Qt is an application and UI framework. The K Desktop Environment is based on QT.

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2
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2answers
79 views

How do I install this script as root in terminal: ./qt-opensource-linux-x64-5.3.2.run?

I need to install qt5 on my system and I can only run it as the normal user. When I try to run it as the "super user" I get this error: root ~ # ./qt-opensource-linux-x64-5.3.2.run No protocol ...
1
vote
1answer
17 views

What are the files in /tmp that start with “qipc”?

There are empty files like this in my /tmp directory: qipc_sharedmemory_soliddiskinfomemac5ffa537fd8798875c98e190df289da7e047c05 ...
0
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0answers
21 views

Is it possible to name a QThread? [migrated]

I have a Linux Qt application that creates some QThreads. I know that when you create a thread it inherits the parent name and I can see it when I use htop or ps ax -L. Is it possible to name those ...
2
votes
1answer
33 views

Qt program not invoked by cron

I had a simple Qt program, when running, it shows a simple window with a countdown timer. If you might be interested in the code, please see here. I had crontab line * * * * * ...
3
votes
1answer
143 views

Start QT Application on bootup on an Embedded Linux Device (Beaglebone Black)

Below is picture of the display on bootup. Expected display is overwritten by Angstrom screen Expected Display Application is been started as a service. Below is the content of the service file ...
2
votes
1answer
55 views

ld cannot find -lQt5Multimedia

I'm trying to build BBQScreen for Linux. During the make process, I get the following error: g++ -m64 -o Linux/BBQScreenClient2 debug/main.o debug/mainwindow.o debug/screenform.o ...
0
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0answers
42 views

Unable to create gui in Qt creator

Till now I was creating GUI on windows using c++ on visual studio, now I decided to move on linux. So I install Qt creator from here . Now I follow a video tutorial for creating gui application with ...
3
votes
1answer
51 views

Qt Application Disobeying Xmodmap

A long while ago, I created a ~/.Xmodmap reversing the 4 and 5 to create "natural scrolling": pointer = 1 2 3 5 4 7 6 8 9 10 11 12 I source .Xmodmap in .xinitrc in the standard fashion (xmodmap ...
1
vote
1answer
265 views

Ubuntu Qmake is not an executable

after installing new version of QtCreator in Ubuntu and tux-world@alachiq:~ > sudo apt-get install qt5-qmake build-essential g++ gcc Reading package lists... Done Building dependency tree ...
0
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0answers
30 views

Plasmoid - connect KDE signal with QML UI

I'm working on this small KDE plasmoid and I really like the QtQuick/QML, but now I have this requirement. I need to do an action when a window is shown or closed in KDE. KDE API have signals for ...
1
vote
1answer
298 views

chrome ui issues with mint 17

I did install Mint 17 (Qiana) today and I seem to have problems with the window title bars such as chromium title bar. I have limited knowledge of tool kits such as qt or gtk. From what I read so ...
0
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0answers
131 views

qtcreator debugger shows <unavailable synchronous data> when trying to view the contents of std::map

I'm running QtCreator 4.8.0 on a Ubuntu 12.04 (64bit) machine. apt-cache policy qtcreator shows: qtcreator: Installed: 2.4.1-0ubuntu2 Candidate: 2.4.1-0ubuntu2 Version table: *** ...
2
votes
2answers
144 views

Qt applications have tiny fonts on XFCE

My question is almost the same as this one but the answer did not work for me. I'm running OpenSuse 13.1 with XFCE desktop. I have set ~/.kde4/share/config/kcmfonts with forceFontDPI=0 but it didnt ...
11
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2answers
3k views

What is difference between GTK and QT applications?

Many packages available with GTK and QT versions. So, What is difference between them? Is there any difference in performance or working method?
2
votes
1answer
1k views

qtconfig tool for Qt 5?

I've just installed QT 5 in Arch Linux, but only qtconfig doesn't work: %> qtconfig qtconfig: could not exec '/usr/lib/qt/bin/qtconfig': No such file or directory Yes, there's no such file, not ...
0
votes
1answer
21 views

How to access GNOME header in Qt project

I'm working on developing a Qt/C++ application for Linux distros which has a module which deals with icon overlays. I need icon overlays exactly like in svn or dropbox. First I'm starting with GNOME ...
1
vote
0answers
343 views

How do I set default font for all Qt5 applications?

