Application object

Provides access to objects and application settings within the After Effects application. The single global object is always available by its name, app.Attr

mainSource

The footage source, an object that contains all of the settings related to that footage item, including those that are normally accessed through the Interpr

precompose()

Creates a new CompItem object and moves the specified layers into its layer collection. It removes the individual layers from this collection, and adds the

displayStartTime

The time set as the beginning of the composition, in seconds. This is the equivalent of the Start Timecode or Start Frame setting in the Composition Setting

timeDisplayType

The time display style, corresponding to the Time Display Style section in the Project Settings dialog box.A TimeDisplayType enumerated value; read/write. O

speed

The speed value of the keyframe. The units depend on the type of keyframe, and are displayed in the KeyframeVelocity dialog box.Floating-point value; read/w

dropFrame

When true, indicates that the composition uses drop-frame timecode. When false, indicates non-drop-frame timecode. This corresponds to the setting in the Co

importFileWithDialog()

Shows an Import File dialog box. Same as the File > Import > File command.Array of Item objects created during import; or null if the user cancels the dialo

feetFramesFilmType

The Use Feet + Frames menu setting in the Project Settings dialog box.Use this attribute instead of the old timecodeFilmType attribute.A FeetFramesFilmType

motionBlurAdaptiveSampleLimit

The maximum number of motion blur samples of 2D layer motion. This corresponds to the Adaptive Sample Limit setting in the Advanced tab of the Composition S