Omega Vehicle Security TCIC Manuel d'utilisateur télécharger pdf (Page 33)

TCIC User’s Manual

4.5 Troubleshooting

Q. I can communicate with the TCIC when it is located in COM1

through COM9, but when it is in COM10 or more, my application

does not work. The TCIC-Monitor, however, works fine.

A. Opening COM port 10 or above is done differently:

Prefix "\\.\" to its name.

For example:

In C:

CreateFile( "\\\\.\\COM10",...)

In VB.Net:

' Creates a COM Port stream handle

Dim COM_Name As String = "COM" & miPort.ToString

If miPort > 9 Then

COM_Name = "\\.\COM" & miPort.ToString

End If

mhRS = CreateFile(COM_Name, _

GENERIC_READ Or GENERIC_WRITE, 0, 0, _

OPEN_EXISTING, iMode, 0)

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Omega Vehicle Security TCIC Manuel d'utilisateur Page 33