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, 25 Jul 2012 CPOL 585.5K 12K 205
A CDialog derived class to implement resizable dialogs with MFC
// ResizableGrip.h: interface for the CResizableGrip class.
// 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!


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

#define WS_EX_LAYOUT_RTL	0x00400000

class CResizableGrip  
	SIZE m_sizeGrip;		// holds grip size

	CScrollBar m_wndGrip;	// grip control

	static BOOL IsRTL(HWND hwnd)
		DWORD dwExStyle = ::GetWindowLong(hwnd, GWL_EXSTYLE);
		return (dwExStyle & WS_EX_LAYOUT_RTL);

	static LRESULT CALLBACK GripWindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam);

	BOOL InitGrip();
	void UpdateGripPos();
	void ShowSizeGrip(BOOL bShow = TRUE);	// show or hide the size grip

	virtual CWnd* GetResizableWnd() = 0;

	virtual ~CResizableGrip();


#endif // !defined(AFX_RESIZABLEGRIP_H__INCLUDED_)

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About the Author

Paolo Messina
Software Developer RoboTech srl
Italy Italy
Paolo began programming at the age of 9 with a glorious 8086 and GW-BASIC, then he played a bit with C, ASM and Pascal. He tought himself MFC and Windows programming, to exploit his studies of C++. Always attracted by low-level programming and Assembly, he's beginning to appreciate the joys of templates and STL. At work he changed his mind about Java, discovered Eclipse IDE, and now think it's cool.

He lives in Follonica, Italy.

He has been abroad in the U.S. to work on his final thesis before graduating. For seven months he was playing with airplanes and automatic control at the Unversity of Illinois at Urbana-Champaign.

He graduated in Computer Science Engineering at the University of Pisa, Italy, in December 2003.

Currently working for an edutainment robotics company (
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