protected Surface _createSurface(Box b, boolean framed) { return null; }
protected Picture _createPicture(JS r) { return null; }
protected PixelBuffer _createPixelBuffer(int w, int h, Surface owner) { return null; }
protected Surface _createSurface(Box b, boolean framed) { return null; }
protected Picture _createPicture(JS r) { return null; }
protected PixelBuffer _createPixelBuffer(int w, int h, Surface owner) { return null; }