Here are the data structures with brief descriptions:

Animations
BigCell
Cache_Entry
CButtons
ChildProcess
ClientSocket
CmdMapping
ConsoleCommand
CS_Stats
Face_Information_struct
FaceCache
FaceSets_struct
FD_Cache
fixed_tab_init
Image_Cache
Info_Pane
InfoData
InfoLine
inventory_viewer
item_delete
item_struct
itemlist
Keys
LogEntry
Map
MapCell
MapCellLayer
MapPos
media_state
Meta_Info
Msg_Type_Names
NameMapping
news_entry
Notebook_Info
PickupMapping
picture_message_struct
PipeLog
PixmapInfo
Player_Struct
PlayerPosition
Pngx_Color_Values
script
SockList
Sound_Info
sound_settings
Spell_struct
Stat_struct
StatWindow
TextManager
Vitals