gtk/text_view.go
func (v *TextView) GetWindow(win TextWindowType) *gdk.Window {
	c := C.gtk_text_view_get_window(v.native(), C.GtkTextWindowType(win))
	if c == nil {
		return nil
	}
	return &gdk.Window{glib.Take(unsafe.Pointer(c))}
}
func (v *TextView) GetWindow(win TextWindowType) *gdk.Window {
	c := C.gtk_text_view_get_window(v.native(), C.GtkTextWindowType(win))
	if c == nil {
		return nil
	}
	return &gdk.Window{glib.Take(unsafe.Pointer(c))}
}
// GetWindow is a wrapper around gtk_text_view_get_window().