Manual Manipulation of Serial Communication Handshake Lines.

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This ActiveX control can be used to manually manipulate the hardware handshaking lines of a serial communications port. To do this, follow the following steps.

  1. Set the state of the control line before the port is opened.
  2. Open the port.
  3. Then assert the control line to the state you wish.
RTS Example:
IO1.SerialRTSControl(1) 'or 0 see SerialRTSControl documentation at main web page "Functions"
IO1.Open("COM2:", "baud=9600 parity=N data=8 stop=1")
IO1.SerialRTSControl(5) 'or 6 to change RTS state as desired.
See Functions for other handshaking lines.

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