--- a/src/graphics.h.in	Tue Jun 22 12:39:56 2010 -0700
+++ b/src/graphics.h.in	Wed Jun 23 11:23:32 2010 +0200
@@ -2223,6 +2223,17 @@
 
   virtual void remove_all_listeners (void);
 
+  virtual void reset_default_properties (void)
+    {
+      if (valid_object ())
+        {
+          std::string msg = (type () + "::reset_default_properties");
+          gripe_not_implemented (msg.c_str ());
+        }
+      else
+        error ("base_graphics_object::default: invalid graphics object");
+    }
+
 protected:
   // A reference count.
   int count;
@@ -2409,6 +2420,9 @@
                                  listener_mode mode = POSTSET)
     { rep->delete_property_listener (nm, v, mode); }
 
+  void reset_default_properties (void)
+  { rep->reset_default_properties (); }
+
 private:
   base_graphics_object *rep;
 };
@@ -2548,6 +2562,8 @@
 
   bool valid_object (void) const { return true; }
 
+  void reset_default_properties (void);
+
 private:
   property_list default_properties;
 
@@ -2752,6 +2768,8 @@
 
   bool valid_object (void) const { return true; }
 
+  void reset_default_properties (void);
+
 private:
   property_list default_properties;
 };
@@ -3199,6 +3217,8 @@
 
   bool valid_object (void) const { return true; }
 
+  void reset_default_properties (void);
+
 private:
   property_list default_properties;
 };