ISerial::DataCarrierDetectState

Description

Shows the current state of the Data Carrier Detect (DCD) input signal. The DCD signal is often used by modems to indicate the detection of a carrier (remote modem) on the telephone line. The DCD signal is also known as Receive Line Signal Detect (RLSD).

VB Prototype

Dim value As LineState
value = object.DataCarrierDetectState

C++ Prototype

HRESULT get_DataCarrierDetectState(
  LineState* DataCarrierDetectState
);

Return Value

Refer to the table of return codes.

See Also

ComponentVersion, SpecVersion, HardwareInterfaceName, HardwareInterfaceNumber, HardwareInterfaceType, LockState, OptionString, ProgID, ResourceName, SessionType, SoftwareManufacturerID, SoftwareManufacturerName, Timeout, LastStatus, BytesAvailable, BaudRate, DataBits, ClearToSendState, DataCarrierDetectState, DataSetReadyState, DataTerminalReadyState, EndIn, EndOut, FlowControl, Parity, RingIndicatorState, RequestToSendState, StopBits, ReplacementCharacter, XONCharacter, XOFFCharacter, GetAttribute, SetAttribute, LockRsrc, UnlockRsrc, Init, Close, SetBufferSize, Flush, ISerial Overview