MICROSOFT_PRESS_EBOOK_PROGRAMMING_WINDOWS_8_APPS_WITH_HTML_CSS_AND_JAVASCRIPT_PDF

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• In Visual Studio Express 2012 for Web, right-click the project and select Copy Web Site. In the dialog that appears, click Connect along the top to open the Open Web Site dialog (below). Select FTP site on the left, enter the FTP hostname on the top, enter site/wwwroot in Directory, and then enter your credentials at the bottom. Make sure to prefix your username with the site name and a backslash (for example, ProgrammingWin8-JS-CH13-HelloTiles\JohnQUser) or you’ll be very confused by Azure’s refusal to let you through the door! Finish by clicking Open. • Once Visual Studio Express 2012 for Web is connected to the Azure site, you can upload your files. • Once that’s complete, you should be able to use the site URI plus Default.cshtml as the URI for the tile update service. For instance, try http://programmingwin8-js-ch13-hellotiles.azurewebsites.net/dayofmonthservice.php with the Push notifications sample, Scenario 5, and http://ProgrammingWin8-JS-CH13-HelloTiles.azurewebsites.net/Default.cshtml with Scenario 4 and you’ll see the same results as when we used localhost. You can also just visit these URIs directly to see the XML they’re producing. With this, you now have the ability to scale up your Windows Azure hosting, with your app supplying the hosted URI to the periodic update API. This also puts you in a good position to use push notifications, as we’ll see later, but because those are also often used with toasts, let’s see how toasts work next. 598
Toast Notifications So far in this chapter we’ve exhausted the subject of tiles and tile updates, which is actually a great prelude to our next topic, toast notifications. This is because the process of creating and issuing toasts is quite similar to that for tiles and is simplified by the fact that there are no periodic updates for toasts: they either come from the running app, from background tasks, or through push notifications, as we’ll see in “Push Notifications and the Windows Push Notification Service” below. Fortunately, the topic of toasts is considerably shorter than that of tiles. Here are the salient aspects of toasts: • Toasts always use the app’s Background Color and Foreground Text settings in the manifest for branding, along with the small logo. There are no means to override this; the branding attribute in the XML is ignored for toasts. • An app must set the Toast Capable setting in its manifest for any toasts to appear on its behalf. This is found in the Application UI > Notifications area: • As shown long ago in Figure 13-8, the user can disable toasts for a particular app or disable them globally (which I find helpful when recording a screencast!). System administrators can also disable toasts by policy. To check this status programmatically, look at the Toast- Notifier.setting property, a value from the NotificationSetting enumeration that will be enabled, disabledForApplication, disabledForUser, or disabledByGroupPolicy. • When enabled, toasts always appear in the upper right corner of the screen (left-to-right languages) or the upper left corner (right-to-left languages). This is not configurable. • Toasts are managed through instances of the Windows.UI.Notifications.ToastNotification or Windows.UI.Notifications.ScheduledToastNotification classes. The first supports an expirationTime property; the scheduled toast supports deliveryTime, snoozeInterval, and maximumSnoozeCount properties. • As with tiles, the content of toasts are created with an XML payload from one of four text-only and four image-plus-text templates, as shown on the Toast template catalog. Toast templates are acquired from the ToastNotificationManager object’s getTemplateContent method, can be created from strings, or can be created through the Notifications Extensions Library. Various options can be set in the XML: 599
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Table of Contents Introduction ....
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WinJS Tools for Pages and Page Navi
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Chapter 6: Layout .................
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Design Guidelines for Settings ....
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Manipulating Audio and Video ......
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Managing Secondary Tiles ..........
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The User Profile (and the Lock Scre
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The Windows Store APIs ............
