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Can not load my .dll file in the app that built by static-release when execute in folder



  • Hi, all

    I developed an application and another my library for the former app. The library is dynamically load using QLibrary.
    And everything went fine in debug(app)+debug(lib) and release+release whether if I executed the app in QT(F5) or folder .

    However, when I built my app as "static-release" and loaded my static-release lib(means that static for QT libs. I still want use my library as dynamic loading), the app report "Cannot load library".
    Strangely This fail is ONLY when I run the app in folder, but all be fine when run in QT(F5).
    I had checked the dll file is definitely exist under my app folder(using QFile::exists()), BUT the fail still reported.
    Can anyone help me to solve this question? Although release+release is work for me, but I do not want to attach QT dll in the app folder.

    ps, I know when I configured, it would show about this :

    WARNING: Using static linking will disable the use of dynamically loaded plugins.

    I don't know whether if this cause my fail. Please tell me if my own library (dll) is considered as the plugin.

    Thanks!


  • Lifetime Qt Champion

    You should set the env var QT_DEBUG_PLUGINS to 1 and take a look at the output.



  • @Christian-Ehrlicher Thx for your reply.

    I set the QT_DEBUG_PLUGINS to 1 in env
    218264df-a298-4a6b-a75e-dbe40a9dc802-圖片.png

    But I don't know how to get message. I used CONFIG += console, but there is no any message. Thanks.


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