Universal Windows Platform (UWP)
A Microsoft platform for building and publishing apps for Windows desktop devices.
2,982 questions
1 answer
UWP pipe client and C++ Fulltrustprocess pipe server - Access to the path is denied
Hello UWP experts, I get "Access to the path is denied" when connecting a UWP namedpipeclient to C++ Fulltrust process namedpipe server in packaged (WAPP) and non packaged mode. Its a simple piece of code to see how the namedpipe works betweek…
Universal Windows Platform (UWP)
Windows API - Win32
Windows API - Win32
A core set of Windows application programming interfaces (APIs) for desktop and server applications. Previously known as Win32 API.
2,666 questions
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
11,053 questions
C++
C++
A high-level, general-purpose programming language, created as an extension of the C programming language, that has object-oriented, generic, and functional features in addition to facilities for low-level memory manipulation.
3,774 questions
asked 2024-11-19T04:13:17.18+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(137.6, 63%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EDF%3C/text%3E%3C/svg%3E)
DotNET Fan
271
Reputation points
commented 2024-11-21T17:38:35.3566667+00:00
DotNET Fan
271
Reputation points
0 answers
Windows.Data.Pdf.PdfDocument Crash with file size greater than 2GB
Same issue as here (no replies there, it's an old thread) https://learn.microsoft.com/en-us/answers/questions/248422/windows-data-pdf-pdfdocument-crash My notes: Crash is not catchable which makes it really hard to find reason for issue or…
Universal Windows Platform (UWP)
Universal Windows Platform (UWP)
A Microsoft platform for building and publishing apps for Windows desktop devices.
2,982 questions
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
11,053 questions
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(281.6, 88%, 37%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJR%3C/text%3E%3C/svg%3E)
1 answer
Can we create and destroy winrt::IObservableVector on different threads?
Hello, I’m working on a multi-threaded WinRT/C++ application and need some clarification on how thread safety works when using winrt::IObservableVector across threads. Specifically, if I create a IObservableVector on one thread (Thread 1) and pass its…
asked 2024-11-20T09:42:45.1266667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(118.4, 70%, 21%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESB%3C/text%3E%3C/svg%3E)
Shyam Butani
285
Reputation points
commented 2024-11-21T11:18:29.61+00:00
Shyam Butani
285
Reputation points
0 answers
How do I localize the AppDescription of Desktop Bridge apps?
I have a UWP application. The project contains the following files: de-DE\Resources.resw en-US\Resources.resw Each file contains a text with the key AppDescription. en-US is set as the default language in Package.appxmanifest. When submitting to the…
Universal Windows Platform (UWP)
Universal Windows Platform (UWP)
A Microsoft platform for building and publishing apps for Windows desktop devices.
2,982 questions
Windows Presentation Foundation
Windows Presentation Foundation
A part of the .NET Framework that provides a unified programming model for building line-of-business desktop applications on Windows.
2,788 questions
Microsoft Partner Center
Microsoft Partner Center
A Microsoft website for partners that provides access to product support, a partner community, and other partner services.
1,024 questions
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
11,053 questions
asked 2024-11-13T13:08:33.4966667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(67.2, 20%, 16%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EH%3C/text%3E%3C/svg%3E)
Heiko
1,261
Reputation points
edited a comment 2024-11-21T04:06:16.16+00:00
Junjie Zhu - MSFT
19,216
Reputation points Microsoft Vendor
0 answers
MediaClip.CreateFromFileAsync() throws System.ArgumentException
MediaClip videoClip = await MediaClip.CreateFromFileAsync(storageFileVideo); The above code occasionally throws the following exception: System.ArgumentException at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() + 0x21 at…
asked 2024-11-13T02:26:31.3266667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(256, 0%, 34%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EH%3C/text%3E%3C/svg%3E)
Hong
1,211
Reputation points
commented 2024-11-21T02:12:48.96+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(211.20000000000002, 92%, 30%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERL%3C/text%3E%3C/svg%3E)
Roy Li - MSFT
33,461
Reputation points Microsoft Vendor
0 answers
How to make sandbox account for testing to purchase app in Microsoft partner center?
