PurgeComm(handle, action)
Discards all characters from the output or input buffer of a specified communications resource. It can also terminate pending read or write operations on the resource.
Value | Meaning |
PURGE_TXABORT | Terminates all outstanding overlapped write operations and returns immediately, even if the write operations have not been completed. |
PURGE_RXABORT | Terminates all outstanding overlapped read operations and returns immediately, even if the read operations have not been completed. |
PURGE_TXCLEAR | Clears the output buffer (if the device driver has one). |
PURGE_RXCLEAR | Clears the input buffer (if the device driver has one). |