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C++ WinUI 3 Sample Application

A packaged WinUI 3 app written in C++/WinRT with a XAML UI. The project is the Visual Studio WinUI Blank App (Packaged) template (.vcxproj + packages.config), with a button that shows the app's package identity.

Prerequisites

  • Visual Studio or Build Tools for Visual Studio with the Desktop development with C++ workload and C++ WinUI app development tools
  • The Windows SDK (installed with the workload)

Building and Running

Point winapp run at the project (or this folder). It restores the NuGet packages, builds with Visual Studio's MSBuild, registers the build output as a loose-layout package, and launches it:

# Build + run in one step
winapp run .

# Launch detached for automation
winapp run .\CppWinUIApp.vcxproj --detach --json

# Run the existing build without rebuilding
winapp run . --no-build

Click Show package identity to see the package family name the app is running under.

Testing with winapp ui

winapp ui invoke "Show package identity" -a CppWinUIApp
winapp ui search "Package family name" -a CppWinUIApp