Flash (ActionScript 3.0) API Coverage

Tracks implementation status of AS3 APIs relevant to Flash game/app decompilation. Only flash.* packages and top-level builtins are tracked — AIR, Flex (mx.*), and LiveCycle (com.adobe.*) packages are out of scope.

References:

• AS3 API Reference (AIRSDK)
• AS3 API Reference (Adobe)

Legend: [x] implemented, [~] partial/stub, [ ] not started

---

Top Level

Types & Constructors

• [x] Array
• [x] Boolean
• [ ] Class
• [ ] Date
• [x] Function
• [x] int
• [x] Number
• [x] Object
• [ ] RegExp
• [x] String
• [x] uint
• [x] Vector
• [ ] XML (E4X) — [~] stub with basic XMLList proxy
• [ ] XMLList — [~] stub with property projection

Global Functions

• [ ] decodeURI / decodeURIComponent
• [ ] encodeURI / encodeURIComponent
• [ ] escape / unescape
• [x] int() / uint() (type coercion)
• [ ] isFinite
• [x] isNaN (via NaN push)
• [ ] isXMLName
• [x] Number() (type coercion)
• [ ] parseFloat / parseInt
• [x] String() (type coercion)
• [x] trace (→ console.log)
• [x] typeof

---

flash.display

DisplayObject

• [x] Properties: x, y, width, height, scaleX, scaleY, rotation, alpha, visible, name, parent, stage, root, mouseX, mouseY, transform, filters, blendMode, cacheAsBitmap, loaderInfo, mask, opaqueBackground, scrollRect, scale9Grid, rotationX/Y/Z, scaleZ, z
• [x] Methods: getBounds, getRect, globalToLocal, localToGlobal, hitTestObject, hitTestPoint
• [ ] Properties: accessibilityProperties

InteractiveObject

• [x] Properties: mouseEnabled, doubleClickEnabled, focusRect, tabEnabled, tabIndex, contextMenu
• [ ] Properties: softKeyboardInputAreaOfInterest, needsSoftKeyboard

DisplayObjectContainer

• [x] Properties: mouseChildren, numChildren, tabChildren
• [x] Methods: addChild, addChildAt, contains, getChildAt, getChildByName, getChildIndex, removeChild, removeChildAt, removeChildren, setChildIndex, swapChildren, swapChildrenAt
• [ ] Methods: areInaccessibleObjectsUnderPoint, getObjectsUnderPoint

Sprite

• [x] Properties: graphics, buttonMode, dropTarget, hitArea, soundTransform, useHandCursor
• [x] Methods: startDrag, stopDrag
• [ ] Methods: startTouchDrag, stopTouchDrag

MovieClip

• [x] Properties: currentFrame, currentFrameLabel, currentLabel, currentLabels, currentScene, enabled, framesLoaded, isPlaying, scenes, totalFrames, trackAsMenu
• [x] Methods: gotoAndPlay, gotoAndStop, nextFrame, nextScene, play, prevFrame, prevScene, stop, addFrameScript

Stage

• [x] Properties: align, color, displayState, focus, frameRate, fullScreenHeight, fullScreenSourceRect, fullScreenWidth, quality, scaleMode, showDefaultContextMenu, stageFocusRect, stageHeight, stageWidth
• [x] Methods: invalidate
• [ ] Properties: allowsFullScreen, allowsFullScreenInteractive, contentsScaleFactor, mouseLock, wmodeGPU
• [ ] Methods: addEventListener for stage-specific events

Shape

• [x] Properties: graphics

Bitmap

• [x] Properties: bitmapData, pixelSnapping, smoothing

BitmapData

• [x] Properties: width, height, transparent, rect
• [x] Methods: clone, dispose, getPixel, getPixel32, setPixel, setPixel32, fillRect, copyPixels, lock, unlock
• [~] draw — empty no-op; requires a 2D rasteriser to composite IBitmapDrawable onto the pixel buffer
• [ ] Methods: applyFilter, colorTransform, compare, copyChannel, floodFill, generateFilterRect, getColorBoundsRect, getPixels, getVector, histogram, hitTest, merge, noise, paletteMap, perlinNoise, pixelDissolve, scroll, setPixels, setVector, threshold

