Free Knowledge Resources


Linux Manual Pages


Free Software * Books

Source Code

Free Media

Linux

opaque(3ncurses)


NAME

   is_cleared, is_idlok, is_idcok, is_immedok, is_keypad, is_leaveok,
   is_nodelay, is_notimeout, is_pad, is_scrollok, is_subwin, is_syncok,
   wgetdelay, wgetparent, wgetscrreg - curses window properties

SYNOPSIS

   #include <curses.h>

   bool is_cleared(const WINDOW *win);
   bool is_idcok(const WINDOW *win);
   bool is_idlok(const WINDOW *win);
   bool is_immedok(const WINDOW *win);
   bool is_keypad(const WINDOW *win);
   bool is_leaveok(const WINDOW *win);
   bool is_nodelay(const WINDOW *win);
   bool is_notimeout(const WINDOW *win);
   bool is_pad(const WINDOW *win);
   bool is_scrollok(const WINDOW *win);
   bool is_subwin(const WINDOW *win);
   bool is_syncok(const WINDOW *win);
   WINDOW * wgetparent(const WINDOW *win);
   int wgetdelay(const WINDOW *win);
   int wgetscrreg(const WINDOW *win, int *top, int *bottom);

DESCRIPTION

   This  implementation  provides functions which return properties set in
   the WINDOW  structure,  allowing  it  to  be  "opaque"  if  the  symbol
   NCURSES_OPAQUE is defined:

   is_cleared
        returns the value set in clearok

   is_idcok
        returns the value set in idcok

   is_idlok
        returns the value set in idlok

   is_immedok
        returns the value set in immedok

   is_keypad
        returns the value set in keypad

   is_leaveok
        returns the value set in leaveok

   is_nodelay
        returns the value set in nodelay

   is_notimeout
        returns the value set in notimeout

   is_pad
        returns TRUE if the window is a pad i.e., created by newpad

   is_scrollok
        returns the value set in scrollok

   is_subwin
        returns TRUE if the window is a subwindow, i.e., created by subwin
        or derwin

   is_syncok
        returns the value set in syncok

   wgetdelay
        returns the delay timeout as set in wtimeout.

   wgetparent
        returns the parent WINDOW pointer  for  subwindows,  or  NULL  for
        windows having no parent.

   wgetscrreg
        returns the top and bottom rows for the scrolling margin as set in
        wsetscrreg.

RETURN VALUE

   These functions all return TRUE or FALSE, except as noted.

NOTES

   Both a macro and a function are provided for each name.

PORTABILITY

   These routines are specific to ncurses.  They  were  not  supported  on
   Version 7, BSD or System V implementations.  It is recommended that any
   code   depending   on   ncurses   extensions   be   conditioned   using
   NCURSES_VERSION.

SEE ALSO

   ncurses(3NCURSES),         inopts(3NCURSES),         outopts(3NCURSES),
   window(3NCURSES)

                                                          opaque(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.


birds banner