enum System.Drawing.StringFormatFlags flags:

   def enum
      DirectionRightToLeft = 1
      DirectionVertical = 2
      FitBlackBox = 4
      DisplayFormatControl = 32
      NoFontFallback = 1024
      MeasureTrailingSpaces = 2048
      NoWrap = 4096
      LineLimit = 8192
      NoClip = 16384.

end enum.
