.\"	$NetBSD: curses_delch.3,v 1.4 2018/10/25 10:36:56 uwe 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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.Dd October 25, 2018
.Dt CURSES_DELCH 3
.Os
.Sh NAME
.Nm curses_delch ,
.Nm delch ,
.Nm wdelch
.Nd curses delete characters routines
.Sh LIBRARY
.Lb libcurses
.Sh SYNOPSIS
.In curses.h
.Ft int
.Fn delch "void"
.Ft int
.Fn wdelch "WINDOW *win"
.Sh DESCRIPTION
These functions delete characters from
.Dv stdscr
or from the specified window.
.Pp
The
.Fn delch
function deletes the character at the current cursor position on
.Dv stdscr .
Characters to the right of the deleted character are moved one position
to the left.
The cursor position is unchanged.
.Pp
The
.Fn wdelch
function is the same as the
.Fn delch
function, excepting that the character is deleted from the specified 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_addch 3 ,
.Xr curses_insch 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 .