VC编辑框 怎么统计输入汉字的个数
想在编辑框中每输入一个字，用另一个编辑框显示出输入汉字的个数，
从而来达到限制输入框输入汉字的个数。
比如说我限制编辑框可以输入100个汉字，输入第一个后显示1，剩余99.
第二个汉字显示2，剩余98.
谢谢。 没做过汉字，做过数字。
控件映射个字符串变量，每次对话框输入汉字，读取字符串长度。
试试吧。 手头只有vs2010，随便搞一下，凑合看吧。 非常感谢！
楼上可以用,一个汉字算两个字,
改一下就行了.
重新用VC编译了一下。
// fontlimitDlg.cpp : implementation file
//
#include "stdafx.h"
#include "fontlimit.h"
#include "fontlimitDlg.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()
/////////////////////////////////////////////////////////////////////////////
// CFontlimitDlg dialog
CFontlimitDlg::CFontlimitDlg(CWnd* pParent /*=NULL*/)
: CDialog(CFontlimitDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CFontlimitDlg)
m_inttext = _T("");
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CFontlimitDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CFontlimitDlg)
DDX_Control(pDX, IDC_CLEARR, m_clearr);
DDX_Control(pDX, IDC_CLEARF, m_clearf);
DDX_Control(pDX, IDC_EDIT2, m_Edit2);
DDX_Control(pDX, IDC_EDIT1, m_Edit);
DDX_Text(pDX, IDC_EDIT1, m_inttext);
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CFontlimitDlg, CDialog)
//{{AFX_MSG_MAP(CFontlimitDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_CLEARR, OnClearr)
ON_BN_CLICKED(IDC_CLEARF, OnClearf)
ON_EN_CHANGE(IDC_EDIT1, OnChangeEdit1)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CFontlimitDlg message handlers
BOOL CFontlimitDlg::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
m_Edit.SetLimitText(100);
return TRUE;// return TRUEunless you set the focus to a control
}
void CFontlimitDlg::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 CFontlimitDlg::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 CFontlimitDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}
void CFontlimitDlg::OnClearr()
{
// TODO: Add your control notification handler code here
}
void CFontlimitDlg::OnClearf()
{
// TODO: Add your control notification handler code here
}
void CFontlimitDlg::OnChangeEdit1()
{
// 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
CString str_tmp;
DWORD dw_len;
GetDlgItemText(IDC_EDIT1, str_tmp);
dw_len = str_tmp.GetLength();
str_tmp.Format(_T("已经输入%d个字，还可以输入%d个字"), dw_len,100-dw_len);
SetDlgItemText(IDC_STATIC, str_tmp);
}
需要注意UNICODE 与MBCS编码的问题，如果存在汉字与数字或者英文字母混合显示的情况。 {:lol:}似乎记得MFC有个API，可以统计中英混合文字符数的
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