Values returned from PtInRect and LB_ITEMFROMPOINT are reversed.

controls/listbox.c

diff --git a/controls/listbox.c b/controls/listbox.c
index 44f9e1e..47cd85e 100644
--- a/controls/listbox.c
+++ b/controls/listbox.c
@@ -2257,7 +2257,7 @@
 	    rect.bottom = descr->height;
 
             return MAKELONG( LISTBOX_GetItemFromPoint(wnd, descr, pt.x, pt.y),
-                             PtInRect( &rect, pt ) );
+                             !PtInRect( &rect, pt ) );
         }
 
     case LB_SETCARETINDEX16: