namespace Microsoft.Win32 { //SelectClipRgn返回值定义 public static partial class NativeMethods { /// /// 发生错误(以前的剪切区域不受影响) /// public const int ERROR = 0; /// /// 区域为空 /// public const int NULLREGION = 1; /// /// 区域为单个矩形 /// public const int SIMPLEREGION = 2; /// /// 区域为多个矩形 /// public const int COMPLEXREGION = 3; /// /// 发生错误(以前的剪切区域不受影响) /// public const int RGN_ERROR = ERROR; } }