diff --git a/MatterControlLib/DesignTools/Interfaces/Object3DUiWindowManager.cs b/MatterControlLib/DesignTools/Interfaces/Object3DUiWindowManager.cs
index a386df9a4..ee51b60af 100644
--- a/MatterControlLib/DesignTools/Interfaces/Object3DUiWindowManager.cs
+++ b/MatterControlLib/DesignTools/Interfaces/Object3DUiWindowManager.cs
@@ -46,7 +46,7 @@ namespace MatterHackers.MatterControl.DesignTools
         {
         }
 
-        public void CreateWidgetIfRequired(IObject3D item, Object3DControlsLayer controlLayer, string title)
+        public bool CreateWidgetIfRequired(IObject3D item, Object3DControlsLayer controlLayer, string title)
         {
             if (WindowWidget == null
                 || WindowWidget.Parents<SystemWindow>().Count() == 0)
@@ -68,7 +68,11 @@ namespace MatterHackers.MatterControl.DesignTools
 
                 controlLayer.GuiSurface.AddChild(WindowWidget);
                 controlLayer.GuiSurface.AfterDraw += GuiSurface_AfterDraw;
+
+                return true;
             }
+
+            return false;
         }
 
         private void GuiSurface_AfterDraw(object sender, DrawEventArgs e)
diff --git a/Submodules/agg-sharp b/Submodules/agg-sharp
index 56c48da39..0c10c4ad5 160000
--- a/Submodules/agg-sharp
+++ b/Submodules/agg-sharp
@@ -1 +1 @@
-Subproject commit 56c48da395b850d67732e984d14c3666f78228ff
+Subproject commit 0c10c4ad5d84538d71022c0342fe9cfba263da20