AvailabilityAttribute.Unavailable Property
Definition
Important
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The API does currently not exist on a given platform.
public ObjCRuntime.Platform Unavailable { get; set; }member this.Unavailable : ObjCRuntime.Platform with get, setProperty Value
Remarks
The API has never existed in a given platform (e.g. available in iOS but not in macOS); this property is not versioned (can only be Platform.{None,Mac,iOS}) and applies to the entire lifetime (up to present) of a platform. "Unavailable" may be replaced in future versions by an "Introduced."