Is there an example of using OpenGL within a Windows App? Perhaps similar to OpenTK.GlWpfControl.

[ToolmakerSteve]

Migrating a cross-platform OpenGL app to .Net 8.
On Windows, we targeted Xamarin.WPF.
All we need is to get the client area of a window. To render OpenGL to.

How can we do this on Windows under .Net 8?

Ideally without dependency on Maui, but would consider that. The deprecation of OpenGLView in Maui does not give me confidence in that approach.

[castorix]

You can use CreateWindowEx (like I did in some samples such ContainerPanel.xaml.cs to host Win32 controls
I had tested with OpenGL (wglCreateContext and so on) but it was slower than same code in WPF/Winforms or with Direct2D (maybe I had missed something...))

[anose001]

Interested in different options here as well

[castorix]

Interested in different options here as well

There is WGL_NV_DX_interop2, which maybe could be used to draw in a SwapChainPanel, but it does not work on my old PC with Intel HD Graphics adapter (wglDXRegisterObjectNV fails with ERROR_OPEN_FAILED)
Only a classic CreateWindowEx works for me (I can get same performance as in Winforms or C++/Win32 by changing some parameters)