Twain error with canoscan 8400F - solution

Discussion in 'Scanners' started by Othmar Marti, Mar 3, 2006.

  1. Othmar Marti

    Othmar Marti Guest

    The twain interface (ScanGearCS 10.220) out of the box of my new
    canoscan 8400f did not work on my windows xp machine. I got error
    messages such as:
    - The twain interface is not working: reinstallation might help
    - rmslantc.dll not found.

    The solution is:
    Canon has hardcoded the lenght of the variable which holds the windows
    path in its twain interface. My path was too long: The twain interface
    ScanGear CS fails. I shortened the path to 702 characters: now the
    interface works. I suspect that the limit is at 768 characters (I have
    not tested that).

    So if your Canon Twain driver does not work on Windows XP (might be the
    same for win 2k): shorten the path.


    Othmar Marti, Mar 3, 2006
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  2. Egad!!!!! You have a directory path that's seven HUNDRED and two characters
    long? How many subdirectories? What are you calling these that takes so many
    characters? You'll find that lots of software would have problems with such
    enormously long paths.

    Stewart DIBBS
    Want to build your own scanner and digicam apps?
    PiXCL 6.0 is affordable and available now ! Gatineau, Quebec, CANADA
    Stewart DIBBS, Mar 10, 2006
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