Query Interface Interface
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ICustomQueryInterface may be unavailable in future releases.
Enables developers to provide a custom, managed implementation of the IUnknown::QueryInterface(REFIID riid, void **ppvObject) method.
public interface class ICustomQueryInterface
[System.Obsolete("ICustomQueryInterface may be unavailable in future releases.")] public interface ICustomQueryInterface
public interface ICustomQueryInterface
[System.Runtime.InteropServices.ComVisible(false)] public interface ICustomQueryInterface
[<System.Obsolete("ICustomQueryInterface may be unavailable in future releases.")>] type ICustomQueryInterface = interface
type ICustomQueryInterface = interface
[<System.Runtime.InteropServices.ComVisible(false)>] type ICustomQueryInterface = interface
Public Interface ICustomQueryInterface
This class permits advanced users to provide a customized managed implementation of the
Managed and native applications can use the customized implementation to return a specific interface for a specified interface ID, except for IID_IUnknown. That is, when
QueryInterface is called, it will ignore custom implementations if its
riid parameter is set to IID_IUnknown. However, you may still return IUnknown as the
Developers can provide custom implementations for all interfaces (except for
IUnknown) if they define and implement a valid corresponding interface.
A valid user-defined interface has a v-table layout that matches the unmanaged COM interface exactly, and its InterfaceTypeAttribute is InterfaceIsIUnknown.
Returns an interface according to a specified interface ID.