This should be a separate node, but here is the modifed code:
use Tk;
use strict; use warnings;
my $mw = MainWindow->new();
#This creates the widget and place it:
my $Entry2 = $mw->Entry(
-relief => "sunken"
);
#$Entry2->place( -x => 88, -y => 33, -height => 16, -width => 120);
$Entry2->pack(-side=>'left');
$Entry2->focus();
# And I have a button that calls the sub that does the trick:
my $Button3 = $mw->Button(
-text => "Cadastrar",
-relief => "raised",
-command => \&add
);
#$Button3->place( -x => 218, -y => 33, -height => 16, -width => 56);
$Button3->pack(-side=>'right');
# The above parts works as expected, my problem lies below
#(notice that the snippet below is, obviously, after the MainLoop):
MainLoop();
sub add
{
my $name = $Entry2->get();
print "name=$name\n";
#my $file = "data.dat";
#
#open(CLIST, "+>>$file");
#flock(CLIST,2);
#print CLIST $name."\n";
#flock(CLIST,8);
#close($file);
}