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Introduction Welcome, my friends, t
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I'm also assuming that your interes
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Acknowledgements In many ways, this
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Support for developers, however, ca
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technologies, including DirectX, XA
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The upload process will walk you th
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FIGURE 1-2 A typical app page in th
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do this, I’m sure!). In a hotel,
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The app host is more or less Intern
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Sidebar: Mixed Language Apps Window
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When snapped, on the other hand, ap
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Capability Description Prompts for
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Taking a Break, Getting Some Rest:
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So you might say, “Well, I should
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that the user has to configure the
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Fortunately, the Windows Store dash
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graphics called for in the design s
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4. After Visual Studio churns for a
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Add-AppxDevPackage. That batch file
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package, whereas a single / refers
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QuickStart #1: Here My Am! and an I
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FIGURE 2-8 Snapped wireframe (left;
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which we’ll instantiate a Bing ma
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orientation, screen resolution, and
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FIGURE 2-12 Full-screen landscape v
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What this means is that, for the mo
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Create the map (though the namespac
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Next, in the second parameter to po
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FIGURE 2-17 Setting the Location ca
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Here we’re providing capturePhoto
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the contract is an abstraction that
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Extra Credit: Receiving Messages fr
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Note that such apps might not be ab
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Chapter 3 App Anatomy and Page Navi
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content and controls from web servi
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Such capabilities are blocked becau
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Can you do any kind of dynamic page
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appdata. This happens via Windows.S
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I don’t know about you, but I rea
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telling you to not use it! After al
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App Activation First, let me congra
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In the table, note that 80% scale t
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Activation Code Paths As we saw in
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splashScreen SplashScreen Contains
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In truth, so long as the user keeps
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Of course, setPromise ultimately do
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previousExecutionState values are d
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object to which you can add whateve
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Because we stored lastPosition in s
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FIGURE 3-9 The output of the Simple
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What about launching from the previ
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For all other details on this funct
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The Navigation App Template, PageCo
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(function () { "use strict"; WinJS.
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}, ); if (that.pageElement.winContr
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Sidebar: Helping Out IntelliSense I
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thousands of items, where tapping a
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Completing the Promises Story Whew!
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mechanism on top of singular XHR op
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The story of controls in Windows 8
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Creating or instantiating HTML cont
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Hyperlink href, target Link text L
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defined as part of the WinJS.UI nam
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Clearly, then, the bulk of the work
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var element = document.getElementBy
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This example is taken directly from
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FIGURE 4-7 Expanding a WinJS contro
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Flexbox -ms-[inline-]flexbox (value
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Note Though not shown here, you can
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For the ToggleSwitch, win-* classes
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• If a WinJS.UI.Tooltip is gettin
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Custom Control Examples To see thes
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Between calendar.js and calendar.cs
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]]> Whe
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This would be appropriate if you cr
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Two-way: essentially one-way bindin
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The code for this can be found in T
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Sidebar: Data-Binding Properties of
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Implementing Two-Way Binding To imp
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• oneTime A function that just lo
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• Windows 8 apps have rich stylin
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Collection Control Basics To seek t
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indingList: bindingList, array: arr
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Now while the ListView control in S
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The header template in html/scenari
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In the modified sample I changed na
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} return groupCompareGlobalized(lef
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a function instead of a declarative
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var list = new WinJS.Binding.List()
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data-win-options="{ itemDataSource:
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e used anywhere it’s appropriate,
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If you were to provide your own nav
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sample code in this chapter’s com
