1 files changed, 3 insertions, 1 deletions
diff --git a/examples/widgets/mainwindows/mdi/mainwindow.h b/examples/widgets/mainwindows/mdi/mainwindow.h
index c2d50728b8..ef86c68602 100644
--- a/examples/widgets/mainwindows/mdi/mainwindow.h
+++ b/examples/widgets/mainwindows/mdi/mainwindow.h
@@ -59,8 +59,10 @@ class MainWindow : public QMainWindow
 public:
     MainWindow();
 
+    bool openFile(const QString &fileName);
+
 protected:
-    void closeEvent(QCloseEvent *event);
+    void closeEvent(QCloseEvent *event) Q_DECL_OVERRIDE;
 
 private slots:
     void newFile();