I think the $self->{contents} IS being passed, but is not consumed in the anon sub.

Try: 

$self->{txt_box}=txt_box->new(
   $self->{frm}, 
   sub {$self->updt(@_)} # Pass incoming parms along.
);

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In reply to Re: unable to call a method reference with an argument by NetWallah
in thread unable to call a method reference with an argument by previous

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