private void btnSavePages_Click(object sender, RoutedEventArgs e)
{
btnConvert.IsEnabled = false;
if (_savingPages)
{
btnSavePages.Content = "Canceling";
_writer.Cancel();
return;
}
_savingPages = true;
btnSavePages.Content = "Cancel";
Config.BitmapConverter.Rotate = 0;
DummyDocumentConverter converter = new DummyDocumentConverter(Config.Document, Enumerable.Range(1, Config.Document.PageCount));
_convert(converter);
}