[resend 1/8] reg: Add system error printing function

[Alexandre Julliard]

Stefan Dösinger <stefandoesinger at gmail.com> writes:

> Am 2015-02-17 um 10:56 schrieb Alexandre Julliard:
>> I don't think that's an improvement. There may be a need for
>> generic Win32 error printing through FormatMessage for unknown
>> codes, but I don't see why you'd want to route all errors through
>> it. In particular, having to make up your own Win32 error codes
>> only to convert them back to string ids is quite ugly.
> This kind of setup was originally my idea, so I might as well answer
> this question myself:
>
> The basic plan is to let the advapi32 do as much of the error checking
> as possible and use the return value from the Reg* functions to tell
> the user what went wrong. There are a handful of failure modes that
> only apply to reg.exe and not advapi32 - in particular the currently
> unimplemented remote access and trailing backslashes.

I'm not sure that's a good idea either. It forces you to use generic
error messages that are usually not very informative. It's better to do
things in a way that allows printing more detailed errors in cases that
are found to be confusing to users.

-- 
Alexandre Julliard
julliard at winehq.org