Question

I’m having a problem when I try to call a Matlab funcion from my C++ code.

When I call engOpen, it always returns NULL.
Here is the code:

Engine *m_pEngine;
m_pEngine = engOpen(NULL);
if(m_pEngine == NULL)
{
   cout << "Error" << endl;
   exit(1);
}

Does somebody know how to solve this?

Thanks !!!

Answer 1

If you look at the engOpen documentation it says:

On Windows systems, engOpen opens a COM channel to MATLAB. The MATLAB software you registered during installation starts. If you did not register during installation, on the command line you can enter the command:

matlab /regserver

I’m not sure that is your problem, but it seems worth a try.