Capabilities - Adobe ActionScript® 3 (AS3 ) API Reference

Package	flash.system
Class	public final class Capabilities
Inheritance	Capabilities Object

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9, AIR 1.0, Flash Lite 4

The Capabilities class provides properties that describe the system and runtime that are hosting the application. For example, a mobile phone's screen might be 100 square pixels, black and white, whereas a PC screen might be 1000 square pixels, color. By using the Capabilities class to determine what capabilities the client has, you can provide appropriate content to as many users as possible. When you know the device's capabilities, you can tell the server to send the appropriate SWF files or tell the SWF file to alter its presentation.

However, some capabilities of Adobe AIR are not listed as properties in the Capabilities class. They are properties of other classes:

Property	Description
`NativeApplication.supportsDockIcon`	Whether the operating system supports application doc icons.
`NativeApplication.supportsMenu`	Whether the operating system supports a global application menu bar.
`NativeApplication.supportsSystemTrayIcon`	Whether the operating system supports system tray icons.
`NativeWindow.supportsMenu`	Whether the operating system supports window menus.
`NativeWindow.supportsTransparency`	Whether the operating system supports transparent windows.

Do not use Capabilities.os or Capabilities.manufacturer to determine a capability based on the operating system. Basing a capability on the operating system is a bad idea, since it can lead to problems if an application does not consider all potential target operating systems. Instead, use the property corresponding to the capability for which you are testing.

You can send capabilities information, which is stored in the Capabilities.serverString property as a URL-encoded string, using the GET or POST HTTP method. The following example shows a server string for a computer that has MP3 support and 1600 x 1200 pixel resolution, that is running Windows XP with an input method editor (IME) installed, and does not have support for multichannel audio:

A=t&SA=t&SV=t&EV=t&MP3=t&AE=t&VE=t&ACC=f&PR=t&SP=t&
     SB=f&DEB=t&V=WIN%209%2C0%2C0%2C0&M=Adobe%20Windows&
     R=1600x1200&DP=72&COL=color&AR=1.0&OS=Windows%20XP&
     L=en&PT=External&AVD=f&LFD=f&WD=f&IME=t&DD=f&
     DDP=f&DTS=f&DTE=f&DTH=f&DTM=f

The following table lists the properties of the Capabilities class and corresponding server strings. It also lists the server strings for the multichannel audio types.

Capabilities class property	Server string
`avHardwareDisable`	`AVD`
`hasAccessibility`	`ACC`
`hasAudio`	`A`
`hasAudioEncoder`	`AE`
`hasEmbeddedVideo`	`EV`
`hasIME`	`IME`
`hasMP3`	`MP3`
`hasPrinting`	`PR`
`hasScreenBroadcast`	`SB`
`hasScreenPlayback`	`SP`
`hasStreamingAudio`	`SA`
`hasStreamingVideo`	`SV`
`hasTLS`	`TLS`
`hasVideoEncoder`	`VE`
`isDebugger`	`DEB`
`language`	`L`
`localFileReadDisable`	`LFD`
`manufacturer`	`M`
`maxLevelIDC`	`ML`
`os`	`OS`
`pixelAspectRatio`	`AR`
`playerType`	`PT`
`screenColor`	`COL`
`screenDPI`	`DP`
`screenResolutionX`	`R`
`screenResolutionY`	`R`
`version`	`V`
`supports Dolby Digital audio`	`DD`
`supports Dolby Digital Plus audio`	`DDP`
`supports DTS audio`	`DTS`
`supports DTS Express audio`	`DTE`
`supports DTS-HD High Resolution Audio`	`DTH`
`supports DTS-HD Master Audio`	`DTM`

There is also a WD server string that specifies whether windowless mode is disabled. Windowless mode can be disabled in Flash Player due to incompatibility with the web browser or to a user setting in the mms.cfg file. There is no corresponding Capabilities property.

All properties of the Capabilities class are read-only.