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Because of data binding, changes to
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What is does have, however, is this
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What you then do inside the element
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• The groups themselves are all s
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and the current viewable area. Thou
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Styling Following the precedent of
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Technically speaking, the layout pr
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or you can set layout.groupInfo fro
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Using the first item’s dimension
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You can set a breakpoint in this fu
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Incremental Loading Apart from pote
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The yellow bars indicate execution
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If it’s not provided (as when the
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During initialization (outside the
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Chapter 6 Layout Compared to other
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that appear when needed through app
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Within the body of content, then, W
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} -ms-grid-columns: 120px 2fr 80px
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-ms-scroll-snap-x Shorthand to comb
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WinRT: filled -ms-view-state: fille
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Handling View States As I just ment
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var mql = window.matchMedia("(-ms-v
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individual items in snapped view. B
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FIGURE 6-5 Options for display size
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If your developer sensibilities obj
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Content goes here This is really
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Such a layout is most easily achiev
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Because the specs themselves are st
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/* In CSS */ #divMain { width: 100%
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CSS styles that are supported for W
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Within the activated handler docume
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Multicolumn Elements and Regions Tr
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FIGURE 6-9 CSS region chains to flo
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Chapter 7 Commanding UI For consume
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• Commands that can’t be placed
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which provide many specifics on pla
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Tip To prevent the app bar from app
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This example doesn’t provide any
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var appbar = document.getElementByI
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• afterhide occurs immediately af
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This button’s click handler uses
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In the extraClass properties we’v
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To provide graphics of your own, do
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It should come as no surprise by
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Flyouts and Menus Going back to our
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are optional with show. (Note also
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function confirmOrder() { bought =
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The point of this last example is t
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Also, go into css/header-menu.c
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In the contextmenu handler menu.sho
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Scenario 3 is identical to Scenario
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The app bar now appears as follows,
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This message will appear if the use
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Chapter 8 State, Settings, Files, a
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while our permanent home was being
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• Account and profile configurati
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By the way, you might have some rea
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var localSettings = Windows.Storage
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It is also possible to migrate app
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Tip There are some file extensions
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Sidebar: Closing Streams vs. Closin
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Using App Data APIs for State Manag
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efore setting up new defaults. As m
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Roaming State The automatic roaming
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good idea to not be too aggressive
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Each app-supplied command can do on
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There are two ways to implement thi
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function helpCommandInvoked(e) { va
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Programmatically Invoking Settings
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Sidebar: Changes to Permissions A c
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Think about this for a moment (as I
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eturns an appropriate StorageFile o
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function pickSinglePhoto() { // Ver
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When picking multiple files, the re
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indicate a new filename in which to
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scenario oriented on the music libr
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A QueryOptions is generally created
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The setPropertyPrefetch method goes
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What We’ve Just Learned • State
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Chapter 9 Input and Sensors Touch i
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• Second, when you need to handle
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One or more fingers touch the scree
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You might notice a conspicuous abse
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Note that this method has no effect
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• TouchCapabilities Properties ar
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Tip Pointer events won’t fire if
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Properties Description currentPoint
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The first step to receiving gesture
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• MSGestureHold occurs when MSPoi
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FIGURE 9-3 A conceptual representat
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FIGURE 9-4 The Input Instantiable G
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obviously a specific deceleration m
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• Process keydown, keyup, and key
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For passwords you get a key to hide
