zddesk.h

这是书上的代码

#ifndef __AFXWIN_H__
   #error include 'stdafx.h' before including this file for PCH
#endif

#include "resource.h"       // main symbols

/////////////////////////////////////////////////////////////////////////////

class CZDDeskApp : public CWinApp
{
// Private operations
private:
  
   // 判断程序是否已经运行
   BOOL AlreadyRunning();
   
// Construction/Destruction
public:
   // Constructor
   CZDDeskApp();

// Public operations
public:

// Overrides
   // ClassWizard generated virtual function overrides
   //{{AFX_VIRTUAL(CZDDeskApp)
   public:
   virtual BOOL InitInstance();
   //}}AFX_VIRTUAL

// Implementation

   //{{AFX_MSG(CZDDeskApp)
   //}}AFX_MSG
   DECLARE_MESSAGE_MAP()
};


/////////////////////////////////////////////////////////////////////////////
// CAbout dialog

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

// Dialog Data
   //{{AFX_DATA(CAbout)
   enum { IDD = IDD_ABOUT };
      // NOTE: the ClassWizard will add data members here
   //}}AFX_DATA


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

// Implementation
protected:

   // Generated message map functions
   //{{AFX_MSG(CAbout)
   afx_msg HBRUSH OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor);
   //}}AFX_MSG
   DECLARE_MESSAGE_MAP()
};