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Create Barcode For F8, F7 And Enter

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3 Kommentare

  • Avatar
    Domingo Rodriguez
    Moderator

    Barcodes cannot encode keyboard function (or action) keys. The reason is that function keys are unique to the hardware and are not an ASCII code.  For a PC keyboard, function keys transmitted as keyboard
    scan codes and have no equivalent ASCII control codes that can be coded as a barcode. However, there is a workaround. Many keyboard wedge scanners can be programmed to substitute a function key each time they scan a specified
    character. Since a keyboard wedge reader uses the same data transmission standards as a keyboard, they can send a scan code representing a function key.

    For example, if the application will never need a plus sign (+) in the barcode, the keyboard wedge replaces the plus sign with an F3 key. If "12345+" was scanned, it would produce the data stream "12345" followed by the
    F3 key. This same approach may be used even with barcode readers attached to a serial port if a "soft wedge" program is used. This "soft wedge" is a program that takes data from a serial port and treats it as if it had come in through the keyboard. Some of these programs also allow character substitution.

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  • Avatar
    Legacy Poster

    Thank you for your Info

     

    Now I have Powerscan Datalogic , our application need F8 and what should I do ?

    Could you give me more detail guiden , how to do it ?

    my question is : do i need symbol barcode F8 ? if yes could you send me symbol barcode F8

     

     

     

     

    Thank you

     

    Regards

     

    Ariyanto

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  • Avatar
    Domingo Rodriguez
    Moderator

    Hello,

     

    You need to look at the programming / operator manual of your bar code scanner in order to find out how to replace a certain character (e.g. the "+" key as in my example) by an F8 function key.

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