Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Qt Development
  3. 3rd Party Software
  4. QT Error with Twain Data Source
Forum Updated to NodeBB v4.3 + New Features

QT Error with Twain Data Source

Scheduled Pinned Locked Moved Unsolved 3rd Party Software
37 Posts 2 Posters 14.0k Views 2 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • mrjjM Offline
    mrjjM Offline
    mrjj
    Lifetime Qt Champion
    wrote on last edited by
    #20

    Hi
    I wondered if
    https://github.com/twain/twain-samples
    is something else than the twain you try ?

    1 Reply Last reply
    0
    • B Offline
      B Offline
      bhim
      wrote on last edited by
      #21

      I tried the exact same exact same Twain.

      mrjjM 1 Reply Last reply
      0
      • B bhim

        I tried the exact same exact same Twain.

        mrjjM Offline
        mrjjM Offline
        mrjj
        Lifetime Qt Champion
        wrote on last edited by
        #22

        @bhim
        Ok but it didnt work or was not what you wanted?

        1 Reply Last reply
        0
        • B Offline
          B Offline
          bhim
          wrote on last edited by
          #23

          It did not work. However i am able to resolve most of the error for data type conversion. I am now stuck at below, i am not able to go to definition\declaration of this method to make any change. I know how to do it in Visual Studio but not in QT. Can you please help

          0_1513870545958_2d8762fa-efe9-42b6-9bcb-a13c435fa223-image.png

          1 Reply Last reply
          0
          • B Offline
            B Offline
            bhim
            wrote on last edited by bhim
            #24

            Hi,

            I have resolved all string related error. Now my project is showing this :-1: error: LNK1104: cannot open file 'freeimage.lib' . If i could find the Visual Studio equivalent or Project property in QT, that would be very helpful to very file the linker paths.

            mrjjM 1 Reply Last reply
            0
            • B bhim

              Hi,

              I have resolved all string related error. Now my project is showing this :-1: error: LNK1104: cannot open file 'freeimage.lib' . If i could find the Visual Studio equivalent or Project property in QT, that would be very helpful to very file the linker paths.

              mrjjM Offline
              mrjjM Offline
              mrjj
              Lifetime Qt Champion
              wrote on last edited by
              #25

              @bhim
              you mean to link the LIB file to the project ?
              http://doc.qt.io/qt-5/third-party-libraries.html
              http://doc.qt.io/qtcreator/creator-project-qmake-libraries.html

              Basically you need a
              LIBS += -L"3rdparty/CatWhisperer/lib" -lCatWhisperer
              (with correct names of course)

              1 Reply Last reply
              1
              • B Offline
                B Offline
                bhim
                wrote on last edited by
                #26

                Thanks , this resolve the lib issue. Now below 2 error

                14:31:45: Running steps for project src...
                14:31:45: Configuration unchanged, skipping qmake step.
                14:31:45: Starting: "C:\Qt\qtcreator-4.5.0\bin\jom.exe"
                c:\Qt\4.8.7\bin\qmake.exe -spec c:\Qt\4.8.7\mkspecs\win32-msvc2008 CONFIG+=release -o Makefile ..\src\src.pro
                C:\Qt\qtcreator-4.5.0\bin\jom.exe -f Makefile.Debug
                link /LIBPATH:"c:\Qt\4.8.7\lib" /NOLOGO /DYNAMICBASE /NXCOMPAT /DEBUG /DLL /MANIFEST /MANIFESTFILE:"debug\TWAINDS_FreeImage.intermediate.manifest" /OUT:debug\TWAINDS_FreeImage.dll @C:\Users\rathorb\AppData\Local\Temp\TWAINDS_FreeImage.dll.13524.62.jom
                TWAIN_UI.obj : error LNK2019: unresolved external symbol __imp__SHGetSpecialFolderPathA@16 referenced in function "public: __thiscall CTWAIN_UI::CTWAIN_UI(class CTWAINDS_FreeImage *)" (??0CTWAIN_UI@@QAE@PAVCTWAINDS_FreeImage@@@Z)
                debug\TWAINDS_FreeImage.dll : fatal error LNK1120: 1 unresolved externals
                jom: C:\ODIImages\Source\Twain\twain-samples-master\twain-samples-master\TWAIN-Samples\Twain_DS_sample01\build-src-Unnamed-Release\Makefile.Debug [debug\TWAINDS_FreeImage.dll] Error 1120
                jom: C:\ODIImages\Source\Twain\twain-samples-master\twain-samples-master\TWAIN-Samples\Twain_DS_sample01\build-src-Unnamed-Release\Makefile [debug] Error 2
                14:31:51: The process "C:\Qt\qtcreator-4.5.0\bin\jom.exe" exited with code 2.
                Error while building/deploying project src (kit: Unnamed)
                The kit Unnamed has configuration issues which might be the root cause for this problem.
                When executing step "Make"
                14:31:51: Elapsed time: 00:06.

