Network Programming for Microsoft Windows (Microsoft Professional Series)
NCBDGRECV
This command receives a datagram directed to the local name associated with the ncb_num value. If ncb_num is 0xFF, this command receives datagrams directed to any local name. The local name can be either a group name or a unique name. If no receive datagram command is pending when a datagram is sent, the data is lost. If the supplied buffer is too small, an “incomplete error” message, NRC_INCOMP (0x06), occurs and the data is truncated to fill the buffer. Table 22-9 describes the characteristics of the NCBDGRECV command.
| Field | In/Out | Required |
| ncb_command | In | X |
| ncb_retcode | Out | |
| ncb_lsn | ||
| ncb_num | In | X |
| ncb_buffer | In | X |
| ncb_length | In/Out | X |
| ncb_callname | Out | |
| ncb_name | ||
| ncb_rto | ||
| ncb_sto | ||
| ncb_post | In | |
| ncb_lana_num | In | X |
| ncb_cmd_cplt | Out | |
| ncb_event | In |