MFC rich edit control 使用方法

主要程序代码：Edit1Dlg.cpp文件
void CEdit1Dlg::OnChangeAdd1() //加数
{
// TODO: If this is a RICHEDIT control, the control
will not
// send this notification unless you override the
CDialog::OnInitDialog()
// function and call
CRichEditCtrl().SetEventMask()
// with the ENM_CHANGE flag ORed into the
mask.
// TODO: Add your control notification handler code here
CEdit *edit=(CEdit*)GetDlgItem(IDC_ADD1);
CString
str;
edit->GetWindowText(str);
int
i=atoi(str);
if(i==0)
MessageBox("请输入数值！");
}
void CEdit1Dlg::OnOK() //确定
{
// TODO: Add extra validation
here
UpdateData(TRUE);//
int
i=GetCheckedRadioButton(IDC_RADIO1,IDC_RADIO4);
if(i==IDC_RADIO1)
//+
{
m_sum=m_add1+m_add2;
}
if(i==IDC_RADIO2)
//-
{
m_sum=m_add1-m_add2;
}
if(i==IDC_RADIO3)
//*
{
m_sum=m_add1*m_add2;
}
if(i==IDC_RADIO4) //
/
{
m_sum=m_add1/m_add2;
}
if(i==0)
{
MessageBox("请输入一种运算符");
}
UpdateData(FALSE);//记住是Update是e
//CDialog::OnOK();//此处应删除！！！
}
void CEdit1Dlg::OnChangeAdd2() //被加数
{
// TODO: If
this is a RICHEDIT control, the control will not
// send this notification
unless you override the CDialog::OnInitDialog()
// function and call
CRichEditCtrl().SetEventMask()
// with the ENM_CHANGE flag ORed into the
mask.
// TODO: Add your control notification handler code here
CEdit *edit=(CEdit*)GetDlgItem(IDC_ADD2);
CString
str;
edit->GetWindowText(str);
int
i=atoi(str);
if(i==0)
MessageBox("请输入数值！");
}
完整程序代码：
// Edit1Dlg.cpp : implementation file
//
#include "stdafx.h"
#include "Edit1.h"
#include "Edit1Dlg.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()
/////////////////////////////////////////////////////////////////////////////
//
CEdit1Dlg dialog
CEdit1Dlg::CEdit1Dlg(CWnd* pParent /*=NULL*/)
: CDialog(CEdit1Dlg::IDD,
pParent)
{
//{{AFX_DATA_INIT(CEdit1Dlg)
m_add1 = 0.0f;
m_add2 =
0.0f;
m_sum = 0.0f;
//}}AFX_DATA_INIT
// Note that LoadIcon does not
require a subsequent DestroyIcon in Win32
m_hIcon =
AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CEdit1Dlg::DoDataExchange(CDataExchange*
pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CEdit1Dlg)
DDX_Text(pDX,
IDC_ADD1, m_add1);
DDX_Text(pDX, IDC_ADD2, m_add2);
DDX_Text(pDX,
IDC_SUM, m_sum);
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CEdit1Dlg,
CDialog)
//{{AFX_MSG_MAP(CEdit1Dlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_EN_CHANGE(IDC_ADD1,
OnChangeAdd1)
ON_EN_CHANGE(IDC_ADD2, OnChangeAdd2)
ON_EN_CHANGE(IDC_SUM,
OnChangeSum)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
//
CEdit1Dlg message handlers
BOOL CEdit1Dlg::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 CEdit1Dlg::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 CEdit1Dlg::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
CEdit1Dlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}
void CEdit1Dlg::OnChangeAdd1()
{
// TODO: If this is a RICHEDIT
control, the control will not
// send this notification unless you override
the CDialog::OnInitDialog()
// function and call
CRichEditCtrl().SetEventMask()
// with the ENM_CHANGE flag ORed into the
mask.
// TODO: Add your control notification handler code here
CEdit *edit=(CEdit*)GetDlgItem(IDC_ADD1);
CString
str;
edit->GetWindowText(str);
int
i=atoi(str);
if(i==0)
MessageBox("请输入数值！");
}
void CEdit1Dlg::OnOK()
{
// TODO: Add extra validation here
UpdateData(TRUE);//
int
i=GetCheckedRadioButton(IDC_RADIO1,IDC_RADIO4);
if(i==IDC_RADIO1)
//+
{
m_sum=m_add1+m_add2;
}
if(i==IDC_RADIO2)
//-
{
m_sum=m_add1-m_add2;
}
if(i==IDC_RADIO3)
//*
{
m_sum=m_add1*m_add2;
}
if(i==IDC_RADIO4) //
/
{
m_sum=m_add1/m_add2;
}
if(i==0)
{
MessageBox("请输入一种运算符");
}
UpdateData(FALSE);//记住是Update是e
//CDialog::OnOK();//此处应删除！！！
}
void CEdit1Dlg::OnChangeAdd2()
{
// TODO: If this is a RICHEDIT
control, the control will not
// send this notification unless you override
the CDialog::OnInitDialog()
// function and call
CRichEditCtrl().SetEventMask()
// with the ENM_CHANGE flag ORed into the
mask.
// TODO: Add your control notification handler code here
CEdit *edit=(CEdit*)GetDlgItem(IDC_ADD2);
CString
str;
edit->GetWindowText(str);
int
i=atoi(str);
if(i==0)
MessageBox("请输入数值！");
}