simple math in msvc++ 6

hello im trying to do some simple math in a dlg window in msvc++ 6.

anyway what i want to do is get 2 numbers input from a user multiply the first by 1 and the second by 1.5 and display the results. but it keeps putting them as 0. i am a newbie so i maybee doing this the wrong way.

btw i know it seems pointless to be multiplying something by 1 but i this is just the number i want to use while figuring the program out.

here is the code:

Code:

// battlesimv2Dlg.cpp : implementation file
//

#include "stdafx.h"
#include "battlesimv2.h"
#include "battlesimv2Dlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CBattlesimv2Dlg dialog

CBattlesimv2Dlg::CBattlesimv2Dlg(CWnd* pParent /*=NULL*/)
	: CDialog(CBattlesimv2Dlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CBattlesimv2Dlg)
	m_DEF_POINTS = _T("");
	m_OFFENSIVE_POINTS = _T("");
	m_OPPONENTS_TROOPS = _T("");
	m_RESULTS = _T("");
	m_YOUR_TROOPS = _T("");

	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CBattlesimv2Dlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CBattlesimv2Dlg)
	DDX_Text(pDX, IDC_DEFENSIVE_POINTS, m_DEF_POINTS);
	DDX_Text(pDX, IDC_OFFENSIVE_POINTS, m_OFFENSIVE_POINTS);
	DDX_Text(pDX, IDC_OPPONENTS_TROOPS, m_OPPONENTS_TROOPS);
	DDX_Text(pDX, IDC_RESULTS, m_RESULTS);
	DDX_Text(pDX, IDC_YOUR_TROOPS, m_YOUR_TROOPS);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CBattlesimv2Dlg, CDialog)
	//{{AFX_MSG_MAP(CBattlesimv2Dlg)
	ON_WM_SYSCOMMAND()
	ON_WM_DESTROY()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BTN_CALCULATE, OnBtnCalculate)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CBattlesimv2Dlg message handlers

BOOL CBattlesimv2Dlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// 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
}

void CBattlesimv2Dlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

void CBattlesimv2Dlg::OnDestroy()
{
	WinHelp(0L, HELP_QUIT);
	CDialog::OnDestroy();
}

// 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 CBattlesimv2Dlg::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 CBattlesimv2Dlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CBattlesimv2Dlg::OnBtnCalculate() 
{
	// TODO: Add your control notification handler code here
	double offTroops, defTroops, multi1, multi2;
	multi1 = 1;
	multi2 = 1.5;
	offTroops = atof(m_YOUR_TROOPS) * multi1;
	defTroops = atof(m_OPPONENTS_TROOPS) * multi2;

	
	m_OFFENSIVE_POINTS.Format("%.0f", offTroops);
    m_DEF_POINTS.Format("%.0f", defTroops);

	if (m_OFFENSIVE_POINTS > m_DEF_POINTS)
		MessageBox("congrats you should win.");
	else
		MessageBox("sorry you will lose.");

	UpdateData(FALSE);
}

Code:

void CBattlesimv2Dlg::OnBtnCalculate() 
{
    // TODO: Add your control notification handler code here
    UpdateData(); // load up member vars with current set of values
    ....
}

gg

thanks mate it works... i can't beleave i struggled so long on something so simple... better go read myself a c++ book.