protected virtual void Shutdown()
{
if (mInput != null)
{
mInput.Shutdown();
mInput = null;
}
if (this.mTrayMgr != null)
{
this.mTrayMgr.destroyAllWidgets();
//this.mTrayMgr.clearAllTrays();
this.mTrayMgr = null;
}
if (mRoot != null)
{
mRoot.Shutdown();
}
mRoot = null;
}