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Re: _maxy AND _maxx

From: Thomas Dickey
Subject: Re: _maxy AND _maxx
Date: Thu, 23 Feb 2006 18:20:54 -0500 (EST)

On Wed, 22 Feb 2006, Bryan Christ wrote:

According to the ncurses.h documentation of struct _win_st, _maxx and _maxy are not the size of the window. However, in all my experiments, these coordinates do correlate to the window size. Can someone explain how there would ever be a case were _maxx does not represent window width or _maxy does not represent window height?

~~ fron ncurses.h ~~

NCURSES_SIZE_T _maxy, _maxx; /* maximums of x and y, NOT window size */

ncurses uses _maxx/_maxy consistently as the maximum x and y indices
respectively.  For instance

            for (j = 0; j <= win->_maxx; j++)
                win->_line[line].text[j] = blank;

The actual width and height of the window would be one more than the
maximum indices because they are zero-based.

Thomas E. Dickey

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