CCL Version 3.3.1

CIGI Class Library : Users' Guide



		Index


		Overview
		Features
		Class Diagram
		Other References
		Design Objectives
		Global Controls
		Beginning a Session
		Working with Messages
		Process Outgoing
		Initialize Incoming
		Process Incoming
		Event Method
		Signal Method
		Callback Method
		Iteration Method
		Operation
		Host Session
		IG Session
		User Defined Packets
		References
		Index of Changes
		Contributor List
		Current Release Files

		Processing Incoming Messages : Callback Method

Processing Incoming Messages

The Callback Method

The third method is referred to as "Callback" processing. When a packet is received the Incoming Message Object determines which CIGI Class Library object unpacks the data and then determines which "Callback" processing routine is called. The call back is a routine that has the form

void name(CigiBasePacket *Packet)

Each routine processes the packet for which it is written and registered.

Example: Registering a Callback Processor

IncomingMessage.RegisterCallBack(
    Packet_ID,
    (CigiCBProcessor)&Specific_packet_callback_processing_routine);

// (such as)
IncomingMessage.RegisterCallBack(
    CIGI_SOF_PACKET_ID_V3,
    (CigiCBProcessor)&CB_SOF);

******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ******** ********