GCHandle

Overview

GC handles are handles to an object that are kept in memory even if they're not referenced by anything the GC can found. This can be used to hold objects in non managed memory. GC Handles need to be explicitly freed.

Location

Implements

 

constructor    (declared in Object) UIKit for Mac

Default constructor.

 

constructor

 

GCHandle()

 

init()

 

GCHandle()

 

Sub New()

constructor (NativeInt) Android, iOS, iOS Simulator, Mac Catalyst, macOS, tvOS, tvOS Simulator, Ubuntu, watchOS, watchOS Simulator, WebAssembly, Windows

 

constructor(aHandle: NativeInt)

 

GCHandle(NativeInt aHandle)

 

init(_ aHandle: NativeInt)

 

GCHandle(NativeInt aHandle)

 

Sub New(aHandle As NativeInt)

Parameters:

  • aHandle:

Allocate

Allocates a gc handle for an object.

 

class method Allocate(aValue: Object): GCHandle

 

static GCHandle Allocate(Object aValue)

 

static func Allocate(_ aValue: Object) -> GCHandle

 

static GCHandle Allocate(Object aValue)

 

Shared Function Allocate(aValue As Object) As GCHandle

Parameters:

  • aValue:

Dispose UIKit for Mac

Dispose this GC handle.

 

method Dispose

 

Dispose()

 

func Dispose()

 

Dispose()

 

Sub Dispose()

Equals (Object): Boolean  virtual    (declared in Object) Android, iOS, iOS Simulator, Mac Catalyst, macOS, tvOS, tvOS Simulator, Ubuntu, watchOS, watchOS Simulator, WebAssembly, Windows

 

method Equals(aOther: Object): Boolean

 

Boolean Equals(Object aOther)

 

func Equals(_ aOther: Object) -> Boolean

 

Boolean Equals(Object aOther)

 

Function Equals(aOther As Object) As Boolean

Parameters:

  • aOther:

Equals (Object): Boolean  virtual    (declared in Object) UIKit for Mac

Returns true if the target object matches this one, by default compares the reference.

 

method Equals(obj: Object): Boolean

 

Boolean Equals(Object obj)

 

func Equals(_ obj: Object) -> Boolean

 

Boolean Equals(Object obj)

 

Function Equals(obj As Object) As Boolean

Parameters:

  • obj: the reference to compare this with.

Finalize  protected virtual    (declared in Object) UIKit for Mac

Finalizer implementation. If not overriden it's not called at all, the runtime checks if there is an override before calling a finalizer.

 

method Finalize

 

Finalize()

 

func Finalize()

 

Finalize()

 

Sub Finalize()

GetHashCode  virtual    (declared in Object)

Returns a hashcode for this object. Overriden implementations should make sure that the number returned here is constant given the same object.

 

method GetHashCode: Int32

 

Int32 GetHashCode()

 

func GetHashCode() -> Int32

 

Int32 GetHashCode()

 

Function GetHashCode() As Int32

GetType    (declared in Object)

Returns the actual type of this class

 

method GetType: Type

 

Type GetType()

 

func GetType() -> Type

 

Type GetType()

 

Function GetType() As Type

Handle

Returns the handle value. This number has no relation to the object referenced, other than thhrough the GC Handles.

 

property Handle: NativeInt read;

 

NativeInt Handle { get; }

 

var Handle: NativeInt { get{} }

 

NativeInt Handle { __get; }

 

ReadOnly Property Handle() As NativeInt

HasValue

Returns true if this handle has a value.

 

property HasValue: Boolean read;

 

Boolean HasValue { get; }

 

var HasValue: Boolean { get{} }

 

Boolean HasValue { __get; }

 

ReadOnly Property HasValue() As Boolean

ReferenceEquals    (declared in Object)

Compares two references for equivalence (even if they have an equals operator)

 

class method ReferenceEquals(a: Object; b: Object): Boolean

 

static Boolean ReferenceEquals(Object a, Object b)

 

static func ReferenceEquals(_ a: Object, _ b: Object) -> Boolean

 

static Boolean ReferenceEquals(Object a, Object b)

 

Shared Function ReferenceEquals(a As Object, b As Object) As Boolean

Parameters:

  • a: left value
  • b: right value

Target

Returns the value for this GC handle.

 

property Target: Object read;

 

Object Target { get; }

 

var Target: Object { get{} }

 

Object Target { __get; }

 

ReadOnly Property Target() As Object

ToString  virtual    (declared in Object)

Gets the string representation of this method.