View the examples

More examples

Determining Flash Player version in Flex
Using the Capabilities class

Public Properties

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	Property		Defined By
		avHardwareDisable : Boolean [static] [read-only] Specifies whether access to the user's camera and microphone has been administratively prohibited (true) or allowed (false).	Capabilities
		constructor : Object A reference to the class object or constructor function for a given object instance.	Object
		cpuAddressSize : Number [static] [read-only] Specifies whether the Flash Player or AIR application running on the system is 32-bit or 64-bit.	Capabilities
		cpuArchitecture : String [static] [read-only] Specifies the current CPU architecture.	Capabilities
		hasAccessibility : Boolean [static] [read-only] Specifies whether the system supports (true) or does not support (false) communication with accessibility aids.	Capabilities
		hasAudio : Boolean [static] [read-only] Specifies whether the system has audio capabilities.	Capabilities
		hasAudioEncoder : Boolean [static] [read-only] Specifies whether the system can (true) or cannot (false) encode an audio stream, such as that coming from a microphone.	Capabilities
		hasEmbeddedVideo : Boolean [static] [read-only] Specifies whether the system supports (true) or does not support (false) embedded video.	Capabilities
		hasIME : Boolean [static] [read-only] Specifies whether the system does (true) or does not (false) have an input method editor (IME) installed.	Capabilities
		hasMP3 : Boolean [static] [read-only] Specifies whether the system does (true) or does not (false) have an MP3 decoder.	Capabilities
		hasPrinting : Boolean [static] [read-only] Specifies whether the system does (true) or does not (false) support printing.	Capabilities
		hasScreenBroadcast : Boolean [static] [read-only] Specifies whether the system does (true) or does not (false) support the development of screen broadcast applications to be run through Flash Media Server.	Capabilities
		hasScreenPlayback : Boolean [static] [read-only] Specifies whether the system does (true) or does not (false) support the playback of screen broadcast applications that are being run through Flash Media Server.	Capabilities
		hasStreamingAudio : Boolean [static] [read-only] Specifies whether the system can (true) or cannot (false) play streaming audio.	Capabilities
		hasStreamingVideo : Boolean [static] [read-only] Specifies whether the system can (true) or cannot (false) play streaming video.	Capabilities
		hasTLS : Boolean [static] [read-only] Specifies whether the system supports native SSL sockets through NetConnection (true) or does not (false).	Capabilities
		hasVideoEncoder : Boolean [static] [read-only] Specifies whether the system can (true) or cannot (false) encode a video stream, such as that coming from a web camera.	Capabilities
		isDebugger : Boolean [static] [read-only] Specifies whether the system is a special debugging version (true) or an officially released version (false).	Capabilities
		isEmbeddedInAcrobat : Boolean [static] [read-only] Specifies whether the Flash runtime is embedded in a PDF file that is open in Acrobat 9.0 or higher (true) or not (false).	Capabilities
		language : String [static] [read-only] Specifies the language code of the system on which the content is running.	Capabilities
		languages : Array [static] [read-only] An array of strings that contain information about the user's preferred user interface languages, as set through the operating system.	Capabilities
		localFileReadDisable : Boolean [static] [read-only] Specifies whether read access to the user's hard disk has been administratively prohibited (true) or allowed (false).	Capabilities
		manufacturer : String [static] [read-only] Specifies the manufacturer of the running version of Flash Player or the AIR runtime, in the format "Adobe OSName".	Capabilities
		maxLevelIDC : String [static] [read-only] Retrieves the highest H.264 Level IDC that the client hardware supports.	Capabilities
		os : String [static] [read-only] Specifies the current operating system.	Capabilities
		pixelAspectRatio : Number [static] [read-only] Specifies the pixel aspect ratio of the screen.	Capabilities
		playerType : String [static] [read-only] Specifies the type of runtime environment.	Capabilities
		screenColor : String [static] [read-only] Specifies the screen color.	Capabilities
		screenDPI : Number [static] [read-only] Specifies the dots-per-inch (dpi) resolution of the screen, in pixels.	Capabilities
		screenResolutionX : Number [static] [read-only] Specifies the maximum horizontal resolution of the screen.	Capabilities
		screenResolutionY : Number [static] [read-only] Specifies the maximum vertical resolution of the screen.	Capabilities
		serverString : String [static] [read-only] A URL-encoded string that specifies values for each Capabilities property.	Capabilities
		supports32BitProcesses : Boolean [static] [read-only] Specifies whether the system supports running 32-bit processes.	Capabilities
		supports64BitProcesses : Boolean [static] [read-only] Specifies whether the system supports running 64-bit processes.	Capabilities
		touchscreenType : String [static] [read-only] Specifies the type of touchscreen supported, if any.	Capabilities
		version : String [static] [read-only] Specifies the Flash Player or Adobe® AIR® platform and version information.	Capabilities

Public Methods

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	Method		Defined By
		hasMultiChannelAudio(type:String):Boolean [static] Specifies whether the system supports multichannel audio of a specific type.	Capabilities
		hasOwnProperty(name:String):Boolean Indicates whether an object has a specified property defined.	Object
		isPrototypeOf(theClass:Object):Boolean Indicates whether an instance of the Object class is in the prototype chain of the object specified as the parameter.	Object
		propertyIsEnumerable(name:String):Boolean Indicates whether the specified property exists and is enumerable.	Object
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Sets the availability of a dynamic property for loop operations.	Object
		toLocaleString():String Returns the string representation of this object, formatted according to locale-specific conventions.	Object
		toString():String Returns the string representation of the specified object.	Object
		valueOf():Object Returns the primitive value of the specified object.	Object

Property Detail

avHardwareDisable

property

avHardwareDisable:Boolean [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9, AIR 1.0, Flash Lite 4

Specifies whether access to the user's camera and microphone has been administratively prohibited (true) or allowed (false). The server string is AVD.

