public HtmlThumbNailer(NavigationIsolator isolator)
{
if (_theOnlyOneAllowed != null)
{
Debug.Fail("Something tried to make a second HtmlThumbnailer; there should only be one.");
throw new ApplicationException("Something tried to make a second HtmlThumbnailer; there should only be one.");
}
_theOnlyOneAllowed = this;
_isolator = isolator;
_syncControl = new Control();
_syncControl.CreateControl();
}