SimpleButton

• [x] Properties: downState, enabled, hitTestState, overState, soundTransform, trackAsMenu, upState, useHandCursor

Loader

• [x] Methods: close, load, loadBytes, unload, unloadAndStop
• [x] LoaderInfo properties

Graphics

• [x] Methods: beginBitmapFill, beginFill, beginGradientFill, clear, copyFrom, curveTo, drawCircle, drawEllipse, drawPath, drawRect, drawRoundRect, drawTriangles, endFill, lineGradientStyle, lineStyle, lineTo, moveTo
• [ ] Methods: beginShaderFill, cubicCurveTo, drawRoundRectComplex, readGraphicsData

Constants/Enums

• [x] BlendMode
• [ ] StageAlign (partial)
• [ ] StageScaleMode (partial)
• [ ] StageQuality
• [ ] StageDisplayState
• [ ] PixelSnapping
• [ ] LineScaleMode, CapsStyle, JointStyle
• [ ] GradientType, InterpolationMethod, SpreadMethod
• [ ] BitmapDataChannel

---

flash.events

EventDispatcher

• [x] addEventListener, removeEventListener, dispatchEvent, hasEventListener, willTrigger

Event

• [x] Properties: type, bubbles, cancelable, target, currentTarget, eventPhase
• [x] Methods: clone, formatToString, isDefaultPrevented, preventDefault, stopImmediatePropagation, stopPropagation
• [x] Constants: ACTIVATE, ADDED, ADDED_TO_STAGE, CANCEL, CHANGE, CLEAR, CLOSE, COMPLETE, CONNECT, COPY, CUT, DEACTIVATE, ENTER_FRAME, EXIT_FRAME, FRAME_CONSTRUCTED, INIT, MOUSE_LEAVE, OPEN, REMOVED, REMOVED_FROM_STAGE, RENDER, RESIZE, SCROLL, SELECT, SOUND_COMPLETE, UNLOAD, etc.

MouseEvent

• [x] Properties: localX, localY, stageX, stageY, relatedObject, ctrlKey, altKey, shiftKey, buttonDown, delta, clickCount
• [x] Methods: updateAfterEvent
• [x] Constants: CLICK, DOUBLE_CLICK, MOUSE_DOWN, MOUSE_MOVE, MOUSE_OUT, MOUSE_OVER, MOUSE_UP, MOUSE_WHEEL, ROLL_OUT, ROLL_OVER, CONTEXT_MENU, MIDDLE_CLICK, MIDDLE_MOUSE_DOWN/UP, RIGHT_CLICK, RIGHT_MOUSE_DOWN/UP, RELEASE_OUTSIDE

KeyboardEvent

• [x] Properties: charCode, keyCode, keyLocation, ctrlKey, altKey, shiftKey
• [x] Constants: KEY_DOWN, KEY_UP

FocusEvent

• [x] Properties: relatedObject, shiftKey, keyCode, direction
• [x] Constants: FOCUS_IN, FOCUS_OUT, KEY_FOCUS_CHANGE, MOUSE_FOCUS_CHANGE

TimerEvent

• [x] Constants: TIMER, TIMER_COMPLETE

ProgressEvent

• [x] Properties: bytesLoaded, bytesTotal
• [x] Constants: PROGRESS, SOCKET_DATA

IOErrorEvent

• [x] Constants: IO_ERROR

SecurityErrorEvent

• [x] Constants: SECURITY_ERROR

HTTPStatusEvent

• [x] Properties: status, responseHeaders, responseURL
• [x] Constants: HTTP_STATUS, HTTP_RESPONSE_STATUS

