can some one explain me this part & 0xFF == ord('q') .i understand it is used to detect when q is press but what is 0xff and ord

Question

if cv2.waitKey(1) & 0xFF == ord('q'): can some one explain me this part & 0xFF == ord('q') .i understand it is used to detect when q is press but what is 0xff and ord

Does this answer your question? [How cv2.waitKey(1) & 0xff == ord('q') works?](https://stackoverflow.com/questions/57690899/how-cv2-waitkey1-0xff-ordq-works) — HansQ, Jun 10 '22 at 10:28
The value returned by waitKey is masked such that only the least significant 8 bits are used in the comparison — DarkKnight, Jun 10 '22 at 10:29
@HansQ I have marked that question as a duplicate of the earlier question that I linked — jonsca, Jun 10 '22 at 10:32
@AlbertWinestein and that's been a pointless operation since 2016 — Christoph Rackwitz, Jun 10 '22 at 11:06

score 0 · Answer 1 · answered Jun 10 '22 at 10:24

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The ord function is a built-in python function that returns the unicode code point for a given character.

answered Jun 10 '22 at 10:24

HansQ

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can some one explain me this part & 0xFF == ord('q') .i understand it is used to detect when q is press but what is 0xff and ord

1 Answers1