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)
  • Dev Center Store (developer portal, back-end services, reporting/analytics and process)
  • Windows Stores (Windows and Windows Phone)

Your suggestions will be reviewed by the Windows platform developer team, providing feedback to help with planning ideas and to better understand how developers are using the development platform.

What this forum is not intended to cover or capture:

If you’re new to this whole UserVoice thing, we’d like to note two important things about this site: (a) List items (and item rankings) represent community interest in features, and does not represent an actual priority list for the product team; and (b) Suggestions made using this forum will be moderated if they do not actually represent a feature request.

How can we improve the Windows dev platform?

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  1. Custom keyboard via code

    Allow to developers create a custom keyboard. eg. choose letters and numbers together

    4,995 votes
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      54 comments  ·  Framework  ·  Flag idea as inappropriate…  ·  Admin →
    • 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.

      1,751 votes
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        66 comments  ·  Framework  ·  Flag idea as inappropriate…  ·  Admin →

        Quick update. We are committed to bringing F# support to .NET Native. The initial version of .NET Native was designed to do a great job of compiling the most popular apps in the Windows Store. Since its launch, we’ve been working on .NET Native support for more advanced .NET IL code, like tail call instructions and complex generic types. These IL features are more common in F# apps than C# apps, and they’re the reasons the F# support isn’t there, yet, in .NET Native.

        Beyond .NET Native, there’s more going on with F# at Microsoft. We’re in the process of bringing F# to .NET Core. We see new teams inside Microsoft adopting F#. We’re excited to see startups considering and adopting F#. And we have an awesome open source community supporting the language and tools. If you’re interested in contributing, join us on…

      • Make Universal Windows Platform Open Source and Cross-Platform

        With the advent of //build 2015, the vision and direction of Microsoft seems to be open source and cross platform. This appears to be the case for every new product from Microsoft except for the Universal Windows Platform.

        It would be great, ideal, and wonderfully awesome to see this platform reach consistency with the rest of the organization and embrace the ideals, values, and benefits from being open source and cross platform like other areas of Microsoft now are (or are on their way to being).

        Please provide consistency throughout the entire Microsoft development ecosystem!

        1,220 votes
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          12 comments  ·  Framework  ·  Flag idea as inappropriate…  ·  Admin →
        • ToUpper property on TextBox

          Please create this option native to TextBox control
          It's very usefull in WinForm projects and could speed up development on universal app too.

          769 votes
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            3 comments  ·  Framework  ·  Flag idea as inappropriate…  ·  Admin →
          • Integrate BackgroundAudioPlayer and XNA MediaLibrary

            Allow the BackgroundAudioPlayer to play tracks from the MediaLibrary. Or allow applications that implement the XNA MediaPlayer class to run in the background.

            501 votes
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              14 comments  ·  Framework  ·  Flag idea as inappropriate…  ·  Admin →
            • MaskedTextBox Control

              The TextBox control is the most used control in a Windows program. It also cause a lot of problem either from QA or the user because of invalid data that was entered. Using a masked control will save a lot of time for the developer and reduce the complaints and bugs

              471 votes
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                on the backlog  ·  2 comments  ·  Framework  ·  Flag idea as inappropriate…  ·  Admin →
              • 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)

                378 votes
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                  4 comments  ·  Framework  ·  Flag idea as inappropriate…  ·  Admin →
                • Video Chooser Task

                  It would be good to have a Video Chooser Task that works in the same way as the PhotoChooserTask. The reason for this is for users to be able to do things like apply filters, add audio tracks, crop out a relevant section, etc... of a recorded video and saving it back to the MediaLibrary. I assume saving to the MediaLibrary will be part of the AR functionality in mango anyway?

                  369 votes
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                    18 comments  ·  Framework  ·  Flag idea as inappropriate…  ·  Admin →
                  • Low Latency Sound Effect support

                    Needed to create pro level sequencers, synths and music creation related apps!

                    222 votes
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                      7 comments  ·  Framework  ·  Flag idea as inappropriate…  ·  Admin →
                    • Background app execution

                      If iOS and Android can do it why can't Windows Phone? Like all the Timer apps on Android & iOS, they can update the badge numbers real time giving you a true countdown timer experience. Why cant Windows Phone do this? It should be able to do this! Would battery experience really degrade that much? If so me thinks this is a fundamental flaw in the OS!

                      206 votes
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                        8 comments  ·  Framework  ·  Flag idea as inappropriate…  ·  Admin →
                      • SIP Stack

                        A business feature that would be really nice to have support for it the ability to tie into a VoIP network for voip phone calls... the most common architecture is the SIP (Session Initiation Protocol). So I would like the ability to configure a SIP client that ties into our VoIP PBX and phone system.. so my WP7 would basically become my desk phone (extension). The only way this would really work well is if it ran in the background like the phone's native phone functionality.

