TV_ITEM is the old name of TVITEM, shouldn't be used any more.

include/commctrl.h

diff --git a/include/commctrl.h b/include/commctrl.h
index 7a63708..c157aac 100644
--- a/include/commctrl.h
+++ b/include/commctrl.h
@@ -2780,7 +2780,7 @@
   _TVi.hItem = hti; \
   _TVi.stateMask = _mask; \
   _TVi.state = data; \
-  SNDMSG((hwndTV), TVM_SETITEM, 0, (LPARAM)(TV_ITEM *)&_TVi); \
+  SNDMSG((hwndTV), TVM_SETITEM, 0, (LPARAM)&_TVi); \
 }
 
 #define TreeView_GetItemState(hwndTV, hti, mask) \