NAME
curses_background,
bkgd, bkgdset,
getbkgd, wbkgd,
wbkgdset —
curses attribute manipulation
routines
LIBRARY
library “libcurses”
SYNOPSIS
#include
<curses.h>
int
bkgd(chtype);
void
bkgdset(chtype);
chtype
getbkgd(WINDOW
*);
int
wbkgd(WINDOW
*, chtype);
void
wbkgdset(WINDOW
*, chtype);
DESCRIPTION
These functions manipulate the background attributes onstdscr or on the specified window.
The function
wbkgdset(win,
ch) sets the background attributes of the specified
window win to ch.
When the background attributes are set on a window, characters are added to the window with the logical OR of the background attributes and the character's attributes. If both the background attribute and the character attribute contain color, the color of the character attribute is rendered. If the background attribute contains a non-space character, then this character is added where the foreground character is a space character.
Note that subwindows created from win inherit the background attributes of win.
The function
wbkgd(win,
ch) sets the background attributes of the specified
window win to ch and also sets
the rendition of every character position on that window, as if the
characters had been newly added to win. The rendition
of characters on subwindows of win is also set to
ch.
The functions
bkgdset(ch)
and
bkgd(ch)
are equivalent to
wbkgdset(stdscr,
ch) and
wbkgd(stdscr,
ch), respectively.
The function
getbkgd(win)
returns the background attributes for the window
win.
RETURN VALUES
The functions wbkgdset() and
wbkgd() return OK on success and ERR on failure.
SEE ALSO
STANDARDS
The NetBSD Curses library complies with the X/Open Curses specification, part of the Single Unix Specification.
HISTORY
These functions first appeared in NetBSD 1.6.