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QObject: Make it clear we don't install duplicated event filters

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Pick-to: 6.7 6.6 6.5 6.2 5.15
Change-Id: I3048b50700880dd2445a5a65823fef02b196ce7d
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
This commit is contained in:
Jarek Kobus 2024-01-05 11:12:46 +01:00
parent f83ec0c76b
commit 43de846442
1 changed files with 3 additions and 0 deletions
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src/corelib/kernel/qobject.cpp
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@ -2311,6 +2311,9 @@ void QObjectPrivate::setParent_helper(QObject *o)
If multiple event filters are installed on a single object, the If multiple event filters are installed on a single object, the
filter that was installed last is activated first. filter that was installed last is activated first.
If \a filterObj has already been installed for this object,
this function moves it so it acts as if it was installed last.
Here's a \c KeyPressEater class that eats the key presses of its Here's a \c KeyPressEater class that eats the key presses of its
monitored objects: monitored objects: