This .NET enum wraps the ObjectARX enum AcGiVisualStyleOperations::Operation.

Public Enum VisualStyleOperation
  Disable = 2
  Enable = 3
  Inherit = 0
  InvalidOperation = -1
  Set = 1
End Enum

public enum VisualStyleOperation {
  Disable = 2,
  Enable = 3,
  Inherit = 0,
  InvalidOperation = -1,
  Set = 1
}