BStrWrapper Class
Definition
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
-
BStrWrapper
- Attributes
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 |
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
.NET
피드백
https://aka.ms/ContentUserFeedback
출시 예정: 2024년 내내 콘텐츠에 대한 피드백 메커니즘으로 GitHub 문제를 단계적으로 폐지하고 이를 새로운 피드백 시스템으로 바꿀 예정입니다. 자세한 내용은 다음을 참조하세요.다음에 대한 사용자 의견 제출 및 보기