'\" t
.\"***************************************************************************
-.\" Copyright (c) 1998-2010,2017 Free Software Foundation, Inc. *
+.\" Copyright 2018-2021,2022 Thomas E. Dickey *
+.\" Copyright 1998-2010,2017 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_inch.3x,v 1.19 2017/10/28 20:16:52 Sven.Joachim Exp $
+.\" $Id: curs_inch.3x,v 1.28 2022/02/12 20:07:29 tom Exp $
.TH curs_inch 3X ""
+.ie \n(.g .ds `` \(lq
+.el .ds `` ``
+.ie \n(.g .ds '' \(rq
+.el .ds '' ''
.de bP
-.IP \(bu 4
+.ie n .IP \(bu 4
+.el .IP \(bu 2
..
.SH NAME
-\fBinch\fR,
-\fBwinch\fR,
-\fBmvinch\fR,
-\fBmvwinch\fR \- get a character and attributes from a \fBcurses\fR window
+\fBinch\fP,
+\fBwinch\fP,
+\fBmvinch\fP,
+\fBmvwinch\fP \- get a character and attributes from a \fBcurses\fP window
.SH SYNOPSIS
-\fB#include <curses.h>\fR
+\fB#include <curses.h>\fP
.sp
-\fBchtype inch(void);\fR
+\fBchtype inch(void);\fP
.br
-\fBchtype winch(WINDOW *win);\fR
-.br
-\fBchtype mvinch(int y, int x);\fR
+\fBchtype winch(WINDOW *\fIwin\fB);\fR
+.sp
+\fBchtype mvinch(int \fIy\fB, int \fIx\fB);\fR
.br
-\fBchtype mvwinch(WINDOW *win, int y, int x);\fR
+\fBchtype mvwinch(WINDOW *\fIwin\fB, int \fIy\fB, int \fIx\fB);\fR
.br
.SH DESCRIPTION
-These routines return the character, of type \fBchtype\fR, at the current
-position in the named window. If any attributes are set for that position,
-their values are OR'ed into the value returned. Constants defined in
-\fB<curses.h>\fR can be used with the \fB&\fR (logical AND) operator to
+These routines return the character, of type \fBchtype\fP, at the current
+position in the named window.
+If any attributes are set for that position,
+their values are OR'ed into the value returned.
+Constants defined in
+\fB<curses.h>\fP can be used with the \fB&\fP (logical AND) operator to
extract the character or attributes alone.
.
.SS Attributes
-The following bit-masks may be AND-ed with characters returned by \fBwinch\fR.
+The following bit-masks may be AND-ed with characters returned by \fBwinch\fP.
.
.TS
l l .
-\fBA_CHARTEXT\fR Bit-mask to extract character
-\fBA_ATTRIBUTES\fR Bit-mask to extract attributes
-\fBA_COLOR\fR Bit-mask to extract color-pair field information
+\fBA_CHARTEXT\fP Bit-mask to extract character
+\fBA_ATTRIBUTES\fP Bit-mask to extract attributes
+\fBA_COLOR\fP Bit-mask to extract color-pair field information
.TE
.SH RETURN VALUE
-Functions with a "mv" prefix first perform a cursor movement using
+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.
.PP
Reflecting this improvement, the function was altered to return the
character combined with all video attributes in a \fBchtype\fP value.
.PP
-X/Open Curses does not specify
+X/Open Curses does not specify
the size and layout of attributes, color and character values in
\fBchtype\fP; it is implementation-dependent.
This implementation uses 8 bits for character values.
should use the wide-character equivalents to these functions.
.SH SEE ALSO
.TP 5
-\fBcurses\fR(3X)
+\fBcurses\fP(3X)
gives an overview of the WINDOW and \fBchtype\fP data types.
.TP 5
-\fBcurs_attr\fR(3X)
+\fBcurs_attr\fP(3X)
goes into more detail, pointing out portability problems and
constraints on the use of \fBchtype\fP for returning window information.
.TP 5
-\fBcurs_in_wch\fR(3X)
+\fBcurs_in_wch\fP(3X)
describes comparable functions for the wide-character (ncursesw) library.