For content in Adobe AIR™, this property applies only to content in security sandboxes other than the application security sandbox. Content in the application security sandbox can always access the user's camera and microphone.

Implementation
public static function get avHardwareDisable():Boolean

Related API Elements

flash.media.Camera.getCamera()
flash.media.Microphone.getMicrophone()
Security.showSettings()

cpuAddressSize

property

cpuAddressSize:Number [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 32, AIR 32

Specifies whether the Flash Player or AIR application running on the system is 32-bit or 64-bit. Returns 32 and 64 for 32-bit and 64-bit code respectively.

Implementation
public static function get cpuAddressSize():Number

cpuArchitecture

property

cpuArchitecture:String [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 10.0.32, AIR 1.5.1

Specifies the current CPU architecture. The cpuArchitecture property can return the following strings: "PowerPC", "x86", "SPARC", and "ARM". The server string is ARCH.

Implementation
public static function get cpuArchitecture():String

hasAccessibility

property

hasAccessibility:Boolean [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9, AIR 1.0, Flash Lite 4

Specifies whether the system supports (true) or does not support (false) communication with accessibility aids. The server string is ACC.

Implementation
public static function get hasAccessibility():Boolean

Related API Elements

flash.accessibility.Accessibility.active
flash.accessibility.Accessibility.updateProperties()

hasAudio

property

hasAudio:Boolean [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9, AIR 1.0, Flash Lite 4

Specifies whether the system has audio capabilities. This property is always true. The server string is A.

Implementation
public static function get hasAudio():Boolean

hasAudioEncoder

property

hasAudioEncoder:Boolean [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9, AIR 1.0, Flash Lite 4

Specifies whether the system can (true) or cannot (false) encode an audio stream, such as that coming from a microphone. The server string is AE.

Implementation
public static function get hasAudioEncoder():Boolean

hasEmbeddedVideo

property

hasEmbeddedVideo:Boolean [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9, AIR 1.0, Flash Lite 4

Specifies whether the system supports (true) or does not support (false) embedded video. The server string is EV.

Implementation
public static function get hasEmbeddedVideo():Boolean

hasIME

property

hasIME:Boolean [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9, AIR 1.0, Flash Lite 4

Specifies whether the system does (true) or does not (false) have an input method editor (IME) installed. The server string is IME.

Implementation
public static function get hasIME():Boolean

More examples

Using the IME class

Related API Elements

flash.system.IME
flash.system.System.ime

hasMP3

property

hasMP3:Boolean [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9, AIR 1.0, Flash Lite 4

Specifies whether the system does (true) or does not (false) have an MP3 decoder. The server string is MP3.

Implementation
public static function get hasMP3():Boolean

More examples

Using the Capabilities class

hasPrinting

property

hasPrinting:Boolean [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9, AIR 1.0, Flash Lite 4

Specifies whether the system does (true) or does not (false) support printing. The server string is PR.

Implementation
public static function get hasPrinting():Boolean

hasScreenBroadcast

property

hasScreenBroadcast:Boolean [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9, AIR 1.0, Flash Lite 4

Specifies whether the system does (true) or does not (false) support the development of screen broadcast applications to be run through Flash Media Server. The server string is SB.

Implementation
public static function get hasScreenBroadcast():Boolean

hasScreenPlayback

property

hasScreenPlayback:Boolean [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9, AIR 1.0, Flash Lite 4

Specifies whether the system does (true) or does not (false) support the playback of screen broadcast applications that are being run through Flash Media Server. The server string is SP.

Implementation
public static function get hasScreenPlayback():Boolean

hasStreamingAudio

property

hasStreamingAudio:Boolean [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9, AIR 1.0, Flash Lite 4

Specifies whether the system can (true) or cannot (false) play streaming audio. The server string is SA.

Implementation
public static function get hasStreamingAudio():Boolean

hasStreamingVideo

property

hasStreamingVideo:Boolean [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9, AIR 1.0, Flash Lite 4

Specifies whether the system can (true) or cannot (false) play streaming video. The server string is SV.

Implementation
public static function get hasStreamingVideo():Boolean

hasTLS

property

hasTLS:Boolean [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9, AIR 1.0, Flash Lite 4

Specifies whether the system supports native SSL sockets through NetConnection (true) or does not (false). The server string is TLS.

Implementation
public static function get hasTLS():Boolean

Related API Elements

flash.net.NetConnection.connectedProxyType
flash.net.NetConnection.proxyType
flash.net.NetConnection.usingTLS

hasVideoEncoder

property

hasVideoEncoder:Boolean [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9, AIR 1.0, Flash Lite 4

Specifies whether the system can (true) or cannot (false) encode a video stream, such as that coming from a web camera. The server string is VE.

