--- a/uiaccelerator_plat/alf_core_toolkit_api/inc/uiacceltk/HuiCanvasVisual.h	Tue May 25 13:39:57 2010 +0300
+++ b/uiaccelerator_plat/alf_core_toolkit_api/inc/uiacceltk/HuiCanvasVisual.h	Wed Jun 09 10:41:25 2010 +0300
@@ -449,8 +449,8 @@
     static TBool RecursiveIsExternalContentDrawingEnabled(CHuiVisual* aVisual);
     static TBool RecursiveHasCommandBuffers(CHuiVisual* aVisual);
     
-    void CollectPaintedRegion(TRegion& aRecursivePaintRegion, TInt aExcludeCanvasFlags) const;
-    void CollectRecursivePaintedRegion(TRegion& aRecursivePaintRegion, TInt aExcludeCanvasFlags) const;
+    TBool CollectPaintedRegion(TRegion& aRecursivePaintRegion, TInt aExcludeCanvasFlags) const;
+    TBool CollectRecursivePaintedRegion(TRegion& aRecursivePaintRegion, TInt aExcludeCanvasFlags) const;
     
     TBool CanSkipDrawing() const;
     TBool KeepNoCache() const;