Closes an open Communication driver handle.

Use this function to close handles returned by calls to OpenComm.

BOOLEAN CloseComm(
  COMMHANDLE hObject   // handle to object
);

Parameters

hObject

[in] Handle to an open communication driver.

Return Values

Non-zero

Success.

0 (zero)

Failure. To determine the status, call GetLastRtError.

Status

E_DISCONNECTED

COMM channel is closed

Requirements