Yes, You can use JavaScript.

Here's what I have in mind:

#!/usr/bin/perl
use strict;
use warnings;
use CGI;

my $q = CGI->new;
print $q->header;

if ($q->param) {
    my $W = $q->param('w');
    my $H = $q->param('h');
    print "Screen resolution is: $W X $H\n";
}

print <<HTML;
<html>
<head><title>Test Page</title>
<script language="javascript">
    function GetRes() {
        document.getElementById('w').value = screen.width;
        document.getElementById('h').value = screen.height;
    }
</script>
</head>
<body>
<form method="post" OnSubmit="GetRes();">
<input type="hidden" name="w" id="w" value="">
<input type="hidden" name="h" id="h" value="">
<input type="submit" value="Get Resolution">
</form>
</body>
</html>

HTML

[download]

But keep in mind that some people have Javascript disabled so you'll have to set a default W/H in case the hidden fields were empty.

And finally you'll have to do some verifications to make sure you are actually getting a valid resolution or whatever you want to call it.

In reply to Re: browser metrics by ahmad
in thread browser metrics by PriNet

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