X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=doc%2Fhtml%2Fman%2Fcurs_getyx.3x.html;h=22b3aec6b15372817a27a17130500c9f4e89266d;hp=796528f82b777489eb3f0a7d67f60ea45f0689b8;hb=ca276baf720e3a44721b9e18955d3f546955c6c8;hpb=4e6cadb948fd73686614442733848fe271e5d7b2 diff --git a/doc/html/man/curs_getyx.3x.html b/doc/html/man/curs_getyx.3x.html index 796528f8..22b3aec6 100644 --- a/doc/html/man/curs_getyx.3x.html +++ b/doc/html/man/curs_getyx.3x.html @@ -1,7 +1,7 @@ @@ -94,17 +94,29 @@ The getyx, getparyx, getbegyx and getmaxyx macros are described in the XSI Curses standard, Issue 4. - This implementation also provides getbegx, getbegy, - getcurx, getcury, getmaxx, getmaxy, getparx and getpary - for compatibility with older versions of curses. X/Open - does not define a corresponding getcuryx function, though - that would be needed to make references to the WINDOW - structure opaque. + This implementation also provides functions getbegx, getb- + egy, getcurx, getcury, getmaxx, getmaxy, getparx and get- + pary for compatibility with older versions of curses. + + Although X/Open Curses does not address this, many imple- + mentations provide members of the WINDOW structure con- + taining 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 differ- + ent 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 implementa- + tions. The difference is hidden by means of the macro + getmaxyx.

SEE ALSO

-       curses(3x)
+       curses(3x), curs_legacy(3x), curs_opaque(3x)