- // for some composite controls (like a combobox), wndThis might be NULL
- // because the subcontrol is not a wxWindow, but only the control itself
- // is - try to catch this case
- while ( hWnd && !wndThis )
+#if wxUSE_TOOLTIPS
+ // we must relay WM_MOUSEMOVE events to the tooltip ctrl if we want it to
+ // popup the tooltip bubbles
+ if ( wndThis && (msg->message == WM_MOUSEMOVE) )