i want to do a mixed program with vc2012, and i setup my vs like this

does anyone help me.

My purpose:compiled into a ".dll/.lib/.h" write a function with MATLAB,And then use VC to call it to display the dialog box and accept the return result.

my environmental Science:win8.1 + matlab r2013a(32) + vsiual 2012(32) and I made things a 32 bit program.

1，I write my matlab m-file as:

function s=li_ret_int(type)

%input 1 or 2 or null

%output positive,negitive,or zero

if ~nargin, type=3;end;

switch (type)

    case 1

        s = 12345678;

    case 2

        s = -12345678;

    otherwise

        s = 0;

end;

2，i compiled my m-file use: "mcc -W lib:li_ret_int -T link:lib li_ret_int.m"

3，Environment variables path add "C:\Program Files (x86)\MATLAB\R2013a\runtime\win32;C:\Program Files (x86)\MATLAB\R2013a\bin\win32"

4，visual 2012 my project setting: C\C++ -> General Additional Include Directories: "C:\Program Files (x86)\MATLAB\R2013a\extern\include;C:\Program Files (x86)\MATLAB\R2013a\bin\win32"

C\C++ -> Code Generation -> Runtime Library: "Multi-threaded Debug DLL (/MDd)" / "Multi-threaded DLL (/MD)"

Linker - >Input ->Additional Dependencies: linked all the lib files in "C:\Program Files (x86)\MATLAB\R2013a\extern\lib\win32\microsoft\"

and in my cpp file includes:

#include "ret_int_Lib.h"

#include "engine.h"

#include "mclmcr.h"

#include "matrix.h"

#include "mclcppclass.h"

#include iostream

but the error is：

1> running this function "ret_int_LibInitialize()" error: "Unhandled exception at 0x01531A80 (mfc110d.dll) in zjTestDemo1.exe: 0xC0000005: Access violation reading location 0xF8921B50." First-chance exception at 0x01531A80 (mfc110d.dll) in zjTestDemo1.exe: 0xC0000005: Access violation reading location 0xF8921B50. Unhandled exception at 0x01531A80 (mfc110d.dll) in zjTestDemo1.exe: 0xC0000005: Access violation reading location 0xF8921B50.

2>running VC code: mxArray A = mxCreateString("a"); memcpy((void) mxGetPr(A), (void*)&init, sizeof (double)); engPutVariable(pEng, "A", A);

mxArray *B = mxCreateDoubleMatrix(2, 2, mxREAL);

Result： A = NULL； B = NULL；

thank you. chopper waiting.

[li]

my vc code test function:

void CzjTestDemo1Dlg::OnBnClickedButton2()

{

// TODO: Add your control notification handler code here

   Engine* pEng = NULL;
  if (!(pEng = engOpen(NULL)))
  {
    printf("Open matlab enging fail!");
    return;
  }

   if( !mclInitializeApplication(NULL,0) ) 

   {
  AfxMessageBox( "Could not initialize the application.");
  exit(1);
   }

   if (!ret_int_LibInitialize()) 

   {
  AfxMessageBox("Could not initialize the library.");
  exit(1);
   } 

    double xxxx[1] = {0};
    double inin    = 0;

    double yyyy[1] = {0};
    double outo    = 0;

    // 
    mwArray mwXX(1, 1, mxDOUBLE_CLASS);
    mwArray mwIn(1, 1, mxDOUBLE_CLASS);

    mwArray mwYY(1, 1, mxDOUBLE_CLASS);
    mwArray mwOut(1, 1, mxDOUBLE_CLASS);

    // 
    mwXX.SetData((mxDouble *)&xxxx, 1);
    mwIn.SetData(&inin, 1);

    // 
    //mlxLi_ret_int(2,&mwYY, mwOut,mwXX,mwIn);
  li_ret_int(1,mwOut,mwIn);
    // 
    outo = mwOut.Get(1, 1);

    // lib Terminate
    ret_int_LibTerminate();

    // MCR Terminate
    mclTerminateApplication();

}