Notifies Efl.Io.Buffer.position_write changed

position_write,changed;

EFL_IO_BUFFER_EVENT_POSITION_WRITE_CHANGED(void)

static void
on_efl_io_buffer_event_position_write_changed(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_IO_BUFFER_EVENT_POSITION_WRITE_CHANGED, on_efl_io_buffer_event_position_write_changed, d);
}