                debug\TWAINDS_FreeImage.dll:-1: error: LNK1120: 1 unresolved externals

                1 Reply Last reply
                0
                • mrjjM Offline
                  mrjjM Offline
                  mrjj
                  Lifetime Qt Champion
                  wrote on last edited by
                  #27

                  Hi
                  seems you need to link to
                  Shell32.lib also
                  https://msdn.microsoft.com/en-us/library/windows/desktop/bb762204(v=vs.85).aspx

                  1 Reply Last reply
                  1
                  • B Offline
                    B Offline
                    bhim
                    wrote on last edited by
                    #28

                    Thanks. I m able to build and run it now. But not able to find the output file, a .ds file anywhere? Can you please help me find where project is generating this file.

                    Below is pro file code

                    unix {
                    TEMPLATE = lib
                    VERSION = 1.0
                    DEFINES += UNIX
                    }
                    PROJECT_FILE_NAME = TWAINDS_FreeImage
                    TARGET = $$PROJECT_FILE_NAME
                    LIBS += -lfreeimage

                    TWAIN datasources end with a .ds instead of .so

                    QMAKE_POST_LINK = cp
                    $(TARGET)
                    $${PROJECT_FILE_NAME}.ds
                    ds.path = /usr/local/lib/twain/FreeImage
                    ds.files = $${PROJECT_FILE_NAME}.ds
                    TWAIN_logo.png
                    INSTALLS += ds
                    QMAKE_CLEAN = $${PROJECT_FILE_NAME}.ds
                    INCLUDEPATH = /usr/local/include
                    ../../pub/external/include
                    ../../pub/include
                    ../../visual_studio/Debug32
                    ../../common
                    LIBS += -L"../../pub/external/lib" -lFreeImage
                    SOURCES += ../../common/CTiffWriter.cpp
                    ../../common/CommonTWAIN.cpp
                    CommonDS.cpp
                    CScanner_FreeImage.cpp
                    CTWAINDS_Base.cpp
                    CTWAINDS_FreeImage.cpp
                    DSMInterface.cpp
                    TWAINContainer.cpp
                    TWAINContainerFix32.cpp
                    TWAINContainerFrame.cpp
                    TWAINContainerInt.cpp
                    CTWAINDS_Sample1.cpp
                    TWAIN_UI.cpp
                    TWAINContainerString.cpp
                    TWAINContainerFix32Range.cpp
                    TWAINContainerBool.cpp
                    QT_UI.cpp
                    Qt_MainForm.cpp
                    Qt_About.cpp
                    Qt_ProfileName.cpp
                    HEADERS += ../../common/Common.h
                    ../../common/CommonTWAIN.h
                    ../../common/CTiffWriter.h
                    CScanner_FreeImage.h
                    CTWAINDS_Base.h
                    CTWAINDS_FreeImage.h
                    CommonDS.h
                    DSMInterface.h
                    TWAINContainerFix32.h
                    TWAINContainerFrame.h
                    TWAINContainer.h
                    TWAINContainerInt.h
                    CTWAINDS_Sample1.h
                    TWAIN_UI.h
                    TWAINContainerString.h
                    TWAINContainerFix32Range.h
                    TWAINContainerBool.h
                    QT_UI.h
                    Qt_MainForm.h
                    Qt_About.h
                    Qt_ProfileName.h
                    ui_About.h
                    ui_MainForm.h
                    ui_About.h
                    TEMPLATE = lib
                    CONFIG += warn_on
                    debug
                    x86 ppc

                    QMAKE_BUNDLE_EXTENSION = ds

                    this project doesn't need any QT libs.

