External Interfaces

Invoking Library Functions

Once a shared library has been loaded into MATLAB, use the calllib function to call any of the functions from that library. Specify the library name, function name, and any arguments that get passed to the function:

• calllib('libname', 'funcname', arg1, ..., argN)
  

This example calls functions from the libmx library to test the value stored in y.

• hfile = [matlabroot '\extern\include\matrix.h'];
  loadlibrary('libmx', hfile)
  
  y = rand(4, 7, 2);
  
  calllib('libmx', 'mxGetNumberOfElements', y)
  ans =
      56
  
  calllib('libmx', 'mxGetClassID', y)
  ans =
     mxDOUBLE_CLASS
  

Getting Information About the Library

Passing Arguments

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