[perl-win32-gui-users] How to pass $_ to a subroutine

[Perl Rob]

Hi all,
 
Are you ready for this one? :) Let's see if I can even explain what I'm
trying to do...
 
I'm attempting to dynamically create buttons that use the -onClick option to
go to a subroutine that is passed the name of the button. Why am I doing
this, you ask? Well, since I don't know the name of the button at the time
of its creation, I can't have an OEM event handler for it. Below is a code
snippet that might explain it better. The problem comes on line 7 when I try
to pass the name of the button (stored in $_ ) to the subroutine. I just
can't get $_ to persist when the subroutine is called later: 
 
#############################################
 
foreach ( @button_names ) {
    $main->AddButton(
                   -name    => $_,
                   -size    => [251,35],
                   -pos     => [0,$y],
                   -text    => $_,
                   -onClick => sub { Button_Clicked ( $_ ) },
    );
    ++$y;
}
 
sub Button_Clicked {
     print "Your name is " . $_;
}
 
#############################################
 
There just has to be a way to DWIM, but I've read perlsub over and over
again without figuring it out. How can I pass the name of the button to the
subroutine successfully?
 
Thanks,
Rob