ev-mapping
EvMapping * ev_mapping_list_find (EvMappingList *mapping_list, gconstpointer data);
EvMappingList *mapping_list
gconstpointer data
EvMapping * ev_mapping_list_find_custom (EvMappingList *mapping_list, gconstpointer data, GCompareFunc func);
GCompareFunc func
gpointer ev_mapping_list_get_data (EvMappingList *mapping_list, gdouble x, gdouble y);
gdouble x
gdouble y
struct EvMapping { EvRectangle area; gpointer data; };