[Bug 12226] New: DrawTextA/W + DT_CALCRECT + Empty String returns 0

http://bugs.winehq.org/show_bug.cgi?id=12226

           Summary: DrawTextA/W + DT_CALCRECT + Empty String returns 0
           Product: Wine
           Version: 0.9.58.
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: user32
        AssignedTo: wine-bugs(a)winehq.org
        ReportedBy: J.Duttke(a)web.de


If I call DrawTextA or DrawTextW to calculate the dimensions of a string, the
return value of Wine is 0, if the string is empty.
In Windows, the height of a single line get returned in such a case.

0 is the value which indicate that the function failed, but since it did not
failed in Wine, it should not return 0.

That's how I can reproduce it in VB6:
Dim s As String
Dim r As RECT

MsgBox DrawTextA(Me.hDC, s, -1, r, DT_CALCRECT Or DT_LEFT Or DT_SINGLELINE)


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