Microsoft Project Reunion unifies the existent APIs

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by Claudiu Andone 

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Key notes

  • In March 2020, Microsoft crossed the line of 1 billion devices running Windows 10. And we're talking about active devices. Users are spending more than 4 trillion minutes on Windows 10 a month, a 75% increase year-over-year.
  • The whole big thing about Project Union is to unify access to the existing Win32 and UWP APIs and take them out from the operating system. 
  • Read all our articles about the biggest event of the year in our Microsoft Build 2020 Hub.
  • Developers are the happiest with the Microsoft Build event. Get all news about developer tools in our Developer Tools section.
New Microsoft Project Union

In March 2020, Microsoft crossed the line of 1 billion devices running Windows 10. And we’re talking about active devices.

And now, with the Coronavirus pandemy, according to Microsoft, users are spending more than 4 trillion minutes on Windows 10 a month, a 75% increase year-over-year.

It’s really easy to understand why Microsoft wants to make it easier for developers to create more apps for Windows 10.

Project Reunion unifies the Win32 and UWP

The whole big thing about Project Union is to unify access to the existing Win32 and UWP APIs and take them out from the operating system. 

We’re bringing together the combined power of Win32 and UWP, so developers no longer have to choose, because we’re unifying these existing APIs, decoupling them from the OS. And so the developers are confident that as they use these APIs, they will work across all of Windows.

And Project Reunion allows developers to not only modernize their app so it runs efficiently, locally, on a physical Windows machine, but it can also deliver a great experience when streamed from the cloud.

And so you’re now running Windows, not only on Windows, but iOS and Android and Mac and Linux from the cloud.

, explained Kevin Gallo, Vice President, Windows Developer Platform at Microsoft during Microsoft Build 2020.

Project Reunion components

Right now, Project Reunion has only two components. One is WinUI 3 Preview 1, the latest preview version of Microsoft’s user interface framework for Windows.

The other is a new preview of WebView2, which allows the developers to embed a Chromium-based WebView into Windows Forms, WPF and UWP/WinUI 3 apps. 

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More about the topics: Microsoft Build 2020

Claudiu Andone

Claudiu Andone Shield

Windows Toubleshooting Expert

Oldtimer in the tech and science press, Claudiu is focused on whatever comes new from Microsoft. His abrupt interest in computers started when he saw the first Home Computer as a kid. However, his passion for Windows and everything related became obvious when he became a sys admin in a computer science high school. With 14 years of experience in writing about everything there is to know about science and technology, Claudiu also likes rock music, chilling in the garden, and Star Wars. May the force be with you, always!

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