1 files changed, 8 insertions, 4 deletions
diff --git a/src/gui/kernel/qwindowsysteminterface.cpp b/src/gui/kernel/qwindowsysteminterface.cpp
index 759671fbd7..40a298226a 100644
--- a/src/gui/kernel/qwindowsysteminterface.cpp
+++ b/src/gui/kernel/qwindowsysteminterface.cpp
@@ -857,8 +857,8 @@ void QWindowSystemInterface::handleScreenGeometryChange(QScreen *screen, const Q
 
 void QWindowSystemInterface::handleScreenLogicalDotsPerInchChange(QScreen *screen, qreal dpiX, qreal dpiY)
 {
-    QWindowSystemInterfacePrivate::ScreenLogicalDotsPerInchEvent *e =
-            new QWindowSystemInterfacePrivate::ScreenLogicalDotsPerInchEvent(screen, dpiX, dpiY); // ### tja
+    const QDpi effectiveDpi = QPlatformScreen::overrideDpi(QDpi{dpiX, dpiY});
+    auto e = new QWindowSystemInterfacePrivate::ScreenLogicalDotsPerInchEvent(screen, effectiveDpi.first, effectiveDpi.second);
     QWindowSystemInterfacePrivate::handleWindowSystemEvent(e);
 }
 
@@ -924,7 +924,11 @@ QPlatformDropQtResponse QWindowSystemInterface::handleDrop(QWindow *window, cons
     \note This function can only be called from the GUI thread.
 */
 
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+bool QWindowSystemInterface::handleNativeEvent(QWindow *window, const QByteArray &eventType, void *message, qintptr *result)
+#else
 bool QWindowSystemInterface::handleNativeEvent(QWindow *window, const QByteArray &eventType, void *message, long *result)
+#endif
 {
     return QGuiApplicationPrivate::processNativeEvent(window, eventType, message, result);
 }
@@ -1111,7 +1115,7 @@ bool QWindowSystemInterface::flushWindowSystemEvents(QEventLoop::ProcessEventsFl
     } else {
         sendWindowSystemEvents(flags);
     }
-    return QWindowSystemInterfacePrivate::eventAccepted.load() > 0;
+    return QWindowSystemInterfacePrivate::eventAccepted.loadRelaxed() > 0;
 }
 
 void QWindowSystemInterface::deferredFlushWindowSystemEvents(QEventLoop::ProcessEventsFlags flags)
@@ -1152,7 +1156,7 @@ bool QWindowSystemInterface::sendWindowSystemEvents(QEventLoop::ProcessEventsFla
         // (excluding flush events). This state can then be
         // returned by flushWindowSystemEvents().
         if (event->type != QWindowSystemInterfacePrivate::FlushEvents)
-            QWindowSystemInterfacePrivate::eventAccepted.store(event->eventAccepted);
+            QWindowSystemInterfacePrivate::eventAccepted.storeRelaxed(event->eventAccepted);
 
         delete event;
     }