In Qt4, there used to be a tool called qtconfig that allowed you to set the fonts and other stuff. It also picked up the settings from KDE4's control panel. I'm working with Qt5 now (binary ...
3
votes
1answer
2k views

How do I change which version of Qt is used for qmake?

I feel like there should be a simple way of doing this, but my googlefu is failing so I'd really appreciate some info on how to switch (or even permanently change) which version of Qt is used when ...
1
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0answers
50 views

Is there a QT4 equivalent of gksu, not dependent on KDE libraries?

Is there a QT4 application with the same functionality as sudo to gksu that does not require an entire KDE desktop to be installed?
0
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0answers
28 views

Where to get styles for QT4 applications, not dependent on KDE libraries?

I am running some QT4 applications without a GNOME or KDE desktop. KDE-Look.org has many style themes, but they all seem to require KDE libraries. qtconfig contains a very limited selection of QT4 ...
0
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0answers
78 views

qt related catastrophic crash in OpenSCAD

When using OpenSCAD, if I try to "Save As" or "Open" then OpenSCAD vanishes along with my work without giving so much as even an explanation (wow I miss those Windows error dialogs sometimes!) I ...
1
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0answers
80 views

How do I get a Qt app running on MATE to open embedded URLs?

I'm running Linux Mint with the MATE desktop. I'm using Everpad, which is a Python app that uses Qt. When I click on an http URL in the text, nothing happens. I assume this is because Qt doesn't have ...
1
vote
1answer
62 views

Why does Debian under-report the space available when installing Qt?

I want to install Qt on my Debian but it doesn't detect the whole free space! I tried to install it in /home/Qt but it says that only 23.87 MiB of space is available while df -h says that there is ...
4
votes
1answer
695 views

Archlinux & openbox - greyish win 95 applications

I have just installed Archlinux & openbox but i have to say i am a bit dissapointed that the applications have this dull greyish (win 95) look: On the picture there are two programs open which ...
3
votes
0answers
319 views

Test automation tools for desktop application

Is there any GUI / functionality test automation tools for testing QT3 based GUI applications? I went through LDTP, dogtail, Squish, and Sikuli but all dependent on specific QT versions. Also, ...
1
vote
1answer
224 views

Buildroot OpenGL Capable Backend

I'm trying to configure QT 5 through buildroot and some options are not available with the message requires an OpenGL-capable backend. I'm using buildroot 2013.08-rc1 but the same message comes up ...
0
votes
1answer
144 views

How to compile LXDE on OpenIndiana - how to deal with those AM errors in lxde-common-qt?

OI is latest 151a7. Fresh install, total newbie, installed ss-dev, gcc-dev, sunstudio, a few other packages I thought were relevant based on what I read. Just want to compile LXDE from source because ...
1
vote
2answers
2k views

Starting Qt Application On Startup for Embedded Linux

I'm trying to get a Qt application to launch immediately after booting up. When booted, the Linux image does nothing more than launch an X server and a terminal. It also has the cron daemon running in ...
1
vote
2answers
588 views

GTK2, GTK3 or QT for LXDE optimized application

For developing an application optimized for LXDE, should you choose GTK2, GTK3 or QT? Most LXDE apps are currently using GTK2, but it looks like GTK2 is becoming dead and the LXDE developers are ...
0
votes
1answer
40 views

Is there an easy way to print the GTK and QT versions installed on a system?

Is there an easy way to print the GTK and QT versions installed on a system? I am wanting to make a script that will print the version numbers of various developer tools and libraries.
0
votes
1answer
164 views

How to know which Linux kernel versions Qt 4.7 supports

I'd like to develop Qt 4.7 based applications running on my arm-linux MCU. However, I'm not sure if this Qt 4.7 supports the following two things: my Linux 2.6.37 kernel my Ti3530-cortexA8 MCU. I ...
0
votes
1answer
42 views

What is this feature in Linux 'to highlight characters' with QT?

Recently I came across this site. It says, in Linux with QT, it is possible 'to highlight characters' by pressing ShiftCtrl {Left,Right} or Shift {Left,Right}. Could somebody please explain this ...
1
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0answers
157 views

Can't drag and drop in Qt Creator

I recently installed the system upgrades for my Ubuntu distro (12.10). Since the upgrades, I can't drag and drop items in Qt Creator. I found a solution that requires editing of xorg.conf. My system ...
0
votes
1answer
72 views

How can I alter the appearance of “Qt::IBeamCursor” in ReText?

