Elo TouchSystems 1525L manual 128

MagTek Device Drivers for Windows

'will hold the numeric port number

Dim PortNumber As Integer

'prevent the Start button from being pressed again btnStart.Enabled = False

txtInfo.Text = "Please wait. Opening the port as File IO" txtInfo.Refresh

'declare space for an input buffer buf$ = String(2000, Chr$(0))

'If the virtual serial port number is unknown, it can be

'obtained by opening the driver in "File" mode with

'the "Friendly Name" and asking for the virtual COM port number.

'The sequence is:

'1) Open the driver as a binary file

'2) Request the "port_name" property

'3) Close the driver

'4) Open the serial port using the number obtained above

'5) Send/receive commands/data

'6) Close the serial port when done

'

'As of release 1.08.01 of the MTD drivers,

'the default Friendly Names are:

'-------------------------------------------------------------------

'"Mag-Wedge"

'"MT-85"

'"MT-95"

'"Port-powered swipe reader"

'"Port-powered insert reader"

'"MiniWedge"

'"MICR+"

'"Mini MICR RS-232"

'"Mini MICR Wedge"

'"IntelliPIN RS-232"

'"IntelliPIN Wedge"

'"IntelliPIN MICR Aux"

'"Generic Serial (RS-232)"

'"Generic Wedge (Keyboard)"

'

'Prepend "\\.\" to the "friendly" name which

'tells Windows that this is a device name and not a file name

NewName$ = "\\.\" + "MiniWedge"

'Trap the "file not found" error if the

'device is not present or ready

On Error Resume Next

'Try to open the device, this can take anywhere from one

'second to one minute

Open NewName For Binary Access Read Write As #1

'If the driver was unable to open the device, then

'inform the user

128