INSDiscardableContent Interface

Definition

Namespace:: Foundation

Assembly:: Microsoft.iOS.dll

Assembly:: Microsoft.MacCatalyst.dll

Assembly:: Microsoft.macOS.dll

Assembly:: Microsoft.tvOS.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Interface for a class that can save memory by discarding some of its subcomponents when they are not in use.

[Foundation.Protocol(Name="NSDiscardableContent", WrapperType=typeof(Foundation.NSDiscardableContentWrapper))]
[Foundation.ProtocolMember(IsProperty=false, IsRequired=true, IsStatic=false, Name="BeginContentAccess", ReturnType=typeof(System.Boolean), Selector="beginContentAccess")]
[Foundation.ProtocolMember(IsProperty=false, IsRequired=true, IsStatic=false, Name="EndContentAccess", Selector="endContentAccess")]
[Foundation.ProtocolMember(IsProperty=false, IsRequired=true, IsStatic=false, Name="DiscardContentIfPossible", Selector="discardContentIfPossible")]
[Foundation.ProtocolMember(ArgumentSemantic=ObjCRuntime.ArgumentSemantic.None, GetterSelector="isContentDiscarded", IsProperty=true, IsRequired=true, IsStatic=false, Name="IsContentDiscarded", PropertyType=typeof(System.Boolean), Selector="isContentDiscarded")]
public interface INSDiscardableContent : IDisposable, ObjCRuntime.INativeObject

[<Foundation.Protocol(Name="NSDiscardableContent", WrapperType=typeof(Foundation.NSDiscardableContentWrapper))>]
[<Foundation.ProtocolMember(IsProperty=false, IsRequired=true, IsStatic=false, Name="BeginContentAccess", ReturnType=typeof(System.Boolean), Selector="beginContentAccess")>]
[<Foundation.ProtocolMember(IsProperty=false, IsRequired=true, IsStatic=false, Name="EndContentAccess", Selector="endContentAccess")>]
[<Foundation.ProtocolMember(IsProperty=false, IsRequired=true, IsStatic=false, Name="DiscardContentIfPossible", Selector="discardContentIfPossible")>]
[<Foundation.ProtocolMember(ArgumentSemantic=ObjCRuntime.ArgumentSemantic.None, GetterSelector="isContentDiscarded", IsProperty=true, IsRequired=true, IsStatic=false, Name="IsContentDiscarded", PropertyType=typeof(System.Boolean), Selector="isContentDiscarded")>]
type INSDiscardableContent = interface
    interface INativeObject
    interface IDisposable

Derived: Foundation.NSPurgeableData

Attributes: ProtocolAttribute ProtocolMemberAttribute

Implements: INativeObject IDisposable

Properties

Name	Description
Handle	Handle (pointer) to the unmanaged object representation. (Inherited from INativeObject)
IsContentDiscarded	Gets a Boolean value that tells whether the content has been discarded.

Methods

Name	Description
BeginContentAccess()	Requests access to the content, and returns `true` if the contents are available and were successfully accessed. (Otherwise, returns `false`.)
DiscardContentIfPossible()	Discards the content if it is not being accessed.
EndContentAccess()	Indicates that access to the content is no longer needed.

Extension Methods

Name	Description
GetHandle(INativeObject)
GetNonNullHandle(INativeObject, String)

Applies to