when Wpf cross-platform
WPF is built on DirectX and other Windows API which are not available on other platforms and "will remain in Windows", see https://devblogs.microsoft.com/dotnet/net-core-3-and-support-for-windows-desktop-applications/
WPF is built on OpenGL???
As sad by @miloush, WPF is built primary on DirectX technology and so will remains available only for Windows operating system
@ourplan9000 there is no plan for WPF to be cross-plat. https://github.com/AvaloniaUI/Avalonia is a cross-plat WPF inspired framework that might be worth checking out.
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@ourplan9000 there is no plan for WPF to be cross-plat. https://github.com/AvaloniaUI/Avalonia is a cross-plat WPF inspired framework that might be worth checking out.