All you need do is make sure PDFColumn and $page share the same namespace, either by declaring your sub into PDF::Create's ...

sub PDF::Create::PDFColumn {
   my $page   = shift;
   my $params = shift;

   # ...
}

[download]

... or (more elegantly) by sub-classing ...

package PDF::Create::Column;

  # Try looking for any methods not defined here 
  # in PDF::Create instead.
use base qw/ PDF::Create /;

sub PDFColumn {
   my $page   = shift;
   my $params = shift;

   # ...
}

1;

[download]

    --k.


In reply to Re: Making a function callable on an object by Kanji
in thread Making a function callable on an object by George_Sherston

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