Top-level classes

The top level contains the ActionScript classes and global functions, many of which provide core functionality for your applications. Core classes, borrowed directly from ECMAScript, include Array, Boolean, Date, Error, Function, Math, Number, Object, String, and System. To find more information on each class, see the following table.

NOTE

The CustomActions and XMLUI classes are available only in the Flash authoring environment.

Class	Description
Accessibility	The Accessibility class manages communication between SWF files and screen reader applications. You use the methods of this class with the global `_accProps` property to control accessible properties for movie clips, buttons, and text fields at runtime. See Accessibility.
Array	The Array class represents arrays in ActionScript and all array objects are instances of this class. The Array class contains methods and properties for working with array objects. See Array.
AsBroadcaster	Provides event notification and listener management capabilities that can be added to other objects. See AsBroadcaster.
Boolean	The Boolean class is a wrapper for Boolean (`true` or `false`) values. See Boolean.>.
Button	The Button class provides methods, properties, and event handlers for working with buttons. See Button. Note that the built-in Button class is different from the Button component class, associated with the version 2 component, Button.
Camera	The Camera class provides access to the user's camera, if one is installed. When used with Flash Media Server, your SWF file can capture, broadcast, and record images and video from a user's camera. See Camera.
Color	The Color class lets you set the RGB color value and color transform of movie clip instances and retrieve those values after you set them. The Color class is deprecated in Flash Player 8 in favor of the ColorTransform class. For information on color transforms, see ColorTransform (flash.geom.ColorTransform).
ContextMenu	The ContextMenu class lets you control the contents of the Flash Player context menu at runtime. You can associate separate ContextMenu objects with MovieClip, Button, or TextField objects by using the `menu` property available to those classes. You can also add custom menu items to a ContextMenu object by using the ContextMenuItem class. See ContextMenu.
ContextMenuItem	The ContextMenuItem class lets you create new menu items that appear in the Flash Player context menu. You add new menu items that you create with this class to the Flash Player context menu by using the ContextMenu class. See ContextMenuItem.
CustomActions	The CustomActions class lets you manage any custom actions that are registered with the authoring tool. See CustomActions.
Date	The Date class shows how dates and times are represented in ActionScript, and it supports operations for manipulating dates and times. The Date class also provides the means for obtaining the current date and time from the operating system. See Date.
Error	The Error class contains information about runtime errors that occur in your scripts. You typically use the `throw` statement to generate an error condition, which you can handle using a `try..catch..finally` statement. See Error.
Function	The Function class is the class representation of all ActionScript functions, including those native to ActionScript and those that you define. See Function.
Key	The Key class provides methods and properties for getting information about the keyboard and key presses. See Key.
LoadVars	The LoadVars class lets you transfer variables between a SWF file and a server in name-value pairs. See LoadVars.
LocalConnection	The LocalConnection class lets you develop SWF files that send instructions to each other without using the `fscommand()` method or JavaScript. See LocalConnection.
Math	The Math class provides convenient access to common mathematical constants and provides several common mathematical functions. All the properties and methods of the Math class are static and must be called with the syntax `Math.method(parameter)` or `Math.constant`. See Math.
Microphone	The Microphone class provides access to the user's microphone, if one is installed. When used with Flash Media Server, your SWF file can broadcast and record audio from a user's microphone. See Microphone.
Mouse	The Mouse class provides control over the mouse in a SWF file; for example, this class lets you hide or show the mouse pointer. See Mouse.
MovieClip	Every movie clip in a SWF file is an instance of the MovieClip class. You use the methods and properties of this class to control movie clip objects. See MovieClip.
MovieClipLoader	This class lets you implement listener callbacks that provide status information while SWF, JPEG, GIF, and PNG files load into movie clip instances. See MovieClipLoader.
NetConnection	The NetConnection class establishes a local streaming connection for playing a Flash Video (FLV) file from an HTTP address or from the local file system. See NetConnection.
NetStream	The NetStream class controls playback of FLV files from a local file system or HTTP address. See NetStream.
Number	The Number class is a wrapper for the primitive number data type. See Number.
Object	The Object class is at the root of the ActionScript class hierarchy; all other classes inherit its methods and properties. See Object.
PrintJob	The PrintJob class lets you print content from a SWF file, including content that is rendered dynamically, and multipage documents. See PrintJob.
Selection	The Selection class lets you set and control the text field in which the insertion point is located (the text field that has focus). See Selection.
SharedObject	The SharedObject class offers persistent local data storage on the client computer, similar to cookies. This class offers real-time data sharing between objects on the client's computer. See SharedObject.
Sound	The Sound class provides control over sounds in a SWF file. See Sound.
Stage	The Stage class provides information about a SWF file's dimensions, alignment, and scale mode. It also reports Stage resize events. See Stage.
String	The String class is a wrapper for the string primitive data type, which lets you use the methods and properties of the String object to manipulate primitive string value types. See String.
System	The System class provides information about Flash Player and the system on which Flash Player is running (for example, screen resolution and current system language). It also lets you show or hide the Flash Player Settings panel and modify SWF file security settings. See System.
TextField	The TextField class provides control over dynamic and input text fields, such as retrieving formatting information, invoking event handlers, and changing properties such as alpha or background color. See TextField.
TextFormat	The TextFormat class lets you apply formatting styles to characters or paragraphs in a TextField object. See TextFormat.
TextSnapshot	The TextSnapshot object lets you access and lay out static text inside a movie clip. See TextSnapshot.
Video	The Video class lets you show video objects in a SWF file. You can use this class with Flash Media Server to display live streaming video in a SWF file, or within Flash to display a Flash Video (FLV) file. See Video.
XML	This class contains methods and properties for working with XML objects. See XML.
XMLNode	The XMLNode class represents a single node in an XML document tree. It is the XML class's superclass. See XMLNode.
XMLSocket	The XMLSocket class lets you create a persistent socket connection between a server computer and client running Flash Player. Client sockets enable low-latency data transfer, such as that which is required for real-time chat applications. See XMLSocket.
XMLUI	The XMLUI object enables communication with SWF files that are used as a custom user interface for the Flash authoring tool's extensibility features (such as Behaviors, Commands, Effects, and Tools). See XMLUI.

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