[JAVA][Beginning Java 8 Games Development]

Chapter 4 ■ An Introduction to JavaFX 8: Exploring the Capabilities of the Java 8 Multimedia Engine
This time, you are going to call the .setBackground(Background value) method, with yet another Background
class (object) constant, EMPTY. As Figure 4-8 illustrates, NetBeans will help you find the constant once you call the
method off the StackPane object named root, using the following Java statement: root.setBackground(Background.
EMPTY);. NetBeans provides a method selector drop-down and, once you select a method, an information dialog
showing you the origin (superclass) of the method as well as what it does and an in-depth description. In this
case, null (nothing), or zero Color fill, or zero Image set equates to TRANSPARENT. You are now ready to test your
windowless (transparent) application version by using the run project work process.
Figure 4-8. Call a .setBackground() method with a Background.EMPTY constant, off the StackPane object named root
As you can see in Figure 4-9, you have now achieved your objective, and just the Button object is visible on the
desktop. I pulled the top of NetBeans IDE 8.0 down a bit so that you can see how great this works and still see the
three lines of Java code that you added to achieve this end result. Using 2D, 3D, and alpha channels, some crazy-cool
applications can be created via this StageStyle.TRANSPARENT capability, so I thought I would show it to you early on
in the book and get some JavaFX application Java coding experience into this JavaFX overview chapter.
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