C / C++ / MFC

typedef struct{
  int number;
  string name; } myData;
class myClass{
  void InsertData(myData &a);
  void oneFunction ();
  void otherFunction ();
  collection <myData> m_memberCollection;
};
void oneFunction() {
  myData localData;
  localData.name = "Paul";
  InsertData(localData);
}
void myClass::InsertData (myData &a){
  a.number = 5;
  m_memberCollection.push_back(a);
}
void otherFunction (){
  printf ("%s %d", m_memberCollection[0].name.c_str(), m_memberCollection[0].number);
}

Here is my code :
void CPreview::OnpreviewBtnClk()
{
	::MessageBox(m_hWnd,_T("here is the preview "),_T("INFORMATION"),MB_ICONINFORMATION);
	
	TCHAR szCmdline[MAX_PATH];
	CString szWindowTitle = _T("rs-mplayer");
	VERIFY(::GetModuleFileName(AfxGetApp()->m_hInstance, szCmdline, _MAX_PATH));			
	szCmdline [StrRChr (szCmdline, NULL, _T('\\')) - szCmdline] = _T('\0');
	_tcscat_s(szCmdline, _T("\\rs-mplayer.exe /"));

 	ShellExecute(NULL,_T("open"),szCmdline,NULL,sourceFileName,SW_SHOWNORMAL);
 	
//	ProcessID = GetProcessId(szWindowTitle);
 
 	Sleep(500);
 
 	CWnd *pOtherWnd = CWnd::FindWindow(NULL, szWindowTitle);
 	h_Rs_playerProcessId  =pOtherWnd;
 
 	if (pOtherWnd)
 	{
		//ProcessID = GetProcessId(pOtherWnd);
		
 		MYDATA      m_mydata;
 		wcscpy(m_mydata.m_pName,sourceFileName);
 		m_mydata.m_bNameLength = (BYTE)sourceFileName.GetLength();
 		m_mydata.m_ullNodeSize =   m_li64FileSize.QuadPart;
 
 		COPYDATASTRUCT cpd;
 		cpd.dwData = 1;
 		cpd.cbData = sizeof(MYDATA);
 		cpd.lpData = (void*)&m_mydata;
		//GetProcessTimes(h_Rs_playerProcessId,);
 
 		copyDataResult = pOtherWnd->SendMessage(WM_COPYDATA,
 			(WPARAM)AfxGetApp()->m_pMainWnd->GetSafeHwnd(),
 			(LPARAM)&cpd);
 
 	} 
 	ProcessID;
	
	
	// PreviewFile(szCmdline, sourceFileName, szWindowTitle,  m_li64FileSize.QuadPart);
	<pre><pre>

int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
    if (CFrameWnd::OnCreate(lpCreateStruct) == -1)
        return -1;

    if (!m_wndToolBar.CreateEx(this, TBSTYLE_FLAT, WS_CHILD | WS_VISIBLE | CBRS_TOP
        | CBRS_GRIPPER | CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC) ||
        !m_wndToolBar.LoadToolBar(IDR_MAINFRAME))
    {
        TRACE0("Failed to create toolbar\n");
        return -1;      // fail to create
    }

error C2660: 'SetDlgItemTextW' : function does not take 2 arguments

//headers files included

#ifdef _DEBUG
#define new DEBUG_NEW
#endif

void mouseEvent( int evt, int x, int y, int flags, void* param );

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();
	.......
        .......
protected:
         .......
}:
	........
        ........
        ........


BEGIN_MESSAGE_MAP(Copencv01Dlg, CDialog)
	.......
        .......
END_MESSAGE_MAP()


// Copencv01Dlg message handlers

BOOL Copencv01Dlg::OnInitDialog()
{
	CDialog::OnInitDialog();

           ........
           ........
	
	MoveWindow(0, 0, 500, 500, 1);
	AfxBeginThread(MyThreadProc, this);
	return TRUE;  
}

UINT Copencv01Dlg::MyThreadProc(LPVOID pParam)
    {
     Copencv01Dlg * me = (Copencv01Dlg *)pParam;
     me->MyThreadProc();
     return TRUE;
    }


void Copencv01Dlg::MyThreadProc()
{ 
	
	cvNamedWindow("MyWindow");

        //assigning the callback function for mouse events
        cvSetMouseCallback("MyWindow", mouseEvent, 0);
        IplImage* img = cvLoadImage("box.png");
        cvShowImage("MyWindow", img);
        cvWaitKey(0);
        cvDestroyWindow("MyWindow");
        cvReleaseImage(&img);
	
}

void Copencv01Dlg::OnSysCommand(UINT nID, LPARAM lParam)
{
........
........
}

void Copencv01Dlg::OnPaint()
{
.........
.........
}

HCURSOR Copencv01Dlg::OnQueryDragIcon()
{
	return static_cast<HCURSOR>(m_hIcon);
}
void mouseEvent(int evt, int x, int y, int flags, void* param)
{
    if(evt==CV_EVENT_LBUTTONDOWN){
		CString cx, cy;
		cx.Format(_T("%d"), x);
		cy.Format(_T("%d"), y);
		SetDlgItemTextW(IDC_Blue, cx);  //error generating line
		SetDlgItemTextW(IDC_Green, cy);  //error generating line
    }
}