Here are the data structures with brief descriptions:

C_x_list_t
Cxmms_error_St
Cxmms_ipc_transport_St
Cxmms_object_cmd_arg_t
Cxmms_object_St
Cxmms_output_methods_St	Output functions that lets XMMS2 talk to the soundcard
Cxmms_plugin_desc_St
Cxmms_plugin_St
Cxmms_url_St
Cxmms_vis_client_t	The structures for a vis client
Cxmms_visualization_St	The structures for the vis module
Cxmms_xform_methods_St	Methods provided by an xform plugin
Cxmmsc_vis_properties_t	Properties of the delivered vis data
Cxmmsc_vis_udp_data_t	UDP package descriptor to deliver a vis chunk
Cxmmsc_vis_udp_t	Data describing a udp transport
Cxmmsc_vis_udp_timing_t	UDP package descriptor to synchronize time
Cxmmsc_vis_unixshm_t	Data describing a unixshm transport
Cxmmsc_vischunk_t	Package format for vis data, encapsulated by unixshm or udp transport