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Re: Correct way to detect F1

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On 2018-01-28, shinobi <shinobi@f122.n1.z21.fsxnet> wrote:
> I wonder. What's the correct way to detect F1 in Linux Console?
>
> I guess getchar() returns character. And to my wonder it dispays
> different value using %d and %c. That's the best I came up with
> recently. Is there any better method?

%d prints its argument as a decimal value
%c prints its argument as a character

it should not be a suprise that %d and %c produce different output.

What character sequence do you expect to receive from typing F1 ?
Here, on an xterm, pressing F1 on the keyboard
produces the character sequence

  ESC [ 1 1 ~

or, in decimal

  27 91 49 49 126

five getchar() calls are needed to read that sequence.

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Thread

Correct way to detect F1 shinobi@f122.n1.z21.fsxnet (shinobi) - 2018-01-29 03:44 +1200
  Re: Correct way to detect F1 Lorinczy Zsigmond <zsiga@nospam.for.me> - 2018-01-29 10:34 +0100
    Re: Correct way to detect F1 Keith Thompson <kst-u@mib.org> - 2018-01-29 09:24 -0800
      Re: Correct way to detect F1 "James R. Kuyper" <jameskuyper@verizon.net> - 2018-01-29 12:43 -0500
        Re: Correct way to detect F1 scott@slp53.sl.home (Scott Lurndal) - 2018-01-29 18:20 +0000
      Re: Correct way to detect F1 ais523 <ais523@nethack4.org> - 2018-01-29 21:03 +0000
        Re: Correct way to detect F1 Robert Wessel <robertwessel2@yahoo.com> - 2018-01-29 20:47 -0600
          Re: Correct way to detect F1 Keith Thompson <kst-u@mib.org> - 2018-01-29 20:01 -0800
            Re: Correct way to detect F1 Robert Wessel <robertwessel2@yahoo.com> - 2018-01-29 22:43 -0600
  Re: Correct way to detect F1 Ike Naar <ike@iceland.freeshell.org> - 2018-01-29 10:26 +0000
  Re: Correct way to detect F1 "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2018-01-30 14:14 +0800
  Re: Correct way to detect F1 luser droog <luser.droog@gmail.com> - 2018-01-30 09:26 -0800
  Re: Correct way to detect F1 bartc <bc@freeuk.com> - 2018-01-30 18:39 +0000
  Re: Correct way to detect F1 Egor <egor@ruby.local> - 2018-02-08 14:21 +0200
    Re: Correct way to detect F1 shinobi@f153.n1.z21.fsxnet (shinobi) - 2018-02-08 16:41 +1200
      Re: Correct way to detect F1 Jorgen Grahn <grahn+nntp@snipabacken.se> - 2018-02-08 20:43 +0000
        Re: Correct way to detect F1 Keith Thompson <kst-u@mib.org> - 2018-02-08 13:13 -0800
          Re: Correct way to detect F1 scott@slp53.sl.home (Scott Lurndal) - 2018-02-08 22:14 +0000
    Re: Correct way to detect F1 Keith Thompson <kst-u@mib.org> - 2018-02-08 10:29 -0800
      Re: Correct way to detect F1 Egor <egor@ruby.local> - 2018-02-09 15:05 +0200
        Re: Correct way to detect F1 Jorgen Grahn <grahn+nntp@snipabacken.se> - 2018-02-09 17:30 +0000
        Re: Correct way to detect F1 Keith Thompson <kst-u@mib.org> - 2018-02-09 10:06 -0800
    Re: Correct way to detect F1 luser droog <luser.droog@gmail.com> - 2018-02-08 16:31 -0800

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