Suspends character transmission for a specified communications device and places the transmission line in a break state until ClearCommBreak is called.

BOOLEAN SetCommBreak(
  COMMHANDLE hComm   // handle to communications device
);

Parameters

hComm

[in] Handle to the communications device. OpenComm returns this handle.

Return Values

Non-zero

Success.

0 (zero)

Failure. To determine the status, call GetLastRtError.

Status

E_DISCONNECTED

COMM channel is closed.

E_PARAM

Invalid parameter.

Requirements