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How to rotate image using TWain in Delphi

Forums › TWAIN Classic › How to rotate image using TWain in Delphi

  • This topic has 1 reply, 2 voices, and was last updated 4 years, 6 months ago by MarkM.
Viewing 2 posts - 1 through 2 (of 2 total)
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  • June 1, 2016 at 10:46 am #23063 Reply
    vishal.tiwari
    Participant
    • Topics - 2
    • Replies - 0
    • Total Posts - 2

    Hi,

    I tried out to rotate the image using TWain, but I found that there no option in TWain to rotate image.

    Any idea?

    With Best Regards.

    Vishal

    June 29, 2016 at 3:39 pm #26399 Reply
    MarkM
    Participant
    • Topics - 1
    • Replies - 135
    • Total Posts - 136

    There are two kinds of rotation in TWAIN: ICAP_ORIENTATION, which defines the which side of a sheet of paper is the leading edge being scanned. And ICAP_ROTATION (and ICAP_AUTOMATICROATE) which causes the scanner to rotate the finished image.

    In both cases the scanner vendor has to choose to support these capabilities, so an application cannot assume they’ll always be present for use.

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Reply To: How to rotate image using TWain in Delphi
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