The use_legacy_coding function is an extension to the curses
library. It allows the caller to change the result of unctrl,
and suppress related checks within the library that would
normally cause nonprinting characters to be rendered in visible
form. This affects only 8-bit characters.
The level parameter controls the result:
0 the library functions normally, rendering nonprinting
characters as described in unctrl.
1 the library ignores isprintf for codes in the range
160-255.
2 the library ignores isprintf for codes in the range
128-255. It also modifies the output of unctrl,
showing codes in the range 128-159 as is.
ЗНАЧЕНИЕ ВОЗВРАЩАЕМОЕ
If the screen has not been initialized, or the level parameter is
out of range, the function returns ERR. Otherwise, it returns
the previous level: 0, 1 or 2.
ПЕРЕНОСИМОСТЬ
This routine is specific to ncurses. It was not supported on
Version 7, BSD or System V implementations. It is recommended
that any code depending on ncurses extensions be conditioned
using NCURSES_VERSION.
СМОТРИТЕ ТАКЖЕ
unctrl(3X).
АВТОР
Thomas Dickey (to support lynx's font-switching feature).
КОЛОФОН
This page is part of the ncurses (new curses) project.
Information about the project can be found at
⟨https://www.gnu.org/software/ncurses/ncurses.html⟩. If you have
a bug report for this manual page, send it to
bug-ncurses-request@gnu.org. This page was obtained from the
project's upstream Git mirror of the CVS repository
⟨https://github.com/mirror/ncurses.git⟩ on 2024-06-14. (At that
time, the date of the most recent commit that was found in the
repository was 2023-03-12.) If you discover any rendering
problems in this HTML version of the page, or you believe there
is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
man-pages@man7.org
legacy_coding(3X)
