RealProxy.SupportsInterface(Guid) Metoda

Definice

Obor názvů:

System.Runtime.Remoting.Proxies

Sestavení:

mscorlib.dll

Vyžádá si rozhraní COM se zadaným ID.

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

Parametry

iid

Guid

Odkaz na požadované rozhraní.

Návraty

IntPtr

nativeint

Ukazatel na požadované rozhraní.

Příklady

[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

Poznámky

Metoda SupportsInterface umožňuje aktuální instanci proxy implementovat další rozhraní COM jménem objektu serveru, který aktuální instance představuje. Aktuální metoda vygeneruje požadované rozhraní a vrátí na něj ukazatel. Typy rozhraní COM, které lze generovat touto metodou, závisí na typu proxy, který zase může záviset na typu objektu serveru, který aktuální instance proxy představuje.

Další informace naleznete v tématu ProxyAttribute.