Implementation
public static function get hasVideoEncoder():Boolean

isDebugger

property

isDebugger:Boolean [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9, AIR 1.0, Flash Lite 4

Specifies whether the system is a special debugging version (true) or an officially released version (false). The server string is DEB. This property is set to true when running in the debug version of Flash Player or the AIR Debug Launcher (ADL).

Implementation
public static function get isDebugger():Boolean

isEmbeddedInAcrobat

property

isEmbeddedInAcrobat:Boolean [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9.0.127.0, AIR 1.1, Flash Lite 4

Specifies whether the Flash runtime is embedded in a PDF file that is open in Acrobat 9.0 or higher (true) or not (false).

Implementation
public static function get isEmbeddedInAcrobat():Boolean

More examples

Using the Capabilities class

language

property

language:String [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9, AIR 1.0, Flash Lite 4

Specifies the language code of the system on which the content is running. The language is specified as a lowercase two-letter language code from ISO 639-1. For Chinese, an additional uppercase two-letter country code from ISO 3166 distinguishes between Simplified and Traditional Chinese. The languages codes are based on the English names of the language: for example, hu specifies Hungarian.

On English systems, this property returns only the language code (en), not the country code. On Microsoft Windows systems, this property returns the user interface (UI) language, which refers to the language used for all menus, dialog boxes, error messages, and help files. The following table lists the possible values:

Language	Value
Czech	`cs`
Danish	`da`
Dutch	`nl`
English	`en`
Finnish	`fi`
French	`fr`
German	`de`
Hungarian	`hu`
Italian	`it`
Japanese	`ja`
Korean	`ko`
Norwegian	`nb`
Other/unknown	`xu`
Polish	`pl`
Portuguese	`pt`
Russian	`ru`
Simplified Chinese	`zh-CN`
Spanish	`es`
Swedish	`sv`
Traditional Chinese	`zh-TW`
Turkish	`tr`

Note: The value of Capabilities.language property is limited to the possible values on this list. Because of this limitation, Adobe AIR applications should use the first element in the Capabilities.languages array to determine the primary user interface language for the system.

The server string is L.

Implementation
public static function get language():String

More examples

Choosing a locale

Related API Elements

languages

Example ( How to use this example )

In the following example, the content that is displayed depends on the language of the user's operating system.

The Capabilities.language property returns the ISO 639-1 language code (for example, "en" for English). The switch statement checks for the language code and sets the content of the myTextField text field to a greeting specific to the language. If the language code is not supported by the example, the default error string is returned.

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package {
    import flash.display.Sprite;
    import flash.text.TextField;
    import flash.text.TextFieldAutoSize;
    import flash.system.Capabilities;

    public class Capabilities_languageExample extends Sprite {

        public function Capabilities_languageExample()  {
            var myTextField:TextField = new TextField();         
            myTextField.x = 10;
            myTextField.y = 10;
            myTextField.background = true;
            myTextField.autoSize = TextFieldAutoSize.LEFT;
            
            var greetingEnglish:String = "Hello World";
            var greetingGerman:String = "Hallo Welt";
            var greetingFrench:String = "Bonjour Monde";
            var greetingSpanish:String = "Hola Mundo";

            var lang:String = Capabilities.language;
                         
            switch (lang) {
                case "en":
                    myTextField.text = greetingEnglish;
                    break;
                case "de":
                    myTextField.text = greetingGerman;
                    break;
                case "fr":
                    myTextField.text = greetingFrench;
                    break;
                case "es":
                    myTextField.text = greetingSpanish;
                    break;
                default:
                    myTextField.text = "Sorry your system's language is not supported at this time.";               
            }
             
            this.addChild(myTextField);
        }
    }
}

languages

property

languages:Array [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.1

An array of strings that contain information about the user's preferred user interface languages, as set through the operating system. The strings will contain language tags (and script and region information, where applicable) defined by RFC4646 (http://www.ietf.org/rfc/rfc4646.txt) and will use dashes as a delimiter (for example, "en-US" or "ja-JP"). Languages are listed in the array in the order of preference, as determined by the operating system settings.

Operating systems differ in region information returned in locale strings. One operating system may return "en-us", whereas another may return "en".

The first entry in the returned array generally has the same primary language ID as the Capabilities.language property. For example, if Capabilities.languages[0] is set to "en-US", then the language property is set to "en". However, if the Capabilities.language property is set to "xu" (specifying an unknown language), the first element in this array will be different. For this reason, Capabilities.languages[0] can be more accurate than Capabilities.language.

The server string is LS.

Implementation
public static function get languages():Array

More examples

Choosing a locale

localFileReadDisable

property

localFileReadDisable:Boolean [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9, AIR 1.0, Flash Lite 4

Specifies whether read access to the user's hard disk has been administratively prohibited (true) or allowed (false). For content in Adobe AIR, this property applies only to content in security sandboxes other than the application security sandbox. (Content in the application security sandbox can always read from the file system.) If this property is true, Flash Player cannot read files (including the first file that Flash Player launches with) from the user's hard disk. If this property is true, AIR content outside of the application security sandbox cannot read files from the user's hard disk. For example, attempts to read a file on the user's hard disk using load methods will fail if this property is set to true.

