Merged main Wine changes into Corel's treeview control rewritten by
Serge Ivanov and Andrew Lewycky.  Fixed item focus behavior to match
Windows.  Fixed item selection when un/expanding items.  Implemented
WM_SETREDRAW.  Added Corel's COMCTL32_CreateToolTip() helper function
to commctrl.c.

diff --git a/dlls/comctl32/comctl32.h b/dlls/comctl32/comctl32.h
index 93bdb0b..9cb48e0 100644
--- a/dlls/comctl32/comctl32.h
+++ b/dlls/comctl32/comctl32.h
@@ -7,6 +7,9 @@
  *
  */
 
+#ifndef __WINE_COMCTL32_H
+#define __WINE_COMCTL32_H
+
 extern HMODULE COMCTL32_hModule;
 
 /* Property sheet / Wizard */
@@ -62,3 +65,7 @@
 
 #define IDT_CHECK        401
 
+/* Internal function */
+HWND COMCTL32_CreateToolTip (HWND);
+
+#endif  /* __WINE_COMCTL32_H */