CODEWITHSUNDEEP
c++ubuntuqt5qapplicationqcoreapplication
Mr. Developerdude
Mr. Developerdude

Reputation: 9668

Should my schizophrenic console/gui Qt5 program use QApplication or QCoreApplication?

My program will either open a GUI or not depending on some commandline parameters. Right now I am instantiating QApplication for my main event loop, but noticed that my program aborts when run from a headless machine (missing xorg/xcb) unless i specify some environment variables to trick it into believing there is an xorg running.

When I instead instantiate QCoreApplication I don't have access to activeWindow(). The code requiring activeWindow() will never run in the cases when the program is run headless (that is the purose of the commandline parameters).

So what I am asking is, would it be possible to make QApplication run without problems even on a headless machine, and simply not show any GUI?

What are my other options?

Upvotes: 0

Views: 104

Answers (1)

synacker
synacker

Reputation: 1782

No, this is not possible. But you can create QCoreApplication or QApplication in dependent from command line args.

Upvotes: 1

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