Called when window is set as sticky

Since 1.22

stick @beta;

EFL_UI_WIN_EVENT_STICK(void, @beta)

static void
on_efl_ui_win_event_stick(void *data, const Efl_Event *event)
{
    void info = event->info;
    Eo *obj = event->object;
    Data *d = data;
 
    /* event hander code */
}
 
static void
setup_event_handler(Eo *obj, Data *d)
{
    efl_event_callback_add(obj, EFL_UI_WIN_EVENT_STICK, on_efl_ui_win_event_stick, d);
}