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.\"***************************************************************************
.\" Copyright 2019-2023,2024 Thomas E. Dickey *
.\" Copyright 2002-2011,2012 Free Software Foundation, Inc. *
.\" *
.\" Permission is hereby granted, free of charge, to any person obtaining a *
.\" copy of this software and associated documentation files (the *
.\" "Software"), to deal in the Software without restriction, including *
.\" without limitation the rights to use, copy, modify, merge, publish, *
.\" distribute, distribute with modifications, sublicense, and/or sell *
.\" copies of the Software, and to permit persons to whom the Software is *
.\" furnished to do so, subject to the following conditions: *
.\" *
.\" The above copyright notice and this permission notice shall be included *
.\" in all copies or substantial portions of the Software. *
.\" *
.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
.\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
.\" IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
.\" DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
.\" OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
.\" THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
.\" *
.\" Except as contained in this notice, the name(s) of the above copyright *
.\" holders shall not be used in advertising or otherwise to promote the *
.\" sale, use or other dealings in this Software without prior written *
.\" authorization. *
.\"***************************************************************************
.\"
.\" $Id: curs_border_set.3x,v 1.36 2024/04/20 21:20:07 tom Exp $
.TH border_set 3NCURSES 2024-04-20 "ncurses 6.5" "Library calls"
.ie \n(.g \{\
.ds `` \(lq
.ds '' \(rq
.\}
.el \{\
.ie t .ds `` ``
.el .ds `` ""
.ie t .ds '' ''
.el .ds '' ""
.\}
.SH NAME
\fB\%border_set\fP,
\fB\%wborder_set\fP,
\fB\%box_set\fP,
\fB\%hline_set\fP,
\fB\%whline_set\fP,
\fB\%mvhline_set\fP,
\fB\%mvwhline_set\fP,
\fB\%vline_set\fP,
\fB\%wvline_set\fP,
\fB\%mvvline_set\fP,
\fB\%mvwvline_set\fP \-
draw borders and lines in a \fIcurses\fR window of wide characters
.SH SYNOPSIS
.nf
\fB#include <curses.h>
.PP
\fBint border_set(
\fBconst cchar_t *\fIls\fB, const cchar_t *\fIrs\fP,
\fBconst cchar_t *\fIts\fB, const cchar_t *\fIbs\fP,
\fBconst cchar_t *\fItl\fB, const cchar_t *\fItr\fP,
\fBconst cchar_t *\fIbl\fB, const cchar_t *\fIbr\fB);\fR
.br
\fBint wborder_set(\fP
\fBWINDOW *\fIwin\fP,
\fBconst cchar_t *\fIls\fB, const cchar_t *\fIrs\fP,
\fBconst cchar_t *\fIts\fB, const cchar_t *\fIbs\fP,
\fBconst cchar_t *\fItl\fB, const cchar_t *\fItr\fP,
\fBconst cchar_t *\fIbl\fB, const cchar_t *\fIbr\fB);\fR
\fBint box_set(\fP
\fBWINDOW *\fIwin\fP,
\fBconst cchar_t *\fIverch\fP,
\fBconst cchar_t *\fIhorch\fB);\fR
\fBint hline_set(\fP
\fBconst cchar_t *\fIwch\fB, int \fIn\fB);\fR
\fBint whline_set(\fP
\fBWINDOW *\fIwin\fP,
\fBconst cchar_t *\fIwch\fB, int \fIn\fB);\fR
\fBint mvhline_set(\fP
\fBint \fIy\fB, int \fIx\fP,
\fBconst cchar_t *\fIwch\fB, int \fIn\fB);\fR
\fBint mvwhline_set(\fP
\fBWINDOW *\fIwin\fP,
\fBint \fIy\fB, int \fIx\fP,
\fBconst cchar_t *\fIwch\fB, int \fIn\fB);\fR
\fBint vline_set(\fP
\fBconst cchar_t *\fIwch\fB, int \fIn\fB);\fR
\fBint wvline_set(\fP
\fBWINDOW *\fIwin\fP,
\fBconst cchar_t *\fIwch\fB, int \fIn\fB);\fR
\fBint mvvline_set(\fP
\fBint \fIy\fB, int \fIx\fP,
\fBconst cchar_t *\fIwch\fB, int \fIn\fB);\fR
\fBint mvwvline_set(\fP
\fBWINDOW *\fIwin\fP,
\fBint \fIy\fB, int \fIx\fP,
\fBconst cchar_t *\fIwch\fB, int \fIn\fB);\fR
.fi
.SH DESCRIPTION
The
\fBborder_set\fP
and
\fBwborder_set\fP
functions draw a border around the edges of the current or specified window.
These functions do not change the cursor position, and do not wrap.
.PP
Other than the window, each argument is a complex character with attributes:
.RS
\fIls\fP \- left side,
.br
\fIrs\fP \- right side,
.br
\fIts\fP \- top side,
.br
\fIbs\fP \- bottom side,
.br
\fItl\fP \- top left-hand corner,
.br
\fItr\fP \- top right-hand corner,
.br
\fIbl\fP \- bottom left-hand corner, and
.br
\fIbr\fP \- bottom right-hand corner.
.RE
.PP
If any of these arguments is zero, then the corresponding
default values (defined in \fBcurses.h\fP) are used instead:
.RS
\fBWACS_VLINE\fP,
.br
\fBWACS_VLINE\fP,
.br
\fBWACS_HLINE\fP,
.br
\fBWACS_HLINE\fP,
.br
\fBWACS_ULCORNER\fP,
.br
\fBWACS_URCORNER\fP,
.br
\fBWACS_LLCORNER\fP, and
.br
\fBWACS_LRCORNER\fP.
.RE
.PP
\fBbox_set(\fIwin\fR, \fIverch\fB, \fIhorch\fB);\fR
is a shorthand for the following call:
.PP
\fBwborder_set(\fIwin\fB, \fIverch\fB, \fIverch\fB,\fR
\fIhorch\fB, \fIhorch\fB, NULL, NULL, NULL, NULL);\fR
.PP
The
\fB*line_set\fP
functions use
\fIwch\fP
to draw a line starting at the current cursor position in the window.
The line is at most \fIn\fP characters long or as many as fit into the window.
The current cursor position is not changed.
.PP
The
\fBhline_set\fP,
\fBmvhline_set\fP,
\fBmvwhline_set\fP, and
\fBwhline_set\fP
functions draw a line proceeding toward the last column of the same line.
.PP
The
\fBvline_set\fP,
\fBmvvline_set\fP,
\fBmvwvline_set\fP, and
\fBwvline_set\fP
functions draw a line proceeding toward the last line of the window.
.SH RETURN VALUE
Upon successful completion, these functions return
\fBOK\fP.
Otherwise, they return
\fBERR\fP.
.PP
Functions using a window parameter return an error if it is null.
.PP
Functions prefixed with \*(``mv\*('' first perform cursor movement and
fail if the position
.RI ( y ,
.IR x )
is outside the window boundaries.
.SH NOTES
Note that
\fBborder_set\fP,
\fBhline_set\fP,
\fBmvhline_set\fP,
\fBmvvline_set\fP,
\fBmvwhline_set\fP,
\fBmvwvline_set\fP, and
\fBvline_set\fP
may be macros.
.SH PORTABILITY
These functions are described in X/Open Curses, Issue 4.
.SH SEE ALSO
\fB\%ncurses\fP(3NCURSES),
\fB\%add_wch\fP(3NCURSES),
\fB\%border\fP(3NCURSES),
\fB\%outopts\fP(3NCURSES)
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