OnDCD Event in Serial Port ActiveX Control

The OnDCD event is triggered when a change is detected in the DCD input signal of the port.  

  BOOL On // DCD signal state

  On     [out] Determines the state of DCD signal. This parameter can be any of the following values:    

Value Meaning
TRUE DCD signal sent
FALSE DCD signal cleared


See also

OnCTS event, OnDSR event, OnRing event