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)
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  1. Enable removing language code from the "language history"

    If you ever selected "ru" and "ru-ru" laguages then it causes Tile localization show the en-us(default) tile localization to show.

    When I removed the "ru" language code and published my new version, the old version still remains with "Replaced and unpublished". Wich means the new version not fully replaced the old version.
    And this causes me very serious problems:

    1. Some of my users will still receive the old version of my app (after weeks). The store randomly gives the old or the new version of my app.

    2. My app has a WP7 version and a WP8 version XAP…

    31 votes
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      4 comments  ·  Bugs  ·  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 →
      • MediaCapture.InitializeAsync - throws unauthorized exception

        It seems that there is a bug, which appeard after the last WP8.1 Update. MediaCapture.InitializeAsync keeps throwing UnathorizedException. I tested it on my previously (before the update) working example and MSDN sample.

        18 votes
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          6 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
        • Unify Splash Screen background color

          When UWP app has a Splash Screen with transparent background color declared in the app manifest, desktop renders the accent color while phone renders the background color. It does not make sense.

          18 votes
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            1 comment  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
          • Clipboard content should persist even if it contains a delayed format

            I've noticed that when you create a DataPackage containing both data provided directly (let's say text, using SetData) and delayed formats like a bitmap (using SetDataProvider), when closing the application the whole clipboard content is cleared.
            I expect that the content set directly (the text) to persist after closing the application.

            13 votes
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              1 comment  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
            • Wallet does have a problem when encoding ">" into Aztec Barcode

              I have the following entry:
              <Barcode>
              <Symbology>AZTEC</Symbology>
              <Value>M1STURM/ANDREAS EZ5E2PU TXLSTRAB 6531 062Y020A0023 33C&gt;5080 B2A N00 </Value>
              </Barcode>
              there you can see the &gt; which is correct XML/HTML encoded version of ">".
              However when the Barcode is generated, it will generate this code as image:
              M1STURM/ANDREAS EZ5E2PU TXLSTRAB 6531 062Y020A0023 33C.Taacgpbwnxf +ooooooooooooooooooooooooooooooooooooooov!�
              As you can see, it fails at the position where the ">" should be.
              I decoded it using http://zxing.org/w/decode.jspx
              When I encode "M1STURM/ANDREAS EZ5E2PU TXLSTRAB 6531 062Y020A0023 33C>5080 B2A N00 "
              using http://www.java4less.com/barcodes/AztecCode/php/demo.php
              I can then enter the encoded image into the above mentioned decoder and it will decode…

              12 votes
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                0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
              • Fix media pipeline in Windows Phone 8.1

                The media pipeline seems to be broken in Windows Phone 8.1. It seems to have a lot of problems with memory management.

                When creating a background audio app that uses IMediaSource to stream audio in Windows Phone 8.1, the app's components eventually throw OutOfMemoryException and even StackOverflowException under some circumstances. When looking through the memory dumps, there's a lot of uncollected garbage inside.

                Here is a discussion on MSDN forums (see latter posts):
                http://social.msdn.microsoft.com/Forums/wpapps/en-US/37ac0ed7-1884-4251-9914-07fae6467b98/mediastreamsource-not-working-properly-in-windows-phone-81

                11 votes
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                  0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                • "Access is denied" Exception with CurrentAppSimulator on Windows 10 Phone

                  Trying to call RequestProductPurchaseAsync on CurrentAppSimulator to test in-app purchasing is currently not working on Windows 10 Phone. The call throws and "Access is denied" Exception.

                  Note: this code works perfectly fine in Windows 10 for PC/Tablet, but is not working in the Phone simulator or actual device running Build 10512

                  9 votes
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                    0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                  • Pubcenter Ads should not play sound unless clicked on

                    Pubcenter Ads should not play sound unless clicked on or have a way to mute ad sounds. Users can't hear content in apps when video ads play automatically and this is extremely distracting to the user to the point where it can make the app unusable.

                    8 votes
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                      0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                    • Fix MediaStreamSource in Windows Phone 8.1

                      When creating an app that uses MediaStreamSource to stream audio in Windows Phone 8.0, everything works just great. When porting this app to Windows Phone 8.1, the sound is flickering and its components are "stack overflow"-ing.

                      Here is a discussion on MSDN forums:
                      http://social.msdn.microsoft.com/Forums/wpapps/en-US/37ac0ed7-1884-4251-9914-07fae6467b98/mediastreamsource-not-working-properly-in-windows-phone-81?forum=wpdevelop

                      And here is a sample project source code:
                      https://wp8libflac.codeplex.com/

                      8 votes
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                        0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                      • Consider Displaying URL/Location/Context to User in UWP Application During Authentication

                        (Administrator: I am listing this one as a bug, because I consider it a existing security issue that can be exploited at present, but please feel free to categorize it however you see fit, as always!)

                        There is what I consider a security issue in UWP applications, that I feel should be addressed. Namely, when the user goes to authenticate their application with a 3rd party authentication provider (e.g. Facebook, Google), the control that is used to handle the process does not display the URL to the user, so they do not know where the content is being loaded from…

                        8 votes
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                          1 comment  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                        • ApplicationData isn't removed after uninstall windows phone 8

                          I've developed application which targets Windows Phone 8.0. When XAP is deployed on Win10 Mobile device it has some strange bug.
                          After re-installing the app (uninstall - deploy) Application's Data stays the same - it isn't removed after unstalling the app.
                          But when I retarget the app to Windows Pone 8.1 problem disappears.
                          Could you please investigate that?

