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  1. Qt
  2. QTBUG-106710

Regression: macOS windows with Qt::FramelessWindowHint are resizable

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    • Icon: Bug Bug
    • Resolution: Duplicate
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    • 6.5.0 Beta1
    • 6.3.0, 6.3.1, 6.3.2, 6.4.0 RC1
    • GUI: Window management
    • None
    • macOS
    • 9796670732 (qt/qtbase/dev) 9796670732 (qt/tqtc-qtbase/dev) 5d23caf776 (qt/qtbase/6.4) 5d23caf776 (qt/tqtc-qtbase/6.4)

      With Qt 6.x windows having the Qt::FramelessWindowHint flag set are now resizable by dragging the the window edges. This was not the case with Qt 5.15 and also contradicts the documentation which says "Produces a borderless window. The user cannot move or resize a borderless window via the window system".

      Please compare the behaviour of the "WindowFlags" example when build against 5.15 and 6.3.

      Maybe this is caused by 4c78ef80ca7. This unconditionally adds NSWindowStyleMaskResizable to the cocoa window flags.

        For Gerrit Dashboard: QTBUG-106710
        # Subject Branch Project Status CR V
        433694,3 Clarify that FramelessWindowHint does not guarantee fixed sized windows dev qt/qtbase Status: MERGED +2 0
        433925,2 Clarify that FramelessWindowHint does not guarantee fixed sized windows 6.4 qt/qtbase Status: MERGED +2 0

            vestbo Tor Arne Vestbø
            njeisecke Nils Jeisecke
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