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Document that dialog parent relationship does not imply stacking order 

On macOS, and most probably some X11 window managers, the parent/child
relationship of the dialog is not possible to propagate to the platform,
and the only determining factor of whether or not the windows stack on
top of each other is the modal state of the window.

Task-number: QTBUG-34767
Change-Id: I8b4b4910e3f905c44e577544fc347dbded373848
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
bb10
Tor Arne Vestbø 2019-02-13 14:29:32 +01:00
parent 4eda22ea0d
commit 7a127fb4b6
1 changed files with 7 additions and 0 deletions
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7
src/widgets/dialogs/qdialog.cpp
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@ -246,6 +246,13 @@ void QDialogPrivate::deletePlatformHelper()
window-system properties for the widget (in particular it will
reset the Qt::Dialog flag).
\note The parent relationship of the dialog does \e{not} imply
that the dialog will always be stacked on top of the parent
window. To ensure that the dialog is always on top, make the
dialog modal. This also applies for child windows of the dialog
itself. To ensure that child windows of the dialog stay on top
of the dialog, make the child windows modal as well.
\section1 Modal Dialogs
A \b{modal} dialog is a dialog that blocks input to other