DDPRdCancel

Dequeue a DDPRead call

#include <AppleTalk.h> AppleTalk Manager

ATDDPRecHandle abRecord; handle to an ATDDPRec

returns Error Code; 0=no error

DDPRdCancel is part of the AppleTalk alternate interface. See DDPRead for

information on the correct method for reading ALAP frames using the

preferred interface.

DDPRdCancel de queues a previously made DDPRead, provided that a packet

satisfying the DDPRead has not already arrived.

abRecord is a handle to an ATDDPRec structure.

Returns: an operating system Error Code. It will be one of:

noErr (0) No error

readQErr (-3105) Read queue error

recNotFnd (-3108) Record not found

Notes: Given the handle to an ATDDPRec or a previously made DDPRead call,

DDPRdCancel de queues the DDPRead call provided that a packet

satisfying the DDPRead has not already arrived. DDPRdCancel returns

noErr if the DDPRead call is successfully removed from the queue. If

DDPRdCancel returns recNotFnd, check the abResult field of abRecord to

verify that the DDPRead has been completed and determine its outcome.

Referenced by (3):