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ResizableLib

, 15 Jun 2004 CPOL
A set of classes to ease the development of resizable windows with MFC
ResizableDialog
Demo.dsp
Demo.dsw
Release_Static
Demo.exe
Demo.exe.manifest
res
bitmap1.bmp
Demo.ico
toolbar1.bmp
ResizableFormViewMDI
Demo.dsp
Demo.dsw
Release_Static
Demo.exe
Demo.exe.manifest
res
Demo.ico
DemoDoc.ico
DemoDoc0.ico
DemoDoc1.ico
DemoDoc2.ico
ResizableFormViewSDI
Demo.dsp
Demo.dsw
Release_Static
Demo.exe
Demo.exe.manifest
res
Demo.ico
DemoDoc.ico
Toolbar.bmp
ResizableLib
.cvsignore
Docs
CVS
Entries
Repository
Root
Release_Static
ResizableLib.lib
ResizableLib.dsp
ResizableLib.dsw
.cvsignore
ResizableLib.dsp
ResizableLib.dsw
ChangeLog
ResizableLib.dsp
ResizableLib.dsw
ResizableMsgSupport.inl
Doxyfile-include
Doxyfile
ResizableLib.dsp
ResizableLib.dsw
ResizableLib.dsp
ResizableLib.dsw
.cvsignore
ResizableProperties
Demo.dsp
Demo.dsw
Release_Static
Demo.exe
Demo.exe.manifest
res
Demo.ico
ResizableWizard97
Release_Static
Wizard97.exe
Wizard97.exe.manifest
res
Baner16.bmp
Baner256.bmp
Water16.bmp
Water256.bmp
Wizard97.ico
Wizard97.dsp
Wizard97.dsw
// ResizableMDIFrame.cpp : implementation file
//
/////////////////////////////////////////////////////////////////////////////
//
// This file is part of ResizableLib
// http://sourceforge.net/projects/resizablelib
//
// Copyright (C) 2000-2004 by Paolo Messina
// http://www.geocities.com/ppescher - mailto:ppescher@hotmail.com
//
// 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:
// http://www.opensource.org/licenses/artistic-license.html
//
// If you find this code useful, credits would be nice!
//
/////////////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "ResizableMDIFrame.h"

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

/////////////////////////////////////////////////////////////////////////////
// CResizableMDIFrame

IMPLEMENT_DYNCREATE(CResizableMDIFrame, CMDIFrameWnd)

CResizableMDIFrame::CResizableMDIFrame()
{
	m_bEnableSaveRestore = FALSE;
}

CResizableMDIFrame::~CResizableMDIFrame()
{
}


BEGIN_MESSAGE_MAP(CResizableMDIFrame, CMDIFrameWnd)
	//{{AFX_MSG_MAP(CResizableMDIFrame)
	ON_WM_GETMINMAXINFO()
	ON_WM_DESTROY()
	ON_WM_NCCREATE()
	ON_WM_WINDOWPOSCHANGING()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CResizableMDIFrame message handlers

void CResizableMDIFrame::OnGetMinMaxInfo(MINMAXINFO FAR* lpMMI) 
{
	// MDI should call default implementation
	CMDIFrameWnd::OnGetMinMaxInfo(lpMMI);

	MinMaxInfo(lpMMI);

	BOOL bMaximized = FALSE;
	CMDIChildWnd* pChild = MDIGetActive(&bMaximized);
	if (pChild != NULL && bMaximized)
		ChainMinMaxInfo(lpMMI, this, pChild);
}

// NOTE: this must be called after setting the layout
//       to have the view and its controls displayed properly
BOOL CResizableMDIFrame::EnableSaveRestore(LPCTSTR pszSection, BOOL bRectOnly)
{
	m_sSection = pszSection;

	m_bEnableSaveRestore = TRUE;
	m_bRectOnly = bRectOnly;

	// restore immediately
	return LoadWindowRect(pszSection, bRectOnly);
}

void CResizableMDIFrame::OnDestroy() 
{
	if (m_bEnableSaveRestore)
		SaveWindowRect(m_sSection, m_bRectOnly);

	CMDIFrameWnd::OnDestroy();
}

BOOL CResizableMDIFrame::OnNcCreate(LPCREATESTRUCT lpCreateStruct) 
{
	if (!CMDIFrameWnd::OnNcCreate(lpCreateStruct))
		return FALSE;

	MakeResizable(lpCreateStruct);
	
	return TRUE;
}

LRESULT CResizableMDIFrame::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) 
{
	if (message != WM_NCCALCSIZE || wParam == 0)
		return CMDIFrameWnd::WindowProc(message, wParam, lParam);

	// specifying valid rects needs controls already anchored
	LRESULT lResult = 0;
	HandleNcCalcSize(FALSE, (LPNCCALCSIZE_PARAMS)lParam, lResult);
	lResult = CMDIFrameWnd::WindowProc(message, wParam, lParam);
	HandleNcCalcSize(TRUE, (LPNCCALCSIZE_PARAMS)lParam, lResult);
	return lResult;
}

void CResizableMDIFrame::OnWindowPosChanging(WINDOWPOS FAR* lpwndpos) 
{
	CMDIFrameWnd::OnWindowPosChanging(lpwndpos);

	// since this window class doesn't have the style CS_HREDRAW|CS_VREDRAW
	// the client area is not invalidated during a resize operation and
	// this prevents the system from using WM_NCCALCSIZE to validate rects
	Invalidate();
}

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License

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

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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.

At work 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. There 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 (www.robotechsrl.com).

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

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