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CustomQueryInterfaceResult Enum

  • Reference

Definition

Namespace:
System.Runtime.InteropServices
Assemblies:
mscorlib.dll, System.Runtime.InteropServices.dll
Assemblies:
netstandard.dll, System.Runtime.InteropServices.dll
Assembly:
System.Runtime.InteropServices.dll
Assembly:
mscorlib.dll
Assembly:
netstandard.dll

Caution

CustomQueryInterfaceResult and support for ICustomQueryInterface may be unavailable in future releases.

Provides return values for the GetInterface(Guid, IntPtr) method.

C# 
[System.Obsolete("CustomQueryInterfaceResult and support for ICustomQueryInterface may be unavailable in future releases.")]
public enum CustomQueryInterfaceResult
C# 
public enum CustomQueryInterfaceResult
C# 
[System.Runtime.InteropServices.ComVisible(false)]
[System.Serializable]
public enum CustomQueryInterfaceResult
Inheritance
Object
ValueType
Enum
CustomQueryInterfaceResult
Attributes
ObsoleteAttribute ComVisibleAttribute SerializableAttribute

Fields

Name Value Description
Handled 0

The interface pointer that is returned from the GetInterface(Guid, IntPtr) method can be used as the result of IUnknown::QueryInterface.
NotHandled 1

The custom QueryInterface was not used. Instead, the default implementation of IUnknown::QueryInterface should be used.
Failed 2

The interface for a specific interface ID is not available. In this case, the returned interface is null. E_NOINTERFACE is returned to the caller of IUnknown::QueryInterface.

Applies to

Продукт Версии (остаряло)
.NET Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10 (Core 1.0, Core 1.1)
.NET Framework 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard 1.1, 2.0, 2.1 (1.2, 1.3, 1.4, 1.5, 1.6)
UWP (10.0)