DispatchWrapper Třída

Definice

public ref class DispatchWrapper sealed

[System.Obsolete("DispatchWrapper and support for marshalling to the VARIANT type may be unavailable in future releases.")]
public sealed class DispatchWrapper

[System.Runtime.Versioning.SupportedOSPlatform("windows")]
public sealed class DispatchWrapper

public sealed class DispatchWrapper

[System.Runtime.InteropServices.ComVisible(true)]
[System.Serializable]
public sealed class DispatchWrapper

[<System.Obsolete("DispatchWrapper and support for marshalling to the VARIANT type may be unavailable in future releases.")>]
type DispatchWrapper = class

[<System.Runtime.Versioning.SupportedOSPlatform("windows")>]
type DispatchWrapper = class

type DispatchWrapper = class

[<System.Runtime.InteropServices.ComVisible(true)>]
[<System.Serializable>]
type DispatchWrapper = class

Public NotInheritable Class DispatchWrapper

Dědičnost

Object

DispatchWrapper

Atributy

ObsoleteAttribute SupportedOSPlatformAttribute ComVisibleAttribute SerializableAttribute

Poznámky

Slouží k zalamování objektů, které by měl zařašovač zařadovat jako VT_DISPATCH. Tato obálka vynutí, aby objekty byly zařazovány jako VT_DISPATCH. Pokud objekt nepodporuje IDispatch , vyvolá se výjimka.

void MyMethod(Object^ o);

void DoWrap()
{
    Object^ o = gcnew MyObject();
    MyMethod(o);                        // passes o as VT_UNKNOWN
    MyMethod(gcnew DispatchWrapper(o)); // passes o as VT_DISPATCH

    //...
}

void MyMethod(Object o);

public void DoWrap()
{
    Object o = new MyObject();
    MyMethod(o);                      // passes o as VT_UNKNOWN
    MyMethod(new DispatchWrapper(o)); // passes o as VT_DISPATCH

    //...
}

Sub MyMethod(o As Object)
    ' handle object ...
End Sub

Public Sub DoWrap()
    Dim o As Object = new MyObject()
    MyMethod(o)                      ' passes o as VT_UNKNOWN
    MyMethod(new DispatchWrapper(o)) ' passes o as VT_DISPATCH

    '...
End Sub

Další informace o nástroji VT_DISPATCHnajdete v existující dokumentaci k nástroji VARENUM::VT_DISPATCH v knihovně MSDN.

Konstruktory

Vlastnosti

Metody

Platí pro