BitmapEffect.CreateUnmanagedEffect Método
Definición
Importante
Parte de la información hace referencia a la versión preliminar del producto, que puede haberse modificado sustancialmente antes de lanzar la versión definitiva. Microsoft no otorga ninguna garantía, explícita o implícita, con respecto a la información proporcionada aquí.
Precaución
BitmapEffects are deprecated and no longer function. Consider using Effects where appropriate instead.
Cuando se invalida en una clase derivada, crea un clon del efecto no administrado.
protected:
abstract System::Runtime::InteropServices::SafeHandle ^ CreateUnmanagedEffect();protected abstract System.Runtime.InteropServices.SafeHandle CreateUnmanagedEffect ();[System.Obsolete("BitmapEffects are deprecated and no longer function. Consider using Effects where appropriate instead.")]
[System.Security.SecurityCritical]
protected abstract System.Runtime.InteropServices.SafeHandle CreateUnmanagedEffect ();[System.Obsolete("BitmapEffects are deprecated and no longer function. Consider using Effects where appropriate instead.")]
protected abstract System.Runtime.InteropServices.SafeHandle CreateUnmanagedEffect ();abstract member CreateUnmanagedEffect : unit -> System.Runtime.InteropServices.SafeHandle[<System.Obsolete("BitmapEffects are deprecated and no longer function. Consider using Effects where appropriate instead.")>]
[<System.Security.SecurityCritical>]
abstract member CreateUnmanagedEffect : unit -> System.Runtime.InteropServices.SafeHandle[<System.Obsolete("BitmapEffects are deprecated and no longer function. Consider using Effects where appropriate instead.")>]
abstract member CreateUnmanagedEffect : unit -> System.Runtime.InteropServices.SafeHandleProtected MustOverride Function CreateUnmanagedEffect () As SafeHandleDevoluciones
Identificador al clon del efecto no administrado.
- Atributos
Ejemplos
En el ejemplo siguiente se muestra una invalidación del CreateUnmanagedEffect método .
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