[Retained] parameters need to project as pointer #1522
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manodasanW
approved these changes
Nov 3, 2025
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Per discussion in #1066 and microsoft/win32metadata#1792, a new [Retained] attribute was added in win32 metadata to help indicate that a parameter will outlive the method call.
The best way we have to communicate that is to always type the parameter as a pointer so that at least the caller has to think about the lifetime of the pointer existing beyond the life of the method call.