localizedReferenceDocumentation(forFilterName:)
Returns the location of the localized reference documentation that describes the filter.
Declaration
class func localizedReferenceDocumentation(forFilterName filterName: String) -> URL?Parameters
- filterName:
The filter name.
Return Value
A URL that specifies the location of the localized documentation, or nil if the filter does not provide localized reference documentation.
Discussion
The URL can be a local file or a remote document on a web server. Because filters created prior to OS X v10.5 could return nil, you should be make sure that your code handles this case gracefully.