AsyncErrorEvent

• [x] Properties: error
• [x] Constants: ASYNC_ERROR

TextEvent

• [x] Properties: text
• [x] Constants: LINK, TEXT_INPUT

ErrorEvent

• [x] Properties: errorID

Not Implemented

• [ ] TouchEvent (TOUCH_BEGIN, TOUCH_END, TOUCH_MOVE, TOUCH_OUT, TOUCH_OVER, TOUCH_ROLL_OUT, TOUCH_ROLL_OVER, TOUCH_TAP)
• [ ] GestureEvent, TransformGestureEvent, PressAndTapGestureEvent
• [ ] NetStatusEvent
• [ ] StatusEvent
• [ ] SyncEvent
• [ ] FullScreenEvent
• [ ] SampleDataEvent
• [ ] ShaderEvent
• [ ] SoftKeyboardEvent
• [ ] StageVideoEvent
• [ ] VideoEvent
• [ ] DataEvent
• [ ] UncaughtErrorEvent / UncaughtErrorEvents
• [ ] ActivityEvent
• [ ] ContextMenuEvent
• [ ] DRMErrorEvent, DRMStatusEvent
• [ ] IMEEvent
• [ ] AccelerometerEvent, DeviceRotationEvent, GeolocationEvent

---

flash.text

TextField

• [x] Properties: text, htmlText, textColor, textWidth, textHeight, type, autoSize, multiline, wordWrap, selectable, embedFonts, defaultTextFormat, length, maxChars, restrict, background, backgroundColor, border, borderColor, displayAsPassword, condenseWhite, alwaysShowSelection, antiAliasType, gridFitType, maxScrollH, maxScrollV, scrollH, scrollV, bottomScrollV, mouseWheelEnabled, numLines, caretIndex, selectionBeginIndex, selectionEndIndex, sharpness, thickness, styleSheet, useRichTextClipboard
• [x] Methods: appendText, getTextFormat, setTextFormat, replaceSelectedText, replaceText, setSelection, getCharBoundaries, getCharIndexAtPoint, getLineIndexAtPoint, getLineIndexOfChar, getLineLength, getLineMetrics, getLineOffset, getLineText, getFirstCharInParagraph, getParagraphLength
• [ ] getImageReference — requires parsing htmlText for <img id="..."> tags and instantiating Bitmap objects for embedded assets; currently throws
• [x] Static: isFontCompatible

TextFormat

• [x] All properties: align, blockIndent, bold, bullet, color, display, font, indent, italic, kerning, leading, leftMargin, letterSpacing, rightMargin, size, tabStops, target, underline, url

TextLineMetrics

• [x] Properties: x, width, height, ascent, descent, leading

StyleSheet

• [x] Methods: clear, getStyle, setStyle, parseCSS, transform

Font

• [x] Properties: fontName, fontStyle, fontType
• [x] Methods: enumerateFonts, registerFont
• [~] hasGlyphs — always returns true; glyph table lookup not implemented

Constants

• [x] TextFieldType (DYNAMIC, INPUT)
• [x] TextFieldAutoSize (CENTER, LEFT, NONE, RIGHT)
• [x] TextFormatAlign (CENTER, JUSTIFY, LEFT, RIGHT)
• [x] AntiAliasType (ADVANCED, NORMAL)
• [ ] FontStyle, FontType, GridFitType

Not Implemented

• [ ] StaticText
• [ ] TextSnapshot
• [ ] StageText, StageTextInitOptions
• [ ] flash.text.engine (entire TLF package — TextBlock, TextLine, ElementFormat, FontDescription, etc.)

---

flash.geom

• [x] Point — full (x, y, length, add, clone, distance, equals, interpolate, normalize, offset, polar, subtract, etc.)
• [x] Rectangle — full (x, y, width, height, top, bottom, left, right, contains, containsPoint, containsRect, inflate, intersection, intersects, isEmpty, offset, union, etc.)
• [x] Matrix — full (a, b, c, d, tx, ty, clone, concat, createBox, createGradientBox, deltaTransformPoint, identity, invert, rotate, scale, transformPoint, translate)
• [x] ColorTransform — full (multipliers, offsets, color property)
• [x] Transform — concatenatedMatrix, concatenatedColorTransform, matrix, colorTransform
• [ ] Matrix3D
• [ ] Vector3D
• [ ] PerspectiveProjection
• [ ] Orientation3D
• [ ] Utils3D

