abstract public  void flush()

 public float getAccelerationPriority() 
{
        return accelerationPriority;
}

 public ImageCapabilities getCapabilities(GraphicsConfiguration gc) 
{
        // Note: common image is not accelerated.
        return capabilities;
}

 abstract public Graphics getGraphics()

 abstract public int getHeight(ImageObserver observer)

 abstract public Object getProperty(String name,
    ImageObserver observer)

 public Image getScaledInstance(int width,
    int height,
    int hints) 
{
        ImageFilter filter;
        if ((hints & (SCALE_SMOOTH | SCALE_AREA_AVERAGING)) != 0) {
            filter = new AreaAveragingScaleFilter(width, height);
        } else {
            filter = new ReplicateScaleFilter(width, height);
        }
        ImageProducer producer = new FilteredImageSource(getSource(), filter);
        return Toolkit.getDefaultToolkit().createImage(producer);
}

 abstract public ImageProducer getSource()

 abstract public int getWidth(ImageObserver observer)

 public  void setAccelerationPriority(float priority) 
{
        if (priority <  0 || priority  > 1) {
            // awt.10A=Priority must be a value between 0 and 1, inclusive
            throw new IllegalArgumentException(Messages.getString("awt.10A")); //$NON-NLS-1$
        }
        accelerationPriority = priority;
}