Winui3 Convert/Port C++/Winrt UWP application to WinUI3 compitable.

MM, Sunil 86

HI Team,

Could you please help us to Convert/Port C++/Winrt UWP application to WinUI3 compatible.

Best Regards,
Sunil

1 answer

Nico Zhu (Shanghai Wicresoft Co,.Ltd.) 12,851 Reputation points

2021-12-30T06:04:02.507+00:00

Hello,
Welcome to Microsoft Q&A!

Could you please help us to Convert/Port C++/Winrt UWP application to WinUI3 compatible.

I have to say there is no tool to convert winrt UWP application to WinUI3 directly, you need to port your code manually include user interface (UI) code, and here is document about migration notice.

Thank you.

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Sunil A M 171 Reputation points

2021-12-30T06:11:59.097+00:00

Hi Team,

Thanks for the reply,

I was using the below link technique to convert C++/Winrt UWP application to nuget package using the C# projection.
Can i continue with this technique?
https://learn.microsoft.com/en-us/windows/uwp/csharp-winrt/net-projection-from-cppwinrt-component

Note: My requirement is to use/refer C++/Winrt UWP application to WInUI3 application.

Nico Zhu (Shanghai Wicresoft Co,.Ltd.) 12,851 Reputation points

2021-12-30T09:14:32.027+00:00

WinUI3 can only create production desktop apps that target Windows 10 and later. if your previous app is UWP, you need to use WinUI2 nuget package to migrate User interface, for more please refer this document.

Sunil A M 171 Reputation points

2022-01-03T09:47:11.847+00:00

HI Team,

I am trying to create a nuget package using the C# projection by referring this below link.
https://learn.microsoft.com/en-us/windows/uwp/csharp-winrt/net-projection-from-cppwinrt-component

In that above link they have explained everything using .net core app.

But in my case, the project which i wanted to create a C# projection is on .net framework and class library(UWP).
Could you please guide me how to create a nuget package for the above case.

Ex:

Sunil A M 171 Reputation points

2022-01-06T08:03:40.683+00:00

Hi Team,

We have been using the below method to convert the C++/WinRT UWP to .net projection nuget package.
https://learn.microsoft.com/en-us/windows/uwp/csharp-winrt/net-projection-from-cppwinrt-component

The projection C# project is building successfuly with below error.

We are able to generate the nuget package also, But nuget package namespace is not at all accessible when we have the reference of that nuget package.

Please look into this on priority.
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