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.