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fix(thumbnailer-win): make the COM DLL compile on the MSVC target

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First real Windows build surfaced errors that a Linux host couldn't catch:

* Enable the missing `windows` feature gates (Win32_System_LibraryLoader,
  Win32_System_SystemServices, Win32_Security — the last brings in the
  `Ex` registry APIs) so the imports resolve.
* Depend on `windows-core`: the `#[implement]` macro expands to
  `windows_core::` paths, which need the crate nameable in the root.
* `IClassFactory::LockServer` takes `Win32::Foundation::BOOL`, not a
  `core` BOOL.
* Name the returned image type via a new `dwg_thumbnailer::RgbaImage`
  re-export instead of a direct `image` dependency.

Verified with `cargo check --target x86_64-pc-windows-gnu -p
dwg-thumbnailer-win` (and the native check still passes).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Hakan Seven 2026-07-11 02:11:22 +03:00
commit 3c57260ddb
4 changed files with 13 additions and 3 deletions
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@ -1428,6 +1428,7 @@ version = "0.1.0"
dependencies = [
"dwg-thumbnailer",
"windows 0.58.0",
"windows-core 0.58.0",
]
[[package]]