XCrashReport : Exception Handling and Crash Reporting - Part 4

// ROEdit.cpp  Version 1.0
//
// Author:  Hans Dietrich
//          hdietrich2@hotmail.com
//
// This software is released into the public domain.
// You are free to use it in any way you like, except
// that you may not sell this source code.
//
// This software is provided "as is" with no expressed
// or implied warranty.  I accept no liability for any
// damage or loss of business that this software may cause.
//
///////////////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "search.h"
#include "ROEdit.h"

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

/////////////////////////////////////////////////////////////////////////////
// CROEdit

BEGIN_MESSAGE_MAP(CROEdit, CEdit)
	//{{AFX_MSG_MAP(CROEdit)
	ON_CONTROL_REFLECT(EN_CHANGE, OnChange)
	ON_CONTROL_REFLECT(EN_UPDATE, OnUpdate)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

CROEdit::CROEdit()
{
}

CROEdit::~CROEdit()
{
}

/////////////////////////////////////////////////////////////////////////////
// CROEdit message handlers


void CROEdit::OnChange() 
{
}

void CROEdit::OnUpdate() 
{
}

// throw away all keystrokes that could cause a change
BOOL CROEdit::PreTranslateMessage(MSG* pMsg) 
{
	if (pMsg->message == WM_KEYDOWN)
	{
		if (pMsg->wParam == 0x43)	// C
		{
			// let Ctrl-C go thru
			BOOL bCtrlDown = GetAsyncKeyState(VK_CONTROL) >> ((sizeof(SHORT) * 8) - 1);
			if (!bCtrlDown)
				return TRUE;
		}
		else 
		{
			if (pMsg->wParam == VK_BACK ||
				pMsg->wParam == VK_DELETE ||
				pMsg->wParam == 0x20 ||
				((pMsg->wParam >= 0x30) && (pMsg->wParam <= 0x5A)) ||
				((pMsg->wParam >= 0x60) && (pMsg->wParam <= 0x6F)) ||
				(pMsg->wParam >= 0xB8))
			{
				return TRUE;
			}
		}
	}

	return CEdit::PreTranslateMessage(pMsg);
}