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UnknownWrapper Class

Wraps objects the marshaler should marshal as a VT_UNKNOWN.

System.Object
  System.Runtime.InteropServices.UnknownWrapper

Namespace:  System.Runtime.InteropServices
Assembly:  mscorlib (in mscorlib.dll)
[SerializableAttribute]
[ComVisibleAttribute(true)]
public sealed class UnknownWrapper

The UnknownWrapper type exposes the following members.

  Name Description
Public method UnknownWrapper Initializes a new instance of the UnknownWrapper class with the object to be wrapped.
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  Name Description
Public property WrappedObject Gets the object contained by this wrapper.
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  Name Description
Public method Equals(Object) Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected method Finalize Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public method GetHashCode Serves as a hash function for a particular type. (Inherited from Object.)
Public method GetType Gets the Type of the current instance. (Inherited from Object.)
Protected method MemberwiseClone Creates a shallow copy of the current Object. (Inherited from Object.)
Public method ToString Returns a string that represents the current object. (Inherited from Object.)
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Only applies when the managed signature of a method takes an object.

 int MyMethod(Object o); //Managed signature
     HRESULT MyMethod(VARIANT o); //COM signature
     MyObject o = new MyObject();
     MyMethod(o); //o gets passed as VARIANT VT_DISPATCH
     MyMethod(new UnknownWrapper(o)); //o gets passed as VARIANT VT_UNKNOWN

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
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