The following table lists the file control opcode constants:
| Constant | Meaning |
| FCNTL_LOCKSTATE | |
| GET_LOCKPROXYFILE | |
| SET_LOCKPROXYFILE | |
| LAST_ERRNO | |
| FCNTL_SIZE_HINT | |
| FCNTL_CHUNK_SIZE | |
| FCNTL_FILE_POINTER | |
| FCNTL_SYNC_OMITTED | |
| FCNTL_WIN32_AV_RETRY | |
| FCNTL_PERSIST_WAL | |
| FCNTL_OVERWRITE | |
| FCNTL_VFSNAME | |
| FCNTL_POWERSAFE_OVERWRITE | |
| FCNTL_PRAGMA | |
| FCNTL_BUSYHANDLER | |
| FCNTL_TEMPFILENAME | |
| FCNTL_MMAP_SIZE | |
| FCNTL_TRACE | |
| FCNTL_HAS_MOVED | |
| FCNTL_SYNC | |
| FCNTL_COMMIT_PHASETWO |