Reading runtime shared libraries is also blocked if this property is set to true, but reading local shared objects is allowed without regard to the value of this property.

The server string is LFD.

Implementation
public static function get localFileReadDisable():Boolean

Related API Elements

flash.display.Loader

manufacturer

property

manufacturer:String [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9, AIR 1.0, Flash Lite 4

Specifies the manufacturer of the running version of Flash Player or the AIR runtime, in the format "Adobe OSName". The value for OSName could be "Windows", "Macintosh", "Linux", or another operating system name. The server string is M.

Do not use Capabilities.manufacturer to determine a capability based on the operating system if a more specific capability property exists. Basing a capability on the operating system is a bad idea, since it can lead to problems if an application does not consider all potential target operating systems. Instead, use the property corresponding to the capability for which you are testing. For more information, see the Capabilities class description.

Implementation
public static function get manufacturer():String

maxLevelIDC

property

maxLevelIDC:String [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 10, AIR 1.5, Flash Lite 4

Retrieves the highest H.264 Level IDC that the client hardware supports. Media run at this level are guaranteed to run; however, media run at the highest level might not run with the highest quality. This property is useful for servers trying to target a client's capabilities. Using this property, a server can determine the level of video to send to the client.

The server string is ML.

Implementation
public static function get maxLevelIDC():String

os

property

os:String [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9, AIR 1.0, Flash Lite 4

Specifies the current operating system. The os property can return the following strings:

Operating system	Value
Windows 10	`"Windows 10"`
Windows 8	`"Windows 8"`
Windows 7	`"Windows 7"`
Windows Vista	`"Windows Vista"`
Windows Server 2012	`"Windows Server 2012"`
Windows Server 2008 R2	`"Windows Server 2008 R2"`
Windows Server 2008	`"Windows Server 2008"`
Windows Home Server	`"Windows Home Server"`
Windows Server 2003 R2	`"Windows Server 2003 R2"`
Windows Server 2003	`"Windows Server 2003"`
Windows XP 64	`"Windows Server XP 64"`
Windows XP	`"Windows XP"`
Windows 98	`"Windows 98"`
Windows 95	`"Windows 95"`
Windows NT	`"Windows NT"`
Windows 2000	`"Windows 2000"`
Windows ME	`"Windows ME"`
Windows CE	`"Windows CE"`
Windows SmartPhone	`"Windows SmartPhone"`
Windows PocketPC	`"Windows PocketPC"`
Windows CEPC	`"Windows CEPC"`
Windows Mobile	`"Windows Mobile"`
Mac OS	`"Mac OS X.Y.Z"` (where X.Y.Z is the version number, for example: `"Mac OS 10.5.2"`)
Linux	`"Linux"` (Flash Player attaches the Linux version, such as `"Linux 2.6.15-1.2054_FC5smp"`
iPhone OS 4.1	`"iPhone3,1"`

The server string is OS.

Do not use Capabilities.os to determine a capability based on the operating system if a more specific capability property exists. Basing a capability on the operating system is a bad idea, since it can lead to problems if an application does not consider all potential target operating systems. Instead, use the property corresponding to the capability for which you are testing. For more information, see the Capabilities class description.

Implementation
public static function get os():String

pixelAspectRatio

property

pixelAspectRatio:Number [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9, AIR 1.0, Flash Lite 4

Specifies the pixel aspect ratio of the screen. The server string is AR.

Implementation
public static function get pixelAspectRatio():Number

playerType

property

playerType:String [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9, AIR 1.0, Flash Lite 4

Specifies the type of runtime environment. This property can have one of the following values:

"ActiveX" for the Flash Player ActiveX control used by Microsoft Internet Explorer
"Desktop" for the Adobe AIR runtime (except for SWF content loaded by an HTML page, which has Capabilities.playerType set to "PlugIn")
"External" for the external Flash Player or in test mode
"PlugIn" for the Flash Player browser plug-in (and for SWF content loaded by an HTML page in an AIR application)
"StandAlone" for the stand-alone Flash Player

The server string is PT.

Implementation
public static function get playerType():String

screenColor

property

screenColor:String [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9, AIR 1.0, Flash Lite 4

Specifies the screen color. This property can have the value "color", "gray" (for grayscale), or "bw" (for black and white). The server string is COL.

Implementation
public static function get screenColor():String

screenDPI

property

screenDPI:Number [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9, AIR 1.0, Flash Lite 4

Specifies the dots-per-inch (dpi) resolution of the screen, in pixels. The server string is DP.

Implementation
public static function get screenDPI():Number

screenResolutionX

property

screenResolutionX:Number [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9, AIR 1.0, Flash Lite 4

Specifies the maximum horizontal resolution of the screen. The server string is R (which returns both the width and height of the screen). This property does not update with a user's screen resolution and instead only indicates the resolution at the time Flash Player or an Adobe AIR application started. Also, the value only specifies the primary screen.

