OnDSR Event in Serial Port ActiveX Control

The OnDSR event is triggered when a change is detected in the DSR input signal of the port.  

OnDSR(
 BOOL On// DSR signal state
);

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

ValueMeaning
TRUEDSR signal sent
FALSEDSR signal cleared