.\"	$NetBSD: curses_scanw.3,v 1.4 2003/02/14 16:29:12 grant Exp $
.\"
.\" Copyright (c) 2002
.\"	Brett Lymn (blymn@NetBSD.org, brett_lymn@yahoo.com.au)
.\"
.\" This code is donated to the NetBSD Foundation by the Author.
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.\" modification, are permitted provided that the following conditions
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
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.Dd August 12, 2002
.Dt CURSES_SCANW 3
.Os
.Sh NAME
.Nm curses_scanw ,
.Nm scanw ,
.Nm wscanw ,
.Nm mvscanw ,
.Nm mvwscanw
.Nd curses read formatted data from screen routines
.Sh LIBRARY
.Lb libcurses
.Sh SYNOPSIS
.Fd #include \*[Lt]curses.h\*[Gt]
.Ft int
.Fn scanw "const char *fmt" "..."
.Ft int
.Fn wscanw "WINDOW *win" "const char *fmt" "..."
.Ft int
.Fn mvscanw "int y" "int x" "const char *fmt" "..."
.Ft int
.Fn mvwscanw "WINDOW *win" "int y" "int x" "const char *fmt" "..."
.Sh DESCRIPTION
These functions read formatted data from
.Dv stdscr
or from the specified window.
.Pp
The
.Fn scanw
function is the same as the
.Fn scanf
function, excepting that the input data stream is read from the current
cursor position on
.Dv stdscr ,
.Pp
The
.Fn wscanw
function is the same
as the
.Fn scanw
function, excepting that the data stream is read from the window specified by
.Fa win .
.Pp
The
.Fn mvscanw
and
.Fn mvwscanw
functions are the same as the
.Fn scanw
and
.Fn mvscanw
functions, respectively, excepting that
.Fn wmove
is called to move the cursor to the position specified by
.Fa y ,
.Fa x
before the data is read from the window.
.Sh RETURN VALUES
Functions returning pointers will return
.Dv NULL
if an error is detected.
The functions that return an int will return one of the following
values:
.Pp
.Bl -tag -width ERR -compact
.It Er OK
The function completed successfully.
.It Er ERR
An error occurred in the function.
.El
.Sh SEE ALSO
.Xr curses_cursor 3 ,
.Xr curses_print 3 ,
.Xr scanf 3
.Sh STANDARDS
The
.Nx
Curses library complies with the X/Open Curses specification, part of the
Single Unix Specification.
.Sh HISTORY
The Curses package appeared in
.Bx 4.0 .