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WORD cflush(cid, q)
int cid;
int q;
 
The cflush function flushes all characters from the transmit or receive
queue of the specified communications device.
 
Parameter  Description
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cid        Identifies the communications device.
 
q          Specifies which queue to flush. If the q parameter is 1, the
           function flushes the receive queue; if q is zero, it flushes the
           transmit queue.
 
Return Value
 
The return value is the most recent error value.
 
Comments
 
The export ordinal for this function is 10.
 
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