Qt) project

I have made a small software using PySide, a GUI library for python using Qt. I have successfully built it into an executable for Ubuntu. ...