EXTENSION_CONTROL_BLOCK.IOCallback

None = IOCallback(ecb, arg , cbIO , dwError )

A placeholder for a user-supplied callback function.

Parameters

ecb : EXTENSION_CONTROL_BLOCK

The extension control block that is associated with the current, active request.

arg : object

The user-supplied argument supplied to the EXTENSION_CONTROL_BLOCK::IOCompletion function.

cbIO : int

An integer that contains the number of bytes of I/O in the last call.

dwError : int

The error code returned.

Comments

This is not a function you can call, it describes the signature of the callback function supplied to the EXTENSION_CONTROL_BLOCK::IOCompletion function.

Return Value

The result of this function is ignored.