                        201 votes
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                          1 comment  ·  Framework  ·  Flag idea as inappropriate…  ·  Admin →
                        • Expand/Enable Universal Windows Platform to Transpile to JavaScript (iOS/Droid Compatibility)

                          Companies like CSHTML5 (http://cshtml5.com) and DuoCode (http://duoco.de) are already doing this, but it would be great to see this effort officially adopted into the Microsoft Universal Windows Platform.

                          Using Roslyn (as DuoCode does), UWP Applications written in Xaml and C#/VB.NET get transpiled into JavaScript and rendered via HTML5 canvas. The results of which could be hosted anywhere that HTML5/JS can run, notably iOS and Droid platforms. Or even on a regular ol' website.

                          A mechanism that operates like PhoneGap/Cordova would have to be implemented so that access to external hardware APIs can be achieved.

                          That way,…

                          186 votes
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                            3 comments  ·  Framework  ·  Flag idea as inappropriate…  ·  Admin →
                          • Windows 10 UWP should support Reflection.Emit for Mocking frameworks

                            The lack of Reflection.Emit in UWP significantly impacts the ability of developers to create clean, AAA-compliant unit tests in an MVVM environment (the recommended architecture for building UWP apps). With no Reflection.Emit it is impossible to build a Mocking framework for providing testable implementations of interfaces used in Dependency Injection.

                            163 votes
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                              1 comment  ·  Framework  ·  Flag idea as inappropriate…  ·  Admin →
                            • Allow unsafe code

                              Full unsafe code support would:
                              1) Allow more code to be shared across platforms, and
                              2) Increase the performance of applications that needed it.

                              Here's a use case example:
                              I'm the author of BEPUphysics, a real-time simulation library. I wish to support many platforms as best I can with as much common code as possible. Unfortunately, in the current situation, I can't have the best of both worlds. If my goal is optimal performance, I must maintain separate codebases for a bunch of low-level queries and data structures. On the other hand, if my goal is as much common code…

                              128 votes
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                                0 comments  ·  Framework  ·  Flag idea as inappropriate…  ·  Admin →
                              • Provide developers and API to access default system sounds (such as those found in Settings - ringtones+sounds)

                                It would be really helpful if, for example, a developer makes an app that takes advantage of the schedule alarm API, and would like to enable the user to select a custom ringtone for that alarm. This API proposal would enable the user to select from many ringtones already available on the phone, and save developers the trouble of having to implement their own custom ringtones.

                                103 votes
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                                  4 comments  ·  Framework  ·  Flag idea as inappropriate…  ·  Admin →
                                • SD Card APIs to create/write/delete files

                                  In my application some data required to save on disk, There is limited storage in Phone memory, I just need api to write or create files folder wise on external memory like memory card..

                                  80 votes
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                                    4 comments  ·  Framework  ·  Flag idea as inappropriate…  ·  Admin →
                                  • Allow Windows Runtime public class inheritance

                                    Windows Runtime is a great platform, but it lacks some really basic things.

                                    One of those basic things is public class inheritance. Windows Runtime should allow public non-sealed classes. This is already implemented for XAML classes, now this should be available for all Windows Runtime components.

                                    You could also consider implementing this partially: for example, allow inheritance only between managed WinRT classes, and deriving managed classes from native WinRT classes.

                                    75 votes
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                                      2 comments  ·  Framework  ·  Flag idea as inappropriate…  ·  Admin →
                                    • Allow direct printing without Modern UI print dialog

                                      In Windows Store apps there is no way to programmatically initiate a print job.

                                      Under WPF, it is possible to initiate printing to the default printer by simply calling Print() on a properly configured PrintDocument object.

                                      We have a popular photo booth app in the Windows Store. It is able to provide a fully automated photo booth experience for the user's event guests EXCEPT when it comes to printing. In order to print, the guests must leave the tailored kiosk experience and interact with the local print dialog.

                                      If it were running under WPF, then it would simply print the…

                                      70 votes
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                                        4 comments  ·  Framework  ·  Flag idea as inappropriate…  ·  Admin →
                                      • SMS notification/subscription support

                                        Application developers currently (pre-Mango) have no facilities to access the c contents of an incoming SMS message. It would be great if applications could register for such a capability thus enabling scenarios such as SMS challenge authentication.

                                        57 votes
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                                          4 comments  ·  Framework  ·  Flag idea as inappropriate…  ·  Admin →
                                        • Create/Update/Delete reminders and alarms from a BackgroundAgent

                                          You can't add/update/delete alarms or reminders from a BackgroundAgent. It'd be great if we at least has the ability to change/edit reminders and alarms that were created by that app.

                                          49 votes
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                                            2 comments  ·  Framework  ·  Flag idea as inappropriate…  ·  Admin →
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