1 files changed, 2 insertions, 0 deletions

diff --git a/c++-qt/gats-qt/null.h b/c++-qt/gats-qt/null.h
index 974ae09..7bf309a 100644
--- a/c++-qt/gats-qt/null.h
+++ b/c++-qt/gats-qt/null.h
@@ -27,6 +27,8 @@ namespace Gats
 
         virtual void write( QIODevice &rOut ) const;
         virtual void read( QIODevice &rIn, char cType );
+        
+        virtual QString toString( int iIndent=0 ) const;
     };
 };