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Why Q_OBJECT macro needs QObject as its base class

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  • V Offline
    V Offline
    Vinoth Rajendran4
    wrote on last edited by
    #1

    Why having a class with Q_OBJECT does not compile, unless the class inherits QObject as its base class.

    class Text
    {
    Q_OBJECT
    };
    

    I could not try find the answer for it myself. Can someone please help me understand the basic of this.

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    • Christian EhrlicherC Offline
      Christian EhrlicherC Offline
      Christian Ehrlicher
      Lifetime Qt Champion
      wrote on last edited by
      #2

      Because this macro is using QObject functionality.

      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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