VC++ 静态DLL模板-导出类

1、VS2003新建DLL项目dllTest

 

2、项目dllTest中添加脚本point.h,代码如下：

#ifndef POINT_H
#define POINT_H

#ifdef DLL_FILE
class _declspec(dllexport) point  //导出类point
#else
class _declspec(dllimport) point  //导入类point
#endif
{
public:
    float y;
    float x;
    point();
    point(float x_coordinate,float y_coordinate );
};

#endif 

3、项目dllTest中添加脚本circle.h,代码如下：

#ifndef CIRCLE_H
#define CIRCLE_H

#include "point.h"    
#ifdef DLL_FILE
class _declspec(dllexport) circle  //导出类circle
#else
class _declspec(dllimport) circle  //导入类circle
#endif
{
public:
    void SetCentre(const point &centrePoint);
    void SetRadius(float r);
    float GetGirth();
    float GetArea();
    circle();
private:
    float radius;
    point centre;
};

#endif 

4、项目dllTest中添加脚本point.cpp,代码如下：

#ifndef DLL_FILE
#define DLL_FILE
#endif

#include "point.h"

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

point::point()
{
}
point::point(float x_coordinate,float y_coordinate)
{
    x = x_coordinate;
    y = y_coordinate;
}

5、项目dllTest中添加脚本circle.cpp,代码如下：

#ifndef DLL_FILE
#define DLL_FILE
#endif
 
#include "circle.h"
#define PI 3.1415926
circle::circle ()
{
   centre = point(0,0);
   radius = 0;
}
float circle::GetArea()
{
    return PI*radius*radius;
}
float circle::GetGirth()
{
    return 2*PI*radius;
}
void circle::SetCentre(const point &centrePoint)
{
    centre = centrePoint;
}
void circle::SetRadius(float r)
{
    radius = r;
}

6、build生成dllTest.dll文件

7、添加检测项目dllCall

8、添加主程序脚本dllCall.cpp,代码如下：

#include "stdafx.h"
#include <windows.h>
#include "..circle.h"

#pragma comment(lib,"..\Debug\dllTest.lib");
 
int main(int argc, char* argv[])
{
    circle c;
    point p(2.0,2.0);
    c.SetCentre(p);
    c.SetRadius(1.0);
    printf("area:%f
girth:%f
",c.GetArea(),c.GetGirth());
    
    return 0;
}

9、Ctrl+F5调试运行结果如下：