ReadAllStandardOutput() is returning empty characters if they are not recognised

[ChristianEhrlicher]

You're still outputting the data to the command line instead using a QMessageBox as I said in my second post so it can't work... https://www.qtcentre.org/threads/704...088#post306088

[anda_skoa]

If it is a problem with the normal output of the Windows version of youtube-dl you could try its JSON output options.

Cheers,
_