Some more messages.

diff --git a/include/treeview.h b/include/treeview.h
index 8e006a9..fb52547 100644
--- a/include/treeview.h
+++ b/include/treeview.h
@@ -53,6 +53,7 @@
   HTREEITEM     uMaxHandle;     /* needed for delete_item */
   HTREEITEM     TopRootItem;    /* handle to first item in treeview */
   INT           cdmode;         /* last custom draw setting */
+  UINT          uScrollTime;	/* max. time for scrolling in milliseconds*/
   UINT          uItemHeight;    /* item height, -1 for default item height */
   UINT          uRealItemHeight;/* current item height in pixels */
   UINT          uVisibleHeight; /* visible height of treeview in pixels */