Implementation
public static function get screenResolutionX():Number

More examples

Using the Capabilities class

screenResolutionY

property

screenResolutionY:Number [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9, AIR 1.0, Flash Lite 4

Specifies the maximum vertical resolution of the screen. The server string is R (which returns both the width and height of the screen). This property does not update with a user's screen resolution and instead only indicates the resolution at the time Flash Player or an Adobe AIR application started. Also, the value only specifies the primary screen.

Implementation
public static function get screenResolutionY():Number

More examples

Using the Capabilities class

Example ( How to use this example )

The following example is a simple test that indicates the current screen resolution and operating system version. When testing this example, click the text field to see the property values:

Copy

import flash.events.*;
import flash.display.*;
import flash.system.Capabilities;
import flash.text.TextField;

var screenInfoTxt:TextField = new TextField();
screenInfoTxt.x = 30;
screenInfoTxt.y = 50;
screenInfoTxt.width = 300;
screenInfoTxt.height = 100;
screenInfoTxt.border = true;

addChild(screenInfoTxt);

addEventListener(MouseEvent.CLICK, getScreenNVersion);

function getScreenNVersion(e:MouseEvent):void{
    screenInfoTxt.text= "flash.system.Capabilities.screenResolutionX is : " + String(flash.system.Capabilities.screenResolutionX) + "\n" +
    "flash.system.Capabilities.screenResolutionY is : " + String(flash.system.Capabilities.screenResolutionY) + "\n" +
    "flash.system.Capabilities.version is : " + flash.system.Capabilities.version;
}

serverString

property

serverString:String [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9, AIR 1.0, Flash Lite 4

A URL-encoded string that specifies values for each Capabilities property.

The following example shows a URL-encoded string:

A=t&SA=t&SV=t&EV=t&MP3=t&AE=t&VE=t&ACC=f&PR=t&SP=t&
	 SB=f&DEB=t&V=WIN%208%2C5%2C0%2C208&M=Adobe%20Windows&
	 R=1600x1200&DP=72&COL=color&AR=1.0&OS=Windows%20XP&
	 L=en&PT=External&AVD=f&LFD=f&WD=f

Implementation
public static function get serverString():String

More examples

Using the Capabilities class

supports32BitProcesses

property

supports32BitProcesses:Boolean [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 10.0.32, AIR 1.5.2

Specifies whether the system supports running 32-bit processes. The server string is PR32.

Implementation
public static function get supports32BitProcesses():Boolean

supports64BitProcesses

property

supports64BitProcesses:Boolean [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 10.0.32, AIR 1.5.2

Specifies whether the system supports running 64-bit processes. The server string is PR64.

Implementation
public static function get supports64BitProcesses():Boolean

touchscreenType

property

touchscreenType:String [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 10.1, AIR 2

Specifies the type of touchscreen supported, if any. Values are defined in the flash.system.TouchscreenType class.

Implementation
public static function get touchscreenType():String

Related API Elements

TouchscreenType class
flash.ui.Mouse.supportsCursor

Example ( How to use this example )

The following example is a simple test that indicates the current type of touch screen. When testing this example, click a text field to see the property values:

import flash.events.*;
import flash.display.*;
import flash.system.Capabilities;
import flash.text.TextField;

var capabilitiesTouchScreenTypeTxt:TextField = new TextField();
capabilitiesTouchScreenTypeTxt.width = 300;
capabilitiesTouchScreenTypeTxt.border = true;

addChild(capabilitiesTouchScreenTypeTxt);

addEventListener(MouseEvent.CLICK, getScreenKeyboardType);

function getScreenKeyboardType(e:MouseEvent):void{
    capabilitiesTouchScreenTypeTxt.text= "flash.system.Capabilities.touchscreenType is : " + flash.system.Capabilities.touchscreenType;
}

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version

property

version:String [read-only]

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9, AIR 1.0, Flash Lite 4

Specifies the Flash Player or Adobe^® AIR^® platform and version information. The format of the version number is: platform majorVersion,minorVersion,buildNumber,internalBuildNumber. Possible values for platform are "WIN", ` "MAC", "LNX", and "AND". Here are some examples of version information:

	 WIN 9,0,0,0  // Flash Player 9 for Windows
	 MAC 7,0,25,0   // Flash Player 7 for Macintosh
	 LNX 9,0,115,0  // Flash Player 9 for Linux
	 AND 10,2,150,0 // Flash Player 10 for Android

Do not use Capabilities.version to determine a capability based on the operating system if a more specific capability property exists. Basing a capability on the operating system is a bad idea, since it can lead to problems if an application does not consider all potential target operating systems. Instead, use the property corresponding to the capability for which you are testing. For more information, see the Capabilities class description.

