ncursesw-morphos/man/curs_inch.3x
Thomas E. Dickey 96d6b16de0 ncurses 5.7 - patch 20101204
+ add special case to _nc_infotocap() to recognize the setaf/setab
  strings from xterm+256color and xterm+88color, and provide a reduced
  version which works with termcap.
+ remove obsolete emacs "Local Variables" section from documentation
  (request by Sven Joachim).
+ update doc/html/index.html to include NCURSES-Programming-HOWTO.html
  (report by Sven Joachim).
2010-12-04 21:15:53 +00:00

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.\" $Id: curs_inch.3x,v 1.17 2010/12/04 18:36:44 tom Exp $
.TH curs_inch 3X ""
.SH NAME
\fBinch\fR,
\fBwinch\fR,
\fBmvinch\fR,
\fBmvwinch\fR \- get a character and attributes from a \fBcurses\fR window
.SH SYNOPSIS
\fB#include <curses.h>\fR
.sp
\fBchtype inch(void);\fR
.br
\fBchtype winch(WINDOW *win);\fR
.br
\fBchtype mvinch(int y, int x);\fR
.br
\fBchtype mvwinch(WINDOW *win, int y, int x);\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
extract the character or attributes alone.
.
.SS Attributes
The following bit-masks may be AND-ed with characters returned by \fBwinch\fR.
.
.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
.TE
.SH RETURN VALUE
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
Note that all of these routines may be macros.
.SH PORTABILITY
These functions are described in the XSI Curses standard, Issue 4.
.SH SEE ALSO
\fBcurses\fR(3X).
.PP
Comparable functions in the wide-character (ncursesw) library are
described in
\fBcurs_in_wch\fR(3X).