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

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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 ...
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1answer
308 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 ...
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29 views

How to edit Qt4 source and make changes apply

Sorry for noobish question, I have never done this before. Basically, I have a change to be done in /usr/src/qt/src/src/gui/kernel/qclipboard_x11.cpp There is a 10s timeout that causes apps to ...
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31 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 ...
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374 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, ...
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62 views

Behavior of ALT in Qt5 applications

I work in Arch Linux 64bit with both English and Hebrew keyboard layouts available, using Alt+Shift to change between them. I recently noticed that when I work in Texmaker, which is a Qt5 ...
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424 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 ...
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11 views

How to change the Qt version used by TeXstudio in elementary os Freya?

I have installed TexStudio 2.8.8. When I open it, it says TeXStudio has been compiled with Qt 4.8.6 but running with Qt 4.7.3. Please get the correct runtime library. when I checked in terminal with ...
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Is there a way to disable mouse scrolling on a combobox in GTK/Gnome and Qt/KDE?

I'm scrolling a window content and it happens the mouse pointer place over a combo box and it begins to scroll its content. This is annoying. I experienced it in KDE and Gnome and I'm wondering is ...
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49 views

Streaming Qt over ssh

I am trying to stream a program over ssh and it doesn't work. It is written in qml and I've already compiled it, but qmlscene doesn't work either (doesn't matter what file). The error I'm getting is ...
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397 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 ...
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59 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?
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89 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 ...
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177 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 ...
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9 views

0 Active connection while Downloading Blockchain?

I am not able to connect to download blockchain in logoscoin. It shows O active connection, I am also attach debug logs below: 2015-01-24 06:18:15 Logos version v0.8.6.4-ga5aedeb-beta (2015-01-22 ...
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18 views

assertion Failed error while running Bitcoin-Qt application?

I have downloaded Bitcoin-qt project from GitHub for Ubuntu 14.04, But I don't know why I'm getting error: Error: /main.cpp:2985: bool InitBlockIndex(): Assertion `block.hashMerkleRoot == ...
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21 views

Print to Qtopia Terminal

I'm trying to print hello to the Qtopia (2.2.0) Terminal using a program.desktop file program.desktop: [Translation] File=QtopiaApplications Context=program Comment[Desktop Entry/Name]=Use soft ...
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14 views

Run Qt Widget program on VPS with Xorg running over VNC

I want to start simple Qt program on my remote VPS. So I installed Xorg, BlackBox and x11vnc. It works good and I can connect to the server with VNC client. I see grey screen and if I run xterm & ...
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13 views

Trouble with installing libqca2-dev on ubuntu 12.04

I have installed Qt 4.8.4 from source at usr/local/Trolltec and now that I am trying to install libqca2-dev on Ubuntu 12.04, the apt-get tool fails with a dependency error stating that libqt4-dev is ...
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20 views

Dead key not working with konsole, yakuake

After setxkbmap fr, dead keys do not work under konsole and yakuake (typing the dead key ^ immediately prints a ^, rather than wait for the next character), while they work in xterm. The font I'm ...
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19 views

Qt 4 designer, I want more than KPlotWidget

In my Widget box, there is only the KPlotWidget. How could I add a MatplotlibWidget? I am running Ubuntu 14.
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126 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 ...
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50 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 ...
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165 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: *** ...
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41 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 ...
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249 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 ...