BitmapEffect.CreateBitmapEffectOuter Metodo

Riferimento

Definizione

Spazio dei nomi:: System.Windows.Media.Effects

Assembly:: PresentationCore.dll

Importante

Alcune informazioni sono relative alla release non definitiva del prodotto, che potrebbe subire modifiche significative prima della release definitiva. Microsoft non riconosce alcuna garanzia, espressa o implicita, in merito alle informazioni qui fornite.

Attenzione

BitmapEffects are deprecated and no longer function. Consider using Effects where appropriate instead.

Crea un handle per un oggetto IMILBitmapEffect usato per inizializzare un effetto personalizzato.

protected:
 static System::Runtime::InteropServices::SafeHandle ^ CreateBitmapEffectOuter();

[System.Security.SecurityCritical]
[System.Security.SecurityTreatAsSafe]
protected static System.Runtime.InteropServices.SafeHandle CreateBitmapEffectOuter ();

[System.Security.SecurityCritical]
[System.Security.SecurityTreatAsSafe]
[System.Obsolete("BitmapEffects are deprecated and no longer function.  Consider using Effects where appropriate instead.")]
protected static System.Runtime.InteropServices.SafeHandle CreateBitmapEffectOuter ();

[System.Obsolete("BitmapEffects are deprecated and no longer function.  Consider using Effects where appropriate instead.")]
protected static System.Runtime.InteropServices.SafeHandle CreateBitmapEffectOuter ();

[<System.Security.SecurityCritical>]
[<System.Security.SecurityTreatAsSafe>]
static member CreateBitmapEffectOuter : unit -> System.Runtime.InteropServices.SafeHandle

[<System.Security.SecurityCritical>]
[<System.Security.SecurityTreatAsSafe>]
[<System.Obsolete("BitmapEffects are deprecated and no longer function.  Consider using Effects where appropriate instead.")>]
static member CreateBitmapEffectOuter : unit -> System.Runtime.InteropServices.SafeHandle

[<System.Obsolete("BitmapEffects are deprecated and no longer function.  Consider using Effects where appropriate instead.")>]
static member CreateBitmapEffectOuter : unit -> System.Runtime.InteropServices.SafeHandle

Protected Shared Function CreateBitmapEffectOuter () As SafeHandle

Restituisce

SafeHandle

Handle a un oggetto IMILBitmapEffect.

Attributi: SecurityCriticalAttribute SecurityTreatAsSafeAttribute ObsoleteAttribute

Esempio

Nell'esempio seguente viene illustrata un'implementazione di CreateUnmanagedEffect che usa il CreateBitmapEffectOuter metodo per recuperare un oggetto effetto wrapper.

unsafe protected override SafeHandle CreateUnmanagedEffect()
{
    const uint CLSCTX_INPROC_SERVER = 1;
    Guid IID_IUnknown = new Guid("00000000-0000-0000-C000-000000000046");
    Guid guidEffectCLSID = new Guid("84CF07CC-34C4-460f-B435-3184F5F2FF2A");
    SafeHandle wrapper = BitmapEffect.CreateBitmapEffectOuter();

    COMSafeHandle unmanagedEffect;
    uint hresult = Ole32Methods.CoCreateInstance(
                        ref guidEffectCLSID,
                        wrapper.DangerousGetHandle(),
                        CLSCTX_INPROC_SERVER,
                        ref IID_IUnknown,
                        out unmanagedEffect);
    InitializeBitmapEffect(wrapper, unmanagedEffect);
    if (0 == hresult) return wrapper;
    throw new Exception("Cannot instantiate effect. HRESULT = " + hresult.ToString());
}

<SecurityPermissionAttribute(SecurityAction.Demand, Flags := SecurityPermissionFlag.UnmanagedCode)>
Protected Overrides Function CreateUnmanagedEffect() As SafeHandle
    Const CLSCTX_INPROC_SERVER As UInteger = 1
    Dim IID_IUnknown As New Guid("00000000-0000-0000-C000-000000000046")
    Dim guidEffectCLSID As New Guid("84CF07CC-34C4-460f-B435-3184F5F2FF2A")
    Dim wrapper As SafeHandle = BitmapEffect.CreateBitmapEffectOuter()

    Dim unmanagedEffect As COMSafeHandle
    Dim hresult As UInteger = Ole32Methods.CoCreateInstance(guidEffectCLSID, wrapper.DangerousGetHandle(), CLSCTX_INPROC_SERVER, IID_IUnknown, unmanagedEffect)
    InitializeBitmapEffect(wrapper, unmanagedEffect)
    If 0 = hresult Then
        Return wrapper
    End If
    Throw New Exception("Cannot instantiate effect. HRESULT = " & hresult.ToString())
End Function

Commenti

L'interazione del framework con effetti personalizzati viene gestita tramite un oggetto IMILBitmapEffect . L'effetto esterno viene inizializzato con l'effetto personalizzato tramite il InitializeBitmapEffect metodo .

Si applica a

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