Allow attaching an IWICBitmapSource instance directly.#1266
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This PR adjusts the experimental WIC bitmap attachment support I recently added so that a test author can attach an instance of `IWICBitmapSource` (which is the parent type of the already-supported `IWICBitmap`.) Protocols and conformances are adjusted to match. I could have left the protocols as-is, but then you'd have to convert an `IWICBitmapSource` to an `IWICBitmap` (by allocating a new COM object) then cast it back to an `IWICBitmapSource` (by calling `QueryInterface()` and juggling the refcount) in order to actually attach it.
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stmontgomery
approved these changes
Aug 13, 2025
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This PR adjusts the experimental WIC bitmap attachment support I recently added so that a test author can attach an instance of
IWICBitmapSource(which is the parent type of the already-supportedIWICBitmap.) Protocols and conformances are adjusted to match.This PR then explicitly adds conformances to every COM class in WIC that subclasses
IWICBitmapSourcesince we can't see COM class inheritance in Swift (yet?)I could have left the protocols as-is, but then you'd have to convert an
IWICBitmapSourceto anIWICBitmap(by allocating a new COM object) then cast it back to anIWICBitmapSource(by callingQueryInterface()and juggling the refcount) in order to actually attach it.Checklist: