Siemens M20 Terminal Technical Description page 182

Siemens Information and Communication Products
8.4.2.6 int FlushComm(idComDev, fnQueue)
int idComDev;
int fnQueue;
The FlushComm function flushes all characters from the transmission or receiving queue of the specified communications
device.
int FlushComm(idComDev, fnQueue)
Parameter Description
idComDev Specifies the communications device to be flushed. The OpenComm function returns this
value.
fnQueue Specifies the queue to be flushed. The transmission queue is flushed if this parameter is ze-
ro. The receiving queue is flushed if the parameter is 1.
Return value 0 if the function is successful.
< 0 if idComDev is not a valid device or if fnQueue is not a valid queue
> 0 if there is an error for the specified device. For a list of the possible error values, see the
GetCommError function.
Example None
Comments None
See also GetCommError, OpenComm
Version 8 dated 15.03.00
/* communications-device identifier
/* queue to flush
*/
*/
Application notes
A
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