A wxConnection object represents the connection between a client and a server. It can be created by making a connection using a wxClient object, or by the acceptance of a connection by a wxServer object. The bulk of a DDE (Dynamic Data Exchange) conversation (available in both Windows and UNIX) is controlled by calling members in a wxConnection object or by overriding its members.
An application should normally derive a new connection class from wxConnection, in order to override the communication event handlers to do something interesting.
See wxClient, wxServer, and the chapter on interprocess communication in the user manual.