diff --git a/src/gui/kernel/qwindowsysteminterface.cpp b/src/gui/kernel/qwindowsysteminterface.cpp
index 3ab2f59661d..8c429150a85 100644
--- a/src/gui/kernel/qwindowsysteminterface.cpp
+++ b/src/gui/kernel/qwindowsysteminterface.cpp
@@ -441,10 +441,12 @@ void QWindowSystemInterfacePrivate::removeWindowSystemEvent(WindowSystemEvent *e
     windowSystemEventQueue.remove(event);
 }
 
-void QWindowSystemInterfacePrivate::handleWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent *ev)
+bool QWindowSystemInterfacePrivate::handleWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent *ev)
 {
+    bool accepted = true;
     if (synchronousWindowSystemEvents) {
         QGuiApplicationPrivate::processWindowSystemEvent(ev);
+        accepted = ev->eventAccepted;
         delete ev;
     } else {
         windowSystemEventQueue.append(ev);
@@ -452,6 +454,7 @@ void QWindowSystemInterfacePrivate::handleWindowSystemEvent(QWindowSystemInterfa
         if (dispatcher)
             dispatcher->wakeUp();
     }
+    return accepted;
 }
 
 void QWindowSystemInterface::registerTouchDevice(QTouchDevice *device)
diff --git a/src/gui/kernel/qwindowsysteminterface_p.h b/src/gui/kernel/qwindowsysteminterface_p.h
index cbc3bad7cda..cc0ca6bf812 100644
--- a/src/gui/kernel/qwindowsysteminterface_p.h
+++ b/src/gui/kernel/qwindowsysteminterface_p.h
@@ -101,7 +101,7 @@ public:
         };
 
         explicit WindowSystemEvent(EventType t)
-            : type(t), flags(0) { }
+            : type(t), flags(0), eventAccepted(true) { }
         virtual ~WindowSystemEvent() { }
 
         bool synthetic() const  { return flags & Synthetic; }
@@ -109,6 +109,7 @@ public:
 
         EventType type;
         int flags;
+        bool eventAccepted;
     };
 
     class CloseEvent : public WindowSystemEvent {
@@ -480,7 +481,7 @@ public:
     static WindowSystemEvent *getNonUserInputWindowSystemEvent();
     static WindowSystemEvent *peekWindowSystemEvent(EventType t);
     static void removeWindowSystemEvent(WindowSystemEvent *event);
-    static void handleWindowSystemEvent(WindowSystemEvent *ev);
+    static bool handleWindowSystemEvent(WindowSystemEvent *ev);
 
     static QElapsedTimer eventTime;
     static bool synchronousWindowSystemEvents;