LottieGen for Cppwinrt and WinUI version 3

[torleifat]

Hi,

I've been trying to use Lottiegen so I can play lottie-files in c++/winrt WinUI3 project. For this test I have been using the LottieLogo1.json file.

So LottieGen does create files that compile (mostly, a couple of places the generated code had treated a function call like it was a property). And once compiled the page xaml recognizes the generated type as a valid source for an AnimatedVisualPlayer. But when running the application no animation is played.

For C# I can generate and play (a few tweaks to the generated code again due to some casts being done that Win2d did not like).

Parameters used:
C++: LottieGen.exe -InputFile .\LottieLogo.json -L cppwinrt -WinUIVersion 3.0
C#: LottieGen.exe -InputFile .\LottieLogo.json -L cs -WinUIVersion 3.0

Has anyone had any luck getting C++/winrt files to play?