Try passing your array as a ref to your sub: 

my @info;
my $button_submit = $lf->Button(
    -text => 'Search',
    -command => [\&get_data, \@info],
)->pack(qw//);

[download]
...this should pass the \@info ref into your get_data sub. You can also add your Tk widget as another parameter and call configure on that ref. 
my @info;
my $button_submit = $lf->Button(
    -text => 'Search',
    -command => [\&get_data, \@info, $TkWidget],
)->pack(qw//);
...
sub get_data {
    my ($info_ref, $tkwidget_ref) = @_;

    # add/delete/modify elements of $info_ref

    # call configure on the widget
    $tkwidget_ref->configure(...);
}

[download]

This is the method I use when I want to modify a data structure using a callback.

--
hiseldl
What time is it? It's Camel Time!

In reply to Re: Tk/Perl Command by hiseldl
in thread Tk/Perl Command by £okì

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