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  1. Qt
  2. QTBUG-122226

Use Windows' MSG timestamps for input events

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    • Task
    • Resolution: Fixed
    • Not Evaluated
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    • QPA: Windows
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    • e68b57e2e (dev)

    Description

      https://codereview.qt-project.org/c/qt/qtbase/+/452128 introduced the idea of using Windows' MSGs' own timestamps for input events, instead of having QPA use its own timer. This in principle should be a net positive as the WM timestamps are more accurate, and even take into account the case where an application may get stuck during event processing (cf. the commit message).

      However this caused a regression in some QtQuick autotests (QTBUG-110596), and ultimately the patch got reverted in https://codereview.qt-project.org/c/qt/qtbase/+/456668 .

      The regression should be investigated, and the revert, well, reverted. We use WM timestamps on other platforms, Windows should also be using them.

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            owolff Oliver Wolff
            peppe Giuseppe D'Angelo
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