osName

The name of the operating system on which After Effects is running.NOTE: As of Windows 7, this attribute returns a blank value. Use $.os instead.String; rea

beginUndoGroup()

Marks the beginning of an undo group, which allows a script to logically group all of its actions as a single undoable action for use with the Edit > Undo/R

addCamera()

Creates a new camera layer and adds the CameraLayer object to this collection.The new layer honors the Create Layers at Composition Start Time preference.na

renderer

The current rendering plug-in module to be used to render this composition, as set in the Advanced tab of the Composition Settings dialog box. Allowed value

addText()

Creates a new point text layer and adds the new TextLayer object to this collection.To create a paragraph box text layer, use the addBoxText method. For mor

endUndoGroup()

Marks the end of an undo group begun with the app.beginUndoGroup method. You can use this method to place an end to an undo group in the middle of a script,

guessPulldown()

Sets fieldSeparationType and removePulldown to the best estimates for this footage source. If isStill is true, no change is made.The method to use for estim

conformFrameRate

A frame rate to use instead of the nativeFrameRate value. If set to 0, the nativeFrameRate is used instead.It is an error to set this value if FootageSource

id

A unique and persistent identification number used internally to identify an item between sessions. The value of the ID remains the same when the project is

scheduleTask()

Schedules the specified JavaScript for delayed execution.stringToExecute A string containing JavaScript to be executed.delay A number of milliseconds to wai