diff --git a/common/rfb/CMsgHandler.h b/common/rfb/CMsgHandler.h
index 2686712..993276e 100644
--- a/common/rfb/CMsgHandler.h
+++ b/common/rfb/CMsgHandler.h
@@ -57,6 +57,9 @@
     virtual void endOfContinuousUpdates();
     virtual void serverInit() = 0;
 
+    virtual void readAndDecodeRect(const Rect& r, int encoding,
+                                   ModifiablePixelBuffer* pb) = 0;
+
     virtual void framebufferUpdateStart();
     virtual void framebufferUpdateEnd();
     virtual void dataRect(const Rect& r, int encoding) = 0;