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Forum Update on Monday, May 27th 2025

DLL file version and file name

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  • A Offline
    A Offline
    addebito
    wrote on 12 Feb 2020, 18:44 last edited by
    #1

    I've created my first dll in Qt, everithing works fine but now I'd like to assign the file version, so I wrote in .pro file this :
    VERSION = 1.0.0.0
    Now when I build the DLL the name of file change from mylibrary.dll to mylibrary1.dll.

    If I change the version to:
    VERSION = 2.0.0.0
    ..the compiled file name get the mylibrary2.dll.

    Is it correct ?????
    Why?

    In this whay when I'll change the Major Number I'll have to change the exe to load a differen library....

    QT 5.12.7
    Windows 10

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    • S Offline
      S Offline
      SGaist
      Lifetime Qt Champion
      wrote on 12 Feb 2020, 19:27 last edited by
      #2

      Hi,

      Usually when a library changes its major version it means there are breaking changes so a rebuild of the application is needed anyway.

      Minor and patch versions are meant to replace current versions without rebuilding your application unless you want to make use of a new API provided by a new minor release.

      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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      • C Offline
        C Offline
        Christian Ehrlicher
        Lifetime Qt Champion
        wrote on 12 Feb 2020, 19:28 last edited by
        #3

        @addebito said in DLL file version and file name:

        Is it correct ?????
        Why?

        Why not? What do you think is wrong?

        Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
        Visit the Qt Academy at https://academy.qt.io/catalog

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        • A Offline
          A Offline
          addebito
          wrote on 12 Feb 2020, 20:27 last edited by
          #4

          Hi @SGaist , @Christian-Ehrlicher ,
          you are right, I never imagined it was so good.
          I thought I had to specify it somewhere... But, thanks for your FAST reply.
          ...I never stop learning.

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          12 Feb 2020, 18:44

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