sinstance.h

这个则是一个简单的监视文件系统的例子

/*
Module : SINSTANCE.H
Purpose: Defines the interface for an MFC wrapper classe
         to do instance checking
Created: PJN / 29-07-1998
History: None

Copyright (c) 1998 by PJ Naughter.  
All rights reserved.

*/

#ifndef __SINSTANCE_H__
#define __SINSTANCE_H__


#ifndef __AFXMT_H__
#pragma error("CInstanceChecker class requires afxmt.h in your PCH")
#endif


class CInstanceChecker : public CObject
{
public:
//Constructors / Destructors
  CInstanceChecker();

//General functions
  BOOL PreviousInstanceRunning();
  void ActivatePreviousInstance(); 

protected:
	CMutex m_instanceDataMutex;
	HANDLE m_hPrevInstance;
};




#endif //__SINSTANCE_H__