292 Introduction to C++ Programming and Graphics
engOutputBuffer (ep, Bufname, Bufsize);whereBufsizeandBugnameare given names. The functionengOutputBuffer
returns an integer.
Executing aMatlabcommand
We can execute (evaluate) aMatlabcommand directly by invoking the
function:
engEvalString (ep, "matlab command");or indirectly by issuing the commands:
char mcom[] = "matlab command";
engEvalString (ep, mcom);The functionengEvalStringreturns an integer.
Putting variables into theMatlabworkspace
We can transfer a variable from the C++ domain to the engine workspace
by invoking the function:
engPutVariable (Engine *ep, const char *string, const mxArray * string);as discussed in Section 9.4. The functionengPutVariablereturns an integer.
Retrieving variables from theMatlabworkspace
We can transfer a variable from theMatlabworkspace to the C++
domain by invoking the function:
mxArray * engGetVariable (Engine *ep, const char *string);as discussed in Section 9.5.
Running aMatlabsession
In the simplest application, we startMatlabfrom a C++ program and
carry out various computations in theMatlabworkspace. The commands
are transferred from the C++ domain to theMatlabworkspace, and the
Matlabresponse becomes available through a buffer in the form of a long
character string. Thus, direct data exchange does not take place.