Consistently return HassleError
and remove unneeded check macros
#30
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Depends on #29
Our public API becomes a lot cleaner when returning
HassleError
everywhere, helped by the fact thatHRESULT
s from the low-level COM API is a newtype with support for functions to convert toResult<>
easily. These can be short-circuit-returned in a more Rust'y way through the questionmark operator instead of wrapping everything in large macro calls. This change is based on a similar approach in the Ash crate: https://github.com/MaikKlein/ash/pull/339/files