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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | NOTES | PORTABILITY | SEE ALSO | COLOPHON |
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curs_add_wchstr(3X) curs_add_wchstr(3X)
add_wchstr, add_wchnstr, wadd_wchstr, wadd_wchnstr, mvadd_wchstr,
mvadd_wchnstr, mvwadd_wchstr, mvwadd_wchnstr - add an array of
complex characters (and attributes) to a curses window
#include <curses.h>
int add_wchstr(const cchar_t *wchstr);
int add_wchnstr(const cchar_t *wchstr, int n);
int wadd_wchstr(WINDOW * win, const cchar_t *wchstr);
int wadd_wchnstr(WINDOW * win, const cchar_t *wchstr, int n);
int mvadd_wchstr(int y, int x, const cchar_t *wchstr);
int mvadd_wchnstr(int y, int x, const cchar_t *wchstr, int n);
int mvwadd_wchstr(WINDOW *win, int y, int x, const cchar_t *wchstr);
int mvwadd_wchnstr(WINDOW *win, int y, int x, const cchar_t *wchstr, int n);
These functions copy the (null-terminated) array of complex char‐
acters wchstr into the window image structure starting at the
current cursor position. The four functions with n as the last
argument copy at most n elements, but no more than will fit on
the line. If n=-1 then the whole array is copied, to the maximum
number of characters that will fit on the line.
The window cursor is not advanced. These functions work faster
than waddnstr. On the other hand:
• they do not perform checking (such as for the newline, back‐
space, or carriage return characters),
• they do not advance the current cursor position,
• they do not expand other control characters to ^-escapes, and
• they truncate the string if it crosses the right margin,
rather than wrapping it around to the new line.
These functions end successfully on encountering a null cchar_t,
or when they have filled the current line. If a complex charac‐
ter cannot completely fit at the end of the current line, the re‐
maining columns are filled with the background character and ren‐
dition.
All functions return the integer ERR upon failure and OK on suc‐
cess.
X/Open does not define any error conditions. This implementation
returns an error if the window pointer is null.
Functions with a “mv” prefix first perform a cursor movement us‐
ing wmove, and return an error if the position is outside the
window, or if the window pointer is null.
All functions except wadd_wchnstr may be macros.
These entry points are described in the XSI Curses standard, Is‐
sue 4.
curses(3X), curs_addwstr(3X).
Comparable functions in the narrow-character (ncurses) library
are described in curs_addchstr(3X).
This page is part of the ncurses (new curses) project. Informa‐
tion 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
curs_add_wchstr(3X)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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