RealProxy.SupportsInterface(Guid) 方法

定义

命名空间:

System.Runtime.Remoting.Proxies

程序集:

mscorlib.dll

请求具有指定 ID 的 COM 接口。

public:
 virtual IntPtr SupportsInterface(Guid % iid);

public virtual IntPtr SupportsInterface (ref Guid iid);

abstract member SupportsInterface : Guid -> nativeint
override this.SupportsInterface : Guid -> nativeint

Public Overridable Function SupportsInterface (ByRef iid As Guid) As IntPtr

参数

iid

Guid

对所请求的接口的引用。

返回

IntPtr

nativeint

指向所请求的接口的指针。

示例

[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

注解

方法 SupportsInterface 允许当前代理实例代表当前实例表示的服务器对象实现其他 COM 接口。 当前方法生成请求的接口并返回指向它的指针。 此方法可生成的 COM 接口类型取决于代理类型，代理类型反过来可能取决于当前代理实例表示的服务器对象的类型。

有关详细信息，请参阅 ProxyAttribute。