控件中的CAD颜色索引枚举

[uuid(7678A357-0465-4845-A357-BB38F81A9E52), helpstring("Predefined Colors")]
enum McColor {
  mcByBlock = 0,
  mcRed = 1,
  mcYellow = 2,
  mcGreen = 3,
  mcCyan = 4,
  mcBlue = 5,
  mcMagenta = 6,
  mcWhite = 7,
  mcByLayer = 256
};