win.h

winfont.c
winmultiwindowshape.c
winmultiwindowwindow.c
winpfbdd.c
winshaddd.c
winshadddnl.c
winshadgdi.c
Fix incorrect wrapping of functions. Ensure the pointers from pScreen point
    to the called function even if wrapped functions changed it
Set the window properties to NULL to avoid referencing freed memory because
    of timing problems after deleting a window
Do not wrap ChangeWindowAttributes. All functions are noops currently

hw/xwin/winshadgdi.c

@@ -630,7 +630,7 @@ winCloseScreenShadowGDI (int nIndex, ScreenPtr pScreen)
   pScreenPriv->fActive = FALSE;
 
   /* Call the wrapped CloseScreen procedure */
-  pScreen->CloseScreen = pScreenPriv->CloseScreen;
+  WIN_UNWRAP(CloseScreen);
   fReturn = (*pScreen->CloseScreen) (nIndex, pScreen);
 
   /* Delete the window property */