diff options
Diffstat (limited to 'src/plugins/platforms')
| -rw-r--r-- | src/plugins/platforms/windows/qwindowsmousehandler.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/plugins/platforms/windows/qwindowsmousehandler.cpp b/src/plugins/platforms/windows/qwindowsmousehandler.cpp index acb692579b..b3c31c3de9 100644 --- a/src/plugins/platforms/windows/qwindowsmousehandler.cpp +++ b/src/plugins/platforms/windows/qwindowsmousehandler.cpp @@ -271,6 +271,16 @@ bool QWindowsMouseHandler::translateMouseEvent(QWindow *window, HWND hwnd, QWindow *currentWindowUnderMouse = platformWindow->hasMouseCapture() ? QWindowsScreen::windowAt(globalPosition, CWP_SKIPINVISIBLE | CWP_SKIPTRANSPARENT) : window; + // QTBUG-44332: When Qt is running at low integrity level and + // a Qt Window is parented on a Window of a higher integrity process + // using QWindow::fromWinId() (for example, Qt running in a browser plugin) + // ChildWindowFromPointEx() may not find the Qt window (failing with ERROR_ACCESS_DENIED) + if (!currentWindowUnderMouse) { + const QRect clientRect(QPoint(0, 0), window->size()); + if (clientRect.contains(winEventPosition / QWindowsScaling::factor())) + currentWindowUnderMouse = window; + } + compressMouseMove(&msg); // Qt expects the platform plugin to capture the mouse on // any button press until release. |