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sub OK_clicked_cb {
    
...
        print "$entry_text";
        $i++;
    }

sub OK_clicked_cb {

...
        $i++;
    }
}

*** Gtk3::Container::get_children: passed too many parameters (expecte
+d 1, got 2); ignoring excess at my-gui.pl line 40
Gtk3::Entry=HASH(0x8ad5e60) Gtk3::Entry=HASH(0x8bda0e8) Gtk3::Entry=HA
+SH(0x8bda1ec) Gtk3::Entry=HASH(0x8bda084) Gtk3::Label=HASH(0x8b9641c)
192.168.0.2

sub OK_clicked_cb {

...
    print $entry_widgets[3]."\n";
        
}