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  1. Qt
  2. QTBUG-18729

QFileSystemModel doesn't update the list of drives/storage devices in Windows

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    • 8e79806d08ab77aa0f87b69a2ef65789216f41c0 (qtbase/dev, 27.10.2016, 5.9)

    Description

      Our team is developing testing tools for Harmattan. We have an application running on Linux and Windows and use QFileSystemModel to get a list of connected mass storage devices. On Linux we use the root path "/media" and on Windows the root path is an empty string to get a list of all drives and storage devices. This works for the most part but on Windows the used model does not update when new storage devices are connected/disconnected. Maybe QFileSystemMonitor is unable to monitor changes in the list of storage devices?

      We're using Qt 4.7.0 (qt-sdk-win-opensource-2010.05)
      Following workaround helps:
      Calling "setRootPath" twice, one for another path (doesn't really matter which one but should be different from the cuurent one), and immediate after that set again its root path with the method "setRootPath" to desire one.

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          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-59851 QFileSystemWatcher does not detect when a USB drive with watched files is removed

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-8240 QFileSystemModel not updating upon removable disk removal

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-53436 QFileSystemModel not updated when USB removed

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          relates to

          Suggestion - Public suggestions QTBUG-14290 Make it possible to turn off the cache for QFileSystemModel

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Closed
          resulted in

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-32457 QtSystemInfo repeatedly pops up a quaint dialog about A: drive not being ready

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          For Gerrit Dashboard: QTBUG-18729
          # Subject Branch Project Status CR V
          158745,8 WIP: QFileInfoGatherer/Windows: Listen for WM_DEVICECHANGE. dev qt/qtbase Status: ABANDONED -2 0
          158949,3 Windows: Suppress error dialogs when querying logical drives. 5.6 qt/qtbase Status: MERGED +2 0
          159826,14 QFileSystemWatcher/Win32: Listen for WM_DEVICECHANGE dev qt/qtbase Status: MERGED -2 0
          161070,7 QFileInfoGatherer/Win32: Connect to drive arrival/removal signals of watcher dev qt/qtbase Status: MERGED +2 0
          201057,4 Windows/QFileSystemModel: Fix updating of removed drives 5.9 qt/qtbase Status: MERGED +2 0

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              owolff Oliver Wolff
              raimo.gratseff Raimo Gratseff (Inactive)
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                Created:
                Updated:
                Resolved: