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Marshal.GetUniqueObjectForIUnknown Method

.NET Framework 2.0

Other Versions

Note: This method is new in the .NET Framework version 2.0.

Creates a unique runtime callable wrapper (RCW) object for a given IUnknown.

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

Syntax

C++

Copy

public static Object GetUniqueObjectForIUnknown (
	IntPtr unknown
)

Copy

public static Object GetUniqueObjectForIUnknown (
	IntPtr unknown
)

JScript

Copy

public static function GetUniqueObjectForIUnknown (
	unknown : IntPtr
) : Object

Parameters

unknown: A managed pointer to an IUnknown.

Return Value

A unique runtime callable wrapper (RCW) for a given IUnknown.

Remarks

The GetUniqueObjectForIUnknown method ensures that you receive a unique runtime callable wrapper (RCW) because it does not match an IUnknown to an existing object. Use this method for cases where you need to create a unique RCW that is not impacted by other code calling the ReleaseComObject method.

.NET Framework Security

SecurityPermission for permission to call unmanaged code. Associated enumeration: UnmanagedCode Security action: LinkDemand

Platforms

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

Version Information

.NET Framework

Supported in: 2.0

Reference

Marshal Class
Marshal Members
System.Runtime.InteropServices Namespace

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