OnRxChar Event in Serial Port ActiveX Control

The OnRxChar event occurs when there is data in the received queue to be handled.  

  LONG Count // CTS signal state


  [out] Contains the number of the bytes currently available in the input buffer of the serial port.


  Note, that the Count variable represents not the number of received bytes but the number of bytes currently available for read. This is the same value that could be received via InCount property.