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BlankPage1.xaml.cs
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BlankPage1.xaml.cs
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using Microsoft.Graphics.Canvas;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices.WindowsRuntime;
using Windows.ApplicationModel.Core;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.Graphics.Printing;
using Windows.UI;
using Windows.UI.Core;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Media.Imaging;
using Windows.UI.Xaml.Navigation;
using Windows.UI.Xaml.Printing;
// The Blank Page item template is documented at https://go.microsoft.com/fwlink/?LinkId=234238
namespace GettingStarted_Ink
{
/// <summary>
/// An empty page that can be used on its own or navigated to within a Frame.
/// </summary>
public sealed partial class BlankPage1 : Page
{
private PrintManager printMan;
private PrintDocument printDoc;
private IPrintDocumentSource printDocSource;
public BlankPage1()
{
this.InitializeComponent();
RectangleToPrint.InkPresenter.InputDeviceTypes =
Windows.UI.Core.CoreInputDeviceTypes.Mouse |
Windows.UI.Core.CoreInputDeviceTypes.Pen;
}
#region Register for printing
protected override void OnNavigatedTo(NavigationEventArgs e)
{
// Register for PrintTaskRequested event
printMan = PrintManager.GetForCurrentView();
printMan.PrintTaskRequested += PrintTaskRequested;
// Build a PrintDocument and register for callbacks
printDoc = new PrintDocument();
printDocSource = printDoc.DocumentSource;
printDoc.Paginate += Paginate;
printDoc.GetPreviewPage += GetPreviewPage;
printDoc.AddPages += AddPages;
}
#endregion
#region Showing the print dialog
private async void PrintButtonClick(object sender, RoutedEventArgs e)
{
if (PrintManager.IsSupported())
{
try
{
// Show print UI
await PrintManager.ShowPrintUIAsync();
}
catch
{
// Printing cannot proceed at this time
ContentDialog noPrintingDialog = new ContentDialog()
{
Title = "Printing error",
Content = "\nSorry, printing can' t proceed at this time.",
PrimaryButtonText = "OK"
};
await noPrintingDialog.ShowAsync();
}
}
else
{
// Printing is not supported on this device
ContentDialog noPrintingDialog = new ContentDialog()
{
Title = "Printing not supported",
Content = "\nSorry, printing is not supported on this device.",
PrimaryButtonText = "OK"
};
await noPrintingDialog.ShowAsync();
}
}
private void PrintTaskRequested(PrintManager sender, PrintTaskRequestedEventArgs args)
{
// Create the PrintTask.
// Defines the title and delegate for PrintTaskSourceRequested
var printTask = args.Request.CreatePrintTask("Print", PrintTaskSourceRequrested);
// Handle PrintTask.Completed to catch failed print jobs
printTask.Completed += PrintTaskCompleted;
}
private void PrintTaskSourceRequrested(PrintTaskSourceRequestedArgs args)
{
// Set the document source.
args.SetSource(printDocSource);
}
#endregion
#region Print preview
private void Paginate(object sender, PaginateEventArgs e)
{
// As I only want to print one Rectangle, so I set the count to 1
printDoc.SetPreviewPageCount(1, PreviewPageCountType.Final);
}
private void GetPreviewPage(object sender, GetPreviewPageEventArgs e)
{
// Provide a UIElement as the print preview.
printDoc.SetPreviewPage(e.PageNumber, this.RectangleToPrint);
}
#endregion
#region Add pages to send to the printer
private void AddPages(object sender, AddPagesEventArgs e)
{
printDoc.AddPage(this.RectangleToPrint);
// Indicate that all of the print pages have been provided
printDoc.AddPagesComplete();
}
#endregion
#region Print task completed
private async void PrintTaskCompleted(PrintTask sender, PrintTaskCompletedEventArgs args)
{
// Notify the user when the print operation fails.
if (args.Completion == PrintTaskCompletion.Failed)
{
await CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, async () =>
{
ContentDialog noPrintingDialog = new ContentDialog()
{
Title = "Printing error",
Content = "\nSorry, failed to print.",
PrimaryButtonText = "OK"
};
await noPrintingDialog.ShowAsync();
});
}
}
#endregion
}
}