---

flash.filters

• [x] BitmapFilter (base)
• [x] BlurFilter
• [x] DropShadowFilter
• [x] GlowFilter
• [x] BevelFilter
• [x] ConvolutionFilter
• [x] ColorMatrixFilter
• [x] DisplacementMapFilter
• [x] GradientBevelFilter
• [x] GradientGlowFilter
• [ ] ShaderFilter
• [ ] BitmapFilterQuality, BitmapFilterType constants

---

flash.media

Sound

• [x] Properties: bytesLoaded, bytesTotal, id3, isBuffering, isURLInaccessible, length, url
• [~] play — returns a silent dead SoundChannel; audio.ts exists but is not wired to Sound
• [~] load — empty body; no fetch, no bytesLoaded updates, no COMPLETE event
• [~] extract — returns 0; PCM extraction not implemented
• [~] close — no-op (derivative of load stub)

SoundChannel

• [x] Properties: leftPeak, rightPeak, position, soundTransform
• [~] stop — dispatches SOUND_COMPLETE (wrong; that fires on natural completion, not stop); no audio to stop anyway

SoundTransform

• [x] Properties: volume, pan, leftToLeft, leftToRight, rightToLeft, rightToRight

SoundMixer

• [~] computeSpectrum — empty no-op; no FFT/analyser wired up
• [~] stopAll — empty no-op (no audio state to stop)

SoundLoaderContext

• [x] Properties: bufferTime, checkPolicyFile

ID3Info

• [x] Properties: album, artist, comment, genre, songName, track, year

Not Implemented

• [~] Microphone (stub)
• [~] Camera (stub)
• [~] Video (stub)
• [ ] StageVideo
• [ ] StageWebView
• [ ] AudioDeviceManager
• [ ] H264VideoStreamSettings, VideoStreamSettings

---

flash.net

URLRequest

• [x] Properties: url, method, data, contentType, requestHeaders, digest

URLRequestHeader

• [x] Properties: name, value

URLLoader

• [x] Properties: data, dataFormat
• [x] Methods: close, load

URLLoaderDataFormat

• [x] Constants: TEXT, BINARY, VARIABLES

SharedObject

• [x] Properties: data, size, defaultObjectEncoding
• [x] Methods: clear, flush, getLocal, getRemote, deleteAll

FileReference

• [x] Properties: creationDate, modificationDate, name, size
• [x] Methods: cancel, save
• [~] browse — returns false without opening a file dialog; implement with
• [~] download — empty no-op; should fetch URL and trigger browser download

FileFilter

• [x] Properties: description, extension, macType

Not Implemented

• [ ] Socket, XMLSocket, SecureSocket, ServerSocket
• [ ] NetConnection, NetStream, NetGroup
• [ ] LocalConnection
• [ ] URLStream, URLVariables
• [ ] URLRequestDefaults, URLRequestMethod
• [ ] Responder
• [ ] ObjectEncoding (constants only, no AMF)
• [ ] DatagramSocket
• [ ] NetworkInfo, NetworkInterface, InterfaceAddress

---

flash.ui

Keyboard

• [x] Key code constants (A-Z, 0-9, F1-F12, arrows, modifiers, numpad, punctuation)
• [x] Methods: isAccessible

Mouse

• [x] Properties: cursor, supportsCursor, supportsNativeCursor
• [x] Methods: hide, show, registerCursor, unregisterCursor

ContextMenu

• [x] Properties: customItems
• [x] Methods: hideBuiltInItems, clone

ContextMenuItem

• [x] Properties: caption, enabled, separatorBefore, visible
• [x] Methods: clone

Not Implemented

• [ ] GameInput, GameInputControl, GameInputDevice
• [ ] Multitouch, MultitouchInputMode
• [ ] MouseCursorData
• [ ] KeyboardType, KeyLocation (constants only)

---

flash.utils

ByteArray

• [x] Properties: length, bytesAvailable, position, endian, objectEncoding
• [x] Methods: read*/write* (Boolean, Byte, Double, Float, Int, Short, UTF, UTFBytes, UnsignedByte, UnsignedInt, UnsignedShort, MultiByte, Object)
• [x] Methods: clear, deflate, inflate, compress, uncompress, toString

