Command Section
curs_getyx(3X)                                                  curs_getyx(3X)

       getyx, getparyx, getbegyx, getmaxyx - get curses cursor and window

       #include <curses.h>

       void getyx(WINDOW *win, int y, int x);
       void getparyx(WINDOW *win, int y, int x);
       void getbegyx(WINDOW *win, int y, int x);
       void getmaxyx(WINDOW *win, int y, int x);

       The getyx macro places the current cursor position of the given window
       in the two integer variables y and x.

       If win is a subwindow, the getparyx macro places the beginning
       coordinates of the subwindow relative to the parent window into two
       integer variables y and x.  Otherwise, -1 is placed into y and x.

       Like getyx, the getbegyx and getmaxyx macros store the current
       beginning coordinates and size of the specified window.

       The return values of these macros are undefined (i.e., they should not
       be used as the right-hand side of assignment statements).

       All of these interfaces are macros.  A "&" is not necessary before the
       variables y and x.

       The getyx, getparyx, getbegyx and getmaxyx macros are described in the
       XSI Curses standard, Issue 4.

       This implementation also provides functions getbegx, getbegy, getcurx,
       getcury, getmaxx, getmaxy, getparx and getpary for compatibility with
       older versions of curses.

       Although X/Open Curses does not address this, many implementations
       provide members of the WINDOW structure containing values corresponding
       to these macros.  For best portability, do not rely on using the data
       in WINDOW, since some implementations make WINDOW opaque (do not allow
       direct use of its members).

       Besides the problem of opaque structures, the data stored in like-named
       members may not have like-values in different implementations.  For
       example, the WINDOW._maxx and WINDOW._maxy values in ncurses have (at
       least since release 1.8.1) differed by one from some other
       implementations.  The difference is hidden by means of the macro

       curses(3X), curs_legacy(3X), curs_opaque(3X)

Command Section