curs_getyx(3) Library calls curs_getyx(3)
NAME
getyx, getparyx, getbegyx, getmaxyx - get curses cursor and window
coordinates
SYNOPSIS
#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);
DESCRIPTION
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.
RETURN VALUE
The return values of these macros are undefined (i.e., they should not
be used as the right-hand side of assignment statements).
NOTES
All of these interfaces are macros. A "&" is not necessary before the
variables y and x.
PORTABILITY
The getyx, getparyx, getbegyx and getmaxyx macros are described in
X/Open Curses, Issue 4.
This implementation also provides functions getbegx, getbegy, getcurx,
getcury, getmaxx, getmaxy, getparx and getpary for compatibility with
older versions of curses; see curs_legacy(3X).
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
getmaxyx.
SEE ALSO
curses(3X), curs_legacy(3X), curs_opaque(3X)
ncurses 6.5 2024-04-20 curs_getyx(3)
ncurses 6.5 - Generated Sat May 4 18:15:35 CDT 2024