Timer

• [x] (via flash.events.TimerEvent dispatch)

Dictionary

• [x] (maps to plain object with weak key semantics stubbed)

Proxy

• [~] Stub

Endian

• [x] Constants: BIG_ENDIAN, LITTLE_ENDIAN

Global Functions

• [x] getQualifiedClassName
• [x] getQualifiedSuperclassName
• [x] getDefinitionByName
• [x] describeType
• [ ] getTimer
• [ ] setTimeout / setInterval / clearTimeout / clearInterval
• [ ] escapeMultiByte / unescapeMultiByte
• [ ] flash_proxy namespace

Not Implemented

• [ ] CompressionAlgorithm (constants only)
• [ ] IDataInput / IDataOutput (interfaces only, used by ByteArray)
• [ ] IExternalizable

---

flash.system

Capabilities

• [x] Static properties: avHardwareDisable, hasAccessibility, hasAudio, hasMP3, hasVideoEncoder, isDebugger, language, localFileReadDisable, manufacturer, os, playerType, screenColor, screenDPI, screenResolutionX/Y, version

Security

• [x] Constants: LOCAL_TRUSTED, LOCAL_WITH_FILE, LOCAL_WITH_NETWORK, REMOTE
• [x] Properties: sandboxType, exactSettings, disableAVM1Loading
• [ ] Methods: allowDomain, allowInsecureDomain, loadPolicyFile, showSettings

ApplicationDomain

• [x] Methods: getDefinition, hasDefinition
• [x] Static: currentDomain

LoaderContext

• [x] Properties: checkPolicyFile, applicationDomain

System

• [ ] gc, pause, resume, exit
• [ ] totalMemory, freeMemory, privateMemory
• [ ] useCodePage, ime

Not Implemented

• [ ] IME, IMEConversionMode
• [ ] SecurityDomain, SecurityPanel
• [ ] Worker, WorkerDomain, WorkerState
• [ ] MessageChannel, MessageChannelState
• [ ] ImageDecodingPolicy
• [ ] TouchscreenType

---

flash.errors

• [ ] EOFError
• [ ] IllegalOperationError
• [ ] InvalidSWFError
• [ ] IOError
• [ ] MemoryError
• [ ] ScriptTimeoutError
• [ ] StackOverflowError

---

flash.external

• [ ] ExternalInterface (callProperty, addCallback, available, objectID, marshallExceptions)

---

flash.printing

• [ ] PrintJob, PrintJobOptions, PrintJobOrientation, PrintMethod, PrintUIOptions

---

flash.xml

• [~] XMLDocument (legacy E4X stub)
• [~] XMLNode (legacy E4X stub)
• [ ] XMLNodeType

---

flash.accessibility

• [ ] Accessibility
• [ ] AccessibilityImplementation
• [ ] AccessibilityProperties

---

Packages Not Applicable to Game Decompilation

These packages exist in the AS3 reference but are irrelevant for Flash game lifting:

• flash.concurrent — Worker threading (rare in games)
• flash.crypto — Cryptographic operations
• flash.data — SQLite (AIR only)
• flash.desktop — Clipboard, NativeApplication (AIR only)
• flash.display3D / flash.display3D.textures — Stage3D (separate GPU pipeline)
• flash.filesystem — File I/O (AIR only)
• flash.globalization — Locale formatting
• flash.html — HTMLLoader (AIR only)
• flash.net.dns / flash.net.drm — DNS/DRM (AIR only)
• flash.notifications — Push notifications (AIR only)
• flash.permissions — Permission manager (AIR/mobile only)
• flash.profiler — Telemetry
• flash.sampler — Memory sampling
• flash.security — X.509, XML signatures
• flash.sensors — Accelerometer, Geolocation (mobile only)
• flash.text.engine — TLF text engine (rarely used in games)
• flash.text.ime — IME composition
• flashx.textLayout — TLF framework
• fl.* — Flash IDE components (not in SWFs)