如何对Windows API常量进行分组

public const int SW_HIDE = 0;
public const int SW_SHOWNORMAL = 1;
public const int SW_NORMAL = 1;
public const int SW_SHOWMINIMIZED = 2;
public const int SW_SHOWMAXIMIZED = 3;
public const int SW_MAXIMIZE = 3;
public const int SW_SHOWNOACTIVATE = 4;
public const int SW_SHOW = 5;
public const int SW_MINIMIZE = 6;
public const int SW_SHOWMINNOACTIVE = 7;
public const int SW_SHOWNA = 8;
public const int SW_RESTORE = 9;
public const int SW_SHOWDEFAULT = 10;
public const int SW_MAX = 10;

[DllImport( "user32.dll" )]
public static extern bool ShowWindow( HandleRef hWnd, int nCmdShow );

或将它们分组为一个枚举。

public enum SW {
  SW_HIDE = 0,
  SW_SHOWNORMAL = 1,
  SW_NORMAL = 1,
  SW_SHOWMINIMIZED = 2,
  SW_SHOWMAXIMIZED = 3,
  SW_MAXIMIZE = 3,
  SW_SHOWNOACTIVATE = 4,
  SW_SHOW = 5,
  SW_MINIMIZE = 6,
  SW_SHOWMINNOACTIVE = 7,
  SW_SHOWNA = 8,
  SW_RESTORE = 9,
  SW_SHOWDEFAULT = 10,
  SW_MAX = 10
}

[DllImport( "user32.dll" )]
public static extern bool ShowWindow( HandleRef hWnd, SW nCmdShow );