Only print first frame of TIFF image when print to XPS printer and memory leak when print to CutePDF

Question

Hi all,

I'm developing the ImageViewer by using WPF as follow:

• I have a TIFF (multiple pages) binary in database and decoded by TiffBitmapDecoder with Cache option = Default. After decoding I get a list of Frames (pages)

• Each frame (represent one page of the Tiff file) is used to construct an ImageBrush to set to background of a canvas called ItemCanvas. The ItemCanvas represent for a page and support to add annotation, rotation,... (like XPS Viewer with added features)

• I have a container canvas to contains all ItemCanvas.

Result: everything works fine on screen

The problem I'm facing is the print function:

• Print to XPS printer (default shipped by Windows): all pages are printed very fast with other contents (annotaions) but the background of each page always get the first frame of TIFF image.

• Print to CutePDF: all pages are printed ok with the correct background and annotations. But (I always hate "BUT") I only print less than 40 pages, otherwise I will got the memory leak "Insufficient memory to..."

Here's the code:

PrintDialog printDialog = new PrintDialog();
printDialog.UserPageRangeEnabled = true;
printDialog.PageRangeSelection = PageRangeSelection.UserPages;
printDialog.MinPage = 1;
printDialog.MaxPage = Convert.ToUInt32(_items.Count);
printDialog.PageRange = new PageRange(1, _items.Count);

if (printDialog.ShowDialog() == true)
{
 FixedDocument document = new FixedDocument();

 int from = 0; int to = _items.Count - 1;

 if (printDialog.PageRangeSelection == PageRangeSelection.UserPages)
 {
  from = printDialog.PageRange.PageFrom - 1;
  to = printDialog.PageRange.PageTo - 1;
 }

 for (int i = from; i <= to; i++)
 {
  ItemCanvas item = _items[i];
  FixedPage page = new FixedPage();

  PrintTicket printTicket = new PrintTicket();

  if (item.Width > item.Height)
  {
   printTicket.PageOrientation = PageOrientation.Landscape;
  }
  else
  {
   printTicket.PageOrientation = PageOrientation.Portrait;
  }

  page.PrintTicket = printDialog.PrintQueue.MergeAndValidatePrintTicket(printDialog.PrintTicket, printTicket).ValidatedPrintTicket;

  ItemCanvas clonedItem = CreateItemCanvas(item.Image, item.PageInfo);
  clonedItem.InitializeContent();
  page.Children.Add(clonedItem);
  page.Width = clonedItem.Width;
  page.Height = clonedItem.Height;

  PageContent pageContent = new PageContent();
  ((System.Windows.Markup.IAddChild)pageContent).AddChild(page);
  document.Pages.Add(pageContent);
 }

 printDialog.PrintDocument(document.DocumentPaginator, PrintJobName);
}

the _items is a ItemCanvas collection that refer to canvases are displayed on screen.

One more, my image viewer also have email feature which I convert ItemCanvas to bitmap and save into tiff file for attachment in email. I also got the same issue when print to CutePDF (memory leak)

Thanks so much!

Thanh