curs_bkgd: bkgdset, wbkgdset, bkgd, wbkgd - curses window background
void bkgdset(chtype ch);
void wbkgdset(WINDOW *win, chtype ch);
int bkgd(chtype ch);
int wbkgd(WINDOW *win, chtype ch);
The bkgdset 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.
bkgd and wbkgd return the integer OK, or a non-negative integer, if
immedok is set.
The header file <curses.h> automatically includes the header files
<stdio.h> and <unctrl.h>.
Note that bkgdset and bkgd may be macros.
curses(3X), curs_addch(3X), curs_outopts(3X)
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