VariantWrapper(Object) 建構函式

定義

命名空間:
System.Runtime.InteropServices
組件:
mscorlib.dll, System.Runtime.InteropServices.dll
組件:
netstandard.dll, System.Runtime.InteropServices.dll
組件:
System.Runtime.InteropServices.dll
組件:
mscorlib.dll
組件:
netstandard.dll
來源:
VariantWrapper.cs
來源:
VariantWrapper.cs
來源:
VariantWrapper.cs
來源:
VariantWrapper.cs
來源:
VariantWrapper.cs

初始化該類別的新實例 VariantWrapper ，針對指定 Object 參數。

public:
 VariantWrapper(System::Object ^ obj);
public VariantWrapper(object obj);
public VariantWrapper(object? obj);
new System.Runtime.InteropServices.VariantWrapper : obj -> System.Runtime.InteropServices.VariantWrapper
Public Sub New (obj As Object)

參數

obj
Object

目標是給元帥。

範例

以下程式碼範例示範如何使用 VariantWrapper 類別包裝 互 Object 通 marshaler 所傳遞的 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)

適用於