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keyboard sample. 50 Adding listener
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Standard Keystrokes The last piece
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FIGURE 9-9 The Input Ink sample wit
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(string), and timestamp (Date) prop
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Like all other WinRT APIs, however,
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Here’s an example of such code fr
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Chapter 10 Media To say that media
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movie.controls = true; document.get
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declared inline, created dynamicall
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} document.getElementById("r").styl
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function onImageError(source) { sou
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• By copying pixel data from a vi
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It’s also helpful to understand t
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Video Element Extension APIs Beyond
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vid.msInsertVideoEffect("GrayscaleT
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elements with the same source. The
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in the background. As a developer,
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function soundLevelChanged() { //Ca
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Playing Sequential Audio An app tha
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need to bypass the audio element an
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To guarantee the ordering we use Pr
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Thumbnails First, StorageFile.getTh
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or combination of System.GPS.Longit
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} return degrees + "°" + minutes +
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Most of the displayImageUI function
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provides a specific BitmapEncoder i
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method can be called only once and
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Transcoding and Custom Image Format
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Transcoding happens either from one
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In Scenario 2, the sample always us
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Media Capture There are times when
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ecordLimitationExceeded Fired when
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} captureInitSettings.videoDeviceId
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} // Add the devices to deviceList
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Streaming from a Server and Digital
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Here’s how such apps generally wo
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Next you’ll want to wire up handl
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• WinRT provides a rich API for m
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necessary. In this way, excessive a
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The Control Panel setting can be ob
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screen; the Panel animations are fo
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want to chain or synchronize animat
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Create addToList animation. var add
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CSS Animations and Transitions As n
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Animations work in an opposite mann
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Keyframes, while typically defined
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FIGURE 11-2 Output of Scenario 3 of
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What’s more, requestAnimationFram
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Still, 20% is a lot of CPU power to
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Chapter 12 Contracts Recently I dis
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File activation (file type associat
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more specific. For instance, when a
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var dataPackageTitle = document.get
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The other interesting part of Scena
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When sharing an image, don't forget
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FIGURE 12-3 The Share content targe
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• Acknowledge user actions when y
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The key here is the args.detail.sha
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target app. If you’re using image
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FIGURE 12-7 Controls to create a qu
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The question is how to wire up comm
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The Search contract that makes this
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FIGURE 12-11 The Search declaration
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} } })); In the search activation p
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} }); Windows.ApplicationModel.Sear
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The request object also has a getDe
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Type to Search The final feature of
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egistered for that type, rather tha
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At the very bottom of this UI you c
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ecord a new sound. In such cases, h
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Activation of a File Picker Provide
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Windows.ApplicationModel.Activation
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A final note is that a file picker
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}; // Create a file to provide back
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The next step for the provider is t
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FIGURE 12-18 The provider sample’
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FIGURE 12-21 The provider sample’
Page 547 and 548: • If the UI status is visible, sw
Page 549 and 550: Just as the file picker contract al
Page 551 and 552: Using the Contact Picker Contacts a
Page 553 and 554: } } }); Contact Picker Providers On
Page 555 and 556: As you can see, the homeEmail field
Page 557 and 558: Chapter 13 Tiles, Notifications, th
Page 559 and 560: FIGURE 13-1 The typical default Sta
Page 561 and 562: Selecting an item on the Start scre
Page 563 and 564: In many ways, live tiles might redu
Page 565 and 566: toss up lots of superfluous toast,
Page 567 and 568: Yet Windows doesn’t want to force
Page 569 and 570: The third way an app can issue upda
Page 571 and 572: Providing both square and wide stat
Page 573 and 574: • arguments A string that’s pas
Page 575 and 576: function activated(eventObject) { i
Page 577 and 578: 16 or fewer characters that is used
Page 579 and 580: Third, if you supply an image that
Page 581 and 582: arrive on a Windows 8 machine will
Page 583 and 584: The Notifications Extensions Librar
Page 585 and 586: The other bits of the manifest that
Page 587 and 588: In such cases it would be better to
Page 589 and 590: Windows.UI.Notifications.BadgeUpdat
Page 591 and 592: you’d use start time), or the pha
Page 593 and 594: Tip The tile and badge updaters are
Page 595 and 596: eturned from page requests, as we
Page 597: through the Web platform installer.