"I want to create a sandbox account in Partner Center. How can I do that? I want to test in-app purchases. Could you please guide me?"
asked 2024-11-12T05:07:51.9433333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(233.6, 66%, 32%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EDP%3C/text%3E%3C/svg%3E)
Deepak Patel
60
Reputation points
commented 2024-11-21T01:58:30.35+00:00
Roy Li - MSFT
33,461
Reputation points Microsoft Vendor
0 answers
Remote Procedure Call Failed (HRESULT: 0x800706BE)
The application uses diagnostic APIs to prevent it from starting repeatedly. However, it crashes on startup, and the following exception information is logged: Remote procedure call failed. (Exception from HRESULT: 0x800706BE) at…
asked 2024-11-20T06:48:49.1666667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(3.2, 0%, 10%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EXS%3C/text%3E%3C/svg%3E)
Xie Steven
831
Reputation points
commented 2024-11-21T01:50:58.1333333+00:00
Junjie Zhu - MSFT
19,216
Reputation points Microsoft Vendor
0 answers
WNS(Raw Notification) fail after PC restart and cannot accept message push notifications
Hello, I have found that the message push service(WNS) cannot be used after restarting the computer. After restarting, the PushNotifications LongRunningTask.exe process was not running, so it did not receive a message and subsequent pushes were dropped.…
asked 2024-11-16T05:57:06.44+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(198.4, 38%, 29%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EC%3C/text%3E%3C/svg%3E)
coco
0
Reputation points
commented 2024-11-21T01:50:55.4666667+00:00
Roy Li - MSFT
33,461
Reputation points Microsoft Vendor
1 answer
One of the answers was accepted by the question author.
Can we create and destroy winrt::hstring on different threads?
Hello, I’m working on a multi-threaded WinRT/C++ application and need some clarification on how thread safety works when using winrt::hstring across threads. Specifically, if I create a winrt::hstring on one thread (Thread 1) and pass its ABI pointer to…
asked 2024-11-18T08:50:55.2833333+00:00
Shyam Butani
285
Reputation points
accepted 2024-11-20T09:44:24.6333333+00:00
Shyam Butani
285
Reputation points
1 answer
How to access camera preview frames with MediaCapture class in Unity?
Using the Windows MediaCapture class we can capture videos and images on the HoloLens 2. The class also offers preview capabilities (see here). However, I am not sure how to get the preview stream within Unity and then display it to the user. In the docs…
Universal Windows Platform (UWP)
Universal Windows Platform (UWP)
A Microsoft platform for building and publishing apps for Windows desktop devices.
2,982 questions
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
11,053 questions
HoloLens Development
HoloLens Development
HoloLens: A family of Microsoft self-contained, holographic devices that enable engagement with digital content and interaction with holograms in the surrounding environment.Development: The process of researching, productizing, and refining new or existing technologies.
402 questions
asked 2024-11-15T08:24:11.62+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(19.2, 71%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EV%3C/text%3E%3C/svg%3E)
Valentin
40
Reputation points
commented 2024-11-19T07:28:53.3133333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(198.4, 72%, 29%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EYL%3C/text%3E%3C/svg%3E)
Ying Li - MSFT
1,285
Reputation points Microsoft Vendor
1 answer
One of the answers was accepted by the question author.
Understanding the lifecycle of winrt::hstring with ABI handling
Hello, I'm trying to understand the lifecycle of winrt::hstring when working with the ABI and managing reference counts. Specifically, I want to store an winrt::hstring in a void* pointer, and to do so, I'm using the copy_to_abi API. This increases the…
asked 2024-11-14T11:10:33.95+00:00
Shyam Butani
285
Reputation points
accepted 2024-11-18T06:05:17.3233333+00:00
Shyam Butani
285
Reputation points
0 answers
System.Exception: The application called an interface that was marshalled for a different thread. (Exception from HRESULT: 0x8001010E)
public Dictionary<Guid, MyClass> _dictMyClass; ... if (_dictMyClass.ContainsKey(gID)) { MyClass myClass = _dictMyClass[gID]; } Occasionally and rarely), the above line throws the following exception: System.Exception: The application called an…
asked 2024-11-06T22:50:46.4466667+00:00
Hong
1,211
Reputation points
commented 2024-11-15T08:40:59.62+00:00
Junjie Zhu - MSFT
19,216
Reputation points Microsoft Vendor
1 answer
VS2022 Error When Deploying HoloLens 2 Application: GameAssembly.lib Not Found
I encountered an error while deploying a HoloLens 2 application using VS2022: GameAssembly.lib not found. I noticed that the file does not exist in the Build folder and I'm not sure why it wasn't generated. I am deploying via Wi-Fi.
