FTSPCPurgeFlags Enumeration
| ftspcPurgeNone | 0 | There are no read/write operations. |
|---|---|---|
| ftspcPurgeAbort | 1 | Terminates outstanding overlapped write (or read) operations and returns immediately, even if the write (read) operations have not been completed. |
| ftspcPurgeClear | 2 | Clears the output (input) buffer (if the device driver has one). |
| ftspcPurgeAbortClear | 3 | Combination of two previous elements (PurgeAbort, PurgeClear). |