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Posted 24 May 2000


, 25 Jul 2012 CPOL
A CDialog derived class to implement resizable dialogs with MFC
// ResizablePageEx.cpp : implementation file
// 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 "stdafx.h"
#include "ResizablePageEx.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;

// CResizablePageEx

IMPLEMENT_DYNCREATE(CResizablePageEx, CPropertyPageEx)

inline void CResizablePageEx::Construct()
	m_bInitDone = FALSE;


CResizablePageEx::CResizablePageEx(UINT nIDTemplate, UINT nIDCaption, UINT nIDHeaderTitle, UINT nIDHeaderSubTitle)
	: CPropertyPageEx(nIDTemplate, nIDCaption, nIDHeaderTitle, nIDHeaderSubTitle)

CResizablePageEx::CResizablePageEx(LPCTSTR lpszTemplateName, UINT nIDCaption, UINT nIDHeaderTitle, UINT nIDHeaderSubTitle)
	: CPropertyPageEx(lpszTemplateName, nIDCaption, nIDHeaderTitle, nIDHeaderSubTitle)


BEGIN_MESSAGE_MAP(CResizablePageEx, CPropertyPageEx)

// CResizablePageEx message handlers

BOOL CResizablePageEx::OnInitDialog() 
/*	// gets the initial size as the min track size
	CRect rc;
	m_bInitDone = TRUE;

	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE

void CResizablePageEx::OnSize(UINT nType, int cx, int cy) 
	CWnd::OnSize(nType, cx, cy);
	if (m_bInitDone)

BOOL CResizablePageEx::OnEraseBkgnd(CDC* pDC) 
	return CPropertyPageEx::OnEraseBkgnd(pDC);

BOOL CResizablePageEx::NeedsRefresh(HWND hWnd)
	if (m_psp.dwFlags | PSP_HIDEHEADER)
		return TRUE;

	return CResizableLayout::NeedsRefresh(hWnd);

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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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