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

[Lesiok]

Perhaps the problem is the Windows code page. I did the test with "Polish letters" and everything is OK but the result from youtube-dl is encoded in 1250 (8-bit code page) and not UTF-8. This is the link used for the test: https://www.youtube.com/watch?v=ndG8bM-9CMA
Can you provide the Japanese alphabet link to test?
P.S.
Test with arabic alphabet : https://www.youtube.com/watch?v=7Tc7LWpe7mg. Output generated on Windows is 29 bytes long, on Linux 85 bytes long. In my opinion it's an internal problem of youtube-dl.

[INeedADollar]

Perhaps the problem is the Windows code page. I did the test with "Polish letters" and everything is OK but the result from youtube-dl is encoded in 1250 (8-bit code page) and not UTF-8. This is the link used for the test: https://www.youtube.com/watch?v=ndG8bM-9CMA
Can you provide the Japanese alphabet link to test?
P.S.
Test with arabic alphabet : https://www.youtube.com/watch?v=7Tc7LWpe7mg. Output generated on Windows is 29 bytes long, on Linux 85 bytes long. In my opinion it's an internal problem of youtube-dl.

Link with Japanese Alphabet: https://www.youtube.com/watch?v=Bsfi4XbPE8M. I tried your link both with cmd and then with QProcess. When I tried the command in cmd with arabic alphabet link I got something like this ????? ??????? ?????? _35_ ????? ?????? The Ultimate Ninj, but if I copy paste the output(the title) in a browser I get the correct title.

When I tried with QProcess I got something like this: " _35_ The Ultimate Ninj". Maybe it's a problem with youtube-dl, I don't know.

I attached a photo to see how title looks after I copy-paste it in a browser from cmd.

[Lesiok]

definitely an environmental problem (operating system). On linux in a graphical environment (fonts installed for all alphabets) this result:
gc.PNG
On linux in a character environment like this:
tc.jpg

[INeedADollar]

definitely an environmental problem (operating system). On linux in a graphical environment (fonts installed for all alphabets) this result:
gc.PNG
On linux in a character environment like this:
tc.jpg

Ok thank you very much! Thank you very much all that tried to help me!

[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,
_