[Bug 40301] New: Wrong DTM_GETRANGE message result

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=40301

            Bug ID: 40301
           Summary: Wrong DTM_GETRANGE message result
           Product: Wine
           Version: 1.8.1
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: comctl32
          Assignee: wine-bugs at winehq.org
          Reporter: vz-wine at zeitlins.org
      Distribution: ---

Looking at http://source.winehq.org/source/dlls/comctl32/datetime.c#1575 you
can see this line:

    return ret ? ret : 1; /* bug emulation */

I'm not sure which bug does it mean and the commit which added it (see
https://github.com/wine-mirror/wine/commit/63fe9d449#diff-60ef36c9d147674ec5485c265f23f417R958)
doesn't go into the details, but this behaviour seems to buggy as it returns
GDTR_MIN, implying that the minimum bound of the range is set, even when it is
not the case.

Currently this results in asserts when creating wxDatePickerCtrl from wxWidgets
with WINE (while it works correctly under native Windows) and while I'll work
around this in wxWidgets itself, I think this is still a bug in WINE and could
result in problems in the other applications as well and should be fixed in it.

The fix, of course, is trivial: just "return ret" (or avoid the temporary
variable and fold the return with the previous line).

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