IFWXExternalIOCompletion Interface

The IFWXExternalIOCompletion interface includes a method for receiving a notification from the Microsoft Firewall service upon completion of an asynchronous Windows input/output (I/O) operation involving reading or writing to a file on a disk for which the filter maintains a handle.

Syntax

interface IFWXExternalIOCompletion : IUnknown

When To Implement

An application filter that needs to receive notifications from the Firewall service upon completion of asynchronous Windows I/O operations must implement this notification interface.

Methods

The IFWXExternalIOCompletion interface inherits the methods of the IUnknown interface.

In addition, IFWXExternalIOCompletion defines the following method.

Method	Description
CompleteAsyncIO	Receives a notification from the Firewall service when an asynchronous Windows I/O operation involving reading or writing to a file on a disk completes.

Remarks

This interface is similar in function to the IFWXIOCompletion interface, but is used for reading or writing to files on a disk asynchronously.

Requirements

Server	Requires Windows Server 2008.
Version	Requires Forefront Threat Management Gateway (TMG).
Header	Declared in Wspfwext.idl.