public static async Task ShowPrintUIAsync()
{
// Catch and print out any errors reported.
try
{
await PrintManager.ShowPrintUIAsync();
}
catch (Exception e)
{
ColoringPage.NotifyUserAsync(Tools.GetResourceString("Printer/ErrorMessage:" + e)).ContinueWithoutWaiting();
}
}
/// <summary>
/// This is the event handler for PrintManager.PrintTaskRequested.
/// </summary>
/// <param name="sender">PrintManager</param>
/// <param name="e">PrintTaskRequestedEventArgs</param>
protected virtual void PrintTaskRequested(PrintManager sender, PrintTaskRequestedEventArgs e)
{
PrintTask printTask = null;
printTask = e.Request.CreatePrintTask("C# Printing SDK Sample", sourceRequested =>
{
// Print Task event handler is invoked when the print job is completed.
printTask.Completed += async(s, args) =>
{
// Notify the user when the print operation fails.
if (args.Completion == PrintTaskCompletion.Failed)
{
await ScenarioPage.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
ColoringPage.NotifyUserAsync(Tools.GetResourceString("Printer/ErrorMessage")).ContinueWithoutWaiting();
});
}
};
sourceRequested.SetSource(PrintDocumentSource);
});
}
/// <summary>
/// This is the event handler for PrintManager.PrintTaskRequested.
/// In order to ensure a good user experience, the system requires that the app handle
/// the PrintTaskRequested event within the time specified
/// by PrintTaskRequestedEventArgs->Request->Deadline.
/// Therefore, we use this handler to only create the print task.
/// The print settings customization can be done when the print document source is requested.
/// </summary>
/// <param name="sender">The print manager for which a print task request was made.</param>
/// <param name="e">The print taks request associated arguments.</param>
protected override void PrintTaskRequested(PrintManager sender, PrintTaskRequestedEventArgs e)
{
PrintTask printTask = null;
printTask = e.Request.CreatePrintTask(Tools.GetResourceString("Printer/PrintingTask"), sourceRequestedArgs =>
{
PrintTaskOptionDetails printDetailedOptions = PrintTaskOptionDetails.GetFromPrintTaskOptions(printTask.Options);
// Choose the printer options to be shown.
// The order in which the options are appended determines the order in which they appear in the UI.
printDetailedOptions.DisplayedOptions.Clear();
printDetailedOptions.DisplayedOptions.Add(StandardPrintTaskOptions.MediaSize);
printDetailedOptions.DisplayedOptions.Add(StandardPrintTaskOptions.Copies);
// Create a new list option.
PrintCustomItemListOptionDetails photoSize = printDetailedOptions.CreateItemListOption(
"photoSize", Tools.GetResourceString("Printer/SizeHeading"));
photoSize.AddItem("SizeFullPage", Tools.GetResourceString("Printer/SizeFullPage"));
photoSize.AddItem("Size4x6", Tools.GetResourceString("Printer/Size4x6"));
photoSize.AddItem("Size5x7", Tools.GetResourceString("Printer/Size5x7"));
photoSize.AddItem("Size8x10", Tools.GetResourceString("Printer/Size8x10"));
// Add the custom option to the option list.
printDetailedOptions.DisplayedOptions.Add("photoSize");
PrintCustomItemListOptionDetails scaling = printDetailedOptions.CreateItemListOption(
"scaling", Tools.GetResourceString("Printer/ScalingHeading"));
scaling.AddItem("ShrinkToFit", Tools.GetResourceString("Printer/Shrink"));
scaling.AddItem("Crop", Tools.GetResourceString("Printer/Crop"));
// Add the custom option to the option list.
printDetailedOptions.DisplayedOptions.Add("scaling");
// Set default orientation to landscape.
printTask.Options.Orientation = PrintOrientation.Landscape;
// Register for print task option changed notifications.
printDetailedOptions.OptionChanged += OnPrintDetailedOptionsOptionChanged;
// Register for print task Completed notification.
// Print Task event handler is invoked when the print job is completed.
printTask.Completed += async(s, args) =>
{
await ScenarioPage.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
ClearPageCollection();
// Reset image options to default values.
PhotoScale = Scaling.ShrinkToFit;
PhotoSizeSetting = PhotoSize.SizeFullPage;
// Reset the current page description.
CurrentPageDescription = null;
// Notify the user when the print operation fails.
if (args.Completion == PrintTaskCompletion.Failed)
{
ColoringPage.NotifyUserAsync(Tools.GetResourceString("Printer/ErrorMessage")).ContinueWithoutWaiting();
}
});
};
// Set the document source.
sourceRequestedArgs.SetSource(PrintDocumentSource);
});
}