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About DS(data source) impatient!

Forums › TWAIN Classic › About DS(data source) impatient!

  • This topic has 1 reply, 2 voices, and was last updated 7 years, 11 months ago by spike.
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  • January 27, 2013 at 2:00 pm #22821 Reply
    pamxy520
    Participant
    • Topics - 7
    • Replies - 11
    • Total Posts - 18

    Hello! I want to build up my ds,but I don’t know how the .ds file was created.Can you help me? 😯

    February 5, 2013 at 9:28 pm #25812 Reply
    spike
    Participant
    • Topics - 10
    • Replies - 139
    • Total Posts - 149

    Hi pamxy – when you say “build up”… do you mean create one? So you want to write a TWAIN driver?

    A .ds file is a just .dll that has been renamed to .ds.

    “DS” stands for Data Source, which is what TWAIN drivers are officially called, for reasons which I have forgotten.

    A Data Source DLL is created by following the specifications given in the TWAIN Specification, which you can download here:
    https://www.twain.org/scannerdriverdevelopers/specification-and-tools.html

    On that same page is a link to a “Sample Data Source and Application” – this includes source code for a TWAIN driver.
    There’s also a C++ framework for a TWAIN driver here:
    http://www.eztwain.com/gends.htm
    note that this is officially unsupported code, but it has been used to write several commercial TWAIN drivers:

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