This .NET class wraps the AttachmentPoint ObjectARX enum. It represents the attachment point positions of an MText object.

Public Enum AttachmentPoint
  BaseAlign = 13
  BaseCenter = 11
  BaseFit = &H11
  BaseLeft = 10
  BaseMid = &H15
  BaseRight = 12
  BottomAlign = 14
  BottomCenter = 8
  BottomFit = &H12
  BottomLeft = 7
  BottomMid = &H16
  BottomRight = 9
  MiddleAlign = 15
  MiddleCenter = 5
  MiddleFit = &H13
  MiddleLeft = 4
  MiddleMid = &H17
  MiddleRight = 6
  TopAlign = &H10
  TopCenter = 2
  TopFit = 20
  TopLeft = 1
  TopMid = &H18
  TopRight = 3
End Enum

public enum AttachmentPoint {
  BaseAlign = 13,
  BaseCenter = 11,
  BaseFit = 0x11,
  BaseLeft = 10,
  BaseMid = 0x15,
  BaseRight = 12,
  BottomAlign = 14,
  BottomCenter = 8,
  BottomFit = 0x12,
  BottomLeft = 7,
  BottomMid = 0x16,
  BottomRight = 9,
  MiddleAlign = 15,
  MiddleCenter = 5,
  MiddleFit = 0x13,
  MiddleLeft = 4,
  MiddleMid = 0x17,
  MiddleRight = 6,
  TopAlign = 0x10,
  TopCenter = 2,
  TopFit = 20,
  TopLeft = 1,
  TopMid = 0x18,
  TopRight = 3
}