 

method ToString: String

 

String ToString()

 

func ToString() -> String

 

String ToString()

 

Function ToString() As String

 

Handle

Returns the handle value. This number has no relation to the object referenced, other than thhrough the GC Handles.

 

property Handle: NativeInt read;

 

NativeInt Handle { get; }

 

var Handle: NativeInt { get{} }

 

NativeInt Handle { __get; }

 

ReadOnly Property Handle() As NativeInt

HasValue

Returns true if this handle has a value.

 

property HasValue: Boolean read;

 

Boolean HasValue { get; }

 

var HasValue: Boolean { get{} }

 

Boolean HasValue { __get; }

 

ReadOnly Property HasValue() As Boolean

Target

Returns the value for this GC handle.

 

property Target: Object read;

 

Object Target { get; }

 

var Target: Object { get{} }

 

Object Target { __get; }

 

ReadOnly Property Target() As Object

 

Allocate

Allocates a gc handle for an object.

 

class method Allocate(aValue: Object): GCHandle

 

static GCHandle Allocate(Object aValue)

 

static func Allocate(_ aValue: Object) -> GCHandle

 

static GCHandle Allocate(Object aValue)

 

Shared Function Allocate(aValue As Object) As GCHandle

Parameters:

  • aValue:

ReferenceEquals    (declared in Object)

Compares two references for equivalence (even if they have an equals operator)

 

class method ReferenceEquals(a: Object; b: Object): Boolean

 

static Boolean ReferenceEquals(Object a, Object b)

 

static func ReferenceEquals(_ a: Object, _ b: Object) -> Boolean

 

static Boolean ReferenceEquals(Object a, Object b)

 

Shared Function ReferenceEquals(a As Object, b As Object) As Boolean

Parameters:

  • a: left value
  • b: right value

 

constructor    (declared in Object) UIKit for Mac

Default constructor.

 

constructor

 

GCHandle()

 

init()

 

GCHandle()

 

Sub New()

constructor (NativeInt) Android, iOS, iOS Simulator, Mac Catalyst, macOS, tvOS, tvOS Simulator, Ubuntu, watchOS, watchOS Simulator, WebAssembly, Windows

 

constructor(aHandle: NativeInt)

 

GCHandle(NativeInt aHandle)

 

init(_ aHandle: NativeInt)

 

GCHandle(NativeInt aHandle)

 

Sub New(aHandle As NativeInt)

Parameters:

  • aHandle:

Dispose UIKit for Mac

Dispose this GC handle.

 

method Dispose

 

Dispose()

 

func Dispose()

 

Dispose()

 

Sub Dispose()

Equals (Object): Boolean  virtual    (declared in Object) Android, iOS, iOS Simulator, Mac Catalyst, macOS, tvOS, tvOS Simulator, Ubuntu, watchOS, watchOS Simulator, WebAssembly, Windows

 

method Equals(aOther: Object): Boolean

 

Boolean Equals(Object aOther)

 

func Equals(_ aOther: Object) -> Boolean

 

Boolean Equals(Object aOther)

 

Function Equals(aOther As Object) As Boolean

Parameters:

  • aOther:

Equals (Object): Boolean  virtual    (declared in Object) UIKit for Mac

Returns true if the target object matches this one, by default compares the reference.

 

method Equals(obj: Object): Boolean

 

Boolean Equals(Object obj)

 

func Equals(_ obj: Object) -> Boolean

 

Boolean Equals(Object obj)

 

Function Equals(obj As Object) As Boolean

Parameters:

  • obj: the reference to compare this with.

Finalize  protected virtual    (declared in Object) UIKit for Mac

Finalizer implementation. If not overriden it's not called at all, the runtime checks if there is an override before calling a finalizer.

 

method Finalize

 

Finalize()

 

func Finalize()

 

Finalize()

 

Sub Finalize()

GetHashCode  virtual    (declared in Object)

Returns a hashcode for this object. Overriden implementations should make sure that the number returned here is constant given the same object.

 

method GetHashCode: Int32

 

Int32 GetHashCode()

 

func GetHashCode() -> Int32

 

Int32 GetHashCode()

 

Function GetHashCode() As Int32

GetType    (declared in Object)

Returns the actual type of this class

 

method GetType: Type

 

Type GetType()

 

func GetType() -> Type

 

Type GetType()

 

Function GetType() As Type

ToString  virtual    (declared in Object)

Gets the string representation of this method.

 

method ToString: String

 

String ToString()

 

func ToString() -> String

 

String ToString()

 

Function ToString() As String