diff --git a/rfb_win32/ScaledDIBSectionBuffer.h b/rfb_win32/ScaledDIBSectionBuffer.h
index c256e8f..c0dd586 100644
--- a/rfb_win32/ScaledDIBSectionBuffer.h
+++ b/rfb_win32/ScaledDIBSectionBuffer.h
@@ -43,6 +43,7 @@
 
       int width()  const { return scaled_width; }
       int height() const { return scaled_height; }
+      bool isScaling() const { return scaling; }
 
       virtual void setSrcPixelBuffer(U8 **src_data, int w, int h, PixelFormat pf=PixelFormat());
       virtual void setPF(const PixelFormat &pf);
@@ -53,6 +54,8 @@
       virtual void recreateBuffer() {
         recreateScaledBuffer();
       };
+
+      bool scaling;
     };
 
   };