diff --git a/rfb/TransferQueue.h b/rfb/TransferQueue.h
index b12c058..02a043d 100644
--- a/rfb/TransferQueue.h
+++ b/rfb/TransferQueue.h
@@ -64,6 +64,8 @@
     bool setSizeAt(unsigned int number, unsigned int value);
     bool setDataAt(unsigned int number, unsigned int value);
     bool setFlagsAt(unsigned int number, unsigned int value);
+    bool clearFlagAt(unsigned int number, unsigned int value);
+    bool setFlagToAll(unsigned int flag);
     
     bool deleteAt(unsigned int number);