Page 601 and 602: FIGURE 13-16 Issuing text toasts th
Page 603 and 604: supports addImageQuery for scale, l
Page 605 and 606: A scheduled toast is created using
Page 607 and 608: To update a tile, set a badge, or i
Page 609 and 610: Your app should go through this sho
Page 611 and 612: matter of sending an XmlHttpRequest
Page 613 and 614: In the running app, the pushnotific
Page 615 and 616: Background Tasks and Lock Screen Ap
Page 617 and 618: FIGURE 13-18 The manifest editor fo
Page 619 and 620: In this code, the BackgroundTaskBui
Page 621 and 622: var internetCondition = new backgro
Page 623 and 624: The Background task sample provides
Page 625 and 626: Note Working with the lock screen i
Page 627 and 628: Debugging Background Tasks By this
Page 629 and 630: • Periodic updates for tiles and
Page 631 and 632: Network Information and Connectivit
Page 633 and 634: networkstatuschanged event that we
Page 635 and 636: Note Windows Store apps written in
Page 637 and 638: Programmatically, as noted before,
Page 639 and 640: Although this option will not set u
Page 641 and 642: hundred kilobytes—if you know fro
Page 643 and 644: Finally, avoid using XHR for large
Page 645 and 646: Starting a download transfer happen
Page 647 and 648: There is also a variation of create
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operations—it is possible to crea
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); "form-data", "------------------
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Basically, you would change the pol
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Authentication, Credentials, and th
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The result from pickAsync, as given
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To clarify the relationship between
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There is one subtle difference betw
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Within the web authentication broke
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https://www.facebook.com/dialog/oau
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Single Sign On with Live Connect Be
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setAccountPicturesAsync (for provid
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And lastly it’s worth at least li
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} var scenario1Link = document.getE
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} return currentFeed.items[currentI
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When data arrives, the handler rece
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} // This is a helper function echo
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On the client side, StreamSocket ag
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And closing the socket in Scenario
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In the sample, we first create a Me
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} try { var size = dataWriter.measu
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What We’ve Just Learned • Netwo
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• Connecting with devices in the
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The XInput and JavaScript controlle
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function renderLoop() { var state =
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FIGURE 15-3 Sample device enumerati
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The Removable Storage sample, in Sc
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• Communications are supported on
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Advertising a Connection Making you
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Tap to Connect and Tap to Activate
Page 707 and 708:
On a simpler note, publishing a URI
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FIGURE 15-5 Scenario 2 of the Print
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Print Document Sources No matter wh
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If you don’t add a handler for th
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The final bit to mention in the cod
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Indeed, when we speak of mixed lang
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Again, components can also make use
Page 721 and 722:
Sidebar: WinRT Components vs. Class
Page 723 and 724:
Once you add the name of a class an
Page 725 and 726:
With the basic mechanics worked out
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As we did with C#, let’s start by
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Comparing the Results The Image Man
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} return sum; Running a count with
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Component Implementation • When c
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When this worker is started, the on
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FIGURE 16-4 A promise manages and i
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Note that Task.Run does not support
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As with C#, there are additional st
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public IAsyncOperation ConvertPixel
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method called ConvertGrayscalFileAs
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Event names, on the other hand, are
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One challenge, as we saw in the qui
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The Building your own Windows Runti
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• Check against an encrypted lice
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Chapter 17 Apps for Everyone: Acces
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Your App, Your Business If you chec
Page 759 and 760:
FIGURE 17-1 Creating an app package
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desktop applications and distribute
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means is that if you want to promot
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You should also strongly consider m
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• In-app purchases through the Wi
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That said, WinRT provides for the f
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When your app accesses CurrentAppSi
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} }); currentApp.licenseInformation
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You won’t hit your breakpoint imm
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If you’re using a custom commerce
Page 779 and 780:
You might have noticed that a Produ
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Id=\"e2a62d42-dbca-43d2-b779-66eb91
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The latter two we’ve already cove
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• aria-label Directly provides te
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Apart from the small bits of code i
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control sample, and switch between
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Scenario 2 shows similar effects wi
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Canvas a better choice? To this poi
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one resource. For a few examples of
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addition of new string and image re
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FIGURE 17-9 Control panel dialogs f
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Formatting Culture-Specific Data an
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Sorting and Grouping Just as a worl
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With images, you can reverse them w
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Note CSS files can contain string l
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Manifest: Let’s turn now to the m
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Other affected files in this app in
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Sidebar: String Resources in Settin
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the folder name itself doesn’t us
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If you like, you can just send your
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FIGURE 17-11 The Multilingual App T
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Second, the Toolkit will detect if
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Localization Wrap-Up Well, we’re
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Let me say that again: all of this
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Onboarding and Working through Reje
Page 829 and 830:
Connecting Your Website If you have
Page 831 and 832:
What We’ve Just Learned • An ap
Page 833:
What do you think of this book? We
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MICROSOFT_PRESS_EBOOK_PROGRAMMING_WINDOWS_8_APPS_WITH_HTML_CSS_AND_JAVASCRIPT_PDF

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