.\"***************************************************************************
.\" Copyright 2018-2019,2020 Thomas E. Dickey                                *
.\" Copyright 2002-2012,2017 Free Software Foundation, Inc.                  *
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.\"***************************************************************************
.\"
.\" $Id: curs_in_wchstr.3x,v 1.14 2020/10/17 23:19:44 tom Exp $
.TH curs_in_wchstr 3X ""
.ie \n(.g .ds `` \(lq
.el       .ds `` ``
.ie \n(.g .ds '' \(rq
.el       .ds '' ''
.na
.hy 0
.SH NAME
\fBin_wchstr\fR,
\fBin_wchnstr\fR,
\fBwin_wchstr\fR,
\fBwin_wchnstr\fR,
\fBmvin_wchstr\fR,
\fBmvin_wchnstr\fR,
\fBmvwin_wchstr\fR,
\fBmvwin_wchnstr\fR \- get an array of complex characters and renditions from a curses window
.ad
.hy
.SH SYNOPSIS
.nf
\fB#include <curses.h>\fR
.sp
\fBint in_wchstr(cchar_t *\fR\fIwchstr\fR\fB);\fR
.br
\fBint in_wchnstr(cchar_t *\fR\fIwchstr\fR\fB, int \fR\fIn\fR\fB);\fR
.br
\fBint win_wchstr(WINDOW *\fR\fIwin\fR\fB, cchar_t *\fR\fIwchstr\fR\fB);\fR
.br
\fBint win_wchnstr(WINDOW *\fR\fIwin\fR\fB, cchar_t *\fR\fIwchstr\fR\fB, int \fR\fIn\fR\fB);\fR
.sp
\fBint mvin_wchstr(int \fR\fIy\fR\fB, int \fR\fIx\fR\fB, cchar_t *\fR\fIwchstr\fR\fB);\fR
.br
\fBint mvin_wchnstr(int \fR\fIy\fR\fB, int \fR\fIx\fR\fB, cchar_t *\fR\fIwchstr\fR\fB, int \fR\fIn\fR\fB);\fR
.br
\fBint mvwin_wchstr(WINDOW *\fR\fIwin\fR\fB, int \fR\fIy\fR\fB, int \fR\fIx\fR\fB, cchar_t *\fR\fIwchstr\fR\fB);\fR
.br
\fBint mvwin_wchnstr(WINDOW *\fR\fIwin\fR\fB, int \fR\fIy\fR\fB, int \fR\fIx\fR\fB, cchar_t *\fR\fIwchstr\fR, int \fIn\fR\fB);\fR
.fi
.SH DESCRIPTION
These functions return an array of complex characters in \fIwchstr\fR,
starting at the current cursor position in the named window.
Attributes (rendition) are stored with the characters.
.PP
The
\fBin_wchnstr\fR,
\fBmvin_wchnstr\fR,
\fBmvwin_wchnstr\fR
and
\fBwin_wchnstr\fR
fill the array
with at most
\fIn\fR
\fBcchar_t\fR
elements.
.br
.SH NOTES
Note that all routines except
\fBwin_wchnstr\fR
may be
macros.
.PP
Reading a line that overflows the array pointed to by
\fIwchstr\fR
with
\fBin_wchstr\fR,
\fBmvin_wchstr\fR,
\fBmvwin_wchstr\fR
or
\fBwin_wchstr\fR
causes undefined results.
Therefore, the use of
\fBin_wchnstr\fR,
\fBmvin_wchnstr\fR,
\fBmvwin_wchnstr\fR, or
\fBwin_wchnstr\fR
is recommended.
.SH RETURN VALUE
Upon successful completion, these functions return
\fBOK\fR.
Otherwise, they return
\fBERR\fR.
.PP
Functions with a \*(``mv\*('' prefix first perform a cursor movement using
\fBwmove\fP, and return an error if the position is outside the window,
or if the window pointer is null.
.SH PORTABILITY
The XSI Curses defines no error conditions.
This implementation checks for null pointers,
returning \fBERR\fP in that case.
.SH SEE ALSO
Functions:
\fBcurses\fR(3X),
\fBcurs_in_wch\fR(3X),
\fBcurs_instr\fR(3X),
\fBcurs_inwstr\fR(3X)
\fBcurs_inchstr\fR(3X)