c# itextsharp create barcode Make sure you save Extras.xml, but otherwise you are ready to move on to the next step. in Word

Drawing QR Code in Word Make sure you save Extras.xml, but otherwise you are ready to move on to the next step.

Make sure you save Extras.xml, but otherwise you are ready to move on to the next step.
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Adding Code to Navigate to a Photo
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To properly retrieve the photo that the user selected through the Extras feature, the application must override the OnNavigatedTo event in MainPage.xaml.cs. The steps here show you how to do that: 1. Open MainPage.xaml.cs and add the following using statement to the top of the page:
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using System.Windows.Navigation; 2. The reference to the Microsoft.Xna.Framework assembly should still be in the project from the prior walkthroughs; however, if you start a new project that implements the Extras functionality, make sure to add a reference to that assembly and the following using statement to properly refer to the Media Library. You will also need System.Windows.Medi.Imaging to work with the image source.
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using Microsoft.Xna.Framework.Media; using System.Windows.Media.Imaging; 3. Paste the following OnNavigatedTo method. Note how the basic operation is that of reading a QueryString passed in, determining if we have a value for the parameter token, and then trying to retrieve the photo from the Media Library by that token ID. protected override void OnNavigatedTo(NavigationEventArgs e) { try {
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CHAPTER 16 WORKING WITH THE CAMERA AND PHOTOS
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IDictionary<string, string> queryStrings = this.NavigationContext.QueryString; if (queryStrings.ContainsKey("token")) { MediaLibrary library = new MediaLibrary(); Picture picture = library.GetPictureFromToken(queryStrings["token"]); BitmapImage bitmap = new BitmapImage(); bitmap.SetSource(picture.GetImage()); WriteableBitmap picLibraryImage = new WriteableBitmap(bitmap); imgPhoto.Source = picLibraryImage; } } catch (Exception ex) { Dispatcher.BeginInvoke(() => txtStatus.Text = ex.Message); } } 4. Deploy the application to the phone. Then, from the phone s Start screen, select the Pictures hub, pick any picture collection, and select an individual picture of your choice. Click the ellipsis at the bottom of the screen, and select Extras. You should see the PhotoCapture application listed on the next screen that comes up. Clicking the PhotoCapture application should start the application and load the selected photo into the Image control exactly the expected behavior.
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In the next section, you will walk through the steps needed to extend the Share dialog for the photos. The concepts you use to extend the Extras and Share features are very similar; the differences, as you will see shortly, are in the details of the file name and the query string key.
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In this walkthrough, you will make more changes to the PhotoCapture application to take advantage of the Share extensibility feature within the Photos application. For simplicity, the PhotoCapture application will load the selected image onto its main screen. In the next section, you will complete the circle and write code to send the image to the TwitPic cloud service for easy reference from the Twitter messages. As with your implementation of Extras, to extend the Share option to include it, an application needs the following: 1. An E0F0E49A-3EB1-4970-B780-45DA41EC7C28.xml file in its root directory enabling the application s integration with the Share feature (this is not a typo the XML file must be named exactly like that for the application to belong to the Share feature) Code to properly read and/or share the photo selected in the Share dialog
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You will implement both steps in the next section.
CHAPTER 16 WORKING WITH THE CAMERA AND PHOTOS
Adding an E0F0E49A-3EB1-4970-B780-45DA41EC7C28.xml File to the Project
Adding this strangely named XML file is very straightforward; the only potential difficulty may be the fact that the name is completely unreadable, so it would be best if you could copy and paste it from the source code available for download with this book. 1. Right-click the project name, select Add New Item, and then select XML file. Make sure (this is important!) you name it E0F0E49A-3EB1-4970-B78045DA41EC7C28.xml. While the contents of the file may not be very important, be sure to go to the Properties window and set the Build Action property to Content and the Copy To Output property to Copy Always for the this file (click the file and press F4 to bring up the Properties dialog).
Make sure you save this XML file before moving onto the next step.
Adding Code to Navigate to the Selected Photo
To properly retrieve the photo that the user selected through the Extras feature, the application must override the OnNavigatedTo event in MainPage.xaml.cs. The steps here show you how to do that: 1. If you are continuing from the Extras walkthrough, you already have all the necessary references and using statements in place. However, if you were to start a new project, make sure that you have a reference added to Microsoft.Xna.Framework and the following using statements are in place:
using System.Windows.Navigation; using Microsoft.Xna.Framework.Media; 2. Paste the following OnNavigatedTo method (or add to that method if you are continuing from the Extras walkthrough). Note how the basic operation is that of reading a query string passed in, determining whether there is a value for the FileId parameter, and then trying to retrieve the photo from the Media Library by that token ID. try { IDictionary<string, string> queryStrings = this.NavigationContext.QueryString; if (queryStrings.ContainsKey("FileId")) { MediaLibrary library = new MediaLibrary(); Picture picture = library.GetPictureFromToken(queryStrings["FileId"]); BitmapImage bitmap = new BitmapImage(); bitmap.SetSource(picture.GetImage()); WriteableBitmap picLibraryImage = new WriteableBitmap(bitmap); imgPhoto.Source = picLibraryImage; } } catch (Exception ex) {
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