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An MFC extension library to enable DLL plug-in technology for your application using MESSAGE_MAPs

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8 Jun 2004CPOL17 min read 577.2K   8.6K   238  
A plug-in architecture which allows you to write plug-in DLLs for your application and extend/modify its functionality.
// (c)2002 R.I.Allen
// this is the base class that yout CMainFrame class should inherit from to gain
// the plug-in architecture support
//
// PlugInMainFrame.h : interface of the CPIMainFrame class
/////////////////////////////////////////////////////////////////////////////

#ifndef PLUGIN_MAINFRAME_BASE_CLASS
#define PLUGIN_MAINFRAME_BASE_CLASS

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

class _PLUGIN_API CPIMainFrame : public CMDIFrameWnd
{
	DECLARE_DYNAMIC(CPIMainFrame)
public:
	CPIMainFrame();

// Attributes
public:

private:
	CPlugInMap**	m_pMaps ;
	int				m_MapCount ;
	bool			m_bSuppressThisMessage ;
	CPIState		m_state;
// Operations
public:

// Overrides
	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CPIMainFrame)
	virtual BOOL OnCmdMsg(UINT nID, int nCode, void* pExtra, AFX_CMDHANDLERINFO* pHandlerInfo);
	virtual BOOL OnWndMsg(UINT message, WPARAM wParam, LPARAM lParam, LRESULT* pResult);
	//}}AFX_VIRTUAL

// Implementation
public:
	void		SuppressThisMessage(bool suppress) { m_bSuppressThisMessage = suppress ;} ;
	virtual ~CPIMainFrame();
#ifdef _DEBUG
	virtual void AssertValid() const;
	virtual void Dump(CDumpContext& dc) const;
#endif

// Generated message map functions
protected:
	void		InitialisePlugIns() ;
	//{{AFX_MSG(CPIMainFrame)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

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

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

#endif // PLUGIN_MAINFRAME_BASE_CLASS

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


Written By
Software Developer (Senior) Sirius Analytical Instruments
United Kingdom United Kingdom
A research and development programmer working for a pharmaceutical instrument company for the past 17 years.

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