I'm running Lubuntu 12.10, fully updated. I used apt-get to install ReText 3.1.4, a qt app, and the various recommends. I managed to get the page and font appearance to my liking by using Qt4 ...
2
votes
1answer
571 views

Qt based apps have unreadable, tiny font sizes

I'm running debian squeeze with Xfce 4.6. Today I logged onto my machine and all Qt-based apps have really tiny font sizes. I took a screenshot with Kile, skype 2.6, Kate and gedit for comparison: ...
3
votes
4answers
557 views

Qt programs have Greek fonts on one Debian account (QtConfig, Virtualbox and VLC)

Update: I have created a new user via adduser and Virtualbox fonts are OK there. This does not solve my problem, however... I still don't know what is going on and I'd like my own user account to have ...
3
votes
1answer
307 views

Encoding Problem: Qt Apps delete all non ASCII chars from files

Qt applications are deleting non-latin characters from ISO-8859 encoded files on my Gentoo system. Actually I'm trying to merge two German files with KDiff3 and P4Merge (making "Whlen" out of ...
3
votes
3answers
661 views

How to make Compose work in GTK and Qt apps?

I used Gnome for a long time, but preferred vanilla X input method (xim) over the default GTK behaviour. I just set GTK_IM_MODULE and QT_IM_MODULE enviroment variables to xim, and didn't have any ...
2
votes
1answer
255 views

Will updating KDE also update Qt?

Right now I'm using OpenSUSE 12.2 with KDE 4.9.4. If I upgrade that to KDE 4.10 in January, will it also bring in Qt 5 (or at least newer Qt packages)? Or are the Qt packages tied to the OS?
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votes
2answers
3k views

Building Qt: 'make clean' causes everything to get recompiled?

(This applies to Qt versions >= 4.7.3.) I made an attempt to build Qt with custom parameters on my Debian box and it actually took AGES to compile (IIRC more than 6 hours on a single-core CPU). That's ...
3
votes
1answer
656 views

Trying to use multiple Debian repositories

General situation: I need to port a Qt project from MS Visual Studio 2010 to Linux (Debian). In VS 2010 I have Qt v.4.8.1, but in Debian it is Qt v.4.6.1. This difference prevents me from porting, as ...
5
votes
1answer
249 views

How to dump the icon of a running X program?

Is there a way to get the icon of a running X program? When you switch between windows, you could see the icon of it, e.g through xfwm4.
1
vote
1answer
492 views

Error QProcess: Destroyed while process is still running

Edit: I discovered that the problem is not related with the script cited below, but I'll leave it there just for history. Well, this error appears when I close texstudio with the viewer open (xdvi or ...
0
votes
0answers
229 views

Downloading and installing KDE libraries on Kubuntu 12.04

I want to start writing some simple plasmoids. However I am unable to use K-objects in QtCreator or KDevelop. I likely do not have the required libraries / SDK. How do I install it, or if I already ...
6
votes
3answers
2k views

Mounting and modifying a loopback file without sudo/root, is it possible?

I'm trying to adapt a tutorial into an easy to use script http://qt-project.org/wiki/RaspberryPi_Beginners_guide. I'm trying to reduce the need for sudo/root as much as possible (preferably, only ...
0
votes
1answer
310 views

Scribus crashes with .ICEauthority

I've been trying to get scribus to work on my new gentoo 12.1 (amd64, XFCE, qt 4.8.2) installation, but when running as a regular user the program won't start up. Thanks to suggestions and extra tests ...
2
votes
0answers
390 views

How to fix link error under CMake for class QX11Info on Mac OS X

I'm trying to build kxstitch, which is designed for Linux, on OS X. I've gotten most of the way there by installing MacPorts, XCode, KDE, etc. and making minor changes to the build file, but am ...
0
votes
2answers
444 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 ...
2
votes
1answer
234 views

Qt based apps have wrong encoding?

I have Ubuntu 11.04. Yesterday I installed VirtualBox and the encoding was wrong (I couldn't read anything). I know its UI very well so I tried changing the UI display language but it didn't work as ...
2
votes
1answer
412 views

Qmake not working in a mounted smb dir

I'm trying to use qmake in a samba mounted directory. Here is what I get jj@deb32-6:~/smbShare$ qmake . QFSFileEngine::currentPath: stat(".") failed QFSFileEngine::currentPath: stat(".") failed ...