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  1. Qt
  2. QTBUG-117779

[Reg 6.5.3->6.5.2] Showing a secondary Window is broken: the second Window unexpectedly depends on the main Window position

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    • Windows
    • 614e0f1da (dev), 19471b215 (6.6), 581eecd59 (6.5)

      A minimal reproducer:

      Have the following code as "SubWindow"

      import QtQuick

Window {
    width: 400
    height: 300
    title: "Secondary window"
}

      Then instantiate it in Main.qml:

      import QtQuick
import QtQuick.Controls

ApplicationWindow {
    id: window
    width: 600
    height: 400
    visible: true

    Button {
        text: "Open secondary window"
        onClicked: secondary_window.show()
    }

    SubWindow{
        id: secondary_window
    }
}

      Run application and click button, a second Window pops up.
      In Qt 6.5.2: Geometry of the second Window is independent from the main Window. Moving/resizing the main Window does not influence the second Window by any means.
      In Qt 6.5.3: Moving/resizing the main Window weirdly resizes the second Window. The behavior is totally unexpected and may cause crash in certain circumstances (reportedly QWindowsWindow::savedDpi).

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            timothee.keller Timothée Keller (Inactive)
            luqiaochen Luqiao Chen
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              Created:
              Updated:
              Resolved:

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