アプリケーション内のすべてのアクションがこの変数を参照して操作できるように、MFC アプリケーション内でグローバル変数を宣言したいのですが、その変数を正確に宣言できる場所がわかりません。このコードには多くのボタン アクションがあります。このアクション間で共有される文字列変数を宣言する必要があります。
// CalculatorDlg.cpp : implementation file
//
#include "stdafx.h"
#include "Calculator.h"
#include "CalculatorDlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#endif
// CAboutDlg dialog used for App About
class CAboutDlg : public CDialog
{
public:
CAboutDlg();
// Dialog Data
enum { IDD = IDD_ABOUTBOX };
public:
static CString myValue;
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
// Implementation
protected:
DECLARE_MESSAGE_MAP()
};
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) {}
void CAboutDlg::DoDataExchange(CDataExchange* pDX){
CDialog::DoDataExchange(pDX);
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()
// CCalculatorDlg dialog
CCalculatorDlg::CCalculatorDlg(CWnd* pParent /*=NULL*/)
: CDialog(CCalculatorDlg::IDD, pParent)
{
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CCalculatorDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
}
BEGIN_MESSAGE_MAP(CCalculatorDlg, CDialog)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
//}}AFX_MSG_MAP
ON_BN_CLICKED(IDC_BUTTON1, &CCalculatorDlg::OnBnClickedButton1)
ON_BN_CLICKED(IDC_BUTTON3, &CCalculatorDlg::OnBnClickedButton3)
ON_BN_CLICKED(IDC_BUTTON2, &CCalculatorDlg::OnBnClickedButton2)
ON_BN_CLICKED(IDC_BUTTON6, &CCalculatorDlg::OnBnClickedButton6)
ON_BN_CLICKED(IDC_BUTTON5, &CCalculatorDlg::OnBnClickedButton5)
ON_BN_CLICKED(IDC_BUTTON4, &CCalculatorDlg::OnBnClickedButton4)
ON_BN_CLICKED(IDC_BUTTON9, &CCalculatorDlg::OnBnClickedButton9)
ON_BN_CLICKED(IDC_BUTTON8, &CCalculatorDlg::OnBnClickedButton8)
ON_BN_CLICKED(IDC_BUTTON7, &CCalculatorDlg::OnBnClickedButton7)
END_MESSAGE_MAP()
// CCalculatorDlg message handlers
BOOL CCalculatorDlg::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 CCalculatorDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialog::OnSysCommand(nID, lParam);
}
}
// 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 CCalculatorDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // device context for painting
SendMessage(WM_ICONERASEBKGND, reinterpret_cast<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 function to obtain the cursor to display while the user drags
// the minimized window.
HCURSOR CCalculatorDlg::OnQueryDragIcon()
{
return static_cast<HCURSOR>(m_hIcon);
}
void CCalculatorDlg::OnBnClickedButton1()
{
/*
CString s="ABC";
LPCTSTR str_name = _T("Hello ")*/;
SetDlgItemText(IDC_EDIT1,_T"9");
/*CAboutDlg::myValue="9";*/
}
void CCalculatorDlg::OnBnClickedButton3(){}
void CCalculatorDlg::OnBnClickedButton2(){}
void CCalculatorDlg::OnBnClickedButton6(){}
void CCalculatorDlg::OnBnClickedButton5(){}
void CCalculatorDlg::OnBnClickedButton4(){}
void CCalculatorDlg::OnBnClickedButton9(){}
void CCalculatorDlg::OnBnClickedButton8(){}
void CCalculatorDlg::OnBnClickedButton7(){}