Interop C# APIs for WinUI 3

As a C# desktop application developer, in .NET you can make use of C# interop classes whose methods wrap and represent several interoperability functions. These include methods of C# classes representing the GetWindowIdFromWindow function, for example.

These C# interop classes are available in .NET as part of the Windows App SDK.

Topics in this section

Topic	Description
Microsoft.UI namespace	C# interop classes in the Microsoft.UI namespace.

See also

• Call interop APIs from a .NET app