VC++课程设计 绘图

class CLine : public CObject//,public CRect { private: CPoint m_pt1; CPoint m_pt2; UINT m_nStyle; COLORREF m_nColor; UINT m_nSize; public: void Serialize(CArchive &ar); DECLARE_SERIAL(CLine) CLine(); virtual ~CLine(); CLine(UINT m_nStyle,COLORREF Color,UINT Size,CPoint pt1,CPoint pt2); void DrawLine(CDC *pDC); void DrawCircle(CDC *pDC); void DrawRectangle(CDC *pDC); };