clion qt导出dll给别的项目用

clion 导出dll给别的项目用，并且引入matplotcpp

dll生成一个mydll的dll文件

1.先做一个简单dll的测试下

cmake_minimum_required(VERSION 3.26)
project(untitled)
set(CMAKE_CXX_STANDARD 11)
add_library(untitled SHARED main.cpp)

main.h

cpp 复制代码

void hello();

main.cpp

cpp 复制代码

void hello()
{
    std::cout << "Hello, mylib!" << std::endl;
}

ctrl+f9生成构建到目录下,生成libuntitled.dll

2.生成mydll用controller.cpp测试

cmake_minimum_required(VERSION 3.26)
project(mydll)
set(CMAKE_CXX_STANDARD 11)
add_library(mydll SHARED controller.cpp)

controller.cpp

cpp 复制代码

#include "controller.h"

Controller::Controller(float _a_dist) : a_dist(_a_dist) {
     
}

controller.h

cpp 复制代码

#include <vector> 

class Controller {
private: 
    float a_dist; 

public:
    Controller(float a_dist_ = 1.0);
    ~Controller() = default;
};

生成libmydll.dll

3.clion调用

cpp 复制代码

cmake_minimum_required(VERSION 3.26)
project(testpython)

set(CMAKE_CXX_STANDARD 11)

##python h， python数学计算
include_directories(D:\\app\\dev\\Python37\\include
        D:\\app\\dev\\Python37\\Lib\\site-packages\\numpy\\core\\include)

##python lib 测试的dll
link_libraries(D:/app/dev/Python37/libs/python37.lib
        C:/Users/andyz/CLionProjects/untitled/cmake-build-debug/libmydll.dll
        C:/Users/andyz/CLionProjects/testdll/lib/libuntitled.dll)

add_executable(testpython main.cpp
        matplotlibcpp.h)

目录结构

cpp 复制代码

#include <iostream>
#include "Python.h"
#include "controller.h"
#include "matplotlibcpp.h"

namespace plt = matplotlibcpp;

void hello();

int main() {
    hello(); 

    float a_dist = 1; 

    Controller controller(a_dist);

    Py_Initialize();
    PyRun_SimpleString("print('hi python')");
    Py_Finalize();
    std::cout << "Hello, World!" << std::endl;
    return 0;
}

输出结果，一个是简单dll，一个是PyRun_SimpleString

4.qt生成的dll在vs 2022调用

参考这个文章https://blog.csdn.net/u010260855/article/details/22594191

cpp 复制代码

#if defined(LOS_LIBRARY)
#define ADD_EXPORTS _declspec(dllexport)
#else
#define  ADD_EXPORTS _declspec(dllimport)
#endif
class ADD_EXPORTS add
{
public:
	add(void);
	~add(void);
	static int myadd(int a, int b)
	{
		return a+b;
	}
};

cpp 复制代码

#ifndef ADD_EXPORTS
#define ADD_EXPORTS//这个宏的名称与头文件中要一致
#endif
 
 
#include "add.h"
add::add(void)
{
}
add::~add(void)
{
}

代码目录需要放置los.dll