public void AddSiblingGroupPopupCallback(object obj)
{
AudioMixerGroupPopupContext context = (AudioMixerGroupPopupContext) obj;
if ((context.groups != null) && (context.groups.Length > 0))
{
AudioMixerTreeViewNode node = this.m_AudioGroupTree.FindItem(context.groups[0].GetInstanceID()) as AudioMixerTreeViewNode;
if (node != null)
{
AudioMixerTreeViewNode parent = node.parent as AudioMixerTreeViewNode;
this.AddAudioMixerGroup(parent.group);
}
}
}