The server string is V.

Implementation
public static function get version():String

More examples

Using the Capabilities class

Example ( How to use this example )

The following example is a simple test that indicates the current screen resolution and operating system version. When testing this example, click the text field to see the property values:

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import flash.events.*;
import flash.display.*;
import flash.system.Capabilities;
import flash.text.TextField;

var screenInfoTxt:TextField = new TextField();
screenInfoTxt.x = 30;
screenInfoTxt.y = 50;
screenInfoTxt.width = 300;
screenInfoTxt.height = 100;
screenInfoTxt.border = true;

addChild(screenInfoTxt);

addEventListener(MouseEvent.CLICK, getScreenNVersion);

function getScreenNVersion(e:MouseEvent):void{
    screenInfoTxt.text= "flash.system.Capabilities.screenResolutionX is : " + String(flash.system.Capabilities.screenResolutionX) + "\n" +
    "flash.system.Capabilities.screenResolutionY is : " + String(flash.system.Capabilities.screenResolutionY) + "\n" +
    "flash.system.Capabilities.version is : " + flash.system.Capabilities.version;
}

Method Detail

hasMultiChannelAudio

()

method

public static function hasMultiChannelAudio(type:String):Boolean

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 11, AIR 3

Specifies whether the system supports multichannel audio of a specific type. The class flash.media.AudioDecoder enumerates the possible types.

AIR profile support: Multichannel audio is supported only on AIR for TV devices. On all other devices, this method always returns false. See AIR Profile Support for more information regarding API support across multiple profiles.

Note: When using one of the DTS audio codecs, scenarios exist in which hasMultiChannelAudio() returns true but the DTS audio is not played. For example, consider a Blu-ray player with an S/PDIF output, connected to an old amplifier. The old amplifier does not support DTS, but S/PDIF has no protocol to notify the Blu-ray player. If the Blu-ray player sends the DTS stream to the old amplifier, the user hears nothing. Therefore, as a best practice when using DTS, provide a user interface so that the user can indicate if no sound is playing. Then, your application can revert to a different codec.

The following table shows the server string for each multichannel audio type:

Multichannel audio type	Server string
`AudioDecoder.DOLBY_DIGITAL`	`DD`
`AudioDecoder.DOLBY_DIGITAL_PLUS`	`DDP`
`AudioDecoder.DTS`	`DTS`
`AudioDecoder.DTS_EXPRESS`	`DTE`
`AudioDecoder.DTS_HD_HIGH_RESOLUTION_AUDIO`	`DTH`
`AudioDecoder.DTS_HD_MASTER_AUDIO`	`DTM`

Parameters

type:String — A String value representing a multichannel audio type. The valid values are the constants defined in flash.media.AudioDecoder.

Returns

Boolean — The Boolean value true if the system supports the multichannel audio type passed in the type parameter. Otherwise, the return value is false.

Related API Elements

flash.media.AudioDecoder

Example ( How to use this example )

The following code traces the return value of a call to hasMultiChannelAudio(). The return value indicates whether the system supports Dolby Digital multichannel audio.

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    trace(Capabilities.hasMultiChannelAudio(flash.media.AudioDecoder.DOLBY_DIGITAL);

Examples How to use this example

CapabilitiesExample.as

The following example outputs the values found in the flash.system.Capabilities object. First, it outputs the values into a text field. Then, it outputs the values using several calls to trace().

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package {
    import flash.display.Sprite;
    import flash.system.Capabilities;
    import flash.text.TextField;
    import flash.text.TextFieldAutoSize;

    public class CapabilitiesExample extends Sprite {
        
        public function CapabilitiesExample() {
            showCapabilities();
        }
        
        private function showCapabilities():void {
            var tf:TextField = new TextField();
            tf.height = 600;
            tf.width = 400;
            tf.autoSize = TextFieldAutoSize.LEFT;
            tf.wordWrap = true;
            
