True if After Effects is running as a render engine.Boolean; read-only.

Project object

The project object represents an After Effects project. Attributes provide access to specific objects within the project, such as imported files or footage

OutputModule object

An OutputModule object of a RenderQueueItem generates a single file or sequence via a render operation, and contains attributes and methods relating to the


When true the default , After Effects attempts to display a dialog box that allows you to save the current project if an error causes the application to qui


Removes the specified keyframe from the named property. If no keyframe with the specified index exists, generates an exception and displays an error.When a


The names of all output-module templates available in the local installation of After Effects.Array of strings; read-only.


An alphanumeric string indicating which version of After Effects is running.String; read-only.

Property object

The Property object contains value, keyframe, and expression information about a particular AE property of a layer. An AE property is an value, often animat

FootageSource object

The FootageSource object holds information describing the source of some footage. It is used as themainSource of a FootageItem, or the proxySource of a Comp


Creates a new project in After Effects, replicating the File > New > New Project menu command.If the current project has been edited, the user is prompted t