                    QMAKE_LIBS_QT =
                    QMAKE_LIBS_QT_THREAD =
                    FORMS += MainForm.ui
                    About.ui
                    ProfileName.ui
                    RESOURCES += qtresources.qrc

                    unix|win32: LIBS += -lshell32

                    mrjjM 1 Reply Last reply
                    0
                    • B bhim

                      Thanks. I m able to build and run it now. But not able to find the output file, a .ds file anywhere? Can you please help me find where project is generating this file.

                      Below is pro file code

                      unix {
                      TEMPLATE = lib
                      VERSION = 1.0
                      DEFINES += UNIX
                      }
                      PROJECT_FILE_NAME = TWAINDS_FreeImage
                      TARGET = $$PROJECT_FILE_NAME
                      LIBS += -lfreeimage

                      TWAIN datasources end with a .ds instead of .so

                      QMAKE_POST_LINK = cp
                      $(TARGET)
                      $${PROJECT_FILE_NAME}.ds
                      ds.path = /usr/local/lib/twain/FreeImage
                      ds.files = $${PROJECT_FILE_NAME}.ds
                      TWAIN_logo.png
                      INSTALLS += ds
                      QMAKE_CLEAN = $${PROJECT_FILE_NAME}.ds
                      INCLUDEPATH = /usr/local/include
                      ../../pub/external/include
                      ../../pub/include
                      ../../visual_studio/Debug32
                      ../../common
                      LIBS += -L"../../pub/external/lib" -lFreeImage
                      SOURCES += ../../common/CTiffWriter.cpp
                      ../../common/CommonTWAIN.cpp
                      CommonDS.cpp
                      CScanner_FreeImage.cpp
                      CTWAINDS_Base.cpp
                      CTWAINDS_FreeImage.cpp
                      DSMInterface.cpp
                      TWAINContainer.cpp
                      TWAINContainerFix32.cpp
                      TWAINContainerFrame.cpp
                      TWAINContainerInt.cpp
                      CTWAINDS_Sample1.cpp
                      TWAIN_UI.cpp
                      TWAINContainerString.cpp
                      TWAINContainerFix32Range.cpp
                      TWAINContainerBool.cpp
                      QT_UI.cpp
                      Qt_MainForm.cpp
                      Qt_About.cpp
                      Qt_ProfileName.cpp
                      HEADERS += ../../common/Common.h
                      ../../common/CommonTWAIN.h
                      ../../common/CTiffWriter.h
                      CScanner_FreeImage.h
                      CTWAINDS_Base.h
                      CTWAINDS_FreeImage.h
                      CommonDS.h
                      DSMInterface.h
                      TWAINContainerFix32.h
                      TWAINContainerFrame.h
                      TWAINContainer.h
                      TWAINContainerInt.h
                      CTWAINDS_Sample1.h
                      TWAIN_UI.h
                      TWAINContainerString.h
                      TWAINContainerFix32Range.h
                      TWAINContainerBool.h
                      QT_UI.h
                      Qt_MainForm.h
                      Qt_About.h
                      Qt_ProfileName.h
                      ui_About.h
                      ui_MainForm.h
                      ui_About.h
                      TEMPLATE = lib
                      CONFIG += warn_on
                      debug
                      x86 ppc

                      QMAKE_BUNDLE_EXTENSION = ds

                      this project doesn't need any QT libs.

                      QMAKE_LIBS_QT =
                      QMAKE_LIBS_QT_THREAD =
                      FORMS += MainForm.ui
                      About.ui
                      ProfileName.ui
                      RESOURCES += qtresources.qrc

                      unix|win32: LIBS += -lshell32

                      mrjjM Offline
                      mrjjM Offline
                      mrjj
                      Lifetime Qt Champion
                      wrote on last edited by
                      #29

                      @bhim
                      Its not in build folder?

