GUIBaseContext :: doAfterEnter - Post-event handler after control gets focus
The handler will be called, when control gets focus (GEV_FocusIn event). You may overload the handler in order to setup the current appearance of the control. In contrast to GEV_Enter, the event is handled bottom-up and terminates as soon as one handler is returning 1.
When suppressing focus-in events for parent controls, no GEV_Validate is fired for parent controls, i.e. doValidateControl() handler will not be called for parents.