Adobe 12040118 - After Effects Standard Using Manual page 39

Help
Using Help
Method
s e t Prox y Wi t h S o l i d ( )
setProxyWith P la ceh ol der ()
setProxyTo No n e ()
Method from Item object (See"Item object" on page 97)
Method
rem ove()
AVItem duration attribute
app.project.ite m(index). dur at ion
Description
The duration attribute returns the duration, in seconds, of the item. This attribute is read-only unless it is a
CompItem.
Permissible range of values is [0..10,800]. In a FootageItem, duration is linked to the duration of the
mainSource; in a CompItem, it is linked to the duration of the composition. This value may be written only
in a CompItem. It is an error to change this value if the item is a FootageItem.
Note: Still footage items have a duration of 0.
Type
Floating-point value; seconds. Read/write when item is a CompItem; otherwise, read-only.
AVItem footageMissing attribute
app.project.ite m(index). footageMissing
Description
The footageMissing attribute is true if the AVItem cannot be found or if it is a placeholder.
Type
Boolean; read-only.
AVItem frameDuration attribute
app.project.ite m(index). f r a m e D u r a t i o n
Description
The frameDuration attribute returns the length, in seconds, of a frame for this AVItem.
Permitted range is [1/99 .. 1 ]. This is the reciprocal of frameRate. When you set the frameDuration, you are
really storing the reciprocal as a new frameRate.
Using Help
Reference
see "AVItem setProxyWithSolid()
method" on page 43
see "AVItem setProxyWithPlaceholder()
method" on page 42
see "AVItem setProxyToNone() method"
on page 42
Reference
see "Item remove() method" on page 99 deletes the item from the project
Reference
Back
Description
sets a solid as a proxy (feature available only via
scripting)
sets a placeholder as a proxy
removes the proxy
Description
Back
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