VariantWrapper(Object) Konstruktor

Definisi

Ruang nama:

System.Runtime.InteropServices

Rakitan:

System.Runtime.InteropServices.dll

Sumber:

VariantWrapper.cs

Menginisialisasi instans VariantWrapper baru kelas untuk parameter yang ditentukan Object .

public:
 VariantWrapper(System::Object ^ obj);

public VariantWrapper (object? obj);

new System.Runtime.InteropServices.VariantWrapper : obj -> System.Runtime.InteropServices.VariantWrapper

Public Sub New (obj As Object)

Parameter

obj

Object

Objek untuk marshal.

Contoh

Contoh kode berikut menunjukkan cara menggunakan VariantWrapper kelas untuk membungkus Object yang diteruskan oleh interop marshaler sebagai VT_VARIANT | VT_BYREF.

// Create an instance of an unmanged COM object.
UnmanagedComClass UnmanagedComClassInstance = new UnmanagedComClass();

// Create a string to pass to the COM object.
string helloString = "Hello World!";

// Wrap the string with the VariantWrapper class.
object var = new System.Runtime.InteropServices.VariantWrapper(helloString);

// Pass the wrapped object.
UnmanagedComClassInstance.MethodWithStringRefParam(ref var);

' Create an instance of an unmanged COM object.
Dim UnmanagedComClassInstance As New UnmanagedComClass()

' Create a string to pass to the COM object.
Dim helloString As String = "Hello World!"

' Wrap the string with the VariantWrapper class.
Dim var As Object = New System.Runtime.InteropServices.VariantWrapper(helloString)

' Pass the wrapped object.
UnmanagedComClassInstance.MethodWithStringRefParam(var)