POINT和CPoint有甚么区别！？-实例分析-华软网

C/C++ code
//POINT是个简单的结构
typedef struct tagPOINT
{
    LONG  x;
    LONG  y;
} POINT, *PPOINT, NEAR *NPPOINT, FAR *LPPOINT;

//CPoint类复杂一些
class CPoint : public tagPOINT
{
public:
// Constructors

    // create an uninitialized point
    CPoint();
    // create from two integers
    CPoint(int initX, int initY);
    // create from another point
    CPoint(POINT initPt);
    // create from a size
    CPoint(SIZE inITSize);
    // create from a dword: x = LOWORD(dw) y = HIWORD(dw)
    CPoint(DWORD dwPoint);

// Operations

// translate the point
    void Offset(int xOffset, int yOffset);
    void Offset(POINT point);
    void Offset(SIZE size);

    BOOL operator==(POINT point) const;
    BOOL operator!=(POINT point) const;
    void operator+=(SIZE size);
    void operator-=(SIZE size);
    void operator+=(POINT point);
    void operator-=(POINT point);

// Operators returning CPoint values
    CPoint operator+(SIZE size) const;
    CPoint operator-(SIZE size) const;
    CPoint operator-() const;
    CPoint operator+(POINT point) const;

// Operators returning CSize values
    CSize operator-(POINT point) const;

// Operators returning CRect values
    CRect operator+(const RECT* lpRect) const;
    CRect operator-(const RECT* lpRect) const;
};
    .
编程论坛　5　个网友回答： MSDN上都有。    .
编程论坛　6　个网友回答： Point 是个结构

C/C++ code
typedef struct tagPOINT
{
    LONG  x;
    LONG  y;
} POINT, *PPOINT, NEAR *NPPOINT, FAR *LPPOINT;

CPoint 是封装的一个类

C/C++ code
class CPoint : public tagPOINT
{
…………
}

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