RealProxy.SetCOMIUnknown(IntPtr) 方法
定義
重要
部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。
存放目前執行個體所代表物件的 Unmanaged Proxy。
public:
virtual void SetCOMIUnknown(IntPtr i);public virtual void SetCOMIUnknown (IntPtr i);abstract member SetCOMIUnknown : nativeint -> unit
override this.SetCOMIUnknown : nativeint -> unitPublic Overridable Sub SetCOMIUnknown (i As IntPtr)參數
- i
-
IntPtr
nativeint
指標，指向目前 Proxy 執行個體所代表物件的 IUnknown 介面。
範例
[SecurityPermission(SecurityAction::LinkDemand, Flags = SecurityPermissionFlag::Infrastructure)]
IntPtr SupportsInterface( Guid * /*myGuid*/ )
{
Console::WriteLine( "SupportsInterface method called" );
// Object reference is requested for communication with unmanaged objects
// in the current process through COM.
IntPtr myIntPtr = this->GetCOMIUnknown( false );
// Stores an unmanaged proxy of the object.
this->SetCOMIUnknown( myIntPtr );
// return COM Runtime Wrapper pointer.
return myIntPtr;
}
public override IntPtr SupportsInterface(ref Guid myGuid)
{
Console.WriteLine("SupportsInterface method called");
// Object reference is requested for communication with unmanaged objects
// in the current process through COM.
IntPtr myIntPtr = this.GetCOMIUnknown(false);
// Stores an unmanaged proxy of the object.
this.SetCOMIUnknown(myIntPtr);
// return COM Runtime Wrapper pointer.
return myIntPtr;
}
<SecurityPermission(SecurityAction.LinkDemand, Flags := SecurityPermissionFlag.Infrastructure)> _
Public Overrides Function SupportsInterface(ByRef myGuid As Guid) As IntPtr
Console.WriteLine("SupportsInterface method called")
' Object reference is requested for communication with unmanaged objects
' in the current process through COM.
Dim myIntPtr As IntPtr = Me.GetCOMIUnknown(False)
' Stores an unmanaged proxy of the object.
Me.SetCOMIUnknown(myIntPtr)
' return COM Runtime Wrapper pointer.
Return myIntPtr
End Function 'SupportsInterface
備註
當 Unmanaged Proxy 嘗試透過 COM 與 Common Language Runtime 通訊時，運行時間會解析 Unmanaged Proxy 所代表的遠端物件。 如果遠端物件是受管理，也位於通用語言環境中，則不會透過分散式 COM 與它通訊，而是將對象傳送至目前的進程。
如果遠端物件不是衍生自 MarshalByRefObject，則會串行化並複製到目前的位置。 如果衍生自 MarshalByRefObject，則會傳回透明 Proxy，而遠端基礎結構會快取非受控 Proxy， (IUnknown 透明 Proxy 中的介面) 以供日後使用。
