Safiyyah Moosa 1f6346df1c Doc: Mention how devicePixelRatio tracks changes ...

Currently the QWindow::devicePixelRatio() documentation mentions that the device
pixel ratio can change, but it does not explain how to track the changes.
This patch adds that the QWindow instance receives the event of type
QEvent::DevicePixelRatioChange when the device pixel ratio changes.

Fixes: QTBUG-128182
Pick-to: 6.8
Change-Id: I2107015a07f30167c9f7324959b47ada0a75988d
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
(cherry picked from commit ada114f8b37b62fe80332105507b1afc20424aa6)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

2025-03-21 15:11:44 +00:00

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Doc: Mention how devicePixelRatio tracks changes

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