Global Variable

NSURLIsAliasFileKey

Key for determining whether the file is an alias, returned as a Boolean NSNumber object (read-only).

Declaration

const NSURLResourceKey NSURLIsAliasFileKey;

See Also

File Keys

NSURLFileAllocatedSizeKey

Key for the total size allocated on disk for the file, returned as an NSNumber object (read-only).

NSURLFileProtectionType

Protection level values that can be associated with a URL resource key.

NSURLFileResourceIdentifierKey

The resource’s unique identifier, returned as an id (read-only).

NSURLFileResourceTypeKey

The resource’s object type, returned as an NSString object (read-only). See NSURLFileResourceType for possible values.

NSURLFileSecurityKey

The resource’s security information, returned as an NSFileSecurity object (read-write).

NSURLFileSizeKey

Key for the file’s size in bytes, returned as an NSNumber object (read-only).

NSURLIsPackageKey

Key for determining whether the resource is a file package, returned as a Boolean NSNumber object (read-write in macOS 10.8 and later, read-only in previous versions). A true value means that the resource is a file package.

NSURLIsRegularFileKey

Key for determining whether the resource is a regular file, as opposed to a directory or a symbolic link. Returned as a Boolean NSNumber object (read-only).

NSURLPreferredIOBlockSizeKey

The optimal block size to use when reading or writing this file's data, returned as an NSNumber object, or nil if the preferred size is not available (read-only).

NSURLTotalFileAllocatedSizeKey

Key for the total allocated size of the file in bytes, returned as an NSNumber object (read-only). This includes the size of any file metadata.

NSURLTotalFileSizeKey

Key for the total displayable size of the file in bytes, returned as an NSNumber object (read-only). This includes the size of any file metadata.