'\" t
.\"***************************************************************************
-.\" Copyright (c) 1998-2010,2017 Free Software Foundation, Inc. *
+.\" Copyright 2018-2020,2021 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 1.20 2017/11/18 23:47:37 tom Exp $
+.\" $Id: curs_inch.3x,v 1.26 2021/06/17 21:30:22 tom Exp $
.TH curs_inch 3X ""
+.ie \n(.g .ds `` \(lq
+.el .ds `` ``
+.ie \n(.g .ds '' \(rq
+.el .ds '' ''
.de bP
.ie n .IP \(bu 4
.el .IP \(bu 2
.sp
\fBchtype inch(void);\fR
.br
-\fBchtype winch(WINDOW *win);\fR
-.br
-\fBchtype mvinch(int y, int x);\fR
+\fBchtype winch(WINDOW *\fP\fIwin\fP\fB);\fR
+.sp
+\fBchtype mvinch(int \fP\fIy\fP\fB, int \fP\fIx\fP\fB);\fR
.br
-\fBchtype mvwinch(WINDOW *win, int y, int x);\fR
+\fBchtype mvwinch(WINDOW *\fP\fIwin\fP\fB, int \fP\fIy\fP\fB, int \fP\fIx\fP\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
+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
extract the character or attributes alone.
.
\fBA_COLOR\fR 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.