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  1. Qt
  2. QTBUG-113711

Windows: QInputDevice::devices() returns empty list

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: P2: Important P2: Important
    • None
    • 6.2.8, 6.5.0
    • GUI: Basic Input System (keyboard, mouse, touch)
    • None
    • Windows 10 22H2, MSVC 2019 or MinGW 11.2.0
    • Windows
    • 8d11e05f8 (dev), 62f83ac45 (6.5), ea4501366 (tqtc/lts-6.2)

      Add this line the main() function of any project:

      qDebug() << "Devices:" << QInputDevice::devices();

      This seems to produce correct information on macOS 13.3.1 and Ubuntu 22.04, but returns an empty list on Windows 10 22H2 (physical machine).

       

      Notes

      I do have the following devices plugged in, which are all recognized by Windows Device Manager:

      • A very basic wired USB keyboard
      • A Logitech wireless dongle, that is paired to one keyboard and one mouse

      Unplugging either one of the USB connectors and rerunning the app makes no difference.

        1. win-device-manager.png
          win-device-manager.png
          32 kB
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            owolff Oliver Wolff
            skoh-qt Sze Howe Koh
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              Created:
              Updated:

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