QTCreater调用MatLab生成的.dll文件

软件:
MATLAB R2021b
Qt Creator 4.12.2 (Community)

1、Matlab部分
定义matlab函数:

function ans = FUNAdd(x,y)
    ans = x + y;
end
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mbuild -setup
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选择 mex -setup C++ -client MBUILD
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输入 deploytool 选择 Libary Complier
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选择要编译的.m文件
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选择Package 进行打包
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将文件夹内的 .dll .h .lib文件复制出来
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2、QTCreater部分

新建项目->选择MinGW 64-bit
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将matlab生成的.lib .h .dll放到创建的QTCreater项目文件下
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添加外部库
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INCLUDEPATH += 'F:/Program Files/MATLAB/R2021b/extern/include'
INCLUDEPATH += 'F:/Program Files/MATLAB/R2021b/extern/include/win64'

win32: LIBS += -L'F:/Program Files/MATLAB/R2021b/extern/lib/win64/mingw64/' -llibmex
win32: LIBS += -L'F:/Program Files/MATLAB/R2021b/extern/lib/win64/mingw64/' -llibmx
win32: LIBS += -L'F:/Program Files/MATLAB/R2021b/extern/lib/win64/mingw64/' -llibmat
win32: LIBS += -L'F:/Program Files/MATLAB/R2021b/extern/lib/win64/mingw64/' -llibeng
win32: LIBS += -L'F:/Program Files/MATLAB/R2021b/extern/lib/win64/mingw64/' -lmclmcr
win32: LIBS += -L'F:/Program Files/MATLAB/R2021b/extern/lib/win64/mingw64/' -lmclmcrrt

INCLUDEPATH += 'F:/Program Files/MATLAB/R2021b/extern/lib/win64/mingw64'
DEPENDPATH += 'F:/Program Files/MATLAB/R2021b/extern/lib/win64/mingw64'
INCLUDEPATH += 'F:/Program Files/MATLAB/R2021b/extern/lib/win64'
DEPENDPATH += 'F:/Program Files/MATLAB/R2021b/extern/lib/win64'


***F:/Program Files/MATLAB/R2021b/***  
换成自己的Matlab路径
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右键->添加现有文件
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执行 构建->执行qmake
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构建主函数代码:
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#include  //引入头文件
#include 
#include 
#include 
#include 
#include 
using namespace std;
int main(int argc, char *argv[])
{
    if (!FUNAdd_NextInitialize()){ //初始化
        return -1;
    }

    QLibrary lib("FUNAdd_Next.dll"); //利用QLibrary加载.dll文件

    //定义变量
    mwArray x(1,1,mxDOUBLE_CLASS);

    mwArray y(1,1,mxDOUBLE_CLASS);
    x=205;
    y=15;
    mwArray ans(1,1,mxDOUBLE_CLASS);
    //输出参数个数,输出参数,输入参数。
    FUNAdd(1,ans,x,y);

    if (lib.load())
    {

       cout<<"success"<<endl;
       cout<<"x: "<<x<<endl;
       cout<<"y: "<<y<<endl;
       cout<<"ans: "<<ans<<endl;
    }
    else
    {
        cout<<"failed"<<endl;
    }

    return 0;
}

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想要查看函数的参数 可以ctrl+点击函数
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