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, 25 Jul 2012 CPOL
A CDialog derived class to implement resizable dialogs with MFC

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

// Copyright (C) 2000-2001 by Paolo Messina
// ( -
// The contents of this file are subject to the Artistic License (the "License").
// You may not use this file except in compliance with the License. 
// You may obtain a copy of the License at:
// If you find this code useful, credits would be nice!

#include "ResizableLayout.h"
#include "ResizableGrip.h"
#include "ResizableMinMax.h"
#include "ResizableState.h"

// ResizableSheet.h : header file

class CResizableSheet : public CPropertySheet, public CResizableLayout,
						public CResizableGrip, public CResizableMinMax,
						public CResizableState

// Construction
	CResizableSheet(UINT nIDCaption, CWnd *pParentWnd = NULL, UINT iSelectPage = 0);
	CResizableSheet(LPCTSTR pszCaption, CWnd *pParentWnd = NULL, UINT iSelectPage = 0);

// Attributes
	// flags
	BOOL m_bEnableSaveRestore;
	BOOL m_bRectOnly;
	BOOL m_bSavePage;

	// layout vars
	CSize m_sizePageTL, m_sizePageBR;

	// internal status
	CString m_sSection;			// section name (identifies a parent window)
	BOOL m_bInitDone;			// if all internal vars initialized

// Operations

// Overrides
	// ClassWizard generated virtual function overrides
	virtual BOOL OnInitDialog();

// Implementation
	virtual ~CResizableSheet();

// used internally
	void PresetLayout();
	void Construct();
	void SavePage();
	void LoadPage();

	BOOL IsWizard() { return (m_psh.dwFlags & PSH_WIZARD); }

// callable from derived classes
	// section to use in app's profile
	void EnableSaveRestore(LPCTSTR pszSection, BOOL bRectOnly = FALSE,
		BOOL bWithPage = FALSE);
	int GetMinWidth();	// minimum width to display all buttons

	virtual CWnd* GetResizableWnd()
		// make the layout know its parent window
		return this;

// Generated message map functions
	virtual BOOL ArrangeLayoutCallback(LayoutInfo& layout);
	afx_msg void OnGetMinMaxInfo(MINMAXINFO FAR* lpMMI);
	afx_msg void OnSize(UINT nType, int cx, int cy);
	afx_msg void OnDestroy();
	afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
	afx_msg BOOL OnEraseBkgnd(CDC* pDC);
	afx_msg BOOL OnPageChanging(NMHDR* pNotifyStruct, LRESULT* pResult);



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


About the Author

Paolo Messina
Technical Lead RoboTech srl
Italy Italy
Paolo began programming at the age of 9 with a glorious Olivetti M24 (i8086) and GW-BASIC, then he played a bit with Turbo C, Turbo Pascal and Assembly (using the MS-DOS Debug). Quick BASIC and Visual Basic shortly followed, until he learned C++ in College. He tought himself MFC and Windows programming, along with some DHTML and Javascript.

Always attracted by low-level programming and Assembly, he started to appreciate the joys of templates and STL while working for his Master Thesis. For seven months he was playing with airplanes and automatic control at the Unversity of Illinois at Urbana-Champaign, where he first met QNX and embedded systems.

In his job experience he learned Java to develop user interfaces and graphical editors, and re-discovered the Eclipse IDE that he had used in its early versions with the QNX SDK. He also deepened his knowledge of Linux and embedded systems, microcontrollers firmware and embedded voice recognition, while also practicing electronics design.

He graduated in Computer Engineering (Ingegneria informatica) at the University of Pisa, Italy, in December 2003. Currently working for an edutainment robotics company (

He lives in Peccioli (Pisa) and Follonica (GR), Italy.

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