1 files changed, 19 insertions, 0 deletions
diff --git a/src/gui/kernel/qevent.h b/src/gui/kernel/qevent.h
index 6fca54e2b6..0b6d96a590 100644
--- a/src/gui/kernel/qevent.h
+++ b/src/gui/kernel/qevent.h
@@ -162,6 +162,8 @@ protected:
 class Q_GUI_EXPORT QWheelEvent : public QInputEvent
 {
 public:
+    enum { DefaultDeltasPerStep = 120 };
+
     QWheelEvent(const QPointF &pos, int delta,
                 Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers,
                 Qt::Orientation orient = Qt::Vertical);
@@ -408,6 +410,23 @@ protected:
     QRegion rgn;
 };
 
+class Q_GUI_EXPORT QPlatformSurfaceEvent : public QEvent
+{
+public:
+    enum SurfaceEventType {
+        SurfaceCreated,
+        SurfaceAboutToBeDestroyed
+    };
+
+    explicit QPlatformSurfaceEvent(SurfaceEventType surfaceEventType);
+    ~QPlatformSurfaceEvent();
+
+    inline SurfaceEventType surfaceEventType() const { return m_surfaceEventType; }
+
+protected:
+    SurfaceEventType m_surfaceEventType;
+};
+
 class Q_GUI_EXPORT QResizeEvent : public QEvent
 {
 public: