C / C++ / MFC

class MyObj
{
public:
   CString m_sA;
   CString m_sB;
   CString m_sC;
 
   // Whatever else you need in the class
   [...]
};

//////////////////////////////////////////////////////
// In the header file
 
class PageA : public CPropertyPage
{
protected:
   MyObj*  m_pObj;
 
   // Here are the variables associated
   // with controls in this page
   // which you normally create through
   // the Class Wizard
   CString m_sA;
 
public:
    PageA(MyObj* pObj);
 
   // Whatever else you need in the class
   [...]
};
 
//////////////////////////////////////////////////////
// In the implementation file
 
PageA::PageA(MyObj* pObj)
: m_pObj(pObj), CPropertyPage(PageA::IDD)
{
}
 
// Whatever else you need in the implementation file
[...].

BOOL PageA::OnSetActive()
{
   m_sA = m_pObj->m_sA;
   return CPropertyPage::OnSetActive();
}

BOOL PageA::OnKillActive()
{
   if (!CPropertyPage::OnKillActive())
      return FALSE;
   m_pObj->m_sA = m_sA;
}

void PageB::OnSomeButtonClicked()
{
   // Let's read m_sA
   if (!m_pObj->m_sA.IsEmpty())
   {
      m_sB = m_pObj->m_sA;
      m_sB += "(came from m_sA)";
   }
}
 
void PageC::OnSomeButtonClicked()
{
   // Let's modify m_sB
   m_pObj->m_sB = "Modified at PageC";
}

void EditObj(MyObj& obj, BOOL bEditB, BOOL bEditC)
{
   // Make a copy to be edited
   MyObj objCopy = obj;
 
   // Prepare the pages
    PageA(&objCopy);
    PageB(&objCopy);
    PageC(&objCopy);
 
   // Add the pages needed to a sheet
   CPropertySheet sheet(AfxGetMainWnd());
   sheet.AddPage(&PageA);
 
   if (bEditB)
      sheet.AddPage(&PageB);
 
   if (bEditC)
      sheet.AddPage(&PageC);
 
   // Run the dialog
   if (sheet.DoModal() == IDOK)
   {
      // Update object from changes
      // made in dialog
      obj = objCopy;
   }
}

void EditObj(MyObj& obj, BOOL bEditB, BOOL bEditC)
{
   // Make a copy to be edited
   MyObj objCopy = obj;
 
   // Prepare the pages
    PageA(&objCopy.m_sA); // this is the only change needed
    PageB(&objCopy);
    PageC(&objCopy);
 
   // Add the pages needed to a sheet
   CPropertySheet sheet(AfxGetMainWnd());
   sheet.AddPage(&PageA);
 
   if (bEditB)
      sheet.AddPage(&PageB);
 
   if (bEditC)
      sheet.AddPage(&PageC);
 
   // Run the dialog
   if (sheet.DoModal() == IDOK)
   {
      // Update object from changes
      // made in dialog
      obj = objCopy;
   }

CStatic myStatic;

// Create a child bitmap static control.
myStatic.Create(_T("my static"), 
   WS_CHILD|WS_VISIBLE|SS_BITMAP|SS_CENTERIMAGE, CRect(10,10,150,50), 
   pParentWnd);

// Set the bitmap of the static control to be the 
// system check-mark bitmap.
myStatic.SetBitmap( ::LoadBitmap(NULL, MAKEINTRESOURCE(OBM_CHECK)) );