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I have Question about TW_EXTIMAGEINFO

Forums › TWAIN Classic › I have Question about TW_EXTIMAGEINFO

  • This topic has 3 replies, 3 voices, and was last updated 10 years, 9 months ago by kpr.
Viewing 4 posts - 1 through 4 (of 4 total)
  • Author
    Posts
  • April 28, 2006 at 1:53 pm #21926 Reply
    Anonymous
    Participant
    • Topics - 60
    • Replies - 107
    • Total Posts - 167

    TW_INFO[1]
    InfoID == TWEI_BARCODETYPE
    ItemType == TW_UINT32
    NumItems == 2
    CondCode == TWCC_SUCCESS
    Item == TW_HANDLE-0

    TW_INFO[2]
    InfoID == TWEI_BARCODETEXTLENGTH
    ItemType == TW_UINT32
    NumItems == 2
    CondCode == TWCC_SUCCESS
    Item == TW_HANDLE-1

    TW_INFO[3]
    InfoID == TWEI_BARCODETEXT
    ItemType == TW_HANDLE
    NumItems == 2
    CondCode == TWCC_SUCCESS
    Item == TW_HANDLE-2

    How Get Item Value

    ((TW_UINT32*)TW_HANDLE-0)[0] TWBT_3OF9
    ((TW_UINT32*)TW_HANDLE-0)[1] TWBT_2OF5INTERLEAVED
    ((TW_UINT32*)TW_HANDLE-1)[0] 16
    ((TW_UINT32*)TW_HANDLE-1)[1] 32
    ((TW_UINT8*)TW_HANDLE-2)[0] Barcode Text 0
    ((TW_UINT8*)TW_HANDLE-2)[ ((TW_UINT32*)TW_HANDLE-
    Barcode Text 1

    red area what mean?

    June 18, 2010 at 1:15 am #23333 Reply
    gengmingxia
    Participant
    • Topics - 0
    • Replies - 2
    • Total Posts - 2

    I have the same question with you , and I don’t know how to use the TW_HANDLE. As the question has posed for a long time. Do you have solved this question.
    my email is gengmingxia@newbeiyang.com

    June 18, 2010 at 1:20 am #23334 Reply
    gengmingxia
    Participant
    • Topics - 0
    • Replies - 2
    • Total Posts - 2

    I have the same question with you , and I don’t know how to use the TW_HANDLE. As the question has posed for a long time. Do you have solved this question.
    my email is gengmingxia@newbeiyang.com

    June 29, 2010 at 6:50 am #23335 Reply
    kpr
    Participant
    • Topics - 7
    • Replies - 6
    • Total Posts - 13

    have a look on the source code of the twain sample application from twain.org.

    TwainApp.cpp

    void TwainApp::updateEXIMAGEINFO()

    Probably this will help you to answer your question.

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    Posts
Viewing 4 posts - 1 through 4 (of 4 total)
Reply To: I have Question about TW_EXTIMAGEINFO
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