QtQuick Application cursh ,When open the MacOS system virtual keyboard.

[cb__]

Hi,
When I testing my QtQuick Application on MacOS, I found a weird crash issue.

I open the MacOS system virtual keyboard and my qml Window was try to creat a modal Dialog dynamically, when I close and call destroy() the modal Dialog Window, my application was crashed. My Qt version is 5.15.2

here is my code example：

main.qml
Window{
    id: mainWindow
    flags: Qt.FramelessWindowHint | Qt.Window
    Button{
        onClicked:{
            var component = Qt.createComponent("DialogWindow.qml");
            var win = component.createObject(mainWindow);
            win.show();
        }
    }
}

DialogWindow.qml
Window{
    id: dialogWindow
    modality: Qt.ApplicationModal
    flags: Qt.FramelessWindowHint | Qt.Dialog
    Button{
        onClicked:{
            dialogWindow.close();
            dialogWindow.destroy();
        }
    }
}

[Axel Spoerl]

I am just guessing.
On the one hand, the stack trace doesn’t show a crash in a Qt library. On the other hand, the button destroys its parent in a slot. That’s brave. I’d try to move the destruction elsewhere, or omit it just to see if that’s the issue.

[cb__]

Thanks for your reply.
One thing to note is that if I hadn't turned on the virtual keyboard on MacOS, this Dialog destruction wouldn't have caused the program to crash.