3,040 questions with Developer technologies | Universal Windows Platform (UWP) tags
Publishing a .NET MAUI app fails with error message "You must include a valid app package manifest file named AppxManifest.xml in the source."
I'm trying to publish a .NET MAUI app. The source code contains a "Package.appxmanifest" file. When I try to publish, it fails with the following error messages: You must include a valid app package manifest file named AppxManifest.xml in…
Developer technologies | Universal Windows Platform (UWP)
Positioning UWP ContentDialog on top of AppWindow.
In UWP app , I have a AppWindow which is opened from the main window with the below code. var appWindow = await AppWindow.TryCreateAsync(); var frame = new…
Developer technologies | Universal Windows Platform (UWP)
How to connect GATT profile for classic bluetooth device?
I have bluetooth device that uses gatt profile, but it doesn't support ble connection i can succesfully connect to gatt profile on classic only device with android/ios/linux client. How can i use gatt services in classic bluetooth device on windows pc?
Developer technologies | Universal Windows Platform (UWP)
Windows Task Scheduler: Scheduled Job Fails with Launch Failure Error (2147943726) When 'Do Not Store Password' is Checked.
I am registering task in Windows Task Scheduler with settings "Run whether user is logged on or not" and "Do not store password. The task will only have access to local computer resources." enabled. When task triggers it is failing…
Developer technologies | Universal Windows Platform (UWP)
UWP - https certification valiation issue
I am trying to call an https api on a payment device, it returns a certificate signed by intermediate CA and that signed by root CA. I have installed root CA in trusted store of windows, added capability in WPF manifest. It returns error - Partial chain…
Developer technologies | Universal Windows Platform (UWP)
ms-appinstaller protocol has been disabled.
Hi, I have a WPF application and a Windows Application Packaging Project. I use Publish -> Create App package -> Sideloading -> enable automatic updates package is created and we put the output entire folder on our website. when Win10 users…
Developer technologies | Universal Windows Platform (UWP)
How to hide the topbar in Hyper-V client in full screen?
This thing here is in the way
Developer technologies | Universal Windows Platform (UWP)
UWP app flickering on ARM PC
Hi everyone. I have an UWP application and I'm running on a ARM PC. When I open a customized content dialog the screen starts blinking. Unfortunately, I cannot show the application nor the code, but do you guys know some cases that an ARM PC blinks…
Developer technologies | Universal Windows Platform (UWP)
Permissions in Inkscape bombed
How do I remediate my Inkscape app that is frozen and won't allow me to start it? I have 'repaired" it, when that didn't work I removed it, and when I tried to reinstall Inkscape it would not reinstall.
Developer technologies | Universal Windows Platform (UWP)
Can we prevent Narrator from speaking UI control's name?
Hello, I'm working on WinUI2 app with XAML island in purely C++ (no XAML code). I want to support Narrator screen reader for my app. I tried to set accessibility props (name and helpertext) for UI controls. While this props are being read by Narrator, it…
Developer technologies | Universal Windows Platform (UWP)
ListView events arent always triggered.
Hello, I am not sure if I selected right tag for my topic, but there is not present UWP tag naw. I have problem with ListView. If my ListView has many rows (about 150+), some events are sometime not triggered (but sometime they are triggered as well). If…
Developer technologies | Universal Windows Platform (UWP)
Help Needed for Connecting POS Printer via USB in UWP App
Hi Team, I have implemented POS printer functionality in my UWP app. When I connect the POS printer using Bluetooth, it works perfectly. However, when I connect the printer via a USB cable, I’m unable to find a way to detect or connect to the printer…
Developer technologies | Universal Windows Platform (UWP)
Your Teams app is an absolute disaster. It’s beyond frustrating — I don’t receive photos or messages on my computer, and they randomly show up on my phone, if I’m lucky. This is not a one-time glitch, this is a consistent, widespread failure. Everyone I k
Your Teams app is an absolute disaster. It’s beyond frustrating — I don’t receive photos or messages on my computer, and they randomly show up on my phone, if I’m lucky. This is not a one-time glitch, this is a consistent, widespread failure. Everyone I…
Developer technologies | Universal Windows Platform (UWP)
How to set status of control from OnLaunched in C++/WinRT app?
In Visual Studio I compiled the blank C++/WinRT UWP app which displays a button that says "Click me" and "Clicked" after it is clicked. As an experiment to learn how to initialize a control according to user settings, I copied the…
Developer technologies | Universal Windows Platform (UWP)
Unable to publish with fulltrustprocess and Multiple instances of UWP app
UWP experts , There are three components here. Main UWP app with multiple instances supported through package manifest - C# UWP FullTrustprocess that acts as the appserviceconnection server - C# .NET 8 WAPP Package that bundles UWP app and…
Developer technologies | Universal Windows Platform (UWP)
Developer technologies | C#

UWP BLE not working for authenticated attributes
I can't write to the CCCD on a BLE device that has the authentication flag enabled on the CCCD
Developer technologies | Universal Windows Platform (UWP)
How to implement text as HyperLink in Toast windows using xml?
I am trying to implement the Hyperlink in windows toast which accepts xml as a string as per the documents i couldn't find a way to implement hyperlink in text Example: I need to display a text in toast as: To get more details. click here …
Developer technologies | Universal Windows Platform (UWP)

System.Runtime.WindowsRuntime Exception
Exception thrown: 'System.IO.FileLoadException' in BasicCoreApp.exe An exception of type 'System.IO.FileLoadException' occurred in BasicCoreApp.exe but was not handled in user code Could not load file or assembly 'System.Runtime.WindowsRuntime,…
Developer technologies | Universal Windows Platform (UWP)

How to customize a caret of TextBox in UWP?
I want to make customized TextBox and I don't know how to customize the caret in UWP. I thought of these ways to make it: Change the style of the original caret directly Use a rectangle and let it blink, but how to hide the original caret or how to…
Developer technologies | Universal Windows Platform (UWP)
What is the name of the taskbar executable(s)?
I'm building a UWP app in which a user can remotely close apps on a device with a receiving agent. The agent only allows apps that it receives by executable name from the UWP app. I'm trying to allow the taskbar to not be closed, by adding apps like…
Developer technologies | Universal Windows Platform (UWP)