asked 2024-10-29T13:31:49.65+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(57.599999999999994, 3%, 15%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
琛博 程
0
Reputation points
commented 2024-11-13T17:37:06.3033333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(163.2, 45%, 25%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ES%3C/text%3E%3C/svg%3E)
slaters5050
0
Reputation points
1 answer
One of the answers was accepted by the question author.
Does WinUI3 App support Miracast feature now?
Hi Microsoft team, I developed a UWP app to implement the screen mirror function with the Windows.Media.Miracast APIs. Now I want to migrate UWP to the WinUI 3 App(Windows App SDK), so I research how to migrate Miracast and find that WinUI 3 App didn't…
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(51.2, 3%, 14%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EZY%3C/text%3E%3C/svg%3E)
1 answer
Microsoft Store In-App Purchase Issue: Add-On Products Keep Loading and Show "PEX-CatalogAvailabilityDataNotFound" Error
I'm experiencing an issue with in-app purchases (IAP) in my Unity game published on the Microsoft Store. I have created multiple store-managed consumable add-ons (e.g., "speed_x1", "speed_x3") and have set up their respective product…
asked 2024-10-31T14:35:41.2666667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(124.80000000000001, 96%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EM%3C/text%3E%3C/svg%3E)
MecanzLuna
0
Reputation points
commented 2024-11-13T07:17:26.4566667+00:00
Junjie Zhu - MSFT
19,216
Reputation points Microsoft Vendor
1 answer
One of the answers was accepted by the question author.
Handling of UWP child window closing behavior
Hello UWP experts , I create the child windows from the main app using the below code. The requirement is at the start dont allow the user to close of window and allow only after 10 to 20 seconds. I couldn't find any pre close event for the child…
asked 2024-07-05T14:15:02.29+00:00
DotNET Fan
271
Reputation points
accepted 2024-11-12T17:26:16.2333333+00:00
DotNET Fan
271
Reputation points
1 answer
One of the answers was accepted by the question author.
Multiple Instances of App
Hi UWP experts, So i have enabled multiple instances of my app through the package manifest desktop4:SupportsMultipleInstances="true" and it works perfectly fine when the app is selected from the windows start menu and opens up multiple…
asked 2024-09-19T08:19:31+00:00
DotNET Fan
271
Reputation points
accepted 2024-11-12T17:24:29.3366667+00:00
DotNET Fan
271
Reputation points
3 answers
One of the answers was accepted by the question author.
Handling Appservice connections in a multiple instance of fulltrust process
Hello UWP experts, Please look at the below thread . This question is related to the thread. https://learn.microsoft.com/en-us/answers/questions/2087088/uwp-app-communication-with-another-process-(*-exe)?comment=question#newest-question-comment UWP app…
asked 2024-10-15T10:24:46.31+00:00
DotNET Fan
271
Reputation points
accepted 2024-11-12T17:22:08.84+00:00
DotNET Fan
271
Reputation points
2 answers
One of the answers was accepted by the question author.
Implementing app purchase with subscription add-on
i implemented app purchase in UWP firstly create add-on in Microsoft partner now status of add-on is (in the Microsoft store). After that write all the code as mention in "…
asked 2024-11-07T06:30:46.9133333+00:00
Deepak Patel
60
Reputation points
answered 2024-11-12T04:43:21.05+00:00
Deepak Patel
60
Reputation points
1 answer
One of the answers was accepted by the question author.
GetAssociatedStoreProductsAsync always returns error in a Game!
Hi, I have several APPS in the store and get the addons info using the GetAssociatedStoreProductsAsync() method. It returns the addons that are available for purchase from my app. Recently I created a GAME. and when I use the same method to…
asked 2021-05-18T02:36:28.167+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(140.8, 35%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMB%3C/text%3E%3C/svg%3E)
MG Bhadurudeen
626
Reputation points
commented 2024-11-11T04:56:26.5366667+00:00
Deepak Patel
60
Reputation points