Manual page for curs_bkgd(3X)
curs_bkgd, bkgd, bkgdset, wbkgdset, wbkgd - curses window background manipulation routines
SYNOPSIS
cc [ flag ... ] file ... -lcurses [ library .. ]
#include <curses.h>
int bkgd(chtype ch);
void bkgdset(chtype ch);
void wbkgdset(WINDOW *win,
chtype ch);
int wbkgd(WINDOW *win,
chtype ch);
MT-LEVEL
Unsafe
DESCRIPTION
The
bkgdsets()
and
wbkgdset()
routines manipulate the background of the named window.
Background is a
chtype
consisting of any combination of attributes and a character.
The attribute part of the background
is combined (ORed) with all non-blank characters that are
written into the window with
waddch().
Both the character and attribute parts of the background are combined with the
blank characters.
The background becomes a property of the character
and moves with the character through any scrolling and insert/delete
line/character operations.
To the extent possible on a particular
terminal, the attribute part of the background is displayed as
the graphic rendition of the character put on the screen.
The
bkgd()
and
wbkgd()
routines combine the new background with every position in the window.
Background is any combination of attributes and a character.
Only the attribute part is used to set the background of non-blank characters,
while both character and attributes are used for blank positions.
To the extent possible on a particular terminal, the attribute part
of the background is displayed as the graphic rendition of the character
put on the screen.
RETURN VALUES
bkgd()
and
wbkgd()
return the integer
OK,
or a non-negative integer, if
immedok()
is set.
See
curs_outopts.3x
SEE ALSO
curs_addch.3x
curs_outopts.3x
curses.3x
NOTES
The header <curses.h> automatically includes the headers
<stdio.h> and <unctrl.h>.
Note that
bkgdset()
and
bkgd()
may be macros.
Created by unroff & hp-tools.
© by Hans-Peter Bischof. All Rights Reserved (1997).
Last modified 21/April/97
