private void DisposeXpsDocWriter()
{
if (_xpsDocWriter != null)
{
_xpsDocWriter.WritingCompleted -= WritingCompleted;
_xpsDocWriter.WritingProgressChanged -= WritingProgressChanged;
_xpsDocWriter = null;
}
if (_docPaginator != null)
{
_docPaginator.Dispose();
_docPaginator = null;
}
_printedElement = null;
_originalSize = null;
}
public bool Print(Printer printer, int pageCount,
Func <Size, PageOrientation> getOrientation, Func <int, int, Size, Visual> getPage,
Action <WritingProgressChangedEventArgs> progressChanged, Action <WritingCompletedEventArgs> printCompleted)
{
if (printer == null || string.IsNullOrEmpty(printer.Name))
{
return(false);
}
using (var printQueue = GetPrinter(printer.Name))
{
if (printQueue == null)
{
return(false);
}
var printTicket = GetPrintTicket(printQueue, printer.Ticket);
/*The first way
* var printDialog = new PrintDialog();
* printDialog.PrintQueue = printer;
* printDialog.PrintTicket = printTicket;
*/
//The second way
printQueue.UserPrintTicket = printTicket;
//Page Size 1 inch = 96 pixels
Size originalPageSize;
try
{
var pageImageableArea = printQueue.GetPrintCapabilities(printTicket).PageImageableArea;
originalPageSize = new Size(pageImageableArea.ExtentWidth, pageImageableArea.ExtentHeight);
}
catch
{
originalPageSize = new Size(printTicket.PageMediaSize.Width.Value, printTicket.PageMediaSize.Height.Value);
}
//Page Orientation
if (getOrientation != null)
{
if (getOrientation(originalPageSize) == PageOrientation.Landscape)
{
//exchange width and height
originalPageSize = new Size(originalPageSize.Height, originalPageSize.Width);
printTicket.PageOrientation = System.Printing.PageOrientation.Landscape;
}
else
{
printTicket.PageOrientation = System.Printing.PageOrientation.Portrait;
}
}
else
{
if (printTicket.PageOrientation == System.Printing.PageOrientation.Landscape)
{
originalPageSize = new Size(originalPageSize.Height, originalPageSize.Width);
}
}
try
{
//The first way
//printDialog.PrintDocument(new LabelDocPaginator(pageCount, originalPageSize, getSpecifiedPage), "Print Label");
//The second way
DisposeXpsDocWriter();
_printCompleted = printCompleted;
_progressChanged = progressChanged;
_xpsDocWriter = PrintQueue.CreateXpsDocumentWriter(printQueue);
_xpsDocWriter.WritingCompleted += WritingCompleted;
_xpsDocWriter.WritingProgressChanged += WritingProgressChanged;
_docPaginator = new PrintDocPaginator(pageCount, originalPageSize, getPage);
_xpsDocWriter.WriteAsync(_docPaginator);
}
catch (Exception ex)
{
DisposeXpsDocWriter();
_printCompleted = null;
_progressChanged = null;
return(false);
}
}
return(true);
}
