Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!mit-eddie!media-lab!mit-caf!vlcek
From: vlcek@mit-caf.MIT.EDU (Jim Vlcek)
Newsgroups: comp.unix.aix
Subject: Window size in AIX PS/2 V1.1
Message-ID: <5129@mit-caf.MIT.EDU>
Date: 20 Sep 90 03:53:14 GMT
Reply-To: vlcek@mit-caf.UUCP (Jim Vlcek)
Distribution: na
Organization: Microsystems Technology Laboratories, MIT
Lines: 23

Anyone know a robust way to determine the current window size in AIX
PS/2 V1.1?  This is to get the current dimensions of a resizable xterm
window.  I tried the following snippet:

  if (ioctl(fileno(stdout), TIOCGWINSZ, &win) < 0)
    perror("ioctl");
  else
    printf("ioctl: lines=%d, cols=%d\n", win.ws_row, win.ws_col);

with the following results:

  ioctl: Invalid argument

Using the termcap routines (tgetent, tgetnum) in -lcurses (yes, AIX
puts them there) gives an answer, but it's the static values in the
terminfo data base, and hence doesn't account for window resizing.

/bin/csh on AIX PS/2 also doesn't appear to intercept SIGWINCH;
resizing the window has no effect on the output of "stty everything".
"stty everything" also yields no information on the number of columns,
although stty accepts a "cols" argument.

Jim Vlcek  (vlcek@caf.mit.edu  vlcek@athena.mit.edu)