WPF (Windows Presentation Foundation)は
オワコンだと思う？

https://learn.microsoft.com/ja-jp/dotnet/desktop/wpf/overview/media/index/template-button.png
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https://learn.microsoft.com/ja-jp/dotnet/desktop/wpf/overview/media/index/markup-window-button-clicked.png
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https://visualstudio.microsoft.com/wp-content/uploads/2016/05/Design-1.png
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https://p.e-words.jp/img/Windows-Presentation-Foundation.png
https://mwaik.wordpress.com/wp-content/uploads/2012/03/wpftracker.png
http://blog.andreweichacker.com/wp-content/uploads/2008/09/designer.jpg