Batch file or VisualBasic file to send to USB port

This is a discussion on Batch file or VisualBasic file to send to USB port within the Windows Programming forums, part of the Platform Specific Boards category; hi All I need to write either a simple batch file or VisualBasic exe to send to the USB port ...

  1. #1
    Registered User
    Join Date
    Mar 2004
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    1

    Unhappy Batch file or VisualBasic file to send to USB port

    hi All
    I need to write either a simple batch file or VisualBasic exe to send to the USB port to open a cash drawer

    The syntax is something like OpenDrawer 1 "Star TSP700 Raster Printer"

    I have written similar files in VisualBasic for Com ports which work eg:


    Private Sub Form_Load()
    ' OPEN COM1 FOR OUTPUT
    Open "com1" For Output As #1
    ' POP CASH DRAWER
    ' CMD:
    Print #1, Chr$(7)
    ' CLOSE THE COM1 PORT
    Form1.Cls
    Close #1
    End Sub

    but they do not work with USB

    Can anyone help me out please?
    TIA
    Rod

  2. #2
    Yes, my avatar is stolen anonytmouse's Avatar
    Join Date
    Dec 2002
    Posts
    2,544
    You typically need a driver to communicate through a usb port. Fortunately, there is a generic driver available. This is targeted at C/C++ but may be useable in VB through an intermediate dll. Some usb devices include a user mode interface. One such example is Ez-USB.

    There is also likely to be commercial software that provides usb access to vb programs.

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