What's the best way to implement a render loop?

[drewcrawford]

I'm wondering about the best practice for implementing a render loop. This is for real-time drawing, there's a function that draws a frame at a fast speed and I need to figure out how to call it in a loop while responding to UI events.

I found a discussion of the problem here for UWP, which is I guess a historical approach. That guide has various solutions of the form Dispatcher.ProcessEvents(...).

However, the WinUI documentation says this was deprecated. The new API DispatcherQueue does not seem to have an analogous function.

I also turned up this spec which seems to outline a solution based on GetMessageW and DispatchMessageW. I implemented that here but it seems incorrect. The cursor locks over the window and it can only be resized intermittently.

Would appreciate any pointers to how to fix this or better patterns to use.