Loading RTF file with images to FlowDocument in console application

// Create OpenFileDialog 
Microsoft.Win32.OpenFileDialog dlg = new Microsoft.Win32.OpenFileDialog();// Set filter for file extension and default file extension 
dlg.DefaultExt = ".rtf";
dlg.Filter = "RichText Files (*.rtf)|*.rtf";// Display OpenFileDialog by calling ShowDialog method 
Nullable<bool> result = dlg.ShowDialog();if (result == true)
{// Open document string filename = dlg.FileName;
    FlowDocument flowDocument = new FlowDocument();
    TextRange textRange = new TextRange(flowDocument.ContentStart, flowDocument.ContentEnd);using (FileStream fileStream = File.Open(filename, FileMode.Open, FileAccess.Read, FileShare.Read))
    {
        textRange.Load(fileStream, DataFormats.Rtf);
    }

}