            tf.text = "avHardwareDisable: " + Capabilities.avHardwareDisable +
                
                "\nhasAccessibility: " + Capabilities.hasAccessibility +
                "\nhasAudio: " + Capabilities.hasAudio +
                "\nhasAudioEncoder: " + Capabilities.hasAudioEncoder +
                "\nhasEmbeddedVideo: " + Capabilities.hasEmbeddedVideo +
                "\nhasIME: " + Capabilities.hasIME +
                "\nhasMP3: " + Capabilities.hasMP3 +
                "\nhasPrinting: " + Capabilities.hasPrinting +
                "\nhasScreenBroadcast: " + Capabilities.hasScreenBroadcast +
                "\nhasScreenPlayback: " + Capabilities.hasScreenPlayback +
                "\nhasStreamingAudio: " + Capabilities.hasStreamingAudio +
                "\nhasStreamingVideo: " + Capabilities.hasStreamingVideo +
                "\nhasTLS: " + Capabilities.hasTLS +
                "\nhasVideoEncoder: " + Capabilities.hasVideoEncoder +
                "\nisDebugger: " + Capabilities.isDebugger +
                "\nisEmbeddedInAcrobat: " + Capabilities.isEmbeddedInAcrobat +
                "\nlanguage: " + Capabilities.language +
                "\nlocalFileReadDisable: " + Capabilities.localFileReadDisable +
                "\nmanufacturer: " + Capabilities.manufacturer +
                "\nmaxLevelIDC: " + Capabilities.maxLevelIDC +
                "\nos: " + Capabilities.os +
                "\npixelAspectRatio: " + Capabilities.pixelAspectRatio +
                "\nplayerType: " + Capabilities.playerType +
                "\nscreenColor: " + Capabilities.screenColor +
                "\nscreenDPI: " + Capabilities.screenDPI +
                "\nscreenResolutionX: " + Capabilities.screenResolutionX +
                "\nscreenResolutionY: " + Capabilities.screenResolutionY +
                "\nserverString: " + Capabilities.serverString +
                "\ntouchscreenType: " + Capabilities.touchscreenType +
                
                // The following capabilities are supported only when publishing for AIR.
                // If you are publishing for AIR, uncomment the following lines.
                //"\nlanguages: " + Capabilities.languages +
                //"\ncpuArchitecture: " + Capabilities.cpuArchitecture +
                //"\nsupports32BitProcesses: " + Capabilities.supports32BitProcesses +
                //"\nsupports64BitProcesses: " + Capabilities.supports64BitProcesses +    
                                
                "\nversion: " + Capabilities.version;
                
            addChild(tf);   
                
            trace("avHardwareDisable: " + Capabilities.avHardwareDisable);
            trace("hasAccessibility: " + Capabilities.hasAccessibility);
            trace("hasAudio: " + Capabilities.hasAudio);
            trace("hasAudioEncoder: " + Capabilities.hasAudioEncoder);
            trace("hasEmbeddedVideo: " + Capabilities.hasEmbeddedVideo);
            trace("hasIME: " + Capabilities.hasIME);
            trace("hasMP3: " + Capabilities.hasMP3);
            trace("hasPrinting: " + Capabilities.hasPrinting);
            trace("hasScreenBroadcast: " + Capabilities.hasScreenBroadcast);
            trace("hasScreenPlayback: " + Capabilities.hasScreenPlayback);
            trace("hasStreamingAudio: " + Capabilities.hasStreamingAudio);
            trace("hasStreamingVideo: " + Capabilities.hasStreamingVideo);
            trace("hasTLS: " + Capabilities.hasTLS);
            trace("hasVideoEncoder: " + Capabilities.hasVideoEncoder);
            trace("isDebugger: " + Capabilities.isDebugger);
            trace("isEmbeddedInAcrobat: " + Capabilities.isEmbeddedInAcrobat);
            trace("language: " + Capabilities.language);
            trace("localFileReadDisable: " + Capabilities.localFileReadDisable);
            trace("manufacturer: " + Capabilities.manufacturer);
            trace("maxLevelIDC: " + Capabilities.maxLevelIDC);
            trace("os: " + Capabilities.os);
            trace("pixelAspectRatio: " + Capabilities.pixelAspectRatio);
            trace("playerType: " + Capabilities.playerType);
            trace("screenColor: " + Capabilities.screenColor);
            trace("screenDPI: " + Capabilities.screenDPI);
            trace("screenResolutionX: " + Capabilities.screenResolutionX);
            trace("screenResolutionY: " + Capabilities.screenResolutionY);
            trace("serverString: " + Capabilities.serverString);
            trace("touchscreenType: " + Capabilities.touchscreenType);
            
            // The following capabilities are supported only when publishing for AIR.
            // If you are publishing for AIR, uncomment the following lines.       
            //trace("cpuArchitecture: " + Capabilities.cpuArchitecture);
            //trace("languages: " + Capabilities.languages);
            //trace("supports32BitProcesses: " + Capabilities.supports32BitProcesses);
            //trace("supports64BitProcesses: " + Capabilities.supports64BitProcesses);        
                        
            trace("version: " + Capabilities.version);
       
        }
    }
}

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Capabilities - AS3

Classes x

avHardwareDisable

cpuAddressSize

cpuArchitecture

hasAccessibility

hasAudio

hasAudioEncoder

hasEmbeddedVideo

hasIME

hasMP3

hasPrinting

hasScreenBroadcast

hasScreenPlayback

hasStreamingAudio

hasStreamingVideo

hasTLS

hasVideoEncoder

isDebugger

isEmbeddedInAcrobat

language

languages

localFileReadDisable

manufacturer

maxLevelIDC

os

pixelAspectRatio

playerType

screenColor

screenDPI

screenResolutionX

screenResolutionY

serverString

supports32BitProcesses

supports64BitProcesses

touchscreenType

version

hasMultiChannelAudio