calllib (External Interfaces Reference)

Call function in external library

Syntax

[x1, ..., xN] = calllib('libname', 'funcname', arg1, ..., argN)

Description

[x1, ..., xN] = calllib('libname', 'funcname', arg1, ..., argN) calls the function funcname in library libname, passing input arguments arg1 through argN. calllib returns output values obtained from function funcname in x1 through XN.

If you used an alias when initially loading the library, then you must use that alias for the libname argument.

Examples

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

unloadlibrary libmx

Generic DLL Interface Functions libfunctions