3.0. Introduction
Flash Player 9 offers a relatively large amount of
information about and control over the runtime environment. The
flash.system.Capabilities class
has many static methods that return information about the player
and the computer on which it is running, such as the operating
system, language, audio, and video capabilities. There are other
classes such as flash.display.Stage and
flash.system.Security
that allow you to control other elements of the Player such as the
right-click menu under Windows (Control-click on the Macintosh) and
the Settings dialog box. The flash.display.Stage class also
controls the scaling and alignment of the movie within the
Player.
Perhaps one of the most significant updates to
Flash Player 7 within this chapter's subject matter is the ability
to work with the context menu with more detail and precision than
was allowed in previous versions of the player. In Flash Player 7,
using the ContextMenu
class, you can programmatically remove items from the context menu,
and perhaps more importantly, you can add items to the menu. And as
the name suggests, you can make the context menu so it is actually
contextual, so that items in the menu are based on the object on
which the menu is being displayed.
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