public bool OnShowMockupDialog(object parameter)
        {
            CheckDisposed();

            Command command = (Command)parameter;
            string  path    = command.GetParameter("path", "");

            path = m_mediator.GetRealPath(path);
            if (!System.IO.File.Exists(path))
            {
                throw new RuntimeConfigurationException("Could not find this file: " + path);
            }

            using (ImageDialog dialog = new ImageDialog(path, command.GetParameter("caption", "Mockup")))
            {
                dialog.ShowDialog();
            }
            return(true);
        }
        public bool OnShowMockupDialog(object parameter)
        {
            CheckDisposed();

            Command command = (Command) parameter;
            string path = command.GetParameter("path","");
            path = m_mediator.GetRealPath(path);
            if(!System.IO.File.Exists(path))
                throw new RuntimeConfigurationException("Could not find this file: "+path);

            using (ImageDialog dialog = new ImageDialog(path, command.  GetParameter("caption", "Mockup")))
            {
                dialog.ShowDialog();
            }
            return true;
        }