diff --git a/win/rfb_win32/ScaledDIBSectionBuffer.h b/win/rfb_win32/ScaledDIBSectionBuffer.h
index 3cc267b..7ec0b1f 100644
--- a/win/rfb_win32/ScaledDIBSectionBuffer.h
+++ b/win/rfb_win32/ScaledDIBSectionBuffer.h
@@ -43,6 +43,7 @@
 
       int width()  const { return scaled_width; }
       int height() const { return scaled_height; }
+      int area() const { return scaled_width * scaled_height; }
       bool isScaling() const { return scaling; }
 
       virtual void setPF(const PixelFormat &pf);