Re: [PATCH v3 0/1] MR7479: wow64win: change parameter types from LONG to ULONG in wow64_NtUserMessageCall

[Rémi Bernon (＠rbernon)]

It's difficult to say for sure, as it might depend on what wparam/lparam are meant for, and if lparams is supposed to be a signed integer, we need to sign extend it.

Maybe a safe choice here would be to use the WPARAM/LPARAM types instead, which would avoid sign-extending wparam as WPARAM is unsigned, but still sign extend lparam.

Which message are you seeing this with?