imageReps(withContentsOf:)
Creates and returns an array of image representation objects initialized using the contents of the specified URL.
Declaration
class func imageReps(withContentsOf url: URL) -> [NSImageRep]?Parameters
- url:
The URL pointing to the image data.
Return Value
An array of image representation objects. The array contains one object for each image in the data at the specified URL.
Discussion
If sent to the NSImageRep class object, this method returns an array of objects (all newly allocated instances of a subclass of NSImageRep) that have been initialized with the contents of the specified URL. If sent to a subclass of NSImageRep that recognizes the data at the specified URL, it returns an array of objects (all instances of that subclass) that have been initialized with the contents of that URL.
This method returns nil in any of the following cases:
The message is sent to the
NSImageRepclass object and there are no subclasses in theNSImageRepclass registry that handle data in the specified URL.The message is sent to a subclass of
NSImageRepand that subclass cannot handle data in the specified URL.The
NSImageRepsubclass is unable to initialize itself with the contents of the specified URL.
The NSImageRep subclass is initialized by creating an NSData object based on the contents of the specified URL and passing it to the imageRepsWithData: method.