Here is part of a script, basically, creating a 16x16 matrix: 
my $mw = MainWindow->new( -bg=> '#606060', -borderwidth=> 0);
my $size = 40;
my $y = 0;
my $x = 0;
my $h = 3*$size;
for (my $j=0; $j<16; $j++) {
    my $x = 0;
    my $w = 3*$size;
    for (my $i=0; $i<16; $i++) {
        $frames{"$i,$j"} = $mw->Button( -text => ' ', -bg => "#60C8BC"
+, -fg => "#000000", -borderwidth => 1, -anchor => 'w',  );
        $frames{"$i,$j"}->bind('<Button-1>' => sub { &ToggleBox("$i,$j
+"); } );
        $frames{"$i,$j"}->place( -y=>$y, -x=>$x, -width=>$w, -height=>
+$h );
        $x = $x + $w;
        $w = $size;
        $x = $x+2 if ($i % 5 == 0);
    }
    $y = $y + $h;
    $h = $size;
    $y = $y+2 if ($j % 5 == 0);
}

sub ToggleBox {
    my $this = shift;
    print "$x,$y\n";
}

[download]
Whenever I click on a button, it always print "16,16", the last values of $i, $j. How should I pass the values of $i,$j so it passes the value of $i,$j the instant it was iterated? thanks!

In reply to How to pass parameter to a subroutine? by jsteng

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