valueAtTime()

The value of the named property as evaluated at the specified time.Note that the type of value returned is not made explicit; it will be of a different type

time

The current time of the layer, expressed in composition time seconds .Floating-point value; read-only.

workAreaStart

The time when the Composition work area begins, in seconds.Floating-point; read/write.

active

When true, this property is active. For a layer, this corresponds to the setting of the eyeball icon and if the current time is between the layerメs in and o

selected

When true, this item is selected. Multiple items can be selected at the same time. Set to true to select the item programmatically, or to false to deselect

isStill

When true the footage is still; when false, it has a time-based component.Examples of still footage are JPEG files, solids, and placeholders with duration o

skipFrames

The number of frames to skip when rendering this item. Use this to do rendering tests that are faster than a full render.A value of 0 skip no frames, and re

stretch

The layerメs time stretch, expressed as a percentage. A value of 100 means no stretch. Values between 0 and 1 are set to 1, and values between -1 and 0 not i

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

startTime

The day and time that this item started rendering.Date object, or null if the item has not started rendering; read-only.