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I try to run some Qt application in a docker container by mounting /tmp/.X11-unix. I saw here that can be difficult.
So when I run kdevelop in a docker container, it does not work (I get an empty window). But if I run qtcreator it's fine.
I think the difference is because of the Qt version used (kdevelop is developed with Qt4 and qtcreator with Qt5). All my other Qt5 applications work fine, but not a single Qt4 application.
Question:
Does anyone know what to do to launch a Qt4 application, without going a long way round like with vnc or ssh, just like this:
docker run -it -e DISPLAY -v /tmp/.X11-unix:/tmp/.X11-unix someQt4AppContainer
?
919
To run a new docker container from your created os image in which you already install some GUI applications and env displays the environment that it received from its parent(base os), and set image name and version as you mentioned in the previous command.
GUI through Docker is crucial for numerous applications. However, several steps are required to be able to view the GUI at the host machine. In this article, we will use Tkinter to create a simple GUI in Python which can be accessed through Docker.
The short answer here is no. Windows containers don't have the underlying GUI components available, so you can't run any desktop application on Windows containers.
The container we launched now has the capability to run GUI applications. But we can only run two GUI applications (i.e. firefox and gedit) in our container because we've installed these two applications only. Launching the container (OS).
Qt5 and Qt4 has a different rendering subsystems
Qt4 renderer just needs a hint:
export QT_GRAPHICSSYSTEM="native"
This must be work
QT_GRAPHICSSYSTEM="native" docker run -it -e DISPLAY=$DISPLAY -v /tmp/.X11-unix:/tmp/.X11-unix someQt4AppContainer
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