>> 2) What I do with the data will obviously depend on the program using
>> my
>> object, but would probably be things like update the screen (Term, TK,
>> Win32), or to send instructions to a control system (e.g. throw points
>> on
>> model railway).
>>
>> What is the best method to pass control back to the program from
>> within a
>> method?
>
> I don't think I understand this question. The obvious answer to me is
> return (exit the method). Control will pass back to the caller at this
> point, as it always does. If I misunderstood, please try explaining it
> again.
I expect you are looking for callbacks here. The caller passes in a sub
(reference) which you call from within the method.
$obj->meth(sub { my ($oomph, $time) = @_; print "Oomph is $oomph at $time" })
and in the module
sub meth
{
my $self = shift;
my ($callback) = @_;
my ($oomph, $time) = ...
$callback->($oomph, $time);
}
--
Paul Johnson - [EMAIL PROTECTED]
http://www.pjcj.net
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