Could not find window id

[Tobit Flatscher]

First of all thanks a lot for your effort. The possibility of having access to other applications inside rqt sounds intriguing but initially I couldn't get it to work as it is not mentioned explicitly that you need wmctrl for it to work.

After having entered the Qt GUI command to execute (disable splashscreen) it always brings up another dialog box If you prefer to find the window by the window name, input it here and then no matter what I'd input there it would launch the application in a different window,

run for a couple of seconds, then close that window outputting

[ERROR] [1624277439.772656]: Could not find window id...
[ERROR] [1624277439.777458]: Command was: rviz -s None
Window name was: ''
StdOut was:
StdErr was: QPainter::begin: Paint device returned engine == 0, type: 2
QPainter::setPen: Painter not active

to the console. Furthermore when launching the test_if_window_can_be_embedded.py script it would terminate with

subprocess.CalledProcessError: Command 'wmctrl -lp' returned non-zero exit status 127.

This can be resolved by installing wmctrl

$ sudo apt-get install wmctrl

[Tobit Flatscher]

This problem can be resolved by installing wmctrl with

$ sudo apt-get install wmctrl

[Sam Pfeiffer]

I'm glad you found the solution! The package actually depends in package.xml to wmctrl, I guess that when I get to release the package, and people can just apt-get install it, this will not happen again. Thanks for your kind comments, though!

[Tobit Flatscher]

@awesomebytes Oh, sorry, I missed that one. So actually $ rosdep install rqt_embed_window would have solved it as well!