private static async Task <UIPrintInteractionController> PopulateCommonPrinterDetailsAsync(
PrintJobConfiguration printJobConfiguration)
{
UIPrintInteractionController printer = UIPrintInteractionController.SharedPrintController;
if (printer is null)
{
await PrintStatusReporting.ReportErrorAsync(
CrossPrinting.PrintingMessages.UnableToPrintAtThisTime);
}
else
{
printer.PrintInfo = UIPrintInfo.PrintInfo;
if (!(printer.PrintInfo is null))
{
if (!(printJobConfiguration is null))
{
switch (printJobConfiguration.DuplexPreference)
{
case PrintJobDuplexConfiguration.LongEdge:
printer.PrintInfo.Duplex = UIPrintInfoDuplex.LongEdge;
break;
case PrintJobDuplexConfiguration.ShortEdge:
printer.PrintInfo.Duplex = UIPrintInfoDuplex.ShortEdge;
break;
case PrintJobDuplexConfiguration.None:
default:
printer.PrintInfo.Duplex = UIPrintInfoDuplex.None;
break;
}
printer.PrintInfo.JobName = printJobConfiguration.JobName;
printer.PrintInfo.Orientation
= printJobConfiguration.PreferPortraitOrientation
? UIPrintInfoOrientation.Portrait
: UIPrintInfoOrientation.Landscape;
printer.PrintInfo.OutputType
= printJobConfiguration.PreferColor
? UIPrintInfoOutputType.General
: UIPrintInfoOutputType.Grayscale;
}
}
printer.ShowsPageRange = true;
}
return(printer);
}
/// <summary>
///
/// </summary>
/// <returns>true if no immediate errors detected, false if an immediate error detected. Note that a true return value does not mean that printing completed successfully, just that it didn't fail immediately</returns>
protected async Task <bool> RegisterForPrintingAsync()
{
try
{
_printDocument = new Windows.UI.Xaml.Printing.PrintDocument();
_printDocumentSource = _printDocument.DocumentSource;
_printDocument.Paginate += CreatePrintPreviewPages;
_printDocument.GetPreviewPage += GetPrintPreviewPage;
_printDocument.AddPages += AddPrintPages;
#if DEBUG
IncrementAddPagesCount();
IncrementGetPreviewPageCount();
IncrementPaginateCount();
#endif
_printManager = Windows.Graphics.Printing.PrintManager.GetForCurrentView();
if (!(_printManager is null))
{
PrintManagerHelper.Instance.SetPrintTaskRequestedHandler(
_printManager,
PrintTaskRequested);
return(true);
}
}
#pragma warning disable CA1031 // Do not catch general exception types
catch (Exception ex)
{
await PrintStatusReporting.ReportExceptionAsync(ex);
}
#pragma warning restore CA1031 // Do not catch general exception types
if (!(_printDocument is null))
{
_printDocument.Paginate -= CreatePrintPreviewPages;
_printDocument.GetPreviewPage -= GetPrintPreviewPage;
_printDocument.AddPages -= AddPrintPages;
}
#if DEBUG
DecrementPaginateCount();
DecrementGetPreviewPageCount();
DecrementAddPagesCount();
#endif
await PrintStatusReporting.ReportErrorAsync(
CrossPrinting.PrintingMessages.FailedToRegisterForPrinting);
return(false);
}
