Windows: improve compatibility to build for UWP / Xbox

Feature or enhancement

Proposal:

• Add alternative UWP API functionality when available.
• Modernize the Windows code when there are alternatives that are also compatible with UWP.
• Add additional guards for Windows code that not builds for UWP.

The final goal is able to build for Xbox and reduce the patches required in Kodi --> Upstream some generic UWP patches here.

I propose upload small patches geared towards specific targets and always keeping current Windows functionality untouched.

Has this already been discussed elsewhere?

No response given

Links to previous discussion of this feature:

No response

Linked PRs

• gh-152383
• gh-152473
• gh-152477
• gh-152479
• gh-152601
• gh-152604
• gh-152688
• gh-152689
• gh-152694
• gh-152791
• gh-152792
• gh-152793
• gh-152797
• gh-152962
• gh-152998
• gh-153021
• gh-153036
• gh-153216
• gh-153700
• gh-154642
• gh-154700
• gh-154918
• gh-156972

首先检查已链接的 PR，尤其是与 Windows 和 UWP 相关的更改，以了解提案中的哪些部分已经涵盖。跟踪受 UWP API 替代方案和 build guards 影响的 Windows 代码路径。当 CPython 能够为 UWP/Xbox 构建，同时保留当前的 Windows 功能并减少下游补丁时，即视为完成。