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.