Chameleon generates a custom message class for each message defined in the message definition file. This message class will have methods for accessing the tables and table group objects contained in the message.

In terms of the class hierarchy each message inherits from the TCHMcustomMessage class which inherits from the TCHMcustomTable class. The naming convention for the message classes is T<Prefix>msg<Message Name>. i.e. if the prefix chosen was HL7 and a message was called PatientAdmit, the delphi class would be named THL7msgPatientAdmit.