[Bug 6829] New: COMDLG32: wrong return value of CommDlgExtendedError after GetOpenFileName

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=6829

Summary: COMDLG32: wrong return value of CommDlgExtendedError
                    after GetOpenFileName
           Product: Wine
           Version: 0.9.26.
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: wine-comctl32
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]
                CC: [e-mail]

When the GetOpenFileName dialog is "Cancel"led a subsequent call to 
CommDlgExtendedError returns 4104 instead of 0

Platform SDK says:
> CommDlgExtendedError Function
>
> The CommDlgExtendedError function returns a common dialog box error code. 
> This code indicates the most recent error to occur during the execution of 
> one of the common dialog box functions. These error codes are defined in 
> Cderr.h.
>
> Syntax
>
> DWORD CommDlgExtendedError(VOID);
> Return Value
>
> If the most recent call to a common dialog box function succeeded, the return 
> value is undefined.
>
> If the common dialog box function returned FALSE because the user closed or 
> canceled the dialog box, the return value is zero. Otherwise, the return 
> value is a nonzero error code. For more information, see the following 
> Remarks section.