[Bug 19495] New: DialogBox() returns -1 for Invalid Window Handle, Should Be 0

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=19495

           Summary: DialogBox() returns -1 for Invalid Window Handle,
                    Should Be 0
           Product: Wine
           Version: 1.1.26
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: user32
        AssignedTo: wine-bugs at winehq.org
        ReportedBy: robertgonder at embarqmail.com


DialogBox( hInstance, MAKEINTRESOURCE(MyDlg), NULL, MyDlgProc )
returns -1 (AFTER the dialog has completed correctly!)
GetLastError() returns 1400 (Invalid Window Handle).
NULL is the window handle, meaning the desktop is the owner.

According to the MS docs here
http://msdn.microsoft.com/en-us/library/ms645452(VS.85).aspx
"If the function fails because the hWndParent parameter is invalid, the return
value is zero."

I can work around this, but it might be causing problems in commercial
software.

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