.\"***************************************************************************
-.\" Copyright (c) 1998 Free Software Foundation, Inc. *
+.\" Copyright (c) 1998-2007,2010 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 *
.\" authorization. *
.\"***************************************************************************
.\"
-.\" $Id: curs_border.3x,v 1.11 1999/01/30 23:11:47 tom Exp $
+.\" $Id: curs_border.3x,v 1.22 2010/12/04 18:36:44 tom Exp $
.TH curs_border 3X ""
+.na
+.hy 0
.SH NAME
-\fBborder\fR, \fBwborder\fR, \fBbox\fR,
-\fBhline\fR, \fBwhline\fR, \fBvline\fR, \fBwvline\fR - create
-\fBcurses\fR borders, horizontal and vertical lines
+\fBborder\fR,
+\fBwborder\fR,
+\fBbox\fR,
+\fBhline\fR,
+\fBwhline\fR,
+\fBvline\fR,
+\fBwvline\fR,
+\fBmvhline\fR,
+\fBmvwhline\fR,
+\fBmvvline\fR,
+\fBmvwvline\fR \- create \fBcurses\fR borders, horizontal and vertical lines
+.ad
+.hy
.SH SYNOPSIS
\fB#include <curses.h>\fR
.br
.br
\fBint wvline(WINDOW *win, chtype ch, int n);\fR
.br
-\fBmvhline(int y, int x, chtype ch, int n);\fR
+\fBint mvhline(int y, int x, chtype ch, int n);\fR
.br
-\fBmvwhline(WINDOW *, int y, int x, chtype ch, int n);\fR
+\fBint mvwhline(WINDOW *, int y, int x, chtype ch, int n);\fR
.br
\fBint mvvline(int y, int x, chtype ch, int n);\fR
.br
\fBint mvwvline(WINDOW *, int y, int x, chtype ch, int n);\fR
.br
.SH DESCRIPTION
-The \fBborder\fR, \fBwborder\fR and \fBbox\fR routines draw a box around the
-edges of a window. The argument \fIls\fR is a character and attributes used
-for the left side of the border, \fIrs\fR - right side, \fIts\fR - top side,
-\fIbs\fR - bottom side, \fItl\fR - top left-hand corner, \fItr\fR - top
-right-hand corner, \fIbl\fR - bottom left-hand corner, and \fIbr\fR - bottom
-right-hand corner. If any of these arguments is zero, then the following
-default values (defined in \fBcurses.h\fR) are used instead: \fBACS_VLINE\fR,
-\fBACS_VLINE\fR, \fBACS_HLINE\fR, \fBACS_HLINE\fR, \fB\fBACS_ULCORNER\fR,
-\fBACS_URCORNER\fR, \fBACS_LLCORNER\fR, \fBACS_LRCORNER\fR.
-
+The \fBborder\fR, \fBwborder\fR and \fBbox\fR routines
+draw a box around the edges of a window.
+Other than the window, each argument is a character with attributes:
+.sp
+.RS
+\fIls\fR \- left side,
+.br
+\fIrs\fR \- right side,
+.br
+\fIts\fR \- top side,
+.br
+\fIbs\fR \- bottom side,
+.br
+\fItl\fR \- top left-hand corner,
+.br
+\fItr\fR \- top right-hand corner,
+.br
+\fIbl\fR \- bottom left-hand corner, and
+.br
+\fIbr\fR \- bottom right-hand corner.
+.RE
+.PP
+If any of these arguments is zero, then the corresponding
+default values (defined in \fBcurses.h\fR) are used instead:
+.sp
+.RS
+\fBACS_VLINE\fR,
+.br
+\fBACS_VLINE\fR,
+.br
+\fBACS_HLINE\fR,
+.br
+\fBACS_HLINE\fR,
+.br
+\fBACS_ULCORNER\fR,
+.br
+\fBACS_URCORNER\fR,
+.br
+\fBACS_LLCORNER\fR,
+.br
+\fBACS_LRCORNER\fR.
+.RE
+.PP
\fBbox(\fR\fIwin\fR\fB, \fR\fIverch\fR\fB, \fR\fIhorch\fR\fB)\fR is a shorthand
for the following call: \fBwborder(\fR\fIwin\fR\fB,\fR \fIverch\fR\fB,\fR
\fIverch\fR\fB,\fR \fIhorch\fR\fB,\fR \fIhorch\fR\fB, 0, 0, 0, 0)\fR.
-
+.PP
The \fBhline\fR and \fBwhline\fR functions draw a horizontal (left to right)
line using \fIch\fR starting at the current cursor position in the window. The
current cursor position is not changed. The line is at most \fIn\fR characters
long, or as many as fit into the window.
-
+.PP
The \fBvline\fR and \fBwvline\fR functions draw a vertical (top to bottom) line
using \fIch\fR starting at the current cursor position in the window. The
current cursor position is not changed. The line is at most \fIn\fR characters
.SH RETURN VALUE
All routines return the integer \fBOK\fR. The SVr4.0 manual says "or a
non-negative integer if \fBimmedok\fR is set", but this appears to be an error.
+.PP
+X/Open does not define any error conditions.
+This implementation returns an error
+if the window pointer is null.
+.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 NOTES
The borders generated by these functions are \fIinside\fR borders (this
is also true of SVr4 curses, though the fact is not documented).
-
+.PP
Note that \fBborder\fR and \fBbox\fR may be macros.
.SH PORTABILITY
-These functions are described in the XSI Curses standard, Issue 4. Additional
-functions \fBmvhline\fR, \fBmvvline\fR, \fBmvwhline\fR, and \fBmvwvline\fR are
-described there which this implementation does not yet support. The standard
-specifies that they return \fBERR\fR on failure, but specifies no error
-conditions.
+These functions are described in the XSI Curses standard, Issue 4.
+The standard specifies that they return \fBERR\fR on failure,
+but specifies no error conditions.
.SH SEE ALSO
\fBcurses\fR(3X), \fBcurs_outopts\fR(3X).
-.\"#
-.\"# The following sets edit modes for GNU EMACS
-.\"# Local Variables:
-.\"# mode:nroff
-.\"# fill-column:79
-.\"# End:
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