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Posted 29 Jul 2004

CFilterEdit: Use Regular Expressions to Filter Your Input

, 3 Oct 2011
The definitive approach to filtering input text. Includes configurable error display.
#include "StdAfx.h"
#include "UIntEdit.h"

namespace FilterEdit
bool CUIntEdit::m_bInitialised = false;
CRegEx CUIntEdit::m_RegEx;

CUIntEdit::CUIntEdit () :
	CBaseEdit (&m_RegEx)
	if (!m_bInitialised)
		CString strRegEx (_T("0|[1-9][0-9]*"));

		m_RegEx.assign (strRegEx);
		m_bInitialised = true;

CUIntEdit::~CUIntEdit ()

unsigned int CUIntEdit::GetValue () const
	CString strUInt;

	GetWindowText (strUInt);
	return _tstoi (strUInt);

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About the Author

Ben Hanson
Software Developer (Senior)
United Kingdom United Kingdom
I started programming in 1983 using Sinclair BASIC, then moving on to Z80 machine code and assembler. In 1988 I programmed 68000 assembler on the ATARI ST and it was 1990 when I started my degree in Computing Systems where I learnt Pascal, C and C++ as well as various academic programming languages (ML, LISP etc.)

I have been developing commercial software for Windows using C++ for 22 years.

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