diff --git a/interface/wx/event.h b/interface/wx/event.h
index f2c575e1ab..472c265eb7 100644
--- a/interface/wx/event.h
+++ b/interface/wx/event.h
@@ -1428,6 +1428,12 @@ public:
     parent window receives @c wxEVT_LEAVE_WINDOW event not only when the
     mouse leaves the window entirely but also when it enters one of its children.
 
+    The position associated with a mouse event is expressed in the window
+    coordinates of the window which generated the event, you can use
+    wxWindow::ClientToScreen() to convert it to screen coordinates and possibly
+    call wxWindow::ScreenToClient() next to convert it to window coordinates of
+    another window.
+
     @note Note that under Windows CE mouse enter and leave events are not natively
           supported by the system but are generated by wxWidgets itself. This has several
           drawbacks: the LEAVE_WINDOW event might be received some time after the mouse