property grid message hoooking

Property grid is a nice component but the events are really poor.

To workaround the lack of events i have write a simple hooking code, it works fine and give me a full control on a lot of windows message fired from propertygrid.  But.....if you rotate the wheel of your mouse the propertygrid does not show any message!!!! So my hook procedure is workless for mousewheel......

I think this is because i have addressed hooking on the property grid .hwnd, but when the focus is on a item object this object must be addressed to hooking.

Propertygrid doesn't give us .hwnd property of the items object so i cannot hook it.

I really need to control mousewheel, can you give me some help ?

thanks a lot