[DllImport ("gstreamersharpglue-0.10") ]
private extern static uint gstsharp_gst_bin_get_children_offset();

static uint children_offset = gstsharp_gst_bin_get_children_offset();

public Element [] Children {
  get {
    GLib.List list;

    unsafe {
      IntPtr* raw_ptr = (IntPtr*) ( ( (byte*) Handle) + children_offset);
      list = new GLib.List ( (*raw_ptr));
    }

    Element [] result = new Element[list.Count];

    for (int i = list.Count - 1; i >= 0; i--) {
      result[i] = list[i] as Element;
    }

    return result;
  }
}

[DllImport ("gstreamer-0.10.dll") ]
static extern bool gst_bin_add (IntPtr raw, IntPtr element);

public bool Add (Gst.Element element) {
  bool raw_ret = gst_bin_add (Handle, element == null ? IntPtr.Zero : element.Handle);
  if (raw_ret) {
    // Incrmenting the refcount of the element.
    Gst.Object.Ref (element.Handle);
  }
  bool ret = raw_ret;
  return ret;
}

public bool AddMany (params Element[] elements) {
  if (elements == null) {
    return false;
  }

  foreach (Element element in elements) {
    if (element == null || !Add (element)) {
      return false;
    }
  }

  return true;
}

public bool RemoveMany (params Element[] elements) {
  if (elements == null) {
    return false;
  }

  foreach (Element element in elements) {
    if (element == null || !Remove (element)) {
      return false;
    }
  }

  return true;
}