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How do I get the screen size?

by faq_monk (Initiate)
on Oct 08, 1999 at 00:29 UTC ( #713=perlfaq nodetype: print w/replies, xml ) Need Help??

Current Perl documentation can be found at perldoc.perl.org.

Here is our local, out-dated (pre-5.6) version:

If you have Term::ReadKey module installed from CPAN, you can use it to fetch the width and height in characters and in pixels:

    use Term::ReadKey;
    ($wchar, $hchar, $wpixels, $hpixels) = GetTerminalSize();

This is more portable than the raw ioctl, but not as illustrative:

    require 'sys/ioctl.ph';
    die "no TIOCGWINSZ " unless defined &TIOCGWINSZ;
    open(TTY, "+</dev/tty")                     or die "No tty: $!";
    unless (ioctl(TTY, &TIOCGWINSZ, $winsize='')) {
        die sprintf "$0: ioctl TIOCGWINSZ (%08x: $!)\n", &TIOCGWINSZ;
    }
    ($row, $col, $xpixel, $ypixel) = unpack('S4', $winsize);
    print "(row,col) = ($row,$col)";
    print "  (xpixel,ypixel) = ($xpixel,$ypixel)" if $xpixel || $ypixel;
    print "\n";

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[ambrus]: "you are far more likely to be squished between two other dudes" => wait, really? aren't most planes, weighted by people traveling on it, so narrow that there are only two or three seats on each side of the one corridor, so only one third of the people ge
[ambrus]: t squished between two other people?
holli is about to take the first hit since a month and this weed is strong shit. Should my head explode, someone call 911.
[ambrus]: And even when I traveled on a big plane for a long flight, it had 3 seats, then corridor, then 4 seats, then corridor, then 3 seats, so less than half of the people sit between two other dudes.

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