How to get Matlab 2011a Coder toolkit to generate a Visual Studio 2010 Express DLL with C++ source code
This is pure awesome but works great. Follow these steps:
Type coder on Matlab command line
Build c++ static library with only ‘generate code’ button clicked.
In Visual Studio 2010 Express, use New -> Project from existing code
Select lib/hello_world folder (built from within Matlab coder) and name project with minimal selected (if you want minimal code) . Ensure DLL project type is picked. Also pick use all supporting options like MFC, ATL, and CLR (use default) to generate DLL during build.
This could generate a link error of if you choose something like Windows Console Project:
1>MSVCRTD.lib(crtexe.obj) : error LNK2019: unresolved external symbol _main referenced in function ___tmainCRTStartup
You want to see if you choose a DLL Project:
1> HelloWorld.vcxproj -> C:\matlab_m_scripts\coder_test2\codegen\lib\hello_world\Debug\HelloWorld.dll
Hooray. It seems to work for Matlab code! So why use R ro Python to do this sort of stuff? That is if you can afford Matlab with the $6500 Coder toolkit.
Note method below creates unmanaged DLL. You need to create a managed DLL by choosing Static Library DLL project type. Also, manually add Matlab generated C++ and header files into new Visual Studio project. You may need to convert some data type variables in source from something like int32_T to plain int. Each generate C++ file will need to include directive “#include “StdAfx.h”” to build the DLL.
Find out how to create a managed C++ static library in Visual Studio 2010 at:
Better is below:
Walkthrough: Creating and Using a Dynamic Link Library (C++)
I tried the two MSDN links aboce but they lead you nowhere but I found this:
I wish Microsoft made it simpler for C# to import an unmanaged C++ DLL. Even simpler to make a managed C++ DLL.
What a pain! The above code project works.
Use ExampleMCppBridge C++ project to create DLL ensure to use proper Debug DLL not Release in the C# project. Use ExampleTestAppWithCSWrapper C# project to import ExampleMCppBridge DLL.
I finally got a much simpler version working from the original source above noted originally. Here is working download example I created within Visual Studio 2010 Express C++ and C# editions.
A complete demo with the Matlab M files, converted Visual Studio 2010 solutions of C++ code in a DLL, and a C# application to read it.
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