1 files changed, 1 insertions, 0 deletions

diff --git a/linden/indra/newview/llfloaterimagepreview.h b/linden/indra/newview/llfloaterimagepreview.h
index 6a4de3d..1ccfeb4 100644
--- a/linden/indra/newview/llfloaterimagepreview.h
+++ b/linden/indra/newview/llfloaterimagepreview.h
@@ -115,6 +115,7 @@ public:
         BOOL handleMouseUp(S32 x, S32 y, MASK mask);
         BOOL handleHover(S32 x, S32 y, MASK mask);
         BOOL handleScrollWheel(S32 x, S32 y, S32 clicks); 
+        BOOL handleHScrollWheel(S32 x, S32 y, S32 clicks);
 
         static void onMouseCaptureLostImagePreview(LLMouseHandler*);
         static void setUploadAmount(S32 amount) { sUploadAmount = amount; }