>Hi Naomi,
>
>I've fixed the commctrl.h file but I still encounter the same problem
>variable 'LVM_SETBKCOLOR' is not found
>
>Here is my code that I placed in the Init Event of my form
>

>#INCLUDE windows.h
>#INCLUDE C:\commctrl.h
>
>* Use SendMessage to tell apps we've changed the system time.
>DECLARE INTEGER SendMessage IN win32api;
>		INTEGER WindowHandle,;
>		INTEGER MESSAGE,;
>		STRING Param1,;
>		STRING Param2,;
>		
>* SendMessage constants.
>#DEFINE hwnd_listview thisform.olelistView.hWnd
>#DEFINE wparam1 0
>#DEFINE wparam2 8923479
>#DEFINE wparam3 4097 && LVM_SETBKCOLOR
>
>lret = SendMessage(hwnd_listview,wparam3,wparam1,wparam2)

I made one small correction inside. I don't think you need to include header files, since you're not using them.