gtk/window.go
func WindowNew(t WindowType) (*Window, error) {
	c := C.gtk_window_new(C.GtkWindowType(t))
	if c == nil {
		return nil, nilPtrErr
	}
	return wrapWindow(glib.Take(unsafe.Pointer(c))), nil
}
func WindowNew(t WindowType) (*Window, error) {
	c := C.gtk_window_new(C.GtkWindowType(t))
	if c == nil {
		return nil, nilPtrErr
	}
	return wrapWindow(glib.Take(unsafe.Pointer(c))), nil
}
// WindowNew is a wrapper around gtk_window_new().