How to add dynamic menus to your application using DLLs

// MainFrm.h : interface of the CMainFrame class
//
/////////////////////////////////////////////////////////////////////////////

#if !defined(AFX_MAINFRM_H__6476E732_4B35_42AA_AD80_89D4A3680827__INCLUDED_)
#define AFX_MAINFRM_H__6476E732_4B35_42AA_AD80_89D4A3680827__INCLUDED_

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

typedef int (__cdecl  *NUMMENUPTR)(void);
typedef bool (__cdecl  *MENUTEXTPTR)(int ,CString&);
typedef bool (__cdecl *MENUTITLEPTR)(CString&);
typedef bool (__cdecl *MENUFUNCTIONPTR)(int);

struct DllStructure
{
	HINSTANCE m_hInst;
	UINT m_uStartID;
	int m_nMenu;
	MENUFUNCTIONPTR m_pFn;
};

class CMainFrame : public CFrameWnd
{

	CArray <DllStructure,DllStructure&> m_Dlls;
protected: // create from serialization only
	CMainFrame();
	DECLARE_DYNCREATE(CMainFrame)

// Attributes
public:

// Operations
public:

// Overrides
	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CMainFrame)
	virtual BOOL PreCreateWindow(CREATESTRUCT& cs);
	//}}AFX_VIRTUAL

// Implementation
public:
	virtual ~CMainFrame();
#ifdef _DEBUG
	virtual void AssertValid() const;
	virtual void Dump(CDumpContext& dc) const;
#endif
	void AddonMenus();
	BOOL AddPopUp(CString str,CMenu*pMenu);
protected:  // control bar embedded members
	CStatusBar  m_wndStatusBar;
	CToolBar    m_wndToolBar;

// Generated message map functions
protected:
	//{{AFX_MSG(CMainFrame)
	afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
		// NOTE - the ClassWizard will add and remove member functions here.
		//    DO NOT EDIT what you see in these blocks of generated code!
	//}}AFX_MSG
	afx_msg void DllFunctions(UINT nID);
	DECLARE_MESSAGE_MAP()
};

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

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

#endif // !defined(AFX_MAINFRM_H__6476E732_4B35_42AA_AD80_89D4A3680827__INCLUDED_)