                      1 Reply Last reply
                      0
                      • B Offline
                        B Offline
                        bhim
                        wrote on last edited by
                        #30

                        Its there, but its in dll extension, its supposed to be .ds extension.

                        mrjjM 1 Reply Last reply
                        0
                        • B bhim

                          Its there, but its in dll extension, its supposed to be .ds extension.

                          mrjjM Offline
                          mrjjM Offline
                          mrjj
                          Lifetime Qt Champion
                          wrote on last edited by
                          #31

                          @bhim
                          What is a .ds file ?

                          1 Reply Last reply
                          0
                          • B Offline
                            B Offline
                            bhim
                            wrote on last edited by
                            #32

                            ds is Twain data source, OR Twain Driver. See below from my pro file, based on this it should have generated

                            TWAIN datasources end with a .ds instead of .so

                            QMAKE_POST_LINK = cp
                            $(TARGET)
                            $${PROJECT_FILE_NAME}.ds
                            ds.path = /usr/local/lib/twain/FreeImage
                            ds.files = $${PROJECT_FILE_NAME}.ds
                            TWAIN_logo.png
                            INSTALLS += ds
                            QMAKE_CLEAN = $${PROJECT_FILE_NAME}.ds

                            mrjjM 1 Reply Last reply
                            0
                            • B bhim

                              ds is Twain data source, OR Twain Driver. See below from my pro file, based on this it should have generated

                              TWAIN datasources end with a .ds instead of .so

                              QMAKE_POST_LINK = cp
                              $(TARGET)
                              $${PROJECT_FILE_NAME}.ds
                              ds.path = /usr/local/lib/twain/FreeImage
                              ds.files = $${PROJECT_FILE_NAME}.ds
                              TWAIN_logo.png
                              INSTALLS += ds
                              QMAKE_CLEAN = $${PROJECT_FILE_NAME}.ds

                              mrjjM Offline
                              mrjjM Offline
                              mrjj
                              Lifetime Qt Champion
                              wrote on last edited by
                              #33

                              @bhim
                              Ok but a SO file is a DLL.
                              so being on windows, i wonder if the DS is just a DLL.

                              Is that to load into the sample project ?

                              1 Reply Last reply
                              0
                              • B Offline
                                B Offline
                                bhim
                                wrote on last edited by
                                #34

                                I change the DLL extension to ds and replaced with original DS file. It dd not work, it was not even detected. I think if somehow i could emit a .ds file , it will work. Below is the project property of visual studio project which generated original ds file

                                0_1513895238850_1e6725b3-35b3-43c1-8cc2-32666e9a61cf-image.png

                                1 Reply Last reply
                                0
                                • mrjjM Offline
                                  mrjjM Offline
                                  mrjj
                                  Lifetime Qt Champion
                                  wrote on last edited by
                                  #35

                                  Sorry i have no idea what / how a ds file should be produced.
                                  Site says
                                  copy TWAINDS_Sample[32|64].ds to /Windows/twain_[32|64]/sample2
                                  so it looks like a DLL. but sadly i cant find out more.

                                  1 Reply Last reply
                                  0
                                  • B Offline
                                    B Offline
                                    bhim
                                    wrote on last edited by
                                    #36

                                    Coding wise everything looks fine, I am trying to debug ds file using a sample connection application. But connection application itself is giving below error. Can you please help.

                                    0_1513898201339_529f0520-4c9a-47d1-9056-e064c3587660-image.png

                                    1 Reply Last reply
                                    0
                                    • mrjjM Offline
                                      mrjjM Offline
                                      mrjj
                                      Lifetime Qt Champion
                                      wrote on last edited by
                                      #37

                                      HI
                                      The UNUSED ARG ?

                                      1 Reply Last reply
                                      0

                                      • Login

                                      • Login or register to search.
                                      • First post
                                        Last post
                                      0
                                      • Categories
                                      • Recent
                                      • Tags
                                      • Popular
                                      • Users
                                      • Groups
                                      • Search
                                      • Get Qt Extensions
                                      • Unsolved