Call MATLAB from C - MATLAB & Simulink (original) (raw)

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Run MATLAB® code from C programs, using mxArray

Note

Functions in the Engine API for C work with the MATLABmxArray data structure, which is defined in the C Matrix API. To write applications using modern C++ features, see Call MATLAB from C++.

Engine applications are standalone programs that allow you to call MATLAB from your own C/C++ programs, using MATLAB as a computation engine. To build an engine application, call themex function.

Engine applications require an installed version of MATLAB; you cannot run the MATLAB engine on a machine that only has the MATLAB Runtime.

Engine API for C

Topics

Write Engine Applications

• Create C Engine Applications Using mxArray
  What to do to start building C engine applications.
• MATLAB Engine APIs for C and Fortran
  Call MATLAB from your own C and Fortran programs, using MATLAB as a computation engine.
• Call MATLAB Functions from C Applications
  Create a C engine application engdemo.c.
• Attach to Existing MATLAB Sessions
  This example shows how to attach an engine program to a MATLAB session that is already running.
• Callbacks in Applications
  Design user interface callbacks to be evaluated in the context of the base workspace.

Build and Run Windows Applications

• Set Run-Time Library Path on Windows Systems
  At run time, tell the operating system where the API shared libraries are by setting the Path environment variable.
• Build Windows Engine Application
  This example shows how to verify the build process on Windows® platforms using the C example engwindemo.c.
• Run Windows Engine Application
  This example shows how to run the C example,engwindemo.c, from the Windows system prompt.
• Register MATLAB as a COM Server
  Register MATLAB for every session, to ensure that the current version of MATLAB is the registered version.

Build and Run Mac Applications

• Set Run-Time Library Path on macOS Systems
  Tell the operating system where the API shared libraries are by setting theDYLD_LIBRARY_PATH environment variable.
• Build Engine Application on macOS
  This example shows how to verify the build process on a macOS platform.
• Run Engine Application on macOS
  This example shows how to run the C exampleengdemo.c from the macOS Terminal Window.

Build and Run Linux Applications

• Set Run-Time Library Path on Linux Systems
  Tell the operating system where the API shared libraries are by setting theLD_LIBRARY_PATH environment variable.
• Build Engine Application on Linux
  This example shows how to verify the build process on a Linux® platform.
• Run Engine Application on Linux
  This example shows how to run the C exampleengdemo.c from the Linux system prompt.

Troubleshooting