can not find the _winrt.pyd

[cjw1115]

When I try to build the pywinrt.exe myself, I didn't get the file _winrt,pyd.
Then I download the latest winrt in pip, the package contains the _winrt.pyd.

So I have two questions

1. how _winrt.pyd is generated?
2. Can I use pywinrt.exe to convert my own winrt component so that I can use it in python?

Thanks

[dlech]

Here is how I build the bindings:

1. Build the bindings generator (pywinrt.exe). This is a program that generates C++ code based on WinRT metadata.

   cd src\scripts\windows
   vsdevcmd-build.cmd
   

2. Set up a VS 2019 x64 dev environment in Power Shell.

   Import-Module "${env:ProgramFiles(x86)}\Microsoft Visual Studio\2019\Community\Common7\Tools\Microsoft.VisualStudio.DevShell.dll"
   Enter-VsDevShell -VsInstallPath "${env:ProgramFiles(x86)}\Microsoft Visual Studio\2019\Community" -DevCmdArguments '-arch=x64'
   

3. In the dev environment, run the generate and build scripts.

   cd src\package\pywinrt\projection
   .\generate.ps1
   .\build.ps1
   

generate.ps1 uses cppwinrt.exe (from NuGet) and pywinrt.exe (that we built) to generate C++ code that gets compiled by the build.ps1 script.

There is a -fullProjection argument for generate.ps1 to build all of the WinRT modules, otherwise just a select few are built.

I'm not sure what would be required to bind your own component, but if cppwinrt can do it, pywinrt can probably do it too.

[cjw1115]

Thank you @dlech
Now I can build the whole py/winrt module on my device, got a correct _winrt.pyd.
And I also try to call some winrt API from my test python script, it works well!

[cjw1115]

Under the help of @dlech , I can projection my own winmd file, it works. But a expected error "Class not registered" is thrown in runtime.
In win32 or .Net framework project, we can try to add manifest to indicate our COM dll, but in python, I don't know how to do that.
Do you have any idea? Thanks!

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