Here are the classes, structs, unions and interfaces with brief descriptions:

CAPI_commands
CAPI_config
CAPI_curl
CAPI_db
CAPI_ial
CAPI_irc
CAPI_memory
CAPI_ss
CAPI_textfunc
CAPI_user
CAPI_yp
CBOTAPI
CCHANADMIN_INTERFACE
CCOMMAND
CCOMMAND_ACL
CFIND_RESULT
CFIND_RESULTS
CIBM_GETUSERINFO
CIBM_MEMINFO
CIBM_NICKCHANGE
CIBM_ON_BAN
CIBM_ON_KICK
CIBM_PROCTEXT
CIBM_RATING
CIBM_REMOTE
CIBM_REQONOFF
CIBM_SONGINFO
CIBM_USEREXTENDED
CIBM_USERFULL
CIBM_USERTEXT
CPLUGIN_PUBLIC
CREMOTE_HEADER
CREMOTE_UPLOAD_DATA
CREMOTE_UPLOAD_START
CREQUEST_INTERFACE
CSONG_RATING
CSOUND_SERVER
CSTATS
CSTREAM_INFO
CTTS_INTERFACE
CTTS_JOB
CUSER
CUSER_PRESENCE
CYP_CREATE_INFO
CYP_HANDLE