Yes, it is possible. The following code reads the keycode:

use strict;
use warnings;
use Tk;

my $name;
my $mw = MainWindow->new();
my $entry = $mw->Entry(
    -textvariable => \$name
    )->pack();

$mw->bind("<KeyRelease>" => sub {
    warn $_[0]->XEvent->k; 
});

$mw->MainLoop();
exit(0);
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I should then mimic the combination of Ctrl+C/V, and the copy and paste rutines. I am not sure if this is the way to go, but at the moment it seems the only alternative to use copy and paste in Tk with all (?) keyboard layouts.