Rewrite Windows image attachments to use WIC instead of GDI+.#1254
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This PR shifts our support for Windows image attachments onto WIC (Windows Imaging Component) instead of GDI+, which is an older API that supports fewer types of image object.
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stmontgomery
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Aug 7, 2025
stmontgomery
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I've asked @compnerd to review as well before I merge this PR. |
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Note to self: copy HBITMAP/HICON instead of risking UAF—use https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-copyimage |
…fe consumption pattern)
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compnerd
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| // Create the frame into which the bitmap will be composited. | ||
| var frame: UnsafeMutablePointer<IWICBitmapFrameEncode>? | ||
| var propertyBag: UnsafeMutablePointer<IPropertyBag2>? |
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properties might be a better name.
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Do you feel strongly about it?
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…ling HBITMAP reference
…leValue', conditionally expose an imageFormat property on Attachment
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This PR shifts our support for Windows image attachments onto WIC (Windows Imaging Component) instead of GDI+, which is an older API that supports fewer types of image object.
This change also removes the dependency on C++ interop from the WinSDK overlay module, which could have prevented it from being used by modules that don't have C++ interop enabled.
Yes,
obj.pointee.lpVtbl.pointee.Release(obj)is how you spell it.Checklist: