Handshaking (Flow Control)

Introduction
Install SComm32
Why Not MsComm?

Properties
   .Break
   .CDHolding
   .CommEvent
   .CommName
   .CommPort
   .CTSHolding
   .DSRHolding
   .DTREnable
   .EOFChar
   .EOFEnable
   .Handshaking
   .InBufferCount
   .InBufferSize
   .Input
   .InputLen
   .InputMode
   .NullDiscard
   .OutBufferCount
   .OutBufferSize
   .OutPut
   .OverlappedIO
   .ParityReplace
   .PortOpen
   .RThreshold
   .RTSEnable
   .Settings
   .STHreshold

OnComm Event
Hardware/Cables etc

Handshaking

Sets or Retrieves the Handshaking/flow control method used by the com port

Syntax	object.Handshaking = value

object	Name of the communications control.
value	A numerical expression indicating whether flow control is enabled and what method to use.

	object.Handshaking = 0	'// Set the value (0 = no flow control)

	If object.Handshaking = 0 then MsgBox("Handshaking is disabled ") Else MsgBox("Flow control is enabled") End If	'// Retrieves the current setting.

	This property can be set to one of the following values
Constants	0 = comNone 1 = comXOnXoff 2 = comRTS 3 = comRTSXOnXOff	'// Flow control is disabled (Default) '// Use XonXoff '// Use RTS/CTS '// Use both

32bit development in VB6 using the Comm32 Communications OCX ?

Or are you looking for a proper .Net Component ?

Carry on using most of the common and well documented MSComm32 syntax but with a proper .net component allowing you to build x86, x64 and AnyCPU projects using Visual Studio 2005, 2008 and 2010.