在定义Windows API常量值时,将它们定义为const是否更好?
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 );
或将它们作为枚举类型进行分组。
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 );
enum
版本,但是名称上不需要冗余的前缀:public enum SW { HIDE = 0, SHOWNORMAL = 1 ... etc.
。至少要遵循DRY原则,消除(可能存在的)一整类错误或混淆(SW.SX_MODE == ???
)。 - Glenn Slayden