| NMXP_CHAN_KEY | The key/name info for one channel |
| NMXP_CHAN_KEY_NET | The key/name info for one channel |
| NMXP_CHAN_LIST | Channel list |
| NMXP_CHAN_LIST_NET | Channel list |
| NMXP_CHAN_PRECISITEM | Precis Channel item |
| NMXP_CHAN_PRECISLIST | Precis Channel list |
| NMXP_CHANNELINFOREQUEST | Channel info request body |
| NMXP_CHANNELINFORESPONSE | Channel info request body |
| NMXP_CONNECT_REQUEST | Body of ConnectRequest message |
| NMXP_DATA_PROCESS | Parameter structure for functions that process data |
| NMXP_DATA_REQUEST | Body of DataRequest message |
| NMXP_DATA_SEED | Parameter structure for functions that handle mini-seed records |
| NMXP_MESSAGE_HEADER | Header for all messages |
| NMXP_META_CHAN_LIST | Channel list |
| NMXP_PRECISLISTREQUEST | Precis list request body |
| NMXP_RAW_STREAM_DATA | |
| NMXP_TM_T | Struct tm plus ten thousandth second field |
1.5.3