private void ThisAddIn_Startup(object sender, EventArgs e)
{
// create wait form
this.waitForm = new WaitForm(Application);
mainThreadId = Thread.CurrentThread.ManagedThreadId;
//Globals.Ribbons.PpsMenu.
} // ctor
public ProgressBar(WaitForm form)
{
this.form = form;
form.AddToStack(this);
} // ctor