How to use in a Console app with net5.0-windows10.0.19041.0

[jdluzen]

I'm attempting to use Win2D because I need something that implements IDirect3DSurface so that I can process video frames written to it. (Related question here https://stackoverflow.com/questions/67011957/how-to-get-decoded-video-frames-using-winrt-in-net5)

I've tried to use the following which is directly taken from a test in this repo:

            var device = new CanvasDevice();
            var rt = new CanvasRenderTarget(device, 16, 16, 96);

But I get the following exception: Specified cast is not valid.

   at System.Runtime.InteropServices.Marshal.ThrowExceptionForHR(Int32 errorCode)
   at WinRT.IObjectReference.As[T](Guid iid)
   at WinRT.IObjectReference.As(Guid iid)
   at Microsoft.UI.Xaml.DependencyObject..ctor(IObjectReference objRef)
   at Microsoft.Graphics.Canvas.CanvasBitmap..ctor(IObjectReference objRef)
   at Microsoft.Graphics.Canvas.CanvasRenderTarget..ctor(IObjectReference objRef)
   at Microsoft.Graphics.Canvas.CanvasRenderTarget..ctor(ICanvasResourceCreator resourceCreator, Single width, Single height, Single dpi)
   at <my app>.FrameAvailable(MediaPlayer sender, Object args) in <my console app>\WmfFrameSource.cs:line 87

#813 is likely related.
I have tried #707 (comment), Microsoft.Graphics.Win2D, and #735 (comment).

[getrou]

I believe it is an issue with cswinrt that prevents CanvasBitmap and CanvasRenderTarget from working in net5.0 right now.
The issue tracking this is here: microsoft/CsWinRT#779

Once this issue is fixed CanvasBitmap and CanvasRenderTarget should start working.

[selastingeorge]

Is this issue fixed or still there, currently i was using win2d for WinUI but it also does not support anything related to CanvasGraphicsDevice