private static void AddDocumentContent(IXpsFixedDocumentWriter fixedDocumentWriter,
XmlNodeList selectedThumbnails)
{
Console.WriteLine("Using PackWebRequest and PackWebResponse APIs to retrieve selected photos ...");
Console.WriteLine("------------------------------------------------------------------------------");
foreach (XmlNode node in selectedThumbnails)
{
Uri packageUri;
Uri partUri;
string selectedId = node.Attributes["Id"].InnerText;
try
{
GetSelectedPhotoUri(selectedId, out packageUri, out partUri);
}
catch (Exception e)
{
// We catch all exceptions because we don't want any
// exception caused by invalid input crash our server.
// But we record all exceptions, and try to continue.
Console.WriteLine("Hit exception while resolving photo Uri "
+ "for selected thumbnail ID " + selectedId);
Console.WriteLine("Exception:");
Console.WriteLine(e.ToString());
continue;
}
// Using PackWebRequest to retrieve the photo.
using (WebResponse response =
PackWebRequestForPhotoPart(packageUri, partUri))
{
Stream s = response.GetResponseStream();
// Add a fixed page into the fixed document.
IXpsFixedPageWriter fixedPageWriter =
fixedDocumentWriter.AddFixedPage();
// Add the photo image resource to the page.
XpsImage xpsImage =
fixedPageWriter.AddImage(response.ContentType);
SharedLibrary.CopyStream(s, xpsImage.GetStream());
xpsImage.Commit();
s.Seek(0, SeekOrigin.Begin);
// Use BitmapFrame to get the dimension of the photo image.
BitmapFrame imgFrame = BitmapFrame.Create(s);
// Write the XML description of the fixed page.
WritePageContent(fixedPageWriter.XmlWriter, xpsImage.Uri,
imgFrame);
fixedPageWriter.Commit();
}
}
Console.WriteLine("------------------------------------------------------------------------------");
Console.WriteLine("All selected photos retrieved.");
}
