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Chapter 19. Using the Built-in Core Objects > Introducing Built-in Objects

Introducing Built-in Objects

Built-in objects are the most common means of exposing any sort of Macromedia Flash capability to the ActionScript programmer. Built-in objects are the workhorses of ActionScript, used to accomplish most basic day-to-day tasks, such as manipulating graphics, colors, sounds, keystrokes, and other elements of a Flash movie.

With Flash MX, built-in objects have become pervasive. There is now an object-oriented underpinning for text fields and text formatting, buttons, the Stage, custom additions to the Flash user interface (CustomActions), variables stored in local disk files as “shared objects,” video, variables loaded from servers (LoadVars), local communications channels with other SWFs (LocalConnection), and connections to communications servers and application servers (NetConnection/NetStream).


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