Every codec needs to define a generic codec function table. The header file provides a definition for this as an AP_EventCodec_Functions structure with the following functions:

where the library functions updateProperties, getLastError and getStatus are being defined as being the implementations of the Codec Development Specification's updateProperties,getLastError and getStatus function definitions respectively.

See the AP_EventCodec_Functions structure in the API Reference for C++ (Doxygen) for detailed information.