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

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3
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1answer
107 views

How can I set the default font size for all Qt5 apps?

I run Gnome, which has pretty good support for my HiDPI screen. However, when I run QT apps I can't seem to find a way to scale the fonts. Is there a way to do this without installing a full version ...
3
votes
1answer
364 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 ...
1
vote
1answer
508 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
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1answer
134 views

How to debug an installed Qt5 library with GDB?

Background: I am programming with Qt5 and want to debug the core Qt5 libraries on Debian using GDB. I have installed all the necessary -dev and -dbg packages. When I try to debug, GDB complains that ...
0
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1answer
56 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 ...
0
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1answer
36 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 ...
6
votes
0answers
104 views

Multiple Keyboard Layouts and Shortcuts

I configured KDE to switch easily from a bépo (french-dvorak) to an azerty layout. I configured it with the KDE interface (systemsettings), but I guess it just call setxkbmap be and setxkbmap fr. The ...
3
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0answers
33 views

Cannot use keyboard within Qt app without sudo

I have an embedded Qt application crosscompiled that runs on BeagleBone Black. It works Ok, but one thing- It doesnt accept keyboard input if i wont run in directly on BeagleBone Black preceeding with ...
3
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0answers
3k views

Chromium - Enabling Widevine Content Decryption Module

I am trying to enable Widevine inside Chromium in order to play video from source like Netflix. Recompiling Chromium is not really an option since I use Qt new browser that uses Chromium. I'm trying ...
3
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0answers
530 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, ...
2
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0answers
102 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 ...
2
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0answers
583 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 ...
2
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0answers
505 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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0answers
29 views

How to prevent Qt Applications from using GTK+ theme

Whenever I want to use custom QML components in my apps it makes them use GTK+ theme. How can I prevent this? Why am I asking here? Because I believe it has something to do with files ...
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0answers
64 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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0answers
75 views

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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0answers
103 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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0answers
84 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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0answers
109 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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0answers
222 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
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0answers
24 views

error while loading shared libraries: libboost_thread.so.1.54.0: cannot open shared object file: No such file or directory

I am trying to connect MongoDb with Qt c++. When I build it there is no error, just information like; :-1: warning: libboost_system.so.1.54.0, needed by /usr/local/lib/libboost_thread.so, may ...
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0answers
47 views

QtPy5 on Raspbian, getting ImportError: cannot import name QtCore

I need to be able to use the latest WebKit that includes WebRTC support How do I install Qt5+QtPy5 on Raspbian? What I have tried so far... Installed Qt5 on RPi2 - PASS Native build Qt5 on RPi2 ...
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0answers
65 views

Xvfb differences on Ubuntu and CentOS

I have an html screen capture utility built using Qt that uses WebKit. It basically takes html as input and produces a screen capture as a png. On Ubuntu desktop 12.04 the capture quality is ...
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0answers
11 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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0answers
60 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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30 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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65 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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0answers
24 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 ...
0
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0answers
64 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 ...
0
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0answers
29 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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260 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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0answers
110 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 ...
0
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0answers
240 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: *** ...
0
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0answers
266 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 ...