Creating and Enriching Graphical User Interfaces - Beginning Java 7 - page 648

import java.awt.EventQueue;
import java.awt.GraphicsConfiguration;
import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
import java.awt.Rectangle;

class IsVDE
{

public static void main(String[] args)
{

Runnable r = new Runnable()
{

public void run()
{

test();

}

};
EventQueue.invokeLater(r);

}
static void test()
{

GraphicsEnvironment ge;
ge = GraphicsEnviron-

ment.getLocalGraphicsEnvironment();
GraphicsDevice[] gds = ge.getScreenDevices();
for (GraphicsDevice gd: gds)
{

GraphicsConfiguration[] gcs =

gd.getConfigurations();
for (GraphicsConfiguration gc: gcs)
{

Rectangle rect = gc.getBounds();
if (rect.x != 0 || rect.y != 0)
{

System.out.println("virtual device environ-
ment detected");