                          Regards,
                          Denis

                          5 votes
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                            1 comment  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                          • OnlineIdAuthenticator with CredentialPromptType.RetypeCredentials allows empty password

                            I'm using the OnlineIdAuthenticator instead of the LiveSDK because it's API references that I would be able to always show a UI to prompt the user to enter their credentials by setting the "CredentialPromptType" to "RetypeCredentials". However, when trying this (ran it on WP 8.1 and WP 10) the user is allowed to leave the password field empty and click on "Save", which then returns them to the app's code to handle the token returned. Because this is SSO for phone, the token is filled in and the app continues like the user had entered their credentials correctly. If I…

                            5 votes
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                              1 comment  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                            • ShellExecuteW w/ symlinks broken on Windows 8.1 and WIndows 10

                              Hi,

                              I reported this bug in the "General Windows Desktop Development Issues"
                              MSDN Forum on 2013-12-05. It got noticed by some guy from Microsoft,
                              but then nothing else happened. See
                              https://social.msdn.microsoft.com/Forums/en-US/073d02a6-1181-4694-9e50-d6a05bd80663

                              This bug is still present in the Windows 10 Technical Preview,but the
                              below text from my original bug report doesn't explicitly refer to
                              Windows 10.

                              In Cygwin we're using the CreateSymbolicLinkW function to create native
                              symlinks. Preferring a simple code path, we don't make a distinction
                              between short pathnames < MAX_PATH and long pathnames. All pathnames
                              given to CreateSymbolicLinkW are long path prefix prepended
                              (\\?\C:\foo\bar\baz), including the symlink target…

                              4 votes
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                                0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                              • MediaLibraryExtension SaveSong() forces file extension to .mp3 even for .wma files

                                .wma files copied/moved to Music library using MediaLibraryExtensions.SaveSong() API from a windows phone app are stored in Music library with .mp3 extension, though the audio file itself will play properly from Music library

                                When you share it via email - you can notice that file attached has a .mp3 extension

                                Or connect phone to PC with usb cable and browse through windows explorer to Music folder - you will find the file with .mp3 extension. Manually renaming the file extension to .wma on PC will allow us to play the file properly in Windows Media Player

                                I discussed this issue…

                                3 votes
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                                  1 comment  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                                • Strange behaviour of Pivot inside a SplitView Pane

                                  When you place a Pivot in a SplitView Pane it behaves very strange. Headers don't react to click/touch under certain circumstances, swiping doesn't change the active PivotItem most of the time. The content of the PivotItem seems too wide - wider than the SplitView Pane.
                                  The Pivot behaves normally if I place it inside the SplitView Content though. So as far as I can tell the combination SplitView Pane + Pivot is the cause for this problem.
                                  Why I want to do that? I want to achieve something similar to what Visual Studio Code does in its sidebar. But the…

                                  3 votes
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                                    1 comment  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                                  • Mismatched rendering for xaml pdf printing

                                    From WinRT to UWP, my xaml-generated pdf is not rendering the same.
                                    See below the template of my button and the two different renderings. Correct in pages and designer but not when printing it to a pdf.
                                    Code: http://s3.postimg.org/cttm2rmjn/buttons_code.png
                                    In-app (classic page): http://s3.postimg.org/y27ak710j/buttons_ok.png
                                    Xaml pdf printing: http://s3.postimg.org/52cw47ieb/buttons_nok_pdf.png

                                    Other strange differences did show up as well - especially in Grids - but the example above is the craziest one.
                                    Please tell me if you want some details about other mismatches.

                                    3 votes
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                                      1 comment  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                                    • Using x:Bind or Binding in a Setter Value property of a VisualState

                                      Using x:Bind or Binding in a Setter Value property of a VisualState will not be executed at the start of the view, you have to change the state of the and then go back before the bindings are used resulting in initial views being broken.

                                      For code sample see: http://stackoverflow.com/questions/43880567/uwp-bindings-in-visualstate-setters

                                      3 votes
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                                        on the backlog  ·  0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                                      • ContactPicker class/API doesn't work as expected.

                                        I'm trying to use the API for Contacts in the namespace Windows.ApplicationModel.Contacts, but it doesn't work as expected. First of all, on Windows Phone 8.1 I always get an IOException when trying to call PickContactAsync(). This is very strange, since I was expecting to see at least Contacts app to be launched, seems there's some problem establishing the contract. I also checked the Contacts permission was enabled on the Package.appxmanifest.

                                        On Windows 8.1 / RT 8.1 che call to the PickContactAsync() works but I receive wrong data instaed, for example:
                                        FirstName and LastName are both in FirstName (and LastName is…

                                        3 votes
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                                          0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                                        • Bugs in badge elements ("activity" & "error" glyphs) / C# Windows UWP

                                          Hello,

                                          According to the MSDN manual (https://msdn.microsoft.com/de-ch/library/windows/apps/br212849) there should be a glyph "Activity" (<badge value="activity"/>).

                                          Unfortunately, the glyph "activity" is never displayed on the tile. But when I'm using any other glyph (such as "alarm", "alert", "attention"), it is properly displayed.

                                          Furthermore, the gyph "error" can also not be used. Instead, the glyph "attention" is shown.

                                          See here for details on this issue:https://social.msdn.microsoft.com/Forums/windowsapps/en-US/755869a1-53d4-410e-a61f-3a21e1a97caa/possible-bug-in-badge-elements-activity-glyph?forum=wpdevelop

                                          Would be great to have these bugs fixed soon.

                                          Thanks and best regards,
                                          Patrick

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