Tk returns from a sub

Scarborough has asked for the wisdom of the Perl Monks concerning the following question:

In Tk I have this command

    my $get_button = $mw->Button(-text=>'Get Parameters', -command=>[\
+&get_params, \$job_name])->pack;
[download]

This works fine but &get_params returns an array, where does the array end up or can't I do this.

I may be missing something here.

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Re: Tk returns from a sub by matija (Priest) on Sep 13, 2004 at 14:45 UTC
`command` will call `&get_params` in a void context. That means the array it returns will end up in the great write-only bitbucket in the sky. Yes, you can do that, no damage done - unless you need the contents of that array. In that case, you will need to make other arrangements.	[reply] [d/l]
Re^2: Tk returns from a sub by Scarborough (Hermit) on Sep 13, 2004 at 14:54 UTC
I think thats where I go in my nightmares - the great write-only bitbucket in the sky. I've now changed things to take an extra parameter a ref to an array and load that up in the sub. Thanks for your help.	[reply]