GCHandle Structure

Microsoft Silverlight will reach end of support after October 2021. Learn more.

This API supports the .NET Framework infrastructure and is not intended to be used directly from your code.

Provides a means for accessing a managed object from unmanaged memory.

Namespace: System.Runtime.InteropServices
Assembly: mscorlib (in mscorlib.dll)

Syntax

'Declaration
<ComVisibleAttribute(True)> _
Public Structure GCHandle

[ComVisibleAttribute(true)]
public struct GCHandle

The GCHandle type exposes the following members.

	Name	Description
	IsAllocated	Gets a value indicating whether the handle is allocated.
	Target	Gets or sets the object this handle represents.

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	Name	Description
	AddrOfPinnedObject	Security Critical. Retrieves the address of an object in a Pinned handle.
	Alloc(Object)	Security Critical. Allocates a Normal handle for the specified object.
	Alloc(Object, GCHandleType)	Security Critical. Allocates a handle of the specified type for the specified object.
	Equals	Determines whether the specified GCHandle object is equal to the current GCHandle object. (Overrides ValueType.Equals(Object).)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
	Free	Security Critical. Releases a GCHandle.
	GetHashCode	Returns an identifier for the current GCHandle object. (Overrides ValueType.GetHashCode().)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ToString	Returns the fully qualified type name of this instance. (Inherited from ValueType.)

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	Name	Description
	Explicit(GCHandle to IntPtr)	A GCHandle is stored using an internal integer representation.
	Explicit(IntPtr to GCHandle)	Security Critical. A GCHandle is stored using an internal integer representation.

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Supported in: 5, 4, 3

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

Supported in: Xbox 360, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.