func OffscreenWindowNew() (*OffscreenWindow, error) {
	c := C.gtk_offscreen_window_new()
	if c == nil {
		return nil, nilPtrErr
	}
	return wrapOffscreenWindow(glib.Take(unsafe.Pointer(c))), nil
}
func OffscreenWindowNew() (*OffscreenWindow, error) {
	c := C.gtk_offscreen_window_new()
	if c == nil {
		return nil, nilPtrErr
	}
	return wrapOffscreenWindow(glib.Take(unsafe.Pointer(c))), nil
}
// OffscreenWindowNew is a wrapper around gtk_offscreen_window_new().