Initializes and returns a composition layer using the Quartz Composer composition in the specified file.
Original signature is '- (id)initWithFile:(NSString*)path'
Available in Mac OS X v10.5 and later.


- path (NSString)
- A string that specifies the location of a Quartz Composer composition.

The initialized QCCompositionLayer object or nil if initialization is not successful.

- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)