curs_legacy.3x - Linux manual page

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | NOTES | PORTABILITY | SEE ALSO | COLOPHON

curs_legacy(3X)                                              curs_legacy(3X)

NAME         top

       curs_legacy - get curses cursor and window coordinates, attributes

SYNOPSIS         top

       #include <curses.h>

       int getattrs(WINDOW *win);
       int getbegx(WINDOW *win);
       int getbegy(WINDOW *win);
       int getcurx(WINDOW *win);
       int getcury(WINDOW *win);
       int getmaxx(WINDOW *win);
       int getmaxy(WINDOW *win);
       int getparx(WINDOW *win);
       int getpary(WINDOW *win);

DESCRIPTION         top

       These legacy functions are simpler to use than the X/Open Curses
       functions:

       ·   The getattrs function returns the same attribute data as
           wattr_get.

           However, getattrs returns an integer (actually a chtype), while
           wattr_get returns the current color pair in a separate parameter.
           In the wide-character library configuration, color pairs may not
           fit into a chtype, so wattr_get is the only way to obtain the
           color information.

           Because getattrs returns the attributes in a single parameter, it
           would not be possible for an application to distinguish that from
           ERR (a -1).  If the window parameter is null, getattrs returns
           A_NORMAL (zero).

       ·   The getbegy and getbegx functions return the same data as
           getbegyx.

       ·   The getcury and getcurx functions return the same data as getyx.

       ·   The getmaxy and getmaxx functions return the same data as
           getmaxyx.

       ·   The getpary and getparx functions return the same data as
           getparyx.

RETURN VALUE         top

       Except as noted, these functions return an integer, or ERR if the
       window parameter is null.

NOTES         top

       All of these interfaces are provided as macros and functions.  The
       macros are suppressed (and only the functions provided) when
       NCURSES_OPAQUE is defined.  The standard forms such as getyx must be
       implemented as macros, and (in this implementation) are defined in
       terms of the functions described here, to avoid reliance on internal
       details of the WINDOW structure.

PORTABILITY         top

       These functions were supported on Version 7, BSD or System V
       implementations.  None of those implementations checked the window
       parameter.

       The getattrs function and macro are defined to return a (signed)
       integer for compatibility with those implementations although an
       unsigned type would have been more appropriate.

SEE ALSO         top

       curses(3X), curs_getyx(3X), curs_opaque(3X)

COLOPHON         top

       This page is part of the ncurses (new curses) project.  Information
       about the project can be found at 
       ⟨https://www.gnu.org/software/ncurses/ncurses.html⟩.  If you have a
       bug report for this manual page, send it to
       bug-ncurses-request@gnu.org.  This page was obtained from the
       project's upstream Git mirror of the CVS repository
       ⟨git://ncurses.scripts.mit.edu/ncurses.git⟩ on 2018-02-02.  (At that
       time, the date of the most recent commit that was found in the repos‐
       itory was 2018-01-30.)  If you discover any rendering problems in
       this HTML version of the page, or you believe there is a better or
       more up-to-date source for the page, or you have corrections or
       improvements to the information in this COLOPHON (which is not part
       of the original manual page), send a mail to man-pages@man7.org

                                                             curs_legacy(3X)