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  4. Static link: Q_IMPORT_PLUGIN(qico) unresolved external symbol

Static link: Q_IMPORT_PLUGIN(qico) unresolved external symbol

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  • raven-worxR Offline
    raven-worxR Offline
    raven-worx
    Moderators
    wrote on last edited by
    #10

    [quote author="igromanru" date="1386089950"]Ok, but how can I use a .pro file? SO far as I know, Visual Studio don´t using the .pro file for compiling the application.
    And there are no .pro, .pri or other Qt files in my project folder.[/quote]
    Then add the qico.lib to the project's "Additional Dependencies" option.
    Right click on the project and click Properties. In the "Linker"-Section you can add the qico.lib file and set a "Additional Library Directories". So the Linker can find the symbols.

    --- SUPPORT REQUESTS VIA CHAT WILL BE IGNORED ---
    If you have a question please use the forum so others can benefit from the solution in the future

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    • I Offline
      I Offline
      igromanru
      wrote on last edited by
      #11

      [quote author="raven-worx" date="1386317327"]
      Then add the qico.lib to the project's "Additional Dependencies" option.
      Right click on the project and click Properties. In the "Linker"-Section you can add the qico.lib file and set a "Additional Library Directories". So the Linker can find the symbols.
      [/quote]
      I got it all the time.
      That how it looks like: "JPG":https://www.dropbox.com/s/gf0work3tdci24h/add_dep.JPG (German version)
      It´s a screenshot of the debug settings, but the release settings looks similiar.

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      • raven-worxR Offline
        raven-worxR Offline
        raven-worx
        Moderators
        wrote on last edited by
        #12

        and $(QTDIR) points to the correct path? You can check if you click on the "Command Line" entry in the Linker section

        --- SUPPORT REQUESTS VIA CHAT WILL BE IGNORED ---
        If you have a question please use the forum so others can benefit from the solution in the future

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        • I Offline
          I Offline
          igromanru
          wrote on last edited by
          #13

          [quote author="raven-worx" date="1386321519"]and $(QTDIR) points to the correct path? You can check if you click on the "Command Line" entry in the Linker section[/quote]
          If $(QTDIR) would be a wrong path, I would have many problems in the whole project. And the windows plugin works too.

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          • raven-worxR Offline
            raven-worxR Offline
            raven-worx
            Moderators
            wrote on last edited by
            #14

            haha...good point... sry for this :)

            --- SUPPORT REQUESTS VIA CHAT WILL BE IGNORED ---
            If you have a question please use the forum so others can benefit from the solution in the future

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            • I Offline
              I Offline
              igromanru
              wrote on last edited by
              #15

              No more ideas?
              I think I will try to make a static build by myself. Maybe it will help.

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              • K Offline
                K Offline
                kroman
                wrote on last edited by
                #16

                This works for me:
                ...
                Q_IMPORT_PLUGIN (QICOPlugin)
                ...

                I have looked in qicod.lib and have found qt_static_plugin_QICOPlugin function symbol.

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                • S Offline
                  S Offline
                  steno
                  wrote on last edited by
                  #17

                  [quote author="igromanru" date="1386003876"]
                  "Q_IMPORT_PLUGIN(QWindowsIntegrationPlugin)" works great.
                  [/quote]

                  Which libraries did you link with to get this to work? I'm trying to clear up a small hand full of linker errors with qwindows.lib.

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                  • I Offline
                    I Offline
                    igromanru
                    wrote on last edited by
                    #18

                    [quote author="couragic" date="1390806939"]This works for me:
                    ...
                    Q_IMPORT_PLUGIN (QICOPlugin)
                    ...

                    I have looked in qicod.lib and have found qt_static_plugin_QICOPlugin function symbol.[/quote]
                    Thank you very much. This was the solution!

                    [quote author="steno" date="1393375998"][quote author="igromanru" date="1386003876"]
                    "Q_IMPORT_PLUGIN(QWindowsIntegrationPlugin)" works great.
                    [/quote]

                    Which libraries did you link with to get this to work? I'm trying to clear up a small hand full of linker errors with qwindows.lib.[/quote]
                    Sorry for late answer.
                    This is all my linked LIBs:
                    qtmain.lib
                    Qt5Core.lib
                    Qt5Gui.lib
                    Qt5Widgets.lib
                    qico.lib
                    ws2_32.lib
                    sicudt.lib
                    sicuuc.lib
                    qminimal.lib
                    qwindows.lib
                    opengl32.lib
                    Qt5PlatformSupport.lib
                    imm32.lib
                    winmm.lib

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                    • I igromanru

                      Hello Qt-Community,

                      I go a unsolved problem. I couln´t find a solution in google or in the forum so I have to ask here.

                      I want to compile a static version of my program for privat use but I got the following problem:
                      I see no icons in my application, as a solution I have found "this":http://qt-project.org/forums/viewthread/13367 thread.
                      So I have added "Q_IMPORT_PLUGIN(qico)" in my main.cpp.
                      @#include <QApplication>
                      #include <QtPlugin>

                      Q_IMPORT_PLUGIN(QWindowsIntegrationPlugin)
                      Q_IMPORT_PLUGIN(qico)@

                      If I try to compile, I get this error:
                      @main.obj : error LNK2019: unresolved external symbol ""struct QStaticPlugin const __cdecl qt_static_plugin_qico(void)" (?qt_static_plugin_qico@@YA?BUQStaticPlugin@@XZ)" in function ""public: __thiscall StaticqicoPluginInstance::StaticqicoPluginInstance(void)" (??0StaticqicoPluginInstance@@QAE@XZ)".@

                      My Dev system:
                      Visual Studio 2012, Windows 7 x64.
                      Under Linker-> Input I have added "qico.lib" and all other necessary libs as additional dependencies.
                      Without "Q_IMPORT_PLUGIN(qico)" I can compile my application and it´s works fine.

                      J Offline
                      J Offline
                      John Sebastian Peterson
                      wrote on last edited by
                      #19

                      i got this message from CONFIG+=static

                      the problem is that StaticqicoPluginInstance is nowhere in the 5.4 package. it has no qico.lib

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                      • SGaistS Offline
                        SGaistS Offline
                        SGaist
                        Lifetime Qt Champion
                        wrote on last edited by
                        #20

                        Hi and welcome to devnet,

                        You won't find this file in a Qt package as they only provide dynamic libraries. If you want a static Qt you'll have to build it yourself. Be aware of the licensing issues that comes with it.

                        Interested in AI ? www.idiap.ch
                        Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                        • P Offline
                          P Offline
                          Peter_Uspenskiy
                          wrote on last edited by
                          #21

                          You need to add QT_STATICPLUGIN to your preprocessor macro, when buildimg plugin

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