diff --git a/example/example-gui.go b/example/example-gui.go
index 499c365..90fffaa 100644
--- a/example/example-gui.go
+++ b/example/example-gui.go
@@ -11,14 +11,14 @@ import (
 func main() {
 	gtk.Init(&os.Args)
 
-	window := gtk.Window(gtk.GTK_WINDOW_TOPLEVEL)
+	window := gtk.NewWindow(gtk.WINDOW_TOPLEVEL)
 	window.SetTitle("GoTalk")
 	window.Connect("destroy", func() {
 		gtk.MainQuit()
 	})
-	vbox := gtk.VBox(false, 1)
-	scrolledwin := gtk.ScrolledWindow(nil, nil)
-	textview := gtk.TextView()
+	vbox := gtk.NewVBox(false, 1)
+	scrolledwin := gtk.NewScrolledWindow(nil, nil)
+	textview := gtk.NewTextView()
 	textview.SetEditable(false)
 	textview.SetCursorVisible(false)
 	scrolledwin.Add(textview)
@@ -26,44 +26,44 @@ func main() {
 
 	buffer := textview.GetBuffer()
 
-	entry := gtk.Entry()
+	entry := gtk.NewEntry()
 	vbox.PackEnd(entry, false, false, 0)
 
 	window.Add(vbox)
 	window.SetSizeRequest(300, 400)
 	window.ShowAll()
 
-	dialog := gtk.Dialog()
+	dialog := gtk.NewDialog()
 	dialog.SetTitle(window.GetTitle())
-	sgroup := gtk.SizeGroup(gtk.GTK_SIZE_GROUP_HORIZONTAL)
+	sgroup := gtk.NewSizeGroup(gtk.SIZE_GROUP_HORIZONTAL)
 
-	hbox := gtk.HBox(false, 1)
+	hbox := gtk.NewHBox(false, 1)
 	dialog.GetVBox().Add(hbox)
-	label := gtk.Label("username:")
+	label := gtk.NewLabel("username:")
 	sgroup.AddWidget(label)
 	hbox.Add(label)
-	username := gtk.Entry()
+	username := gtk.NewEntry()
 	hbox.Add(username)
 
-	hbox = gtk.HBox(false, 1)
+	hbox = gtk.NewHBox(false, 1)
 	dialog.GetVBox().Add(hbox)
-	label = gtk.Label("password:")
+	label = gtk.NewLabel("password:")
 	sgroup.AddWidget(label)
 	hbox.Add(label)
-	password := gtk.Entry()
+	password := gtk.NewEntry()
 	password.SetVisibility(false)
 	hbox.Add(password)
 
-	dialog.AddButton(gtk.GTK_STOCK_OK, int(gtk.GTK_RESPONSE_OK))
-	dialog.AddButton(gtk.GTK_STOCK_CANCEL, int(gtk.GTK_RESPONSE_CANCEL))
-	dialog.SetDefaultResponse(int(gtk.GTK_RESPONSE_OK))
+	dialog.AddButton(gtk.STOCK_OK, int(gtk.RESPONSE_OK))
+	dialog.AddButton(gtk.STOCK_CANCEL, int(gtk.RESPONSE_CANCEL))
+	dialog.SetDefaultResponse(int(gtk.RESPONSE_OK))
 	dialog.SetTransientFor(window)
 	dialog.ShowAll()
 	res := dialog.Run()
 	username_ := username.GetText()
 	password_ := password.GetText()
 	dialog.Destroy()
-	if res != int(gtk.GTK_RESPONSE_OK) {
+	if res != gtk.RESPONSE_OK {
 		os.Exit(0)
 	}
 
@@ -93,7 +93,7 @@ func main() {
 					log.Fatal(err)
 				}
 
-				var iter gtk.GtkTextIter
+				var iter gtk.TextIter
 				buffer.GetStartIter(&iter)
 				buffer.Insert(&iter, chat.Remote+": "+chat.Text+"\n")
 			}()