osf1 man page for bkgd

curs_bkgd(3)						     Library Functions Manual						      curs_bkgd(3)

NAME
       curs_bkgd, bkgd, wbkgd, bkgdset, wbkgdset, getbkgd - Routines for manipulating the background in a Curses window

SYNOPSIS
       #include <curses.h>

       int bkgd(
	       chtype ch ); int wbkgd(
	       WINDOW *win,
	       chtype ch ); void bkgdset(
	       chtype ch ); voidwbkgdset(
	       WINDOW *win,
	       chtype ch ); chtypegetbkgd(
	       WINDOW *win );

LIBRARY
       Curses Library (libcurses)

STANDARDS
       Interfaces documented on this reference page conform to industry standards as follows:

       bkgd, wbkgd, bkgdset, wbkgdset, getbkgd:  XCURSES4.2

       Refer to the standards(5) reference page for more information about industry standards and associated tags.

DESCRIPTION
       The bkgdset and wbkgdset routines manipulate the background of the named window. Background is defined as chtype and consists of any combi-
       nation of attributes and a character.  The attribute part of the background is combined (by using an inclusive OR operation) with all  non-
       blank  characters  that waddch writes into the window. 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 nonblank 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  rendi-
       tion of the character put on the screen.

       The getbkgd routine returns the background character and attributes, encoded in a chtype data element, for the specified window.

NOTES
       The header file <curses.h> automatically includes the header file <stdio.h>.

       Note that bkgdset and bkgd may be macros.

RETURN VALUES
       The bkgd and wbkgd routines return OK on success or ERR on failure.

       The wbkgdset and wbkgdset routines have no return value.

       The getbkgd routine returns the background character and its rendition on success or ERR on failure.

SEE ALSO
       Functions: curses(3), curs_addch(3), curs_bkgrnd(3), curs_outopts(3)

       Others: standards(5)

																      curs_bkgd(3)