win32file.PurgeComm

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.

Parameters

handle : PyHANDLE

The handle to the communications device.

action : int

The action to perform. This parameter can be one or more of the following values.

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).

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).