Universal Windows Platform

Welcome to the Windows Platform Developer (WPDev) Feedback site. This feedback forum provides the WPDev community with a channel for feedback on the following topics:

  • Windows developer platform (APIs, runtimes, and controls)
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  1. Speech Recognition performance (when the grammar is local and the device is connected to a network)

    If the device is connected to a network, speech recognition with local SRGS custom grammar, it behaves exactly as if it did not have the local grammar and starts to communicate to the "websockets.platform.bing.com:443" endpoint, increasing by tens of times the waiting-time for the result... But if the device is disconnected from any network then the waiting time between "SpeechRecognizer StateChanged starts “SoundEnded”" and "the ResultGenerated event is invoked" is very small, less than 10ms! it should always be this way, since the grammar is on the device.

    Even the official Microsoft UWP sample accuses the same problem:
    https://github.com/Microsoft/Windows-universal-samples/blob/master/Samples/SpeechRecognitionAndSynthesis/cs/Scenario_ContinuousRecognitionSRGSGrammar.xaml.cs

    2 votes
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      3 comments  ·  Cortana/Speech  ·  Flag idea as inappropriate…  ·  Admin →
    • ucrtbase bug: _wspawnve is broken

      There is a serious bug in CRT (ucrtbase) which is part of Windows 10.
      The long story (please read it, since it contains all information about this bug): https://youtrack.jetbrains.com/issue/PY-17069#comment=27-1803709

      The short story:
      _wspawnve is broken when launched from Explorer (not cmd) because ``cenvarg.cpp`` expects undocumented environment variable ``=C`` (covered here: https://blogs.msdn.microsoft.com/oldnewthing/20100506-00/?p=14133) and this variable is not provided by Explorer.

      Tool to reproduce.

      ```
      #include<process.h>
      // Works from cmd.exe, but not from Explorer on Win10 :)
      void main() {
      const wchar_t* const args[] = {L"c:\\windows\\system32\\cmd.exe", L"/?", NULL};
      const wchar_t* const envs[] = { L"FOO=BAR", NULL};
      int r;

      _wspawnve(P_WAIT, L"c:\\windows\\system32\\cmd.exe", args,…

      24 votes
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        8 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
      • Create a radial items control

        Where items are arranged in a circle with configurable distance and size. It should allow to specify the center element. It should provide options to display orbits or lines from the center element.

        This control can be useful for creating a social or device graph.

        26 votes
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          2 comments  ·  UWP Community Toolkit  ·  Flag idea as inappropriate…  ·  Admin →
        • UWP SQL Server API

          Please support a native connection to Sql Server over IP:PORT. SqlClient class we use to have is critical

          628 votes
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            working on it  ·  56 comments  ·  Enterprise APIs  ·  Flag idea as inappropriate…  ·  Admin →
          • Add Markup Extensions to (and Improve) WinRT Xaml System (System.Xaml Parity)

            Much effort was made in WPF Xaml Serialization to decouple it from the presentation assemblies and moved into its own assemblies, System.Xaml, and System.Windows.Markup.

            This Xaml System had it's own serialization/deserialization mechanism in XamlServices class. Furthermore, this Xaml system had a very powerful component/concept that is conspicuously absent in WinRT: Markup Extensions.

            Markup Extensions are found in the following Xaml Systems:
            - WPF
            - Silverlight 5
            - Xamarin.Forms (notably NOT a Microsoft technology, but recognizes their power nonetheless)

            This feature is to ask for Xaml serialization featureset parity with WPF/System.Xaml. That means:
            - Custom Markup Extensions
            - XamlServices.Load and Save …

            321 votes
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              52 comments  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →

              An always happy Friday as I just got the TFS complete email :) As this hasn’t hit an insider preview SDK, i’m going to mark this still as “working on it” still BUT … this will be coming to an insider build near you!

              This item heart is markup extensions. There is one item that will not be there however that is relevant to markup extensions, IServiceProvider. I created a new item for that but we are working on this item [https://wpdev.uservoice.com/forums/110705-universal-windows-platform/suggestions/19416094-iserviceprovider-for-markup-extensions-for-wpf-par]. We have created a new one and we are working on that (that includes IProvideValueTarget and INameScope) but feel we have enough to ship this and mark this larger work item done and we do point out in reference to more work items need to happen, namely the work around IServiceProvider.

