C / C++ / MFC

OnInitDialog/OnInitialUpdtate()
{
HINSTANCE old = AfxGetResourceHandle();
AfxSetRexourceHandle(hInstanceOfDll);
//call base class
CPropertyPage::OnInitDialog()/OnInitialUpdate();
AfxSetResourceHandle(old);
...
}

#include <iostream.h>

fstream Outtxt("myfile.txt",ios::out);

for (int i=0;i<m_List.GetItemCount();i++)
{
  for(int j=0;j<NbItemPerColumn;j++)
  {
   Outtxt<<m_List.GetItemtext(i,j)<<endl;
  }
}

Outttxt.close();

protected:
   CArray<CDialog*, CDialog*> m_Forms; // array with all forms

   CArray<CDialog*, CDialog*> m_Forms; // array with all forms
protected:

CSubFormCollection m_SubForms;

CRect r;
(GetDlgItem(IDC_SUBFORM_FRAME))->GetWindowRect(&r); // get the position for the subforms
//    m_SubForms.SetRelPos(r);  // if the positioning is absolute use this, else the next line
m_SubForms.SetCenterPos(r);     // centers the subdialog within the static IDC_SUBFORM_FRAME
m_SubForms.CreateSubForm(IDD_SUBFORM1,this); // create the sub forms
m_SubForms.CreateSubForm(IDD_SUBFORM2,this);
m_SubForms.ShowSubForm();

m_SubForms.ShowSubForm(0);                    

CDialog *pDlg=(CDialog *)m_SubForms.m_Forms.GetAt(0);
CString str=pDlg->m_myEditCtrl.GetWindowText();