my $GuiBuilder = Gtk2::Builder->new ();
 $GuiBuilder->add_from_file('test.glade');

my $text_ip_entry = $GuiBuilder->get_object('text_ip_entry');

my $text_ssid_entry = $GuiBuilder->get_object('text_ssid_entry');

.....

sub on_some_click
{
my $widget=shift @_;
my $userData = shift @_; 

my $text_ip = $text_ip_entry->get_text();

}