What is CID (Connection Identifier)?

XCF develops a special 12-byte Connection Identifier to represent the connection, at the point when an association with a notepad is effectively made. The connection identifier can be obtained from the appropriate answer area returned by the IXCNOTE request that made the association. At the point when a note is made, the connection that issued the request becomes related to the note. The connection identifier is utilized to distinguish the associated connection.