получить curses курсор и координаты окна (get curses cursor and window coordinates)
Имя (Name)
getyx, getparyx, getbegyx, getmaxyx - get curses cursor and
window coordinates
Синопсис (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);
Описание (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.
Возвращаемое значение (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).
Примечание (Note)
All of these interfaces are macros. A "&" is not necessary
before the variables y and x.
Портативность (Portability)
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 getmaxyx.
Смотри также (See also)
curses(3X), curs_legacy(3X), curs_opaque(3X)
