BStrWrapper Class
Marshals data of type VT_BSTR from managed to unmanaged code. This class cannot be inherited.
Assembly: mscorlib (in mscorlib.dll)
| Name | Description | |
|---|---|---|
![]() | 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. |
| Name | Description | |
|---|---|---|
![]() | WrappedObject | Gets the wrapped String object to marshal as type VT_BSTR. |
| Name | Description | |
|---|---|---|
![]() | 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() | |
![]() | ToString() | Returns a string that represents the current object.(Inherited from Object.) |
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.
Available since 8
.NET Framework
Available since 2.0
Portable Class Library
Supported in: portable .NET platforms
Windows Phone
Available since 8.1
Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

