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"Do not ask again" Message Boxes

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4 Feb 2003CPOL5 min read 183.2K   2.9K   66  
Two simple ways to add "Do not ask again" Message Boxes to your application.
// MsgBoxDlg.cpp : implementation file
//

#include "stdafx.h"
#include "MsgBox.h"
#include "MsgBoxDlg.h"
#include "MsgBoxHook.h"
#include "nbMessageBox.h"

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


/////////////////////////////////////////////////////////////////////////////
// CMsgBoxDlg dialog

CMsgBoxDlg::CMsgBoxDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CMsgBoxDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CMsgBoxDlg)
	m_strMessage = _T("Enter message to prompt");
	m_nStyle = 0;
	m_nIcon = 0;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CMsgBoxDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CMsgBoxDlg)
	DDX_Text(pDX, IDC_MESSAGE, m_strMessage);
	DDX_CBIndex(pDX, IDC_STYLE, m_nStyle);
	DDX_CBIndex(pDX, IDC_MBICON, m_nIcon);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CMsgBoxDlg, CDialog)
	//{{AFX_MSG_MAP(CMsgBoxDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_HOOKED, OnHooked)
	ON_BN_CLICKED(IDC_NOTHOOKED, OnNotHooked)
	ON_BN_CLICKED(IDC_SUBCLASS, OnSubclass)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMsgBoxDlg message handlers

BOOL CMsgBoxDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CMsgBoxDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CMsgBoxDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

CString ReplyToString(int nReply)
{
    switch (nReply)
    {
    case IDOK:
        return "OK was pressed.";

    case IDCANCEL:
        return "CANCEL was pressed.";

    case IDYES:
        return "YES was pressed.";

    case IDNO:
        return "NO was pressed.";

    case IDABORT:
        return "ABORT was pressed.";

    case IDRETRY:
        return "RETRY was pressed.";

    case IDIGNORE:
        return "IGNORE was pressed.";

    default:
        return "";
    }
}

void CMsgBoxDlg::OnHooked() 
{
    UpdateData(TRUE);
    int rc = NabMessageBox(m_strMessage, m_nStyle|(m_nIcon+1)*0x10L);
    CString strMsg = ReplyToString(abs(rc));
    if (rc<0) strMsg += " Do not ask again checked.";
    else strMsg += " Do not ask again NOT checked.";
    AfxMessageBox(strMsg);
}

void CMsgBoxDlg::OnNotHooked() 
{
    UpdateData(TRUE);
    int rc = AfxMessageBox(m_strMessage, m_nStyle|(m_nIcon+1)*0x10L);
    AfxMessageBox(ReplyToString(rc));
}

void CMsgBoxDlg::OnSubclass() 
{
	UpdateData(TRUE);
    CnbMessageBox box(this);
	int rc = box.MessageBox(m_strMessage, m_nStyle|(m_nIcon+1)*0x10L);
    CString strMsg = ReplyToString(abs(rc));
    if (box.GetChecked()) strMsg += " Do not ask again checked.";
    else strMsg += " Do not ask again NOT checked.";
    AfxMessageBox(strMsg);
}

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


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