[Bug 9969] New: OPAS shows error boxes when hovering over calendar item

http://bugs.winehq.org/show_bug.cgi?id=9969

Summary: OPAS shows error boxes when hovering over calendar item
           Product: Wine
           Version: 0.9.46.
          Platform: Other
        OS/Version: other
            Status: NEW
          Severity: normal
          Priority: P2
         Component: wine-misc
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

When hovering over a calendar item OPAS hows a popup tooltip with a some more
information about the event. On Wine this popup is also shown but then a dialog
informs about Visual FoxPro errors (property not found, field not found). This
bug is even when using native dcom98, msvcrt, shlwapi and other DLLs that could
be easily substituted.

A thing that I have found is that on Windows the tooltip seems not to take the
focus from the window while on Wine WM_KILLFOCUS and WM_SETFOCUS messages are
sent to transfer the focus to the tooltip. On the next WM_MOUSEMOVE the error
occurs.