Depends on if you mean the text of a hash key or not. You could maybe want to Dump the hash with Data::Dumper. The following shows both:
#!/usr/bin/perl
use strict;
use warnings;
use Data::Dumper;
use Tk 800;
+
my %hash = (
key1 => 'value1',
key2 => 'value2',
);
+
my $mw = Tk::MainWindow->new();
my $label_with_hash_key = $mw->Label(
-text => $hash{key1},
)->pack();
my $label_with_hash_dump = $mw->Label(
-text => Dumper(\%hash),
)->pack();
my $button = $mw->Button(
-text => 'Quit',
-command => sub { exit; },
)->pack();
$mw->geometry('=320x240+120+1');
$mw->MainLoop();
cp
----
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