Opening / Saving multiple types of documents in MFC MDI applications

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

/*

	author:			Babak Taati ( http://qlink.queensu.ca/~3bt1/ )
	Download link:	http://qlink.queensu.ca/~3bt1/Miscellaneous/Downloads.htm	

	Description:	This is a simple project that allows opening / saving multiple types of documents
  
	References: 	1. MFC Document/View documentation and enhancements, by Roger Allen on CodeProject.com
					2. How to support two file extensions per MFC document type, Micorosft support document Article ID 141921
					3. DocMgrEx.exe Assoc Multiple File Extension w/2 Doc Tyle, Micorosft support document Article ID 198538
					4. Selecting multiple files in File Open dialog, by Kaus Gutter on CodeGuru.com
					5. Opening multiple documents of several types at once, by Ernesto Perales Soto on CodeProject.com

	Date:			Nov 2004

*/

#if !defined(AFX_MAINFRM_H__EE0E8AC7_09D3_45F5_ACC7_08DDAC9AD738__INCLUDED_)
#define AFX_MAINFRM_H__EE0E8AC7_09D3_45F5_ACC7_08DDAC9AD738__INCLUDED_

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

class CMainFrame : public CMDIFrameWnd
{
	DECLARE_DYNAMIC(CMainFrame)
public:
	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

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
	DECLARE_MESSAGE_MAP()
};

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

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

#endif // !defined(AFX_MAINFRM_H__EE0E8AC7_09D3_45F5_ACC7_08DDAC9AD738__INCLUDED_)