argument structure in matlab compiled libraries.

hi,

 i went through the mcc example but something is not clear. can someone please clarify. In the example we have

function a = addmatrix(a1, a2) a = a1 + a2;

which afteri compli using mcc results in a following definition in the c++ header file

addmatrix(int nargout, mwArray& a, mwArray& a1, mwArray& a2);

my question is if the output of the matlab function is a structure which contains a vector of dimension 1X5 and a matrix of dimension 7X3 then what should nargout be ? and how should i define mwArray a ?

since the output of the matlab structure is just 1 structure should nargout be equal to 1 ? and should i be defining mwArray as mwArray a(1*5+7*3) in my c++ code.

thanks in advance.