> GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().getAvailableAcceleratedMemory()
> 

> [I] OS Version = OS_WINXP Pro
> [I] CheckAdaptersInfo
> [I] ------------------
> [I] Adapter Ordinal  : 0
> [I] Adapter Handle   : 0x10001
> [I] Description      : NVIDIA GeForce2 MX/MX 400 (Microsoft Corporation)
> [I] GDI Name, Driver : \\.\DISPLAY1, nv4_disp.dll
> [I] Vendor Id        : 0x10de
> [I] Device Id        : 0x0110
> [I] SubSys Id        : 0x88171462
> [I] Driver Version   : 6.14.10.5673
> [I] GUID             : {D7B71E3E-4250-11CF-FB61-1DA813C2CB35}
> [E] D3DPPLM::CheckDeviceCaps: adapter 0: Failed (pixel shaders 2.0 required)
> [I] ------------------
> [E] D3DPPLM::CheckAdaptersInfo: no suitable adapters found
> [E] InitD3D: failed to init adapters
> 

> public class NonOpaqueWindowPerformanceTest extends JFrame
> {
>   public NonOpaqueWindowPerformanceTest()
>   {
>     super();    
>     setLayout(new BorderLayout());
> 
>     JPanel p = new JPanel();
>     p.setBorder(new LineBorder(Color.GREEN));
>     p.setBackground(Color.RED);
>     p.setOpaque(true);
> 
>     final JPanel p2 = new JPanel();
>     p2.setOpaque(true);
>     p2.setBorder(new LineBorder(Color.blue));
>     p2.setPreferredSize(new Dimension(300,300));    
>     p.add(p2);
>     
>     add(p);
>     //remarking the following line means 90% less CPU-utilization on Windows XP
>     setWindowNonOpaque(this);
>     
>     setTitle(getClass().getSimpleName());
>     setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
>     setSize(800, 600);    
>     setLocationRelativeTo(null);
>     setVisible(true);
>     
>     new Thread(){
>       public void run()
>       {
>         while (true)
>         {  
>           try
>           {
>             Thread.sleep(50);
>           }
>           catch (InterruptedException e)
>           {
>             e.printStackTrace();
>           }
> 
>           EventQueue.invokeLater(new Runnable()
>           {
>             public void run()
>             {
>               Color color = new Color(new Random().nextInt(0xFFFFFF));
>               p2.setBackground(color);
>             }      
>           });
>         }
>       }      
>     }.start();
>   }
>   
>   private void setWindowNonOpaque(Window w)
>   {
>     try 
>     {
>       Class<?> c = Class.forName("com.sun.awt.AWTUtilities");
>       Method m = c.getMethod("setWindowOpaque", Window.class, boolean.class);
>       m.invoke(null, w, false);
>     } 
>     catch (Exception e) 
>     {
>       e.printStackTrace();
>     }    
>   }
> 
>   public static void main(String[] args) throws Exception
>   {
>     EventQueue.invokeLater(new Runnable(){
>       public void run()
>       {
>         JFrame.setDefaultLookAndFeelDecorated(true);
>         new NonOpaqueWindowPerformanceTest();
>       }      
>     });
>   }  
> }
>