curs_addchstr.3

.\" $OpenBSD: src/lib/libcurses/curs_addchstr.3,v 1.9 2010/01/12 23:21:58 nicm Exp $
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.\" $Id: curs_addchstr.3x,v 1.12 2006/12/02 17:02:45 tom Exp $
.TH curs_addchstr 3 ""
.na
.hy 0
.SH NAME
\fBaddchstr\fR,
\fBaddchnstr\fR,
\fBwaddchstr\fR,
\fBwaddchnstr\fR,
\fBmvaddchstr\fR,
\fBmvaddchnstr\fR,
\fBmvwaddchstr\fR,
\fBmvwaddchnstr\fR - add a string of characters (and attributes) to a \fBcurses\fR window
.ad
.hy
.SH SYNOPSIS
\fB#include <curses.h>\fR
.PP
\fBint addchstr(const chtype *chstr);\fR
.br
\fBint addchnstr(const chtype *chstr, int n);\fR
.br
\fBint waddchstr(WINDOW *win, const chtype *chstr);\fR
.br
\fBint waddchnstr(WINDOW *win, const chtype *chstr, int n);\fR
.br
\fBint mvaddchstr(int y, int x, const chtype *chstr);\fR
.br
\fBint mvaddchnstr(int y, int x, const chtype *chstr, int n);\fR
.br
\fBint mvwaddchstr(WINDOW *win, int y, int x, const chtype *chstr);\fR
.br
\fBint mvwaddchnstr(WINDOW *win, int y, int x, const chtype *chstr, int n);\fR
.SH DESCRIPTION
These routines copy \fIchstr\fR into the window image structure at and after
the current cursor position.  The four routines with \fIn\fR as the last
argument copy at most \fIn\fR elements, but no more than will fit on the line.
If \fBn\fR=\fB-1\fR then the whole string is copied, to the maximum number of
characters that will fit on the line.
.PP
The window cursor is \fInot\fR advanced, and these routines work faster than
\fBwaddnstr\fR.  On the other hand, they do not perform any kind of checking
(such as for the newline, backspace, 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.
.SH RETURN VALUES
All routines return the integer \fBERR\fR upon failure and \fBOK\fR on success
(the SVr4 manuals specify only "an integer value other than \fBERR\fR") upon
successful completion, unless otherwise noted in the preceding routine
descriptions.
.PP
X/Open does not define any error conditions.
This implementation returns an error
if the window pointer is null.
.SH NOTES
Note that all routines except \fBwaddchnstr\fR may be macros.
.SH PORTABILITY
These entry points are described in the XSI Curses standard, Issue 4.
.SH SEE ALSO
\fBcurses\fR(3).
.PP
Comparable functions in the wide-character (ncursesw) library are
described in
\fBcurs_add_wchstr\fR(3).
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