              Also XamlServices.Load / Save isn’t directly related to markup extenstion so we’re viewing that…

            • F# support in .Net native for UWP

              There has been some discussion on the blog post http://blogs.msdn.com/b/dotnet/archive/2015/07/30/universal-windows-apps-in-net.aspx?PageIndex=2#comments for supporting F# in the .Net native toolchain for UWP. I had posted this on the VS uservoice site https://visualstudio.uservoice.com/forums/121579-visual-studio/suggestions/7542181-add-f-support-for-net-native but it looks like that was the wrong place to do that. I hope the votes that request got will be considered for this. A lot of people are moving to F# PCLs for library code and to be able to use those PCLs in the UWP and get native compilation via .Net native tools would be great.

              828 votes
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                84 comments  ·  Framework  ·  Flag idea as inappropriate…  ·  Admin →

                F# team just posted an update on their GitHub. https://github.com/Microsoft/visualfsharp/issues/1096

                This is still a work in progress. One key thing from that post is some of these features and fixes have already been underway for months. While we’ve been investigating F#-specific issues in .NET Native, the team has continued to improve .NET Native. One feature known as “universal shared generics” is likely to have improved .NET Native’s support for F#, even without that being an explicit goal of the feature.

              • Splash screen for UWP apps should be optional

                Currently you have to provide a Splash Screen to get your app to pass the certification kit, which should really be a developer's choice like before.

                Splash screens are evil.

                http://vgable.com/blog/2010/01/13/splash-screens-are-evil/

                http://cyrilmottier.com/2012/05/03/splash-screens-are-evil-dont-use-them/

                https://medium.com/@DevAhamed/splash-screens-4afa874ed70 (Its not Branding, Its Annoying)

                You don't have to agree with me and all the links above, but at least make it optional.

                206 votes
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                  17 comments  ·  Framework  ·  Flag idea as inappropriate…  ·  Admin →

                  Per Ashish!
                  Happy to report that we are making the splash screen optional via a declaration in the UWP app’s package manifest. Tim Heuer and I talked about this at Build 2017. This is targeted to ship with the Fall Creators Update and we will be testing and tuning the timings via flights to Windows Insiders. To opt in, you simply set the property Optional=“true” on the SplashScreen element in your Package.appxmanifest in your app project. If your app is alive and kicking prior to a TBD timeout value, then users don’t see the splash screen. Otherwise they do.

                • Exclude suspending in desktop

                  Some apps can work intensively in background, for example it maybe video converting, online financial data processing and more.
                  Now UWP application will suspended when it go offscreen.

                  I offer to disable suspending in desktop/tablets for user selection (he can choose 'best performance' or 'power saving' options for example)

                  300 votes
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                    24 comments  ·  Background Processing  ·  Flag idea as inappropriate…  ·  Admin →

                    In Windows 10 Anniversary Update (Build 14393) we updated Extended Execution Unspecified Reason to be battery aware for PC device family. It is requested in the foreground and if the device is connected to AC power or if it has a battery but the user has set “Always Allowed” in the battery use settings then that app will be able to run without a time limit.

                    This works with the single process model as Extended execution does not work with a background task.

                    BackgroundMediaPlayback capability also won’t be suspended for certain scenarios.

                    We are keeping this open as there is more we can do. If you have scenarios we don’t work well in with the updated models, please tell us!

                  • Missing: File System Watcher API

                    I want to use FileSystemWatcher in uwp.

                    5 votes
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                      0 comments  ·  Framework  ·  Flag idea as inappropriate…  ·  Admin →
                    • Make PrintHelper support page breaks

                      Currently, page breaks are not supported with the PrintHelper. Could this be made possible in a future update? I'd like to print a long MarkdownTextBlock or at least TextBox that does not fit on just one page.

                      5 votes
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                        1 comment  ·  UWP Community Toolkit  ·  Flag idea as inappropriate…  ·  Admin →
                      • 323 votes
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                          17 comments  ·  File IO / Data Store APIs  ·  Flag idea as inappropriate…  ·  Admin →
                        • I have developed a custom AppBarButton with a number badge

                          I have developed a custom control: a AppBarButton with a number badge. Could I pull request to the UWP Control Toolkit?
                          Sometimes I need to show a number on the normal AppBarButton to indicate the count of the new messages. I have completed it.

