I would see codes written like this:
$submit->bind('<1>' => sub { Submit($p1, $p2, $p3, $p4, $p5); } );

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The above codes I understand, knowing how many parameters and how to intercept the params in a subroutine.



However I dont understand this code:
$yscroll=$mw->Scrollbar()->pack(-fill=>'y', -side=>'right',);
$yscroll->configure( -command => [ \&ScrollAll, $yscroll, [$p1, $p2, $
+p3, $p4, $p5]]);
sub ScrollAll {
    my ($sb, $wigs, @args) = @_;
        foreach my $w (@$wigs) {
            $w->yview(@args);
        }
}

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Can anyone explain how the params are passed when it is constructed in this manner:
-command => [ \&ScrollAll, $yscroll, [$p1, $p2, $p3, $p4, $p5]]
In the above sub's code my ($sb, $wigs, @args) = @_;
What is assigned to $sb?
What is assigned to $wigs?
Is there any other way of passing params when used with -command?
And can that like be written like: 
-command => sub {
    subname ($p1, $p2, $p3, $p4, $p5); 
}

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thanks

In reply to TK param passing by jsteng

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