BStrWrapper Class

Reference

Definition

Namespace:: System.Runtime.InteropServices

Assembly:: System.Runtime.InteropServices.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Source:: BStrWrapper.cs

Source:: BStrWrapper.cs

Source:: BStrWrapper.cs

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.

Caution

BStrWrapper and support for marshalling to the VARIANT type may be unavailable in future releases.

Marshals data of type VT_BSTR from managed to unmanaged code. This class cannot be inherited.

public ref class BStrWrapper sealed

[System.Obsolete("BStrWrapper and support for marshalling to the VARIANT type may be unavailable in future releases.")]
public sealed class BStrWrapper

public sealed class BStrWrapper

[System.Runtime.InteropServices.ComVisible(true)]
[System.Serializable]
public sealed class BStrWrapper

[<System.Obsolete("BStrWrapper and support for marshalling to the VARIANT type may be unavailable in future releases.")>]
type BStrWrapper = class

type BStrWrapper = class

[<System.Runtime.InteropServices.ComVisible(true)>]
[<System.Serializable>]
type BStrWrapper = class

Public NotInheritable Class BStrWrapper

Inheritance: Object
BStrWrapper

Attributes: ObsoleteAttribute ComVisibleAttribute SerializableAttribute

Remarks

The BStrWrapper class controls how the wrapped object is marshaled when passed as VARIANT. You can wrap a String object in a BStrWrapper object to marshal it as VT_BSTR. BStrWrapper is useful when passing a null string to unmanaged code. Without BStrWrapper, a null string is passed as VT_EMPTY; however, wrapping the string with BStrWrapper ensures that the null string is passed as VT_BSTR.

Constructors

BStrWrapper(Object)	Initializes a new instance of the BStrWrapper class with the specified Object object.
BStrWrapper(String)	Initializes a new instance of the BStrWrapper class with the specified String object.

Properties

WrappedObject

Gets the wrapped String object to marshal as type VT_BSTR.

Methods

Equals(Object)	Determines whether the specified object is equal to the current object. (Inherited from Object)
GetHashCode()	Serves as the default hash function. (Inherited from Object)
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 a string that represents the current object. (Inherited from Object)

Applies to

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