Encapsulating interacting controls

#if !defined(AFX_TESTDIALOG_H__9BC8EAF3_D4F9_11D7_A638_002018641C4D__INCLUDED_)
#define AFX_TESTDIALOG_H__9BC8EAF3_D4F9_11D7_A638_002018641C4D__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
// TestDialog.h : header file
//

#include "CustomWnd.h"

/////////////////////////////////////////////////////////////////////////////
// CRH_TestDialog dialog

class CRH_TestDialog : public CDialog
{
// Construction
public:
    CRH_TestDialog(CWnd* pParent = NULL);   // standard constructor

// Dialog Data
    //{{AFX_DATA(CRH_TestDialog)
    enum { IDD = IDD_CRH_TESTDIALOG };
    CSliderCtrl	m_Slider1;
    CSliderCtrl	m_Slider2;
    int		m_s1;
    int		m_s2;
    //}}AFX_DATA


// Overrides
    // ClassWizard generated virtual function overrides
    //{{AFX_VIRTUAL(CRH_TestDialog)
    protected:
    virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
    //}}AFX_VIRTUAL

// Implementation
protected:

    // Generated message map functions
    //{{AFX_MSG(CRH_TestDialog)
    virtual BOOL OnInitDialog();
    afx_msg void OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar);
    //}}AFX_MSG
    DECLARE_MESSAGE_MAP()

    afx_msg LRESULT OnCRH_CUSTOMWND_VALUE_HAS_CHANGED(WPARAM wparam, LPARAM lparam);

    CRH_CustomWnd v1CRH_CustomWnd;
    CRH_CustomWnd v2CRH_CustomWnd;
};

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_TESTDIALOG_H__9BC8EAF3_D4F9_11D7_A638_002018641C4D__INCLUDED_)