| _GaimBlistNode | A Buddy list node |
| _GaimBlistUiOps | Buddy list UI operations |
| _GaimBuddy | A buddy |
| _GaimBuddyList | The Buddy List |
| _GaimChat | A chat |
| _GaimContact | A contact |
| _GaimConvChat | Data specific to Chats |
| _GaimConvChatBuddy | Data for "Chat Buddies" |
| _GaimConversation | A core representation of a conversation between two or more people |
| _GaimConversationUiOps | Conversation operations and events |
| _GaimConvIm | Data specific to Instant Messages |
| _GaimConvWindow | A core representation of a graphical window containing one or more conversations |
| _GaimConvWindowUiOps | Conversation window operations |
| _GaimGroup | A group |
| _GaimGtkChatPane | GTK+ Chat panes |
| _GaimGtkConversation | A GTK+ conversation pane |
| _GaimGtkImPane | A GTK+ Instant Message pane |
| _GaimGtkLogViewer | A GTK+ Log Viewer |
| _GaimGtkPluginUiInfo | A GTK+ UI structure for plugins |
| _GaimGtkWindow | A GTK+ representation of a graphical window containing one or more conversations |
| _GaimLog | A log |
| _GaimLogLogger | A log logger |
| _GaimPlugin | A plugin handle |
| _GaimPluginAction | The structure used in the actions member of GaimPluginInfo |
| _GaimPluginInfo | Detailed information about a plugin |
| _GaimPluginLoaderInfo | Extra information for loader plugins |
| _GaimPluginProtocolInfo | A protocol plugin information structure |
| _GaimPounce | A buddy pounce structure |
| _GaimRoomlist | Represents a list of rooms for a given connection on a given protocol |
| _GaimRoomlistField | A field a room might have |
| _GaimRoomlistRoom | Represents a room |
| _GaimRoomlistUiOps | The room list ops to be filled out by the UI |
| _GaimStringref | The internal representation of a stringref |
| _GaimXfer | A core representation of a file transfer |
| GaimAccountOption | An option for an account |
| GaimAccountUserSplit | A username split |
| GaimBuddyIconSpec | A description of a Buddy Icon specification |
| GaimDebugUiOps | Debug UI operations |
| GaimGtkBuddyList | Like, everything you need to know about the gtk buddy list |
| GaimNotifyUiOps | Notification UI operations |
| GaimPrivacyUiOps | Privacy core/UI operations |
| GaimProxyInfo | Information on proxy settings |
| GaimRequestField | A request field |
| GaimRequestFieldGroup | A group of fields with a title |
| GaimRequestFields | Multiple fields request data |
| GaimRequestUiOps | Request UI operations |
| GaimSslOps | SSL implementation operations structure |
| GaimValue | A wrapper for a type, subtype, and specific type of value |
| GaimXferUiOps | File transfer UI operations |
1.4.4