getbkgrnd(3ncurses)


NAME

   bkgrnd,  wbkgrnd, bkgrndset, wbkgrndset, getbkgrnd, wgetbkgrnd - curses
   window complex background manipulation routines

SYNOPSIS

   #include <curses.h>

   int bkgrnd( const cchar_t *wch);
   int wbkgrnd( WINDOW *win, const cchar_t *wch);
   void bkgrndset(const cchar_t *wch );
   void wbkgrndset(WINDOW *win, const cchar_t *wch);
   int getbkgrnd(cchar_t *wch);
   int wgetbkgrnd(WINDOW *win, cchar_t *wch);

DESCRIPTION

   bkgrndset
   The bkgrndset and wbkgrndset routines manipulate the background of  the
   named  window.   The  window  background is a cchar_t consisting of any
   combination of attributes (i.e., rendition) and  a  complex  character.
   The  attribute part of the background is combined (OR'ed) 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.

   bkgrnd
   The bkgrnd and wbkgrnd functions set the  background  property  of  the
   current  or  specified  window  and  then  apply  this setting to every
   character position in that window:

   ·   The rendition of every character on the screen is  changed  to  the
       new background rendition.

   ·   Wherever  the former background character appears, it is changed to
       the new background character.

   getbkgrnd
   The getbkgrnd function returns the given  window's  current  background
   character/attribute pair via the wch pointer.

NOTES

   Note that bkgrnd, bkgrndset, and getbkgrnd may be macros.

RETURN VALUE

   The bkgrndset and wbkgrndset routines do not return a value.

   Upon  successful completion, the other functions return OK.  Otherwise,
   they return ERR.  A null window pointer is treated as an error.

SEE ALSO

   ncurses(3NCURSES), bkgd(3NCURSES)

                                                          bkgrnd(3NCURSES)





Opportunity


Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.

Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.





Free Software


Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.


Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.





Free Books


The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.


Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.





Education


Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.


Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.