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QFileSystemWatcher new file added

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  • A Offline
    A Offline
    abdullahzubair109
    wrote on last edited by
    #1

    How can I trigger a signal with new filename added to a directory using QFileSystemWatcher

    JonBJ 1 Reply Last reply
    0
    • A abdullahzubair109

      How can I trigger a signal with new filename added to a directory using QFileSystemWatcher

      JonBJ Offline
      JonBJ Offline
      JonB
      wrote on last edited by
      #2

      @abdullahzubair109
      https://doc.qt.io/qt-5/qfilesystemwatcher.html#directoryChanged ?

      A 1 Reply Last reply
      2
      • JonBJ JonB

        @abdullahzubair109
        https://doc.qt.io/qt-5/qfilesystemwatcher.html#directoryChanged ?

        A Offline
        A Offline
        abdullahzubair109
        wrote on last edited by abdullahzubair109
        #3

        @JonB no... It will return the directory where new file added or renamed or removed.. Not the path for newly added file.. Correct me if I am wrong

        JonBJ 1 Reply Last reply
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        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #4

          Hi,

          If you need that level of details, may QFileSystemModel would be more interesting. You can use the rowsInserted signal to grab the information you are after.

          Otherwise, you should keep a list of the entries of the folder you are watching in order to compare it to it's new content when directoryChanged is called.

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

          1 Reply Last reply
          2
          • A abdullahzubair109

            @JonB no... It will return the directory where new file added or renamed or removed.. Not the path for newly added file.. Correct me if I am wrong

            JonBJ Offline
            JonBJ Offline
            JonB
            wrote on last edited by
            #5

            @abdullahzubair109
            QFileSystemWatcher::directoryChanged signal is as good as it gets :) You have to figure out what got added. I'm not sure whether @SGaist is saying QFileSystemModel::rowsInserted can be used to automatically monitor changes in the background.

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