1 files changed, 3 insertions, 0 deletions
diff --git a/gr-qtgui/lib/displayform.h b/gr-qtgui/lib/displayform.h
index 0d105bd83d..31dc757bb6 100644
--- a/gr-qtgui/lib/displayform.h
+++ b/gr-qtgui/lib/displayform.h
@@ -43,6 +43,7 @@ class DisplayForm : public QWidget
 
   virtual DisplayPlot* getPlot() = 0;
   void Reset();
+  bool isClosed() const;
 
   void enableMenu(bool en=true);
 
@@ -91,6 +92,8 @@ signals:
   void plotPointSelected(const QPointF p, int type);
 
 protected:
+  bool _isclosed;
+
   int _nplots;
 
   QGridLayout *_layout;