                          7 votes
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                            0 comments  ·  UWP Community Toolkit  ·  Flag idea as inappropriate…  ·  Admin →
                          • Allow users with the developer role to create app packages in Visual Studio

                            It's great that the Dev Center now allows multiple users to access the same account, and I can submit app packages as a user with the developer role: https://msdn.microsoft.com/library/windows/apps/mt489008.aspx.

                            However, it would be even better if it allowed users with the developer role to create app packages in Visual Studio. At the moment, it is impractical for me as a developer to keep asking my boss for his Microsoft account just to create app packages.

                            150 votes
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                              working on it  ·  8 comments  ·  Dev Center + Store  ·  Flag idea as inappropriate…  ·  Admin →
                            • Documentation on how to call UWP API from C

                              All the documentation on how to call UWP methods are in C# and require the .NET platform.

                              Is there a low-level C interface as well? I'm developing a Java application so interop with C# is kinda tricky, while interop Shell32 API or C libraries is pretty easy and straightforward with JNA.

                              2 votes
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                                0 comments  ·  Desktop Bridge ('Centennial')  ·  Flag idea as inappropriate…  ·  Admin →
                              • Centennial should be an SDK - not a mere converter

                                It should be possible to create Visual Studio Centennial Project in WinForms, WPF, Win32, MFC, etc, which should also allow mixing of UWP Code (Like XAML UI) with full interop between native and UWP Platform. This should be the standard way to create and distribute powerful applications that are not restricted by the sandbox like universal apps.

                                20 votes
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                                  2 comments  ·  Desktop Bridge ('Centennial')  ·  Flag idea as inappropriate…  ·  Admin →
                                • Please provide support for S/MIME email

                                  S/MIME email is a mandatory requirement at my company and support for that on the Windows Phone platform is needed before we can consider it.

                                  11 votes
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                                    1 comment  ·  Communication APIs  ·  Flag idea as inappropriate…  ·  Admin →

                                    Thank you for the suggestion and commentary; I’m pleased to mark this suggestion as ‘Started’.

                                    As announced at the Microsoft Worldwide Partner Conference and on the Windows Phone Blog, S/MIME support is coming to Windows Phone with the Windows Phone enterprise feature pack, with an announced delivery in the first half of 2014.

                                    For more information, please refer to the Windows Phone team blog at:
                                    http://blogs.windows.com/windows_phone/b/windowsphone/archive/2013/07/10/making-windows-phone-an-even-better-choice-for-business.aspx

                                  • Windows Store app IAP subscription model

                                    Can you please add an IAP which would have a recurring payment (automatically charge user monthly / annually / etc)? Basically a subscription. This would simplify development of apps which now need to prompt the user to go buy an IAP each time it expires and it also makes the experience better for users (who might be used to this model from Android / iOS)

                                    5 votes
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                                      2 comments  ·  Dev Center + Store  ·  Flag idea as inappropriate…  ·  Admin →
                                    • Fix <uap3:Verb MultiSelectModel="Player">

                                      Currently, MultiSelectModel does not work as documented:

                                      Player: Your app is activated one time. All of the selected files are passed to your app as argument parameters.

                                      As far as Anniversary Update and Creators Update are concerned, MultiSelectModel has no effect and only one file is passed as argument to the application regardless of how many files have been selected in Explorer.

                                      Please support the passing of all selected files as command arguments.

                                      2 votes
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                                        0 comments  ·  App Extensions  ·  Flag idea as inappropriate…  ·  Admin →
                                      • Need more info for stack trace

                                        Now with Win10 Dashboard the stack trace only provide a snippet of the error which is included in the error lines. However with the new dashboard this is the only information that is provided on the dashboard. It's not enough for devs :(

                                        67 votes
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                                          9 comments  ·  Dev Center + Store  ·  Flag idea as inappropriate…  ·  Admin →

                                          Can you include in this user voice entry the specific details of what is missing? we are working on improving these reports, and the more specific information we have about issues the more we will be able to add.

                                        • Clipping does not work anymore since Creators Update

                                          If you create XAML like this:

                                          <Line X1="50" Y1="50" X2="150" Y2="50" Stroke="Black" StrokeThickness="10" Visibility="Visible">
                                          <Line.Clip>
                                          <RectangleGeometry Rect="50 50 100 10">
                                          </RectangleGeometry>
                                          </Line.Clip>
                                          </Line>

                                          it used to work fine and it still does in the designer. But as soon as you run the Code the Line disappears.

                                          3 votes
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                                            1 comment  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
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