Matlab编译生成DLL，供QT调用

QT 5.15.2

Matlab R2022a

一、使用matlab生成dll

准备好matlab接口

命令行窗口敲入以下命令：

 

 弹出以下对话框

 

选择Library Compiler

弹出以下对话框

 

 

选择C++ Shared library

加入所有依赖的.m文件

点击package按钮

matlab 会为我们编译生成C++ dll

 

二、使用QT调用matlab生成的dll

.pro文件中加入以下配置

INCLUDEPATH += $$quote(D:/Program Files/MATLAB/R2022a/extern/include)
INCLUDEPATH += $$quote(D:/Program Files/MATLAB/R2022a/extern/include/win64)

INCLUDEPATH += $$quote(D:/Program Files/MATLAB/R2022a/extern/lib/win64/microsoft)
DEPENDPATH += $$quote(D:/Program Files/MATLAB/R2022a/extern/lib/win64/microsoft)
INCLUDEPATH += $$quote(D:/Program Files/MATLAB/R2022a/extern/lib/win64)
DEPENDPATH += $$quote(D:/Program Files/MATLAB/R2022a/extern/lib/win64)

win32: LIBS += -L$$quote(D:/Program Files/MATLAB/R2022a/extern/lib/win64/microsoft) -llibmx
win32: LIBS += -L$$quote(D:/Program Files/MATLAB/R2022a/extern/lib/win64/microsoft) -llibmat
win32: LIBS += -L$$quote(D:/Program Files/MATLAB/R2022a/extern/lib/win64/microsoft) -llibmex
win32: LIBS += -L$$quote(D:/Program Files/MATLAB/R2022a/extern/lib/win64/microsoft) -llibeng
win32: LIBS += -L$$quote(D:/Program Files/MATLAB/R2022a/extern/lib/win64/microsoft) -lmclmcr
win32: LIBS += -L$$quote(D:/Program Files/MATLAB/R2022a/extern/lib/win64/microsoft) -lmclmcrrt

 

使用时 需要先调用xxxxInitialize函数用于初始化

double buf[1024];
memset(buf, 0, sizeof(double) * 1024);
mwArray t1(1024, 1, mxDOUBLE_CLASS);

数据保存到buf中

t1.SetData(buf, 1024);

将t1作为参数传入接口中。

 

未解决的问题：

debug模式下会卡死， release下可以跑通。