I still havent bought Inside Macintosh (by the way, if any one knows a place on the net where to buy it, Id be glad to know it) and I am wondering how to use FN GETNEWCWINDOW According to the Hanbook, it should be used this way : wnd1Ptr&= FN GETNEWCWINDOW(resID%,wStPtr&,wnd2Ptr&). But what does wStPtr& and wnd2Ptr& represent ? Pierre