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CustomQueryInterfaceResult Enum

  • Reference

Definition

Namespace:
System.Runtime.InteropServices
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.

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

Fields

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.
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.

Applies to