called when the drag object changes drag position

drag,pos: Efl.Dnd.Drag_Pos;

EFL_UI_DND_EVENT_DRAG_POS(Efl_Dnd_Drag_Pos)

static void
on_efl_ui_dnd_event_drag_pos(void *data, const Efl_Event *event)
{
    Efl_Dnd_Drag_Pos 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_DND_EVENT_DRAG_POS, on